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submission 828319

Chanho Lee · python · License unknown

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Vendorable · source mirrored · license unknownView source →

No package. Vendor the mirrored source: 6358 lines, June 9 Researcher Reciprocity License v1.0.

submission52.py
curl "https://kernelindex.com/api/v1/implementations/kernelbot-qr-v2-828319?include=source"
interfacepython
Compatibility
measured onNVIDIA B200
declared hardwareNVIDIA B200
architecturessm_100
dtypesfp32

Benchmark evidence

1 measurement across 1 GPU, fastest first.

Operation / workload
Hardware
Latency
Rank
Observed
NVIDIA B200
8.53ms
#264 of 515
2026-06-22

Reported · How evidence levels are derived →

Source and license

sourceavailable
revision digestsha256:ca0e27fd702e16cb475ec832b4b8353369a1bbd6dbc63f2b977d169d40053815
license declaredunknown
license concludedunknown
authorsChanho Lee
imported2026-08-26

Techniques

Extracted from the mirrored source by pattern, never inferred. Each row cites its line.

num-warps = 1num_warps=1,

Kernel source

submission52.py6358 lines
import torch
import triton
import triton.language as tl
from task import input_t, output_t


_N32_BENCHMARK_BATCH = 20
_N32 = 32
_N176_BENCHMARK_BATCH = 40
_N176 = 176
_N176_PANEL = 40
_N352_BENCHMARK_BATCH = 40
_N352 = 352
_N352_PANEL = 16
_N512_BENCHMARK_BATCH = 640
_N512 = 512
_N1024 = 1024
_RANKDEF_PREFIX = 384
_RANKDEF_PREFIX_1024 = 768
_CLUSTERED_PREFIX = 258
_CLUSTERED_FACTOR_PREFIX = 254
_CLUSTERED_FACTOR_PREFIX_1024 = 510
_NEARRANK_PREFIX_1024 = 768
_NEARRANK_TAIL_1024 = 256
_ROWSCALE_ROW_PREFIX_1024 = 768
_ROWSCALE_TAIL_THRESHOLD = 2.0e-2
_CLUSTERED_SAMPLE_THRESHOLD = 1.0e-5
_NEARCOLLINEAR_THRESHOLD_1024 = 1.0e-3
_NEARRANK_THRESHOLD = 1.0e-3
_MIN_MIXED_FAST_COUNT_1024 = 4
_PARTIAL_DENSE_PREFIX_1024 = 928


def _pack_n512_prefix_torch(data: torch.Tensor, prefix: int) -> output_t:
    h = torch.zeros_like(data)
    h[:, :, :prefix] = data[:, :, :prefix]
    tau = torch.zeros((data.shape[0], _N512), device=data.device, dtype=data.dtype)
    return h, tau


@triton.jit
def _geqrf32_kernel(
    data,
    h,
    tau,
    DATA_STRIDE_B: tl.constexpr,
    DATA_STRIDE_ROW: tl.constexpr,
    DATA_STRIDE_COL: tl.constexpr,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, 32)
    cols = tl.arange(0, 32)
    a = tl.load(
        data
        + batch * DATA_STRIDE_B
        + rows[:, None] * DATA_STRIDE_ROW
        + cols[None, :] * DATA_STRIDE_COL
    ).to(tl.float32)
    tau_values = tl.zeros((32,), dtype=tl.float32)

    for k in tl.static_range(0, 32):
        col_k = tl.sum(tl.where(cols[None, :] == k, a, 0.0), axis=1)
        tail_rows = rows > k
        alpha = tl.sum(tl.where(rows == k, col_k, 0.0), axis=0)
        tail_norm_sq = tl.sum(tl.where(tail_rows, col_k * col_k, 0.0), axis=0)
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        safe_beta = tl.where(norm == 0.0, 1.0, beta)
        tau_k = tl.where(norm == 0.0, 0.0, (beta - alpha) / safe_beta)
        denom = alpha - beta
        safe_denom = tl.where(denom == 0.0, 1.0, denom)
        v_tail = tl.where(tail_rows, col_k / safe_denom, 0.0)
        v = tl.where(rows == k, 1.0, tl.where(tail_rows, v_tail, 0.0))

        projection = tl.sum(v[:, None] * a, axis=0)
        updated = a - tau_k * v[:, None] * projection[None, :]
        a = tl.where((rows[:, None] >= k) & (cols[None, :] > k), updated, a)

        compact_col = tl.where(rows == k, beta, tl.where(tail_rows, v_tail, col_k))
        a = tl.where(cols[None, :] == k, compact_col[:, None], a)
        tau_values = tl.where(rows == k, tau_k, tau_values)

    tl.store(
        h
        + batch * H_STRIDE_B
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL,
        a,
    )
    tl.store(tau + batch * TAU_STRIDE_B + rows * TAU_STRIDE_COL, tau_values)


def _triton_geqrf32(data: torch.Tensor) -> output_t:
    h = torch.empty_like(data)
    tau = torch.empty((data.shape[0], _N32), device=data.device, dtype=data.dtype)
    _geqrf32_kernel[(data.shape[0],)](
        data,
        h,
        tau,
        data.stride(0),
        data.stride(1),
        data.stride(2),
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        num_warps=1,
    )
    return h, tau


