---
id: pr-flashinfer-1954
repo: flashinfer-ai/flashinfer
pr: 1954
title: 'Feature: Support Relu2 activation in fused MoE'
author: amirkl94
date: '2025-10-21'
url: https://github.com/flashinfer-ai/flashinfer/pull/1954
source_category: upstream-code
architectures:
- sm100
tags:
- epilogue-fusion
- gemm
- kernel-fusion
- moe
techniques:
- epilogue-fusion
- kernel-fusion
hardware_features: []
kernel_types:
- gemm
- moe
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 0c8f23486c8030ec3c7174f1f4f375d1779f0751
inclusion_reason: kernel file changes
changed_paths:
- csrc/fused_moe/cutlass_backend/cutlass_fused_moe_kernels.cuh
- csrc/fused_moe/cutlass_backend/flashinfer_cutlass_fused_moe_sm100_binding.cu
- csrc/nv_internal/tensorrt_llm/cutlass_extensions/include/cutlass_extensions/epilogue/thread/fused_activations.h
- csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/include/common.h
- csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/moe_gemm/moe_gemm_template_dispatch.h
- flashinfer/fused_moe/core.py
head_ref_oid: f5038379df4600f31574feb6c52608ffca3d4149
artifact_dir: evidence/pull-bundles/flashinfer/gh-1954
---
# Feature: Support Relu2 activation in fused MoE

- Repository: `flashinfer-ai/flashinfer`
- PR: [1954](https://github.com/flashinfer-ai/flashinfer/pull/1954)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/fused_moe/cutlass_backend/cutlass_fused_moe_kernels.cuh`
- `csrc/fused_moe/cutlass_backend/flashinfer_cutlass_fused_moe_sm100_binding.cu`
- `csrc/nv_internal/tensorrt_llm/cutlass_extensions/include/cutlass_extensions/epilogue/thread/fused_activations.h`
- `csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/include/common.h`
- `csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/moe_gemm/moe_gemm_template_dispatch.h`
- `flashinfer/fused_moe/core.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1954`
