---
id: pr-vllm-26138
repo: vllm-project/vllm
pr: 26138
title: '[CI/Build] Conditionally register cutlass_fp4_group_mm to fix building on Hopper'
author: mgoin
date: '2025-10-03'
url: https://github.com/vllm-project/vllm/pull/26138
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 5d5146eee35a989f14de6f4203cabd77174fa1ba
inclusion_reason: defer
changed_paths:
- csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu
- csrc/torch_bindings.cpp
artifact_dir: evidence/pull-bundles/vllm/gh-26138
head_ref_oid: 79df0837c7c3af11a51dcc64ca3080672717f306
---
# [CI/Build] Conditionally register cutlass_fp4_group_mm to fix building on Hopper

- Repository: `vllm-project/vllm`
- PR: [26138](https://github.com/vllm-project/vllm/pull/26138)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `csrc/quantization/fp4/nvfp4_blockwise_moe_kernel.cu`
- `csrc/torch_bindings.cpp`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-26138`
