mm_fp4_mxfp4_flashinfer_n5120_k2048
FlashInfer-Bench baselines · python · Apache-2.0
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main.py
curl "https://kernelindex.com/api/v1/implementations/flashinfer-mm-fp4-mxfp4-flashinfer-n5120-k2048?include=source"interfacepython
revisionda915083d4c7
symbolrun
pathmain.py
Compatibility
measured onNVIDIA B200
declared hardwareNVIDIA B200
architecturessm_100
dtypesbf16
Benchmark evidence
6 measurements across 1 GPU, fastest first.
Operation / workload
Hardware
Latency
Rank
Observed
Reported · How evidence levels are derived →
Source and license
sourcehttps://huggingface.co/datasets/flashinfer-ai/flashinfer-trace
commitda915083d4c7c5e61aa3005e3d17ae488e0fc71c
revision digestsha256:8a34dc2f48e93e550ab2eaad5fe5b205b14300bbb53562d54b0cbd459dcf1ee7
license declaredApache-2.0
license concludedApache-2.0
authorsbaseline
imported2026-08-16
Kernel source
main.py14 lines
import torch
import flashinfer
def run(A, B):
a_fp4, a_sf = flashinfer.mxfp4_quantize(A)
b_fp4, b_sf = flashinfer.mxfp4_quantize(B)
out = torch.empty(A.shape[0], B.shape[0], device=A.device, dtype=torch.bfloat16)
flashinfer.mm_fp4(
a_fp4, b_fp4.T, a_sf, b_sf.T, None, torch.bfloat16, out,
block_size=32, use_8x4_sf_layout=False, backend="auto", use_nvfp4=False,
)
return out
Source code from FlashInfer-Bench (flashinfer-ai/flashinfer-trace) · Apache-2.0
Best evidence level for this revision: reported
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