---
id: pr-vllm-12587
repo: vllm-project/vllm
pr: 12587
title: '[Kernel][Quantization] Integrate block-quantized CUTLASS kernels for DeepSeekV3'
author: tlrmchlsmth
date: '2025-01-31'
url: https://github.com/vllm-project/vllm/pull/12587
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: eb5741ad422f04d0bac60c9b6c07183e0431ce8c
inclusion_reason: kernel file changes
changed_paths:
- csrc/ops.h
- csrc/quantization/cutlass_w8a8/scaled_mm_c3x.cu
- csrc/quantization/cutlass_w8a8/scaled_mm_entry.cu
- csrc/torch_bindings.cpp
- vllm/_custom_ops.py
- vllm/model_executor/layers/quantization/fp8.py
- vllm/model_executor/layers/quantization/utils/fp8_utils.py
- vllm/model_executor/layers/quantization/utils/w8a8_utils.py
head_ref_oid: f9e3256aec58833781689560e5d53bc0190472b8
artifact_dir: evidence/pull-bundles/vllm/gh-12587
---
# [Kernel][Quantization] Integrate block-quantized CUTLASS kernels for DeepSeekV3

- Repository: `vllm-project/vllm`
- PR: [12587](https://github.com/vllm-project/vllm/pull/12587)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/ops.h`
- `csrc/quantization/cutlass_w8a8/scaled_mm_c3x.cu`
- `csrc/quantization/cutlass_w8a8/scaled_mm_entry.cu`
- `csrc/torch_bindings.cpp`
- `vllm/_custom_ops.py`
- `vllm/model_executor/layers/quantization/fp8.py`
- `vllm/model_executor/layers/quantization/utils/fp8_utils.py`
- `vllm/model_executor/layers/quantization/utils/w8a8_utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-12587`
