Run 01a02032 · KernelIndex

Primary measurement

364.1µsmean

Rank 6 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

0.46× reference

Identity

implementationgpt-5-2025-08-07_cuda_d50c9b

projectgpt-5-2025-08-07

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadm = 6 · fp16

comparison keysha256:5f5664dee1f7f838…

sourceFlashInfer-Bench

external idtrace/gpt-5-2025-08-07_cuda_d50c9b/bcc2cc41b7464e54b0c4d11e65da96d8

sha256:9d5ca9c93c2a8fce19a1e60…

Correctness

comparatorflashinfer_bench_eval

max absolute error0

max relative error0

resultpassed

Workload

afp16 [6, 4096]

bfp16 [2048, 4096]

definition comparatorsol_execbench_eval

Measurements

latency · mean364.1 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit12.8

frameworkpytorch 2.8.0+cu128

Artifacts

logssha256:14aba2e92c12eca8… · text/plain · unavailable

Replications and notes

No attestations yet.

Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 364103
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:14aba2e92c12eca886c696ab4f98e5fe5a748d1a00543e6c77d73dec6f319b8d",
          "digest": "sha256:14aba2e92c12eca886c696ab4f98e5fe5a748d1a00543e6c77d73dec6f319b8d"
        }
      },
      "observedAt": "2025-10-16T01:13:09.925Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0,
        "maximumRelativeError": 0
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.3641026730769914,
          "speedup_factor": 0.4646998262743734,
          "reference_latency_ms": 0.16919844892491287
        },
        "benchmark": "gemm_n2048_k4096"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:8cffe3863e68e970126d315790d7df4abf9bd541648d979f69a656133397e077",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:f46a0d67f6cbb5c9c2979688644ad43a719ca2f9ab953bb917010a37f11ba5f9"
    },
    "metadata": {
      "name": "sol-trace-gemm-n2048-k4096-bcc2cc41",
      "title": "gpt-5-2025-08-07_cuda_d50c9b · gemm_n2048_k4096"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "flashinfer-bench",
        "repository": "https://github.com/flashinfer-ai/flashinfer-bench"
      },
      "correctness": {
        "reference": "definition reference implementation",
        "comparator": "flashinfer_bench_eval"
      },
      "measurement": {
        "timer": "harness_reported",
        "primaryStatistic": "mean"
      },
      "comparability": {
        "family": "flashinfer_bench_trace"
      }
    },
    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA B200",
        "architecture": "unknown"
      },
      "software": {
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        },
        "libraries": {
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        },
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      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-8-0-cu128-3-4-0-12-8",
      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

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Published 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for GEMM n2048 k4096 →JSON

gpt-5-2025-08-07 / cudad50c9b