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submission 658848

Hamza · python · License unknown

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Vendorable · source mirrored · license unknownView source →

No package. Vendor the mirrored source: 134 lines, June 9 Researcher Reciprocity License v1.0.

submission.py
curl "https://kernelindex.com/api/v1/implementations/kernelbot-amd-moe-mxfp4-658848?include=source"
interfacepython
Compatibility
measured onAMD Instinct MI355X
declared hardwareAMD Instinct MI355X
architecturesgfx950
dtypesbf16, fp32, fp8_e8m0, int32, mxfp4

Benchmark evidence

1 measurement across 1 GPU, fastest first.

Operation / workload
Hardware
Latency
Rank
Observed
AMD MXFP4 MoEsuite of 7 cases
AMD Instinct MI355X
139.9µs
#114 of 782
2026-03-28

Reported · How evidence levels are derived →

Source and license

sourceavailable
revision digestsha256:e573dc2c9fec5f8e419ee2421a24958230665000e8a1e69351d36958a98a5787
license declaredunknown
license concludedunknown
authorsHamza
imported2026-08-15

Techniques

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

fp4"stage": 2, "a_dtype": "fp4", "b_dtype": "fp4", "out_dtype": "bf16",

Kernel source

submission.py134 lines
#!POPCORN leaderboard amd-moe-mxfp4
#!POPCORN gpu MI355X

import os
import sys
import torch
from task import input_t, output_t

# System-level env vars (set before any aiter imports trigger caching)
os.environ["HIP_FORCE_DEV_KERNARG"] = "1"
os.environ["AITER_USE_NT"] = "1"

from aiter import ActivationType, QuantType
from aiter.fused_moe import fused_moe
import aiter.fused_moe as _fm

# Register t16x256x128_atomic in _KERNEL_PARAMS (not in default stage2 tile_ms)
try:
    from aiter.ops.flydsl.moe_kernels import _KERNEL_PARAMS
    _t16_name = "flydsl_moe2_afp4_wfp4_bf16_t16x256x128_atomic"
    if _t16_name not in _KERNEL_PARAMS:
        _KERNEL_PARAMS[_t16_name] = {
            "stage": 2, "a_dtype": "fp4", "b_dtype": "fp4", "out_dtype": "bf16",
            "tile_m": 16, "tile_n": 256, "tile_k": 128,
            "mode": "atomic", "MPerBlock": 16,
        }
        print(f"[moe] Registered {_t16_name} in _KERNEL_PARAMS", file=sys.stderr)
except Exception as e:
    print(f"[moe] _KERNEL_PARAMS registration failed: {e}", file=sys.stderr)

# CSV injection: shapes 6+7 with FlyDSL t16x256x128 stage2
_tune_file = _fm.AITER_CONFIGS.AITER_CONFIG_FMOE_FILE
try:
    with open(_tune_file, "a") as f:
        # Shape 6: E=33, inter=512, block_m=32 CK stage1, FlyDSL t16 stage2
        f.write("256,512,7168,512,33,9,ActivationType.Silu,torch.bfloat16,torch.float4_e2m1fn_x2,torch.float4_e2m1fn_x2,QuantType.per_1x32,1,0,32,0,0,moe_ck2stages_gemm1_256x32x128x128_1x4_MulABScaleShuffled_v3_Nswizzle0_Quant3_MulRoutedWeight0_silu_FP4X2_FP4X2_B16,0.0%,0,flydsl_moe2_afp4_wfp4_bf16_t16x256x128_atomic,0.0%,0,0,0,0\n")
        # Shape 7: E=33, inter=2048, block_m=64 CK stage1, FlyDSL t16 stage2
        f.write("256,512,7168,2048,33,9,ActivationType.Silu,torch.bfloat16,torch.float4_e2m1fn_x2,torch.float4_e2m1fn_x2,QuantType.per_1x32,1,0,64,0,0,moe_ck2stages_gemm1_256x64x128x128_1x4_MulABScaleShuffled_v3_Nswizzle0_Quant3_MulRoutedWeight0_silu_FP4X2_FP4X2_B16,0.0%,0,flydsl_moe2_afp4_wfp4_bf16_t16x256x128_atomic,0.0%,0,0,0,0\n")
    print("[moe] CSV appended: shapes 6+7 FlyDSL t16x256x128", file=sys.stderr)
except Exception as e:
    print(f"[moe] CSV append failed: {e}", file=sys.stderr)

