Run 01a02032 · KernelIndex

Primary measurement

148.3µsmean

Rank 4 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

1.11× reference

Identity

implementationgpt-5-2025-08-07_triton_9b01eb

projectgpt-5-2025-08-07

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadm = 16 · fp16

comparison keysha256:1674d61a978c2aa3…

sourceFlashInfer-Bench

external idtrace/gpt-5-2025-08-07_triton_9b01eb/b99854266fd7401a9f296cdf99e56e6c

sha256:b500d355cf973ca48b5a728…

Correctness

comparatorflashinfer_bench_eval

max absolute error0

max relative error0

resultpassed

Workload

m16

afp16 [16, 4096]

bfp16 [2048, 4096]

definition comparatorsol_execbench_eval

Measurements

latency · mean148.3 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

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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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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 148321
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-16T01:13:43.463Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0,
        "maximumRelativeError": 0
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.14832072532186832,
          "speedup_factor": 1.1131841656818635,
          "reference_latency_ms": 0.16510828287075283
        },
        "benchmark": "gemm_n2048_k4096"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:3b918ac0a8b2a41b971df07685096571a9d9f11b183541606abba43b8ca89a14",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:e233d827702d82b001ae4ce0cc006a334d047bf2a3a6bcedd79b168eb75cdc6c"
    },
    "metadata": {
      "name": "sol-trace-gemm-n2048-k4096-b9985426",
      "title": "gpt-5-2025-08-07_triton_9b01eb · 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": {
        "framework": {
          "name": "pytorch",
          "version": "2.8.0+cu128"
        },
        "libraries": {
          "triton": "3.4.0"
        },
        "cudaToolkit": "12.8"
      }
    },
    "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 / triton9b01eb