Transformers
GroupNorm · batch = 128 · hidden = 512 · channels = 1024 · channels_per_group = 4 · fp32 · run 01a0202b-234f…
●passedReported evidence
Not re-observed recently.
Primary measurement
1.18msmedian
Rank 2 in its comparison group · source-native comparison · observed 2026-02-28
ms 20 1.1766079664230347 · ms 50 1.177664041519165 · ms 80 1.1796480417251587
Identity
implementationTransformers
projectHugging Face Transformers
revisionunknown
workloadbatch = 128 · hidden = 512 · channels = 1024 · channels_per_group = 4 · fp32
comparison keysha256:5de38b894f2b16e1…
sourceLiger-Kernel benchmarks
external idgroup_norm/full/huggingface/nvidia-b200/batch128-channels1024-channels_per_group4-hidden512-fp32/2026-02-28-00-23-26
sha256:0ac8d9e75fa98768341bf93…
Correctness
Marked passed by the source; the correctness policy was not published.
Workload
batch128
hidden512
channels1024
channels_per_group4
xfp32 [128, 1024, 512]
biasfp32 [1024]
weightfp32 [1024]
definition comparatornot_asserted
Measurements
latency · median1.18 ms
latency · p201.18 ms
latency · p801.18 ms
Protocol
harnessLiger-Kernel benchmark scripts
timercuda_events
primaryStatisticmedian
comparabilityFamilyliger_kernel_bench
Environment
gpuNVIDIA B200 (sm_100)
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
Canonical manifest
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{
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"timing": {
"latencyNs": {
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"observedAt": "2026-02-28T00:23:26.000Z",
"measurements": [
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"metric": "latency",
"statistic": "p20"
},
{
"unit": "ns",
"value": 1179648,
"metric": "latency",
"statistic": "p80"
}
],
"sourceNative": {
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"metrics": {
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},
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"metadata": {
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"title": "GroupNorm · huggingface · full",
"labels": {
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}
},
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"protocol": {
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},
"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.",
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"metadata": {
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"title": "Liger benchmark host · B200"
},
"apiVersion": "kernelindex.dev/v1alpha1"
}
}Cite this record (permalink, digest, access date)
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Published 2026-08-20 · Liger-Kernel benchmarks · BSD-2-ClauseAll results for GroupNorm →JSON