# Pre-compile FlyDSL stage2 MLIR for both shapes
try:
    from aiter.ops.flydsl.moe_kernels import _get_compiled_stage2
    _get_compiled_stage2(
        model_dim=7168, inter_dim=512, experts=33, topk=9,
        tile_m=16, tile_n=256, tile_k=128,
        doweight=False, a_dtype="fp4", b_dtype="fp4", out_dtype="bf16",
        accumulate=True,
    )
    _get_compiled_stage2(
        model_dim=7168, inter_dim=2048, experts=33, topk=9,
        tile_m=16, tile_n=256, tile_k=128,
        doweight=False, a_dtype="fp4", b_dtype="fp4", out_dtype="bf16",
        accumulate=True,
    )
    print("[moe] FlyDSL t16x256x128 MLIR pre-compiled for shapes 6,7", file=sys.stderr)
except Exception as e:
    print(f"[moe] FlyDSL t16 MLIR pre-compile failed: {e}", file=sys.stderr)

# GPU binary warmup: trigger @flyc.jit for t16x256x128 (shape 7, largest)
try:
    from aiter.ops.flydsl.moe_kernels import flydsl_moe_stage2
    _dev = "cuda"
    _E = 33
    _model_dim = 7168
    _inter_dim = 2048
    _inter_dim_packed = 1024
    _tile_m = 16
    _topk = 9

    _dummy_inter = torch.zeros((_tile_m, _topk, _inter_dim_packed), dtype=torch.uint8, device=_dev)
    _dummy_w2 = torch.zeros((_E, _model_dim, _inter_dim_packed), dtype=torch.uint8, device=_dev)
    _dummy_w2_scale = torch.ones((_E, _model_dim, _inter_dim // 32), dtype=torch.uint8, device=_dev)
    _dummy_a2_scale = torch.ones((_tile_m * _topk, _inter_dim // 32), dtype=torch.uint8, device=_dev)
    _dummy_sorted_ids = torch.arange(_tile_m, dtype=torch.int32, device=_dev)
    _dummy_expert_ids = torch.zeros(1, dtype=torch.int32, device=_dev)
    _dummy_num_valid = torch.tensor([_tile_m] + [0] * (_E - 1), dtype=torch.int32, device=_dev)

    flydsl_moe_stage2(
        _dummy_inter, _dummy_w2,
        _dummy_sorted_ids, _dummy_expert_ids, _dummy_num_valid,
        topk=_topk, tile_m=_tile_m, tile_n=256, tile_k=128,
        a_dtype="fp4", b_dtype="fp4", out_dtype="bf16", mode="atomic",
        w2_scale=_dummy_w2_scale, a2_scale=_dummy_a2_scale,
    )

    del _dummy_inter, _dummy_w2, _dummy_w2_scale, _dummy_a2_scale
    del _dummy_sorted_ids, _dummy_expert_ids, _dummy_num_valid
    torch.cuda.empty_cache()
    print("[moe] FlyDSL t16x256x128 GPU warmup complete", file=sys.stderr)
except Exception as e:
    print(f"[moe] FlyDSL t16 warmup failed: {e}", file=sys.stderr)

_PAD_CACHE = {}


def custom_kernel(data: input_t) -> output_t:
    (
        hidden_states, gate_up_weight, down_weight,
        gate_up_weight_scale, down_weight_scale,
        gate_up_weight_shuffled, down_weight_shuffled,
        gate_up_weight_scale_shuffled, down_weight_scale_shuffled,
        topk_weights, topk_ids, config,
    ) = data

    M = topk_ids.shape[0]

    cfg_id = id(config)
    cached = _PAD_CACHE.get(cfg_id)
    if cached is not None:
        hidden_pad, intermediate_pad = cached
    else:
        hidden_pad = config["d_hidden_pad"] - config["d_hidden"]
        intermediate_pad = config["d_expert_pad"] - config["d_expert"]
        _PAD_CACHE[cfg_id] = (hidden_pad, intermediate_pad)

    if M <= 128:
        os.environ["AITER_KSPLIT"] = "2"
        os.environ["AITER_BYPASS_TUNE_CONFIG"] = "1"
    else:
        os.environ["AITER_KSPLIT"] = "0"
        os.environ["AITER_BYPASS_TUNE_CONFIG"] = "0"

    return fused_moe(
        hidden_states, gate_up_weight_shuffled, down_weight_shuffled,
        topk_weights, topk_ids,
        activation=ActivationType.Silu, quant_type=QuantType.per_1x32,
        w1_scale=gate_up_weight_scale_shuffled,
        w2_scale=down_weight_scale_shuffled,
        hidden_pad=hidden_pad, intermediate_pad=intermediate_pad,
    )
scrolls · 134 lines total

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

Changes from previous submission

Against this author's previous submission submission 643826.

