---
id: pr-pytorch-152967
repo: pytorch/pytorch
pr: 152967
title: '[ATen][CUDA] Optimize 128 bit vectorization'
author: pytorchbot
date: '2025-05-07'
url: https://github.com/pytorch/pytorch/pull/152967
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
techniques: []
hardware_features: []
kernel_types:
- gemm
languages:
- cuda-cpp
captured_at: '2026-04-17'
status: merged
merge_sha: 24b0c4abfcab302b6547ebb791d34b612f86949d
inclusion_reason: kernel file changes
changed_paths:
- aten/src/ATen/native/cuda/CUDALoops.cuh
head_ref_oid: 26f49377a62d0ff3a376a9dbcf0312dd6c65ad07
artifact_dir: evidence/pull-bundles/pytorch/gh-152967
---
# [ATen][CUDA] Optimize 128 bit vectorization

- Repository: `pytorch/pytorch`
- PR: [152967](https://github.com/pytorch/pytorch/pull/152967)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `aten/src/ATen/native/cuda/CUDALoops.cuh`

## Evidence Bundle

`evidence/pull-bundles/pytorch/gh-152967`