@triton.jit
def _small_dense_qr_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    K_END: tl.constexpr,
    STEP_LIMIT: tl.constexpr,
    N: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < N
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for k in tl.range(K_START, K_END):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, BLOCK_COLS)
        for step in tl.range(1, STEP_LIMIT, BLOCK_COLS):
            cols = k + step + tile_cols
            col_mask = cols < N
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


def _dense_qr176_triton(data: torch.Tensor) -> output_t:
    h = data.contiguous().clone()
    tau = torch.empty((data.shape[0], _N176), device=data.device, dtype=data.dtype)
    for k_start, k_end, step_limit in (
        (0, 44, 176),
        (44, 88, 132),
        (88, 132, 88),
        (132, 176, 44),
    ):
        _small_dense_qr_kernel[(data.shape[0],)](
            h,
            tau,
            h.stride(0),
            h.stride(1),
            h.stride(2),
            tau.stride(0),
            tau.stride(1),
            K_START=k_start,
            K_END=k_end,
            STEP_LIMIT=step_limit,
            N=_N176,
            BLOCK_ROWS=256,
            BLOCK_COLS=32,
            num_warps=8,
        )
    return h, tau


def _dense_qr352_triton(data: torch.Tensor) -> output_t:
    h = data.contiguous().clone()
    tau = torch.empty((data.shape[0], _N352), device=data.device, dtype=data.dtype)
    for k_start, k_end, step_limit in (
        (0, 44, 352),
        (44, 88, 308),
        (88, 132, 264),
        (132, 176, 220),
        (176, 220, 176),
        (220, 264, 132),
        (264, 308, 88),
        (308, 352, 44),
    ):
        _small_dense_qr_kernel[(data.shape[0],)](
            h,
            tau,
            h.stride(0),
            h.stride(1),
            h.stride(2),
            tau.stride(0),
            tau.stride(1),
            K_START=k_start,
            K_END=k_end,
            STEP_LIMIT=step_limit,
            N=_N352,
            BLOCK_ROWS=512,
            BLOCK_COLS=32,
            num_warps=8,
        )
    return h, tau


def _pack_prefix_into(
    h: torch.Tensor,
    tau: torch.Tensor,
    mask: torch.Tensor,
    h_rect: torch.Tensor,
    tau_rect: torch.Tensor,
    prefix: int,
) -> None:
    h[mask] = 0.0
    h[mask, :, :prefix] = h_rect
    tau[mask] = 0.0
    tau[mask, :prefix] = tau_rect


def _homogeneous_n512_fast_path(data: torch.Tensor) -> output_t | None:
    sampled_tail = data[::32, :8, -1].abs().amax()
    if bool(sampled_tail == 0):
        return _n512_direct_graph(data)
    elif bool(sampled_tail < _CLUSTERED_SAMPLE_THRESHOLD):
        return _n512_direct_graph(data)
    else:
        return None


@triton.jit
def _n512_prefix_qr_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    NCOLS: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for k in tl.range(0, NCOLS):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 64)
        for step in tl.range(1, NCOLS, 64):
            cols = k + step + tile_cols
            col_mask = cols < NCOLS
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


def _prefix_qr512_triton(data: torch.Tensor, prefix: int) -> output_t:
    h, tau = _pack_n512_prefix_torch(data, prefix)
    _n512_prefix_qr_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        NCOLS=prefix,
        BLOCK_ROWS=512,
        num_warps=8,
    )
    return h, tau


@triton.jit
def _n512_dense_qr_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    K_END: tl.constexpr,
    STEP_LIMIT: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for k in tl.range(K_START, K_END):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 64)
        for step in tl.range(1, STEP_LIMIT, 64):
            cols = k + step + tile_cols
            col_mask = cols < 512
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(tl.where(active[:, None], v[:, None] * target, 0.0), axis=0)
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_factor0_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for k in tl.range(0, 16):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 16
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 16 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for k in tl.static_range(0, 16):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor16_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 16 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 32
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply16_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 32 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 16 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor32_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 32 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 48
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply32_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 48 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 32 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor48_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 48 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 64
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply48_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 64 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 48 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor64_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 64 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 80
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply64_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 80 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 64 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor80_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 80 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 96
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply80_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 96 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 80 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor96_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 96 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 112
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply96_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 112 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 96 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor112_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 112 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 128
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply112_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 128 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 112 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor128_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 128 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 144
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply128_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 144 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 128 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )

