Skip to content
KernelIndex
Search⌘K

PyTorch

SwiGLU activation, Megatron layout · ffn = 1024 · seq = 2048 · batch = 4 · bf16 · run 01a0202b-241d…
●passedReported evidence
Primary measurement
178.0µsmedian

Rank 4 in its comparison group · source-native comparison · observed 2026-07-26

Compare with #1 →

ms 20 0.17710720300674437 · ms 50 0.1780479997396469 · ms 80 0.18151679933071138

Identity
implementationPyTorch
projectPyTorch
revisionunknown
workloadffn = 1024 · seq = 2048 · batch = 4 · bf16
comparison keysha256:c42af396cf4b6512…
sourceLiger-Kernel benchmarks
external idmegatron_swiglu/full/megatron/nvidia-h100-80gb-hbm3/batch4-ffn1024-seq2048-bf16/2026-07-26-00-09-58
sha256:93a33b51320c717748e7aed…

Correctness

Marked passed by the source; the correctness policy was not published.

Workload

ffn1024
seq2048
batch4
ybf16 [2048, 4, 2048]
definition comparatornot_asserted

Measurements

latency · median178.0 µs
latency · p20177.1 µs
latency · p80181.5 µs

Protocol

harnessLiger-Kernel benchmark scripts
timercuda_events
primaryStatisticmedian
comparabilityFamilyliger_kernel_bench

Environment

gpuNVIDIA H100 (sm_90)

Artifacts

No artifacts published with this run.

Replications and notes

No attestations yet.

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

Add a reproduction or note
I

Published under your account name. Community attestations never change the evidence level; a maintainer can hide abuse.

Canonical manifest

Show manifest
{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "median": 178048
        },
        "primaryStatistic": "median"
      },
      "observedAt": "2026-07-26T00:09:58.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 177107,
          "metric": "latency",
          "statistic": "p20"
        },
        {
          "unit": "ns",
          "value": 181517,
          "metric": "latency",
          "statistic": "p80"
        }
      ],
      "sourceNative": {
        "source": "liger-kernel-bench",
        "metrics": {
          "ms_20": 0.17710720300674437,
          "ms_50": 0.1780479997396469,
          "ms_80": 0.18151679933071138
        },
        "benchmark": "megatron_swiglu/full",
        "externalId": "megatron_swiglu/full/megatron/nvidia-h100-80gb-hbm3/batch4-ffn1024-seq2048-bf16/2026-07-26-00-09-58"
      },
      "protocolDigest": "sha256:5b02ee9a2140fbc6fcc1c89800f6c177ba22718c8897cb532bf0ba91867c1e58",
      "workloadDigest": "sha256:02cf058a75da69d6dbc7374db720e332e5a14ddf2c61b6a475f45e48cd10d360",
      "environmentDigest": "sha256:2750ae381d6de582f1eb6b9008e0987463d19ede8af127d97d76c5ae09121393",
      "implementationDigest": "sha256:ebdec3855511a3b6ae7df50fa27a70da8c06b0eb5d8026a2fe27779438c068bb"
    },
    "metadata": {
      "name": "liger-megatron-swiglu-full-megatron-nvidia-h100-80gb-hbm3-batch4-ffn1024-seq2048-bf16-2026-07-26-00-",
      "title": "SwiGLU activation, Megatron layout · megatron · full",
      "labels": {
        "liger_version": "0.8.1"
      }
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "Liger-Kernel benchmark scripts",
        "repository": "https://github.com/linkedin/Liger-Kernel"
      },
      "measurement": {
        "timer": "cuda_events",
        "primaryStatistic": "median"
      },
      "comparability": {
        "notes": "Timed: the forward pass plus the backward pass, via triton.testing.do_bench with quantiles 0.5/0.2/0.8 (median with p20/p80 spread). The upstream CSV records no CUDA, driver, or torch version; the Liger release rides each run's labels. Comparable only within one kernel, workload, timed pass, and GPU.",
        "family": "liger_kernel_bench"
      }
    },
    "metadata": {
      "name": "liger-bench-do-bench-full",
      "title": "Liger benchmark harness · full pass"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA H100",
        "formFactor": "80GB HBM3",
        "architecture": "sm_90"
      },
      "software": {}
    },
    "metadata": {
      "name": "liger-bench-nvidia-h100-80gb-hbm3",
      "title": "Liger benchmark host · H100 80GB HBM3"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}
Cite this record (permalink, digest, access date)
Report an issue with this run

A maintainer reviews every report. If accepted, the record is retracted or superseded; its history stays visible.