Run 01a02032 · KernelIndex

Primary measurement

8.21µsmean

Rank 7 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

144.96× reference

Identity

implementationgpt-5_cuda_1ad912

projectgpt-5-2025-08-07

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 2528 · bf16

comparison keysha256:c1d2e08636a3f515…

sourceFlashInfer-Bench

external idtrace/gpt-5_cuda_1ad912/1e5d6f59-edbc-4d45-8edf-5599001cc270

sha256:7820bb7654afbd1bc8c2879…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.015625

max relative error0.007042253389954567

resultpassed

Workload

batch_size2528

weightbf16 [128]

hidden_statesbf16 [2528, 128]

definition comparatorsol_execbench_eval

Measurements

latency · mean8.21 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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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 8210
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-16T12:11:03.567Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.015625,
        "maximumRelativeError": 0.007042253389954567
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.00821002115803513,
          "speedup_factor": 144.95661412634257,
          "reference_latency_ms": 1.1900968689744065
        },
        "benchmark": "rmsnorm_h128"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:55aece79c60a550a689bd1e8e6af4cf03ef0ec6ab9fcd18587d6e21fdf8487b9",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:52ddfa19472f47bb9f52314df0d13e707ea930a589cc0ce2ca3f23593e3ed53e"
    },
    "metadata": {
      "name": "sol-trace-rmsnorm-h128-1e5d6f59",
      "title": "gpt-5_cuda_1ad912 · rmsnorm_h128"
    },
    "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 RMSNorm h128 →JSON

gpt-5 / cuda1ad912