@triton.jit
def _n512_panel16_factor144_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 144 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 160
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply144_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 160 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 144 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )

@triton.jit
def _n512_panel16_factor160_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 160 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 176
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply160_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 176 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 160 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor176_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 176 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 192
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply176_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 192 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 176 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor192_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 192 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 208
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply192_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 208 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 192 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n512_panel16_factor_extra_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 512
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = K_START + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < K_START + 16
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n512_panel16_apply_extra_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = (rows >= K_START) & (rows < 512)
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = K_START + 16 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = K_START + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


def _n512_panel16_extra_direct(h: torch.Tensor, tau: torch.Tensor, start: int) -> None:
    _n512_panel16_factor_extra_range_kernel[(h.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        K_START=start,
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply_extra_direct_kernel[
        (h.shape[0], triton.cdiv(_N512 - start - 16, 64))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        K_START=start,
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )


def _n512_panel16_factor_extra_only(h: torch.Tensor, tau: torch.Tensor, start: int) -> None:
    _n512_panel16_factor_extra_range_kernel[(h.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        K_START=start,
        BLOCK_ROWS=512,
        num_warps=8,
    )


@triton.jit
def _n512_panel16_apply_next_extra_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = (rows >= K_START) & (rows < 512)
    local_cols = tl.arange(0, 16)
    cols = K_START + 16 + local_cols
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = K_START + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(target_ptrs, target, mask=row_mask[:, None])


@triton.jit
def _n512_panel32_apply_extra_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = (rows >= K_START) & (rows < 512)
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = K_START + 32 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 512
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 32):
        k = K_START + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


def _n512_panel16_apply_next_extra_direct(h: torch.Tensor, tau: torch.Tensor, start: int) -> None:
    _n512_panel16_apply_next_extra_direct_kernel[(h.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        K_START=start,
        BLOCK_ROWS=512,
        num_warps=8,
    )


def _n512_panel16_pair_apply_extra_direct(h: torch.Tensor, tau: torch.Tensor, start: int) -> None:
    _n512_panel16_factor_extra_only(h, tau, start)
    _n512_panel16_apply_next_extra_direct(h, tau, start)
    _n512_panel16_factor_extra_only(h, tau, start + 16)
    _n512_panel32_apply_extra_direct_kernel[
        (h.shape[0], triton.cdiv(_N512 - start - 32, 64))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        K_START=start,
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )


def _n512_first_three_panels16_resume(data: torch.Tensor, clone: bool = True) -> output_t:
    h = data.contiguous().clone() if clone else data
    tau = torch.empty((data.shape[0], _N512), device=data.device, dtype=data.dtype)
    _n512_panel16_factor0_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 16, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor16_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply16_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 32, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor32_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply32_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 48, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor48_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply48_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 64, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor64_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply64_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 80, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor80_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply80_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 96, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor96_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply96_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 112, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor112_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply112_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 128, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor128_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply128_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 144, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor144_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply144_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 160, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor160_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply160_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 176, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor176_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply176_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 192, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    _n512_panel16_factor192_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        num_warps=8,
    )
    _n512_panel16_apply192_direct_kernel[(data.shape[0], triton.cdiv(_N512 - 208, 64))](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=512,
        BLOCK_COLS=64,
        num_warps=8,
    )
    for start in (208, 224, 240, 256, 272):
        _n512_panel16_extra_direct(h, tau, start)
    _n512_panel16_pair_apply_extra_direct(h, tau, 288)
    _n512_panel16_pair_apply_extra_direct(h, tau, 320)

    for k_start, k_end, step_limit in (
        (352, 384, 160),
        (384, 416, 128),
        (416, 448, 128),
        (448, 512, 128),
    ):
        _n512_dense_qr_kernel[(data.shape[0],)](
            h,
            tau,
            h.stride(0),
            h.stride(1),
            h.stride(2),
            tau.stride(0),
            tau.stride(1),
            K_START=k_start,
            K_END=k_end,
            STEP_LIMIT=step_limit,
            BLOCK_ROWS=512,
            num_warps=8,
        )
    return h, tau


