Transformers
GroupNorm · batch = 128 · hidden = 512 · channels = 32 · channels_per_group = 4 · fp32 · run 01a0202b-234c…
●passedReported evidence
Not re-observed recently.
Primary measurement
30.7µsmedian
Rank 2 in its comparison group · source-native comparison · observed 2026-02-28
ms 20 0.030592000111937523 · ms 50 0.030688000842928886 · ms 80 0.030751999467611313
Identity
implementationTransformers
projectHugging Face Transformers
revisionunknown
workloadbatch = 128 · hidden = 512 · channels = 32 · channels_per_group = 4 · fp32
comparison keysha256:5d5a0ac0d3a7e337…
sourceLiger-Kernel benchmarks
external idgroup_norm/forward/huggingface/nvidia-b200/batch128-channels32-channels_per_group4-hidden512-fp32/2026-02-28-00-23-19
sha256:2fbb8ad9770cffbb1d0afd4…
Correctness
Marked passed by the source; the correctness policy was not published.
Workload
batch128
hidden512
channels32
channels_per_group4
xfp32 [128, 32, 512]
biasfp32 [32]
weightfp32 [32]
definition comparatornot_asserted
Measurements
latency · median30.7 µs
latency · p2030.6 µs
latency · p8030.8 µs
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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{
"run": {
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"spec": {
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"timing": {
"latencyNs": {
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},
"primaryStatistic": "median"
},
"observedAt": "2026-02-28T00:23:19.000Z",
"measurements": [
{
"unit": "ns",
"value": 30592,
"metric": "latency",
"statistic": "p20"
},
{
"unit": "ns",
"value": 30752,
"metric": "latency",
"statistic": "p80"
}
],
"sourceNative": {
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"metrics": {
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"ms_50": 0.030688000842928886,
"ms_80": 0.030751999467611313
},
"benchmark": "group_norm/forward",
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},
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"environmentDigest": "sha256:ad459e643ef802f7008f1fa8915785c905d05abbfdb5eb0328be214f8d9f3a8b",
"implementationDigest": "sha256:e8c7d555b6002524eb04f3e8a91c03603172925143b51877f4050be074e9e025"
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"metadata": {
"name": "liger-group-norm-forward-huggingface-nvidia-b200-batch128-channels32-channels-per-group4-hidden512-f",
"title": "GroupNorm · huggingface · forward",
"labels": {
"liger_version": "0.7.0"
}
},
"apiVersion": "kernelindex.dev/v1alpha1"
},
"protocol": {
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"spec": {
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},
"measurement": {
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},
"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"
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},
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"metadata": {
"name": "liger-bench-nvidia-b200",
"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