---
id: pr-vllm-22399
repo: vllm-project/vllm
pr: 22399
title: '[Bug] Fix B200 DeepGEMM E8M0 Accuracy Issue'
author: yewentao256
date: '2025-08-07'
url: https://github.com/vllm-project/vllm/pull/22399
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- gemm
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- gemm
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: eec890c1c1cdf6d4bbf4c0563fac54abe80ab8b6
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/utils/fp8_utils.py
head_ref_oid: 4d26515ea48a8ea4eda88701f71973d305e357f0
artifact_dir: evidence/pull-bundles/vllm/gh-22399
---
# [Bug] Fix B200 DeepGEMM E8M0 Accuracy Issue

- Repository: `vllm-project/vllm`
- PR: [22399](https://github.com/vllm-project/vllm/pull/22399)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/quantization/utils/fp8_utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-22399`
