---
id: pr-vllm-21083
repo: vllm-project/vllm
pr: 21083
title: '[Perf] Cuda Kernel for Per Token Group Quant'
author: yewentao256
date: '2025-07-22'
url: https://github.com/vllm-project/vllm/pull/21083
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 774d0c014b8699d244ba2889d872591ca535b80f
inclusion_reason: kernel file changes
changed_paths:
- CMakeLists.txt
- csrc/ops.h
- csrc/quantization/fp8/per_token_group_quant.cu
- csrc/torch_bindings.cpp
- tests/kernels/quantization/test_per_token_group_quant.py
- vllm/model_executor/layers/quantization/utils/fp8_utils.py
head_ref_oid: 6a5d68aed4407a4bd660cbd9f501c9cfe0fe1754
artifact_dir: evidence/pull-bundles/vllm/gh-21083
---
# [Perf] Cuda Kernel for Per Token Group Quant

- Repository: `vllm-project/vllm`
- PR: [21083](https://github.com/vllm-project/vllm/pull/21083)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `CMakeLists.txt`
- `csrc/ops.h`
- `csrc/quantization/fp8/per_token_group_quant.cu`
- `csrc/torch_bindings.cpp`
- `tests/kernels/quantization/test_per_token_group_quant.py`
- `vllm/model_executor/layers/quantization/utils/fp8_utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-21083`
