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submission 197871

gau.nernst · python · License unknown

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Vendorable · source mirrored · license unknownView source →

No package. Vendor the mirrored source: 28 lines, June 9 Researcher Reciprocity License v1.0.

submission_ref.py
curl "https://kernelindex.com/api/v1/implementations/kernelbot-nvfp4-dual-gemm-197871?include=source"
interfacepython
Compatibility
measured onNVIDIA B200
declared hardwareNVIDIA B200
architecturessm_100
dtypesfp8_e4m3, nvfp4

Benchmark evidence

1 measurement across 1 GPU, fastest first.

Operation / workload
Hardware
Latency
Rank
Observed
NVFP4 dual GEMMsuite of 4 cases
NVIDIA B200
39.3µs
#280 of 420
2025-12-24

Reported · How evidence levels are derived →

Source and license

sourceavailable
revision digestsha256:a8181137d8e0bf9edb179c1a14e15c5292718dcd4752ca57bf483480dfe6194f
license declaredunknown
license concludedunknown
authorsgau.nernst
imported2026-08-15

Kernel source

submission_ref.py28 lines
#!POPCORN leaderboard nvfp4_dual_gemm
#!POPCORN gpu NVIDIA

import torch
import torch.nn.functional as F
from task import input_t, output_t


def custom_kernel(data: input_t) -> output_t:
    a, b1, b2, _, _, _, sfa, sfb1, sfb2, _ = data

    out1 = torch._scaled_mm(
        a[..., 0],
        b1[..., 0].T,
        sfa.permute(5, 2, 4, 0, 1, 3).view(-1),
        sfb1.permute(5, 2, 4, 0, 1, 3).view(-1),
        out_dtype=torch.float32,
    )
    out2 = torch._scaled_mm(
        a[..., 0],
        b2[..., 0].T,
        sfa.permute(5, 2, 4, 0, 1, 3).view(-1),
        sfb2.permute(5, 2, 4, 0, 1, 3).view(-1),
        out_dtype=torch.float32,
    )
    out = F.silu(out1) * out2
    return out.half().unsqueeze(-1)

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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