Skip to content
KernelIndex
Search⌘K

PyTorch

SwiGLU activation, Megatron layout · ffn = 2048 · seq = 2048 · batch = 4 · bf16 · run 01a0202b-2419…
●passedReported evidence
Primary measurement
105.3µsmedian

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

Compare with #1 →

ms 20 0.10502400249242783 · ms 50 0.10529599711298943 · ms 80 0.10695680230855942

Identity
implementationPyTorch
projectPyTorch
revisionunknown
workloadffn = 2048 · seq = 2048 · batch = 4 · bf16
comparison keysha256:1c2cbbbdc428cbb6…
sourceLiger-Kernel benchmarks
external idmegatron_swiglu/forward/torch/nvidia-h100-80gb-hbm3/batch4-ffn2048-seq2048-bf16/2026-07-26-00-09-45
sha256:3fde3ecbc80bdcf5e99b7e7…

Correctness

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

Workload

ffn2048
seq2048
batch4
ybf16 [2048, 4, 4096]
definition comparatornot_asserted

Measurements

latency · median105.3 µs
latency · p20105.0 µs
latency · p80107.0 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": 105296
        },
        "primaryStatistic": "median"
      },
      "observedAt": "2026-07-26T00:09:45.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 105024,
          "metric": "latency",
          "statistic": "p20"
        },
        {
          "unit": "ns",
          "value": 106957,
          "metric": "latency",
          "statistic": "p80"
        }
      ],
      "sourceNative": {
        "source": "liger-kernel-bench",
        "metrics": {
          "ms_20": 0.10502400249242783,
          "ms_50": 0.10529599711298943,
          "ms_80": 0.10695680230855942
        },
        "benchmark": "megatron_swiglu/forward",
        "externalId": "megatron_swiglu/forward/torch/nvidia-h100-80gb-hbm3/batch4-ffn2048-seq2048-bf16/2026-07-26-00-09-45"
      },
      "protocolDigest": "sha256:a79eaf4df66c97c6adc1fb2d09df78682155d1ea86652ae0b70199875bde7747",
      "workloadDigest": "sha256:78416bbe7296f4152e6c538329fe3ea58b22fcac1b86dff94708af60f81152ac",
      "environmentDigest": "sha256:2750ae381d6de582f1eb6b9008e0987463d19ede8af127d97d76c5ae09121393",
      "implementationDigest": "sha256:ebdec3855511a3b6ae7df50fa27a70da8c06b0eb5d8026a2fe27779438c068bb"
    },
    "metadata": {
      "name": "liger-megatron-swiglu-forward-torch-nvidia-h100-80gb-hbm3-batch4-ffn2048-seq2048-bf16-2026-07-26-00-",
      "title": "SwiGLU activation, Megatron layout · torch · forward",
      "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 module forward 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-forward",
      "title": "Liger benchmark harness · forward 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.