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gpt-o3 / cudaa7bbcf

Fused add RMSNorm h4096 · batch_size = 34 · bf16 · run 01a02032-5e4c…
●passedReproduction-ready evidence

Not re-observed recently.

Primary measurement
17.8µsmean

Rank 5 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

67.46× reference

Identity
implementationgpt-o3_cuda_a7bbcf
projectgpt-o3
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadbatch_size = 34 · bf16
comparison keysha256:fe7a9eb74af889f1…
sourceFlashInfer-Bench
external idtrace/gpt-o3_cuda_a7bbcf/04e1c8da-5407-4d96-876c-a27259fe7ecf
sha256:4d1c6401149d947435e68d2…

Correctness

comparatorflashinfer_bench_eval
max absolute error0
max relative error0
resultpassed

Workload

batch_size34
weightbf16 [4096]
residualbf16 [34, 4096]
hidden_statesbf16 [34, 4096]
definition comparatorsol_execbench_eval

Measurements

latency · mean17.8 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

logssha256:5c2bfaa09540be51… · text/plain · unavailable

Replications and notes

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 17805
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:5c2bfaa09540be51d7764c6ece42106b2f8cdda86cd622ffd7a11a6c86776e4a",
          "digest": "sha256:5c2bfaa09540be51d7764c6ece42106b2f8cdda86cd622ffd7a11a6c86776e4a"
        }
      },
      "observedAt": "2025-10-16T12:07:45.283Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0,
        "maximumRelativeError": 0
      },
      "sourceNative": {
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        "metrics": {
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          "speedup_factor": 67.46075746186506,
          "reference_latency_ms": 1.2011459734041157
        },
        "benchmark": "fused_add_rmsnorm_h4096"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:30c05d7aabf935d0cdc8d6917badf3c05d6aac124a811b4b75309799728413ff",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:8c12465bcf5c44347374419198e781a530c519953fc712d53eb48aff302248b8"
    },
    "metadata": {
      "name": "sol-trace-fused-add-rmsnorm-h4096-04e1c8da",
      "title": "gpt-o3_cuda_a7bbcf · fused_add_rmsnorm_h4096"
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      },
      "comparability": {
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      }
    },
    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
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    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
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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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