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gpt-o3 / cudaec73ea

GQA paged decode h32 kv8 d128 ps1 · num_pages = 59 · batch_size = 1 · len_indptr = 2 · num_kv_indices = 42 · bf16 · run 01a02032-5c64…
●passedReported evidence

Not re-observed recently.

Primary measurement
75.3µsmean

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

Compare with #1 →

418.14× reference

Identity
implementationgpt-o3_cuda_ec73ea
projectgpt-o3
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadnum_pages = 59 · batch_size = 1 · len_indptr = 2 · num_kv_indices = 42 · bf16
comparison keysha256:3d70f463edd70e95…
sourceFlashInfer-Bench
external idtrace/gpt-o3_cuda_ec73ea/1ae14253-ba9f-4c01-ba80-d7684c79503e
sha256:1cf23254bcc23e0ab47512c…

Correctness

comparatorflashinfer_bench_eval
max absolute error9.5367431640625e-7
max relative error1.5960446830831643e-7
resultpassed

Workload

num_pages59
batch_size1
len_indptr2
num_kv_indices42
qbf16 [1, 32, 128]
k_cachebf16 [59, 1, 8, 128]
v_cachebf16 [59, 1, 8, 128]
kv_indptrint32 [2]
kv_indicesint32 [42]
definition comparatorsol_execbench_eval

Measurements

latency · mean75.3 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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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 75340
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-16T01:53:00.642Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 9.5367431640625e-7,
        "maximumRelativeError": 1.5960446830831643e-7
      },
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        "metrics": {
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          "speedup_factor": 418.143064279013,
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        "benchmark": "gqa_paged_decode_h32_kv8_d128_ps1"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
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      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:1a13ffe2effa79f45f8c9165c704c1a151f5b11588882aab6981664f33eda6a9"
    },
    "metadata": {
      "name": "sol-trace-gqa-paged-decode-h32-kv8-d128-ps1-1ae14253",
      "title": "gpt-o3_cuda_ec73ea · gqa_paged_decode_h32_kv8_d128_ps1"
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    "apiVersion": "kernelindex.dev/v1alpha1"
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  "protocol": {
    "kind": "BenchmarkProtocol",
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      "comparability": {
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    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
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  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
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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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