---
id: pr-vllm-35121
repo: vllm-project/vllm
pr: 35121
title: '[Performance] Cublas Bf16 Gate with Fp32 Output'
author: roikoren755
date: '2026-02-27'
url: https://github.com/vllm-project/vllm/pull/35121
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- gemm
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- gemm
- moe
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 38c498b8e3aaec95049f384edfc56ca12cbe1839
inclusion_reason: kernel file changes
changed_paths:
- CMakeLists.txt
- csrc/moe/moe_ops.h
- csrc/moe/router_gemm.cu
- csrc/moe/torch_bindings.cpp
- vllm/_custom_ops.py
- vllm/model_executor/layers/fused_moe/__init__.py
- vllm/model_executor/layers/fused_moe/router/gate_linear.py
- vllm/model_executor/models/deepseek_v2.py
- vllm/model_executor/models/nemotron_h.py
head_ref_oid: 5e18e1be6f9eacf994776d43838eb940973514b6
artifact_dir: evidence/pull-bundles/vllm/gh-35121
---
# [Performance] Cublas Bf16 Gate with Fp32 Output

- Repository: `vllm-project/vllm`
- PR: [35121](https://github.com/vllm-project/vllm/pull/35121)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `CMakeLists.txt`
- `csrc/moe/moe_ops.h`
- `csrc/moe/router_gemm.cu`
- `csrc/moe/torch_bindings.cpp`
- `vllm/_custom_ops.py`
- `vllm/model_executor/layers/fused_moe/__init__.py`
- `vllm/model_executor/layers/fused_moe/router/gate_linear.py`
- `vllm/model_executor/models/deepseek_v2.py`
- `vllm/model_executor/models/nemotron_h.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-35121`