⋯ 5 unchanged lines
import torch
from task import input_t, output_t
- # Import WITHOUT setting AITER_CONFIG_FMOE — let aiter use its defaults
+ # System-level env vars (set before any aiter imports trigger caching)
+ os.environ["HIP_FORCE_DEV_KERNARG"] = "1"
+ os.environ["AITER_USE_NT"] = "1"
+
from aiter import ActivationType, QuantType
from aiter.fused_moe import fused_moe
import aiter.fused_moe as _fm
- # Append shape 6 tuned entry (expert=33 not in DSV3 CSV)
+ # Register t16x256x128_atomic in _KERNEL_PARAMS (not in default stage2 tile_ms)
+ try:
+ from aiter.ops.flydsl.moe_kernels import _KERNEL_PARAMS
+ _t16_name = "flydsl_moe2_afp4_wfp4_bf16_t16x256x128_atomic"
+ if _t16_name not in _KERNEL_PARAMS:
+ _KERNEL_PARAMS[_t16_name] = {
+ "stage": 2, "a_dtype": "fp4", "b_dtype": "fp4", "out_dtype": "bf16",
+ "tile_m": 16, "tile_n": 256, "tile_k": 128,
+ "mode": "atomic", "MPerBlock": 16,
+ }
+ print(f"[moe] Registered {_t16_name} in _KERNEL_PARAMS", file=sys.stderr)
+ except Exception as e:
+ print(f"[moe] _KERNEL_PARAMS registration failed: {e}", file=sys.stderr)
+
+ # CSV injection: shapes 6+7 with FlyDSL t16x256x128 stage2
_tune_file = _fm.AITER_CONFIGS.AITER_CONFIG_FMOE_FILE
try:
with open(_tune_file, "a") as f:
- # Shape 6: 32exp, M=512, inter=512, block_m=32 — both kernels 0.0% error
- f.write("256,512,7168,512,33,9,ActivationType.Silu,torch.bfloat16,torch.float4_e2m1fn_x2,torch.float4_e2m1fn_x2,QuantType.per_1x32,1,0,32,0,0,moe_ck2stages_gemm1_256x32x128x128_1x4_MulABScaleShuffled_v3_Nswizzle0_Quant3_MulRoutedWeight0_silu_FP4X2_FP4X2_B16,0.0%,0,moe_ck2stages_gemm2_64x32x32x128_1x1_MulABScaleExpertWeightShuffled_v1_Nswizzle0_Quant3_MulRoutedWeight1_FP4X2_FP4X2_B16,0.0%,0,0,0,0\n")
- print(f"[moe] Appended shape 6 entry to {_tune_file}", file=sys.stderr)
+ # Shape 6: E=33, inter=512, block_m=32 CK stage1, FlyDSL t16 stage2
+ f.write("256,512,7168,512,33,9,ActivationType.Silu,torch.bfloat16,torch.float4_e2m1fn_x2,torch.float4_e2m1fn_x2,QuantType.per_1x32,1,0,32,0,0,moe_ck2stages_gemm1_256x32x128x128_1x4_MulABScaleShuffled_v3_Nswizzle0_Quant3_MulRoutedWeight0_silu_FP4X2_FP4X2_B16,0.0%,0,flydsl_moe2_afp4_wfp4_bf16_t16x256x128_atomic,0.0%,0,0,0,0\n")
+ # Shape 7: E=33, inter=2048, block_m=64 CK stage1, FlyDSL t16 stage2
+ f.write("256,512,7168,2048,33,9,ActivationType.Silu,torch.bfloat16,torch.float4_e2m1fn_x2,torch.float4_e2m1fn_x2,QuantType.per_1x32,1,0,64,0,0,moe_ck2stages_gemm1_256x64x128x128_1x4_MulABScaleShuffled_v3_Nswizzle0_Quant3_MulRoutedWeight0_silu_FP4X2_FP4X2_B16,0.0%,0,flydsl_moe2_afp4_wfp4_bf16_t16x256x128_atomic,0.0%,0,0,0,0\n")
+ print("[moe] CSV appended: shapes 6+7 FlyDSL t16x256x128", file=sys.stderr)
except Exception as e:
- print(f"[moe] Failed: {e}", file=sys.stderr)
+ print(f"[moe] CSV append failed: {e}", file=sys.stderr)
+ # Pre-compile FlyDSL stage2 MLIR for both shapes
+ try:
