Transformers
GroupNorm · batch = 128 · hidden = 512 · channels = 2048 · channels_per_group = 4 · fp32 · run 01a0202b-234f…
●passedReported evidence
Not re-observed recently.
Primary measurement
2.29msmedian
Rank 2 in its comparison group · source-native comparison · observed 2026-02-28
ms 20 2.292736053466797 · ms 50 2.2947518825531006 · ms 80 2.296736001968384
Identity
implementationTransformers
projectHugging Face Transformers
revisionunknown
workloadbatch = 128 · hidden = 512 · channels = 2048 · channels_per_group = 4 · fp32
comparison keysha256:99d35b6ab7cec3c1…
sourceLiger-Kernel benchmarks
external idgroup_norm/full/huggingface/nvidia-b200/batch128-channels2048-channels_per_group4-hidden512-fp32/2026-02-28-00-23-26
sha256:a61a331963bb2686ebca510…
Correctness
Marked passed by the source; the correctness policy was not published.
Workload
batch128
hidden512
channels2048
channels_per_group4
xfp32 [128, 2048, 512]
biasfp32 [2048]
weightfp32 [2048]
definition comparatornot_asserted
Measurements
latency · median2.29 ms
latency · p202.29 ms
latency · p802.30 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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"spec": {
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"timing": {
"latencyNs": {
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},
"primaryStatistic": "median"
},
"observedAt": "2026-02-28T00:23:26.000Z",
"measurements": [
{
"unit": "ns",
"value": 2292736,
"metric": "latency",
"statistic": "p20"
},
{
"unit": "ns",
"value": 2296736,
"metric": "latency",
"statistic": "p80"
}
],
"sourceNative": {
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"metrics": {
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},
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"implementationDigest": "sha256:e8c7d555b6002524eb04f3e8a91c03603172925143b51877f4050be074e9e025"
},
"metadata": {
"name": "liger-group-norm-full-huggingface-nvidia-b200-batch128-channels2048-channels-per-group4-hidden512-fp",
"title": "GroupNorm · huggingface · full",
"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 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"
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"architecture": "sm_100"
},
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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