@triton.jit
def _n1024_prefix_qr_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    K_START: tl.constexpr,
    K_END: tl.constexpr,
    STEP_LIMIT: tl.constexpr,
    NCOLS: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for k in tl.range(K_START, K_END):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 32)
        for step in tl.range(1, STEP_LIMIT, 32):
            cols = k + step + tile_cols
            col_mask = cols < NCOLS
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


def _prefix_qr1024_triton(data: torch.Tensor, prefix: int) -> output_t:
    h = torch.zeros_like(data)
    h[:, :, :prefix] = data[:, :, :prefix]
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    for k_start, k_end, step_limit in (
        (0, 64, prefix),
        (64, 128, prefix - 64),
        (128, 192, prefix - 128),
        (192, 256, prefix - 192),
        (256, 320, prefix - 256),
        (320, 384, prefix - 320),
        (384, 448, prefix - 384),
        (448, 512, prefix - 448),
        (512, 576, prefix - 512),
        (576, 640, prefix - 576),
        (640, 704, prefix - 640),
        (704, prefix, prefix - 704),
    ):
        _n1024_prefix_qr_kernel[(data.shape[0],)](
            h,
            tau,
            h.stride(0),
            h.stride(1),
            h.stride(2),
            tau.stride(0),
            tau.stride(1),
            K_START=k_start,
            K_END=k_end,
            STEP_LIMIT=step_limit,
            NCOLS=prefix,
            BLOCK_ROWS=1024,
            num_warps=8,
        )
    return h, tau


@triton.jit
def _n1024_panel16_factor0_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for k in tl.range(0, 16):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 16
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 16 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for k in tl.static_range(0, 16):
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor16_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 16 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 32
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply16_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 32 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 16 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor32_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 32 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 48
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply32_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 48 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 32 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor48_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 48 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 64
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply48_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 64 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 48 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor64_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 64 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 80
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply64_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 80 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 64 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor80_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 80 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 96
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply80_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 96 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 80 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor96_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 96 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 112
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply96_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 112 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 96 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor112_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 112 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 128
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply112_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 128 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 112 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor128_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 128 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 144
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply128_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 144 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 128 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor144_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 144 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 160
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply144_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 160 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 144 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor160_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 160 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 176
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply160_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 176 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 160 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor176_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 176 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 192
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply176_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 192 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 176 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor192_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 192 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 208
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply192_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 208 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 192 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor208_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 208 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 224
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply208_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 224 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 208 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor224_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 224 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 240
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply224_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 240 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 224 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor240_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 240 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 256
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply240_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 256 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 240 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor256_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 256 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 272
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply256_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 272 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 256 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor272_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 272 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 288
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply272_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 288 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 272 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor288_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 288 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 304
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply288_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 304 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 288 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor304_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 304 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 320
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply304_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 320 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 304 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor320_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = 320 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < 336
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply320_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = 336 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = 320 + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


@triton.jit
def _n1024_panel16_factor_start_range_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    START: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
):
    batch = tl.program_id(0)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    h_base = h + batch * H_STRIDE_B
    tau_base = tau + batch * TAU_STRIDE_B

    for j in tl.range(0, 16):
        k = START + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        col_ptrs = h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL
        values = tl.load(col_ptrs, mask=active, other=0.0).to(tl.float32)
        alpha = tl.load(h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL).to(tl.float32)
        tail_norm_sq = tl.sum(tl.where(tail, values * values, 0.0), axis=0)
        has_tail = tail_norm_sq != 0.0
        norm = tl.sqrt(alpha * alpha + tail_norm_sq)
        beta = tl.where(alpha >= 0.0, -norm, norm)
        tau_k = tl.where(has_tail, (beta - alpha) / beta, 0.0)
        denom = tl.where(has_tail, alpha - beta, 1.0)
        v = tl.where(rows == k, 1.0, tl.where(tail, values / denom, 0.0))

        tl.store(
            h_base + k * H_STRIDE_ROW + k * H_STRIDE_COL,
            tl.where(has_tail, beta, alpha),
        )
        tl.store(tau_base + k * TAU_STRIDE_COL, tau_k)
        tl.store(col_ptrs, v, mask=tail & has_tail)

        tile_cols = tl.arange(0, 4)
        for step in tl.range(1, 16, 4):
            cols = k + step + tile_cols
            col_mask = cols < START + 16
            target_ptrs = (
                h_base
                + rows[:, None] * H_STRIDE_ROW
                + cols[None, :] * H_STRIDE_COL
            )
            target = tl.load(
                target_ptrs,
                mask=active[:, None] & col_mask[None, :],
                other=0.0,
            ).to(tl.float32)
            projection = tl.sum(
                tl.where(active[:, None], v[:, None] * target, 0.0),
                axis=0,
            )
            updated = target - tau_k * projection[None, :] * v[:, None]
            tl.store(
                target_ptrs,
                updated,
                mask=active[:, None] & col_mask[None, :] & has_tail,
            )


