---
id: pr-vllm-21020
repo: vllm-project/vllm
pr: 21020
title: '[BugFix] Fix import error on non-blackwell machines'
author: LucasWilkinson
date: '2025-07-16'
url: https://github.com/vllm-project/vllm/pull/21020
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: d31a64712489d7c079fe48515c7ddd8a60bc0e71
inclusion_reason: defer
changed_paths:
- csrc/attention/mla/sm100_cutlass_mla_kernel.cu
- csrc/ops.h
- csrc/torch_bindings.cpp
artifact_dir: evidence/pull-bundles/vllm/gh-21020
head_ref_oid: a41432f14c5ca7a5c6a12eb1d4239d165c58c2d3
---
# [BugFix] Fix import error on non-blackwell machines

- Repository: `vllm-project/vllm`
- PR: [21020](https://github.com/vllm-project/vllm/pull/21020)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `csrc/attention/mla/sm100_cutlass_mla_kernel.cu`
- `csrc/ops.h`
- `csrc/torch_bindings.cpp`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-21020`
