cublaslt_fp4_e2m1_scaled_mm_n2048_k2048
GEMM fp4 e2m1 n2048 k2048 · m = 256 · int8 · run 01a00b1b-7cfc…
●passedReported evidence
Primary measurement
45.9µsmean
Rank 1 in its comparison group · source-native comparison · observed 2026-06-06
7.87× reference
Identity
implementationcublaslt_fp4_e2m1_scaled_mm_n2048_k2048
projectFlashInfer-Bench baselines
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadm = 256 · int8
comparison keysha256:5fab70789eb314b7…
sourceFlashInfer-Bench
external idtrace/cublaslt_fp4_e2m1_scaled_mm_n2048_k2048/6a7b36a5-03ff-48da-a6ad-99617aa2cb66
sha256:6c37f68beaf098725bc3fca…
Correctness
comparatorflashinfer_bench_eval
max absolute error0
max relative error0
resultpassed
Workload
m256
a_fp4int8 [256, 1024]
b_fp4int8 [2048, 1024]
definition comparatorsol_execbench_eval
Measurements
latency · mean45.9 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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{
"run": {
"kind": "BenchmarkRun",
"spec": {
"status": "passed",
"timing": {
"latencyNs": {
"mean": 45893
},
"primaryStatistic": "mean"
},
"observedAt": "2026-06-06T21:37:57.200Z",
"correctness": {
"comparator": "sol_execbench_eval",
"maximumAbsoluteError": 0,
"maximumRelativeError": 0
},
"sourceNative": {
"source": "flashinfer-bench",
"metrics": {
"latency_ms": 0.045892999999999996,
"speedup_factor": 7.872536842946274,
"reference_latency_ms": 0.36129433333333333
},
"benchmark": "gemm_fp4_e2m1_n2048_k2048"
},
"protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
"workloadDigest": "sha256:4338e5d0a4ffbcb8882aca8314bd1a4fc070cf06168aba993bf7df114c14e53b",
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"implementationDigest": "sha256:7ed6a302f8efd3b2e98d2342e15b2307caec22e80c9540c568fcaee745918386"
},
"metadata": {
"name": "sol-trace-gemm-fp4-e2m1-n2048-k2048-6a7b36a5",
"title": "cublaslt_fp4_e2m1_scaled_mm_n2048_k2048 · gemm_fp4_e2m1_n2048_k2048"
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"apiVersion": "kernelindex.dev/v1alpha1"
},
"protocol": {
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"spec": {
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},
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},
"measurement": {
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"primaryStatistic": "mean"
},
"comparability": {
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}
},
"metadata": {
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"title": "FlashInfer-Bench trace harness"
},
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"environment": {
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"spec": {
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},
"software": {
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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 GEMM fp4 e2m1 n2048 k2048 →JSON