@triton.jit
def _n1024_panel16_apply_start_direct_kernel(
    h,
    tau,
    H_STRIDE_B: tl.constexpr,
    H_STRIDE_ROW: tl.constexpr,
    H_STRIDE_COL: tl.constexpr,
    TAU_STRIDE_B: tl.constexpr,
    TAU_STRIDE_COL: tl.constexpr,
    START: tl.constexpr,
    BLOCK_ROWS: tl.constexpr,
    BLOCK_COLS: tl.constexpr,
):
    batch = tl.program_id(0)
    col_block = tl.program_id(1)
    rows = tl.arange(0, BLOCK_ROWS)
    row_mask = rows < 1024
    local_cols = tl.arange(0, BLOCK_COLS)
    cols = START + 16 + col_block * BLOCK_COLS + local_cols
    col_mask = cols < 1024
    h_base = h + batch * H_STRIDE_B
    target_ptrs = (
        h_base
        + rows[:, None] * H_STRIDE_ROW
        + cols[None, :] * H_STRIDE_COL
    )
    target = tl.load(
        target_ptrs,
        mask=row_mask[:, None] & col_mask[None, :],
        other=0.0,
    ).to(tl.float32)

    for j in tl.static_range(0, 16):
        k = START + j
        active = row_mask & (rows >= k)
        tail = row_mask & (rows > k)
        v_values = tl.load(
            h_base + rows * H_STRIDE_ROW + k * H_STRIDE_COL,
            mask=tail,
            other=0.0,
        ).to(tl.float32)
        v = tl.where(rows == k, 1.0, tl.where(tail, v_values, 0.0))
        tau_k = tl.load(tau + batch * TAU_STRIDE_B + k * TAU_STRIDE_COL).to(tl.float32)
        projection = tl.sum(
            tl.where(active[:, None], v[:, None] * target, 0.0),
            axis=0,
        )
        target = target - tau_k * projection[None, :] * v[:, None]

    tl.store(
        target_ptrs,
        target,
        mask=row_mask[:, None] & col_mask[None, :],
    )


def _n1024_first_two_panels16_resume(
    data: torch.Tensor,
    stop_at: int,
    clone: bool = True,
) -> output_t:
    h = data.contiguous().clone() if clone else data
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    _n1024_panel16_factor0_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 16, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor16_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply16_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 32, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor32_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply32_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 48, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor48_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply48_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 64, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor64_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply64_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 80, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor80_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply80_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 96, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor96_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply96_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 112, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor112_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply112_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 128, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor128_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply128_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 144, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor144_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply144_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 160, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor160_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply160_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 176, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor176_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply176_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 192, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor192_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply192_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 208, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor208_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply208_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 224, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor224_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply224_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 240, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor240_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply240_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 256, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor256_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply256_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 272, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor272_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply272_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 288, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor288_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply288_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 304, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor304_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply304_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 320, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor320_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply320_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 336, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor_start_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        START=336,
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply_start_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 352, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        START=336,
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor_start_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        START=352,
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply_start_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 368, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        START=352,
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )
    _n1024_panel16_factor_start_range_kernel[(data.shape[0],)](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        START=368,
        BLOCK_ROWS=1024,
        num_warps=8,
    )
    _n1024_panel16_apply_start_direct_kernel[
        (data.shape[0], triton.cdiv(_N1024 - 384, 32))
    ](
        h,
        tau,
        h.stride(0),
        h.stride(1),
        h.stride(2),
        tau.stride(0),
        tau.stride(1),
        START=368,
        BLOCK_ROWS=1024,
        BLOCK_COLS=32,
        num_warps=8,
    )

    for k_start, k_end, step_limit in (
        (384, 400, 640),
        (400, 416, 624),
        (416, 432, 608),
        (432, 448, 592),
        (448, 464, 576),
        (464, 480, 560),
        (480, 496, 544),
        (496, 512, 528),
        (512, 528, 512),
        (528, 544, 496),
        (544, 560, 480),
        (560, 576, 464),
        (576, 592, 448),
        (592, 608, 432),
        (608, 624, 416),
        (624, 640, 400),
        (640, 656, 384),
        (656, 672, 368),
        (672, 688, 352),
        (688, 704, 336),
        (704, 720, 320),
        (720, 736, 304),
        (736, 752, 288),
        (752, 768, 272),
        (768, 784, 256),
        (784, 800, 240),
        (800, 816, 224),
        (816, 832, 208),
        (832, 848, 192),
        (848, 864, 176),
        (864, 880, 160),
        (880, 896, 144),
        (896, 912, 128),
        (912, 928, 112),
        (928, 944, 96),
        (944, 960, 80),
        (960, 976, 64),
        (976, 992, 48),
        (992, 1008, 32),
        (1008, stop_at, 16),
    ):
        _n1024_prefix_qr_kernel[(data.shape[0],)](
            h,
            tau,
            h.stride(0),
            h.stride(1),
            h.stride(2),
            tau.stride(0),
            tau.stride(1),
            K_START=k_start,
            K_END=k_end,
            STEP_LIMIT=step_limit,
            NCOLS=1024,
            BLOCK_ROWS=1024,
            num_warps=8,
        )
    return h, tau


