deepgemm_m_grouped_fp8_fp4_contiguous_g4_n2048_k2048
Grouped GEMM FP8 fp4 m contiguous g4 n2048 k2048 · m = 960 · fp32/fp8_e4m3 · run 01a00b1d-1040…
●passedReported evidence
Primary measurement
19.9µsmean
Rank 1 in its comparison group · source-native comparison · observed 2026-06-06
80.67× reference
Identity
implementationdeepgemm_m_grouped_fp8_fp4_contiguous_g4_n2048_k2048
projectFlashInfer-Bench baselines
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadm = 960 · fp32/fp8_e4m3
comparison keysha256:bec5ce91dbc37fdc…
sourceFlashInfer-Bench
external idtrace/deepgemm_m_grouped_fp8_fp4_contiguous_g4_n2048_k2048/f4ac51b8-5eb6-4758-8189-25efda2b4b74
sha256:cd450c37bedbe25a08f5008…
Correctness
comparatorflashinfer_bench_eval
max absolute error0.5
max relative error0.00657894741743803
resultpassed
Workload
m960
a_fp8fp8_e4m3 [960, 2048]
b_fp4int8 [4, 2048, 1024]
a_scalefp32 [960, 16]
b_scalefp32 [4, 2048, 64]
m_indicesint32 [960]
definition comparatorsol_execbench_eval
Measurements
latency · mean19.9 µs
Protocol
harnessflashinfer-bench
timerharness_reported
primaryStatisticmean
correctnessReferencedefinition reference implementation
comparabilityFamilyflashinfer_bench_trace
Environment
gpuNVIDIA B200 (unknown)
cudaToolkit13.0
frameworkpytorch 2.11.0+cu130
Artifacts
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Replications and notes
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Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.
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{
"run": {
"kind": "BenchmarkRun",
"spec": {
"status": "passed",
"timing": {
"latencyNs": {
"mean": 19936
},
"primaryStatistic": "mean"
},
"observedAt": "2026-06-06T21:16:44.793Z",
"correctness": {
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"maximumAbsoluteError": 0.5,
"maximumRelativeError": 0.00657894741743803
},
"sourceNative": {
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"metrics": {
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"speedup_factor": 80.66522873194222,
"reference_latency_ms": 1.608142
},
"benchmark": "grouped_gemm_fp8_fp4_m_contiguous_g4_n2048_k2048"
},
"protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
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},
"metadata": {
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"title": "deepgemm_m_grouped_fp8_fp4_contiguous_g4_n2048_k2048 · grouped_gemm_fp8_fp4_m_contiguous_g4_n2048_k2048"
},
"apiVersion": "kernelindex.dev/v1alpha1"
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"protocol": {
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},
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"title": "NVIDIA B200 (trace-reported software)"
},
"apiVersion": "kernelindex.dev/v1alpha1"
}
}Cite this record (permalink, digest, access date)
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Published 2026-08-16 · FlashInfer-Bench · Apache-2.0All results for Grouped GEMM FP8 fp4 m contiguous g4 n2048 k2048 →JSON