---
id: pr-vllm-37217
repo: vllm-project/vllm
pr: 37217
title: '[MoE/EPLB] Fix FlashInfer nvfp4 experts + EPLB correctness'
author: elvircrn
date: '2026-03-16'
url: https://github.com/vllm-project/vllm/pull/37217
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- moe
- nvfp4
- quantization
techniques:
- kernel-fusion
hardware_features:
- fp4
- nvfp4
kernel_types:
- moe
- quantization
languages:
- cute-dsl
captured_at: '2026-04-17'
status: merged
merge_sha: fd4d96302a2999a8d773b1b331951d232e3f5e05
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/fused_moe/cutlass_moe.py
- vllm/model_executor/layers/fused_moe/experts/trtllm_nvfp4_moe.py
- vllm/model_executor/layers/fused_moe/flashinfer_cutedsl_moe.py
- vllm/model_executor/layers/fused_moe/flashinfer_cutlass_moe.py
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/layers/fused_moe/modular_kernel.py
- vllm/model_executor/layers/fused_moe/oracle/nvfp4.py
- vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py
- vllm/model_executor/layers/quantization/modelopt.py
- vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py
artifact_dir: evidence/pull-bundles/vllm/gh-37217
head_ref_oid: 6c2e41d227a29cdaa3ae5b5f92a8c1b9169fc29e
---
# [MoE/EPLB] Fix FlashInfer nvfp4 experts + EPLB correctness

- Repository: `vllm-project/vllm`
- PR: [37217](https://github.com/vllm-project/vllm/pull/37217)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/fused_moe/cutlass_moe.py`
- `vllm/model_executor/layers/fused_moe/experts/trtllm_nvfp4_moe.py`
- `vllm/model_executor/layers/fused_moe/flashinfer_cutedsl_moe.py`
- `vllm/model_executor/layers/fused_moe/flashinfer_cutlass_moe.py`
- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/layers/fused_moe/modular_kernel.py`
- `vllm/model_executor/layers/fused_moe/oracle/nvfp4.py`
- `vllm/model_executor/layers/quantization/compressed_tensors/compressed_tensors_moe.py`
- `vllm/model_executor/layers/quantization/modelopt.py`
- `vllm/model_executor/layers/quantization/utils/flashinfer_fp4_moe.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-37217`