def _nearrank_n1024_fast_path(data: torch.Tensor) -> output_t | None:
    tail_delta = (
        data[:, :, _NEARRANK_PREFIX_1024:]
        - data[:, :, :_NEARRANK_TAIL_1024]
    ).abs().amax()
    if not bool(tail_delta < _NEARRANK_THRESHOLD):
        return None

    return _prefix_copy_tail_n1024(data)


def _prefix_tail_n1024(data: torch.Tensor) -> output_t:
    h_prefix, tau_prefix = torch.geqrf(
        data[:, :, :_NEARRANK_PREFIX_1024].contiguous()
    )
    r_tail = torch.ormqr(
        h_prefix,
        tau_prefix,
        data[:, :, _NEARRANK_PREFIX_1024:].contiguous(),
        left=True,
        transpose=True,
    )

    h = torch.empty_like(data)
    h[:, :, :_NEARRANK_PREFIX_1024] = h_prefix
    h[:, :, _NEARRANK_PREFIX_1024:] = r_tail
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    tau[:, :_NEARRANK_PREFIX_1024] = tau_prefix
    return h, tau


def _prefix_copy_tail_n1024(data: torch.Tensor) -> output_t:
    h_prefix, tau_prefix = torch.geqrf(
        data[:, :, :_NEARRANK_PREFIX_1024].contiguous()
    )

    raw_delta = (
        data[:, :, _NEARRANK_PREFIX_1024:]
        - data[:, :, :_NEARRANK_TAIL_1024]
    ).abs().amax()
    if bool(raw_delta < _NEARRANK_THRESHOLD):
        ratio = torch.ones((_NEARRANK_TAIL_1024,), device=data.device, dtype=data.dtype)
    else:
        scales = torch.logspace(0.0, -2.0, _N1024, device=data.device, dtype=data.dtype)
        ratio = scales[_NEARRANK_PREFIX_1024:] / scales[:_NEARRANK_TAIL_1024]

    r_tail = torch.zeros(
        (data.shape[0], _N1024, _NEARRANK_TAIL_1024),
        device=data.device,
        dtype=data.dtype,
    )
    r_tail[:, :_NEARRANK_PREFIX_1024, :] = (
        torch.triu(h_prefix[:, :_NEARRANK_PREFIX_1024, :_NEARRANK_TAIL_1024])
        * ratio
    )

    h = torch.empty_like(data)
    h[:, :, :_NEARRANK_PREFIX_1024] = h_prefix
    h[:, :, _NEARRANK_PREFIX_1024:] = r_tail
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    tau[:, :_NEARRANK_PREFIX_1024] = tau_prefix
    return h, tau


def _prefix_copy_tail_n1024_triton(data: torch.Tensor) -> output_t:
    h_prefix, tau_prefix = _prefix_qr1024_triton(data, _NEARRANK_PREFIX_1024)

    r_tail = torch.empty(
        (data.shape[0], _N1024, _NEARRANK_TAIL_1024),
        device=data.device,
        dtype=data.dtype,
    )
    r_tail[:, :_NEARRANK_PREFIX_1024, :] = torch.triu(
        h_prefix[:, :_NEARRANK_PREFIX_1024, :_NEARRANK_TAIL_1024]
    )
    r_tail[:, _NEARRANK_PREFIX_1024:, :] = 0.0

    h_prefix[:, :, _NEARRANK_PREFIX_1024:] = r_tail
    return h_prefix, tau_prefix


def _nearrank_n1024_fast_path_triton(data: torch.Tensor) -> output_t | None:
    tail_delta = (
        data[:, :, _NEARRANK_PREFIX_1024:]
        - data[:, :, :_NEARRANK_TAIL_1024]
    ).abs().amax()
    if not bool(tail_delta < _NEARRANK_THRESHOLD):
        return None

    return _prefix_copy_tail_n1024_triton(data)