+ from aiter.ops.flydsl.moe_kernels import _get_compiled_stage2
+ _get_compiled_stage2(
+ model_dim=7168, inter_dim=512, experts=33, topk=9,
+ tile_m=16, tile_n=256, tile_k=128,
+ doweight=False, a_dtype="fp4", b_dtype="fp4", out_dtype="bf16",
+ accumulate=True,
+ )
+ _get_compiled_stage2(
+ model_dim=7168, inter_dim=2048, experts=33, topk=9,
+ tile_m=16, tile_n=256, tile_k=128,
+ doweight=False, a_dtype="fp4", b_dtype="fp4", out_dtype="bf16",
+ accumulate=True,
+ )
+ print("[moe] FlyDSL t16x256x128 MLIR pre-compiled for shapes 6,7", file=sys.stderr)
+ except Exception as e:
+ print(f"[moe] FlyDSL t16 MLIR pre-compile failed: {e}", file=sys.stderr)
+
+ # GPU binary warmup: trigger @flyc.jit for t16x256x128 (shape 7, largest)
+ try:
+ from aiter.ops.flydsl.moe_kernels import flydsl_moe_stage2
+ _dev = "cuda"
+ _E = 33
+ _model_dim = 7168
+ _inter_dim = 2048
+ _inter_dim_packed = 1024
+ _tile_m = 16
+ _topk = 9
+
+ _dummy_inter = torch.zeros((_tile_m, _topk, _inter_dim_packed), dtype=torch.uint8, device=_dev)
+ _dummy_w2 = torch.zeros((_E, _model_dim, _inter_dim_packed), dtype=torch.uint8, device=_dev)
+ _dummy_w2_scale = torch.ones((_E, _model_dim, _inter_dim // 32), dtype=torch.uint8, device=_dev)
+ _dummy_a2_scale = torch.ones((_tile_m * _topk, _inter_dim // 32), dtype=torch.uint8, device=_dev)
+ _dummy_sorted_ids = torch.arange(_tile_m, dtype=torch.int32, device=_dev)
+ _dummy_expert_ids = torch.zeros(1, dtype=torch.int32, device=_dev)
+ _dummy_num_valid = torch.tensor([_tile_m] + [0] * (_E - 1), dtype=torch.int32, device=_dev)
+
+ flydsl_moe_stage2(
+ _dummy_inter, _dummy_w2,
+ _dummy_sorted_ids, _dummy_expert_ids, _dummy_num_valid,
+ topk=_topk, tile_m=_tile_m, tile_n=256, tile_k=128,
+ a_dtype="fp4", b_dtype="fp4", out_dtype="bf16", mode="atomic",
+ w2_scale=_dummy_w2_scale, a2_scale=_dummy_a2_scale,
+ )
+
+ del _dummy_inter, _dummy_w2, _dummy_w2_scale, _dummy_a2_scale
+ del _dummy_sorted_ids, _dummy_expert_ids, _dummy_num_valid
+ torch.cuda.empty_cache()
+ print("[moe] FlyDSL t16x256x128 GPU warmup complete", file=sys.stderr)
+ except Exception as e:
+ print(f"[moe] FlyDSL t16 warmup failed: {e}", file=sys.stderr)
+
_PAD_CACHE = {}
def custom_kernel(data: input_t) -> output_t:
(
- hidden_states,
- gate_up_weight,
- down_weight,
- gate_up_weight_scale,
- down_weight_scale,
- gate_up_weight_shuffled,
- down_weight_shuffled,
- gate_up_weight_scale_shuffled,
- down_weight_scale_shuffled,
- topk_weights,
- topk_ids,
- config,
+ hidden_states, gate_up_weight, down_weight,
+ gate_up_weight_scale, down_weight_scale,
+ gate_up_weight_shuffled, down_weight_shuffled,
+ gate_up_weight_scale_shuffled, down_weight_scale_shuffled,
+ topk_weights, topk_ids, config,
) = data
M = topk_ids.shape[0]
scrolls · 122 diff lines total

Best evidence level for this revision: reported

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