---
id: pr-vllm-12574
repo: vllm-project/vllm
pr: 12574
title: '[Kernel] port sgl moe_align_block_size kernels'
author: chenyang78
date: '2025-02-03'
url: https://github.com/vllm-project/vllm/pull/12574
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 95460fc51318702a33226b87152afe810187e01e
inclusion_reason: kernel file changes
changed_paths:
- csrc/moe/moe_align_sum_kernels.cu
- csrc/moe/moe_ops.h
- csrc/moe/torch_bindings.cpp
- vllm/_custom_ops.py
- vllm/envs.py
- vllm/model_executor/layers/fused_moe/fused_moe.py
head_ref_oid: c88e725517ad4cc855b69980f79a77e1166d3844
artifact_dir: evidence/pull-bundles/vllm/gh-12574
---
# [Kernel] port sgl moe_align_block_size kernels

- Repository: `vllm-project/vllm`
- PR: [12574](https://github.com/vllm-project/vllm/pull/12574)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/moe/moe_align_sum_kernels.cu`
- `csrc/moe/moe_ops.h`
- `csrc/moe/torch_bindings.cpp`
- `vllm/_custom_ops.py`
- `vllm/envs.py`
- `vllm/model_executor/layers/fused_moe/fused_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-12574`