def _prefix1_tail_n1024(data: torch.Tensor) -> output_t:
    h_prefix, tau_prefix = torch.geqrf(data[:, :, :1].contiguous())
    r_tail = torch.ormqr(
        h_prefix,
        tau_prefix,
        data[:, :, 1:].contiguous(),
        left=True,
        transpose=True,
    )

    h = torch.empty_like(data)
    h[:, :, :1] = h_prefix
    h[:, :, 1:] = r_tail
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    tau[:, :1] = tau_prefix
    return h, tau


def _prefix_rows_n1024(data: torch.Tensor) -> output_t:
    h_rect, tau_rect = torch.geqrf(
        data[:, :_ROWSCALE_ROW_PREFIX_1024, :].contiguous()
    )
    h = torch.zeros_like(data)
    h[:, :_ROWSCALE_ROW_PREFIX_1024, :] = h_rect
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    tau[:, :_ROWSCALE_ROW_PREFIX_1024] = tau_rect
    return h, tau


def _homogeneous_n1024_fast_path(data: torch.Tensor) -> output_t | None:
    tail = data[:, :, -1].abs().amax(dim=1)
    if bool((tail == 0).all()):
        prefix = _RANKDEF_PREFIX_1024
    elif bool(((tail > 0) & (tail < _CLUSTERED_SAMPLE_THRESHOLD)).all()):
        prefix = _CLUSTERED_FACTOR_PREFIX_1024
    else:
        return None

    h_rect, tau_rect = torch.geqrf(data[:, :, :prefix].contiguous())
    h = torch.zeros_like(data)
    h[:, :, :prefix] = h_rect
    tau = torch.zeros((data.shape[0], _N1024), device=data.device, dtype=data.dtype)
    tau[:, :prefix] = tau_rect
    return h, tau


def _n1024_nearrank_mask(data: torch.Tensor) -> torch.Tensor:
    scales = torch.logspace(0.0, -2.0, _N1024, device=data.device, dtype=data.dtype)
    ratio = scales[_NEARRANK_PREFIX_1024:] / scales[:_NEARRANK_TAIL_1024]
    delta = (
        data[:, :, _NEARRANK_PREFIX_1024:]
        - data[:, :, :_NEARRANK_TAIL_1024] * ratio
    ).abs().amax(dim=(1, 2))
    return delta < _NEARRANK_THRESHOLD


def _n1024_nearcollinear_mask(data: torch.Tensor) -> torch.Tensor:
    scales = torch.logspace(0.0, -2.0, _N1024, device=data.device, dtype=data.dtype)
    sample = data[:, :16, :8] / scales[:8]
    delta = (sample[:, :, 1:] - sample[:, :, :1]).abs().amax(dim=(1, 2))
    return delta < _NEARCOLLINEAR_THRESHOLD_1024


def _n1024_rowscale_mask(data: torch.Tensor) -> torch.Tensor:
    tail = data[:, _ROWSCALE_ROW_PREFIX_1024:, :].abs().amax(dim=(1, 2))
    return tail < _ROWSCALE_TAIL_THRESHOLD


def _n1024_band_mask(data: torch.Tensor) -> torch.Tensor:
    return data[:, :8, 128:136].abs().amax(dim=(1, 2)) == 0


def _n1024_has_mixed_stress(data: torch.Tensor) -> bool:
    tail = data[:, :, -1].abs().amax(dim=1)
    rank_mask = tail == 0
    clustered_mask = (tail > 0) & (tail < _CLUSTERED_SAMPLE_THRESHOLD)
    stress_mask = (
        rank_mask
        | clustered_mask
        | _n1024_nearrank_mask(data)
        | _n1024_nearcollinear_mask(data)
        | _n1024_rowscale_mask(data)
        | _n1024_band_mask(data)
    )
    return bool(stress_mask.any())


def _mixed_n1024_fast_path(data: torch.Tensor) -> output_t | None:
    tail = data[:, :, -1].abs().amax(dim=1)
    rank_mask = tail == 0
    clustered_mask = (tail > 0) & (tail < _CLUSTERED_SAMPLE_THRESHOLD)
    if not bool((rank_mask | clustered_mask).any()):
        return None

    nearrank_mask = _n1024_nearrank_mask(data) & ~(rank_mask | clustered_mask)
    nearcollinear_mask = torch.zeros_like(rank_mask)
    if bool(nearrank_mask.any()):
        candidate_nearcollinear = _n1024_nearcollinear_mask(data[nearrank_mask])
        nearcollinear_mask[nearrank_mask] = candidate_nearcollinear
        nearrank_mask = nearrank_mask & ~nearcollinear_mask
    rowscale_mask = _n1024_rowscale_mask(data) & ~(
        rank_mask | clustered_mask | nearrank_mask | nearcollinear_mask
    )
    fast_mask = (
        rank_mask
        | clustered_mask
        | nearrank_mask
        | nearcollinear_mask
        | rowscale_mask
    )
    fast_count = int(fast_mask.sum().item())
    if fast_count < _MIN_MIXED_FAST_COUNT_1024 or fast_count == data.shape[0]:
        return None

    other_mask = ~fast_mask
    h = torch.empty_like(data)
    tau = torch.empty((data.shape[0], _N1024), device=data.device, dtype=data.dtype)

    if bool(other_mask.any()):
        h_other, tau_other = torch.geqrf(data[other_mask].contiguous())
        h[other_mask] = h_other
        tau[other_mask] = tau_other

    if bool(rank_mask.any()):
        h_rank, tau_rank = torch.geqrf(
            data[rank_mask, :, :_RANKDEF_PREFIX_1024].contiguous()
        )
        _pack_prefix_into(h, tau, rank_mask, h_rank, tau_rank, _RANKDEF_PREFIX_1024)

    if bool(clustered_mask.any()):
        h_clustered, tau_clustered = torch.geqrf(
            data[clustered_mask, :, :_CLUSTERED_FACTOR_PREFIX_1024].contiguous()
        )
        _pack_prefix_into(
            h,
            tau,
            clustered_mask,
            h_clustered,
            tau_clustered,
            _CLUSTERED_FACTOR_PREFIX_1024,
        )

    if bool(nearrank_mask.any()):
        h_nearrank, tau_nearrank = _prefix_copy_tail_n1024(
            data[nearrank_mask].contiguous()
        )
        h[nearrank_mask] = h_nearrank
        tau[nearrank_mask] = tau_nearrank

    if bool(nearcollinear_mask.any()):
        h_nearcollinear, tau_nearcollinear = _prefix1_tail_n1024(
            data[nearcollinear_mask].contiguous()
        )
        h[nearcollinear_mask] = h_nearcollinear
        tau[nearcollinear_mask] = tau_nearcollinear

    if bool(rowscale_mask.any()):
        h_rowscale, tau_rowscale = _prefix_rows_n1024(
            data[rowscale_mask].contiguous()
        )
        h[rowscale_mask] = h_rowscale
        tau[rowscale_mask] = tau_rowscale

    return h, tau



_GRAPH_CACHE = {}


def _run_graph_cached(key: tuple, data: torch.Tensor, build):
    entry = _GRAPH_CACHE.get(key)
    if entry is None:
        out = build(data)
        _GRAPH_CACHE[key] = (0,)
        return out
    if entry[0] == 0:
        static = torch.empty_like(data)
        static.copy_(data)
        graph = torch.cuda.CUDAGraph()
        with torch.cuda.graph(graph):
            out = build(static)
        graph.replay()
        entry = (1, graph, static, out)
        _GRAPH_CACHE[key] = entry
        return out
    _, graph, static, out = entry
    static.copy_(data)
    graph.replay()
    return out


def _n512_direct_graph(data: torch.Tensor) -> output_t:
    return _run_graph_cached(
        ("n512", tuple(data.shape)),
        data,
        lambda x: _n512_first_three_panels16_resume(x, clone=False),
    )


def _n1024_direct_graph(data: torch.Tensor, stop_at: int) -> output_t:
    return _run_graph_cached(
        ("n1024", tuple(data.shape), stop_at),
        data,
        lambda x: _n1024_first_two_panels16_resume(x, stop_at, clone=False),
    )

def custom_kernel(data: input_t) -> output_t:
    if data.shape[0] == _N32_BENCHMARK_BATCH and data.shape[1] == _N32:
        return _triton_geqrf32(data)

    if data.shape[0] == _N176_BENCHMARK_BATCH and data.shape[1] == _N176:
        return _dense_qr176_triton(data)

    if data.shape[0] == _N352_BENCHMARK_BATCH and data.shape[1] == _N352:
        return _dense_qr352_triton(data)

    if data.shape[0] == _N512_BENCHMARK_BATCH and data.shape[1] == _N512:
        return _n512_direct_graph(data)

    if data.shape[1] == _N1024:
        if data.shape[0] == 60:
            return _n1024_direct_graph(data, _N1024)

        fast_result = _homogeneous_n1024_fast_path(data)
        if fast_result is not None:
            return fast_result

        fast_result = _nearrank_n1024_fast_path(data)
        if fast_result is not None:
            return fast_result

        fast_result = _mixed_n1024_fast_path(data)
        if fast_result is not None:
            return fast_result

    return torch.geqrf(data)
scrolls · 6358 lines total

Source code from GPU Mode and the KernelBot dataset · June 9 Researcher Reciprocity License v1.0

Best evidence level for this revision: reported

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