---
id: pr-flashinfer-1973
repo: flashinfer-ai/flashinfer
pr: 1973
title: 'Feature: Add support for L40 FusedMoE in cutlass path'
author: amirkl94
date: '2025-10-29'
url: https://github.com/flashinfer-ai/flashinfer/pull/1973
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
- kernel-fusion
- moe
- tma
- warp-specialization
techniques:
- kernel-fusion
- warp-specialization
hardware_features:
- tma
kernel_types:
- gemm
- moe
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 159d0a057ab3f1fd4468adad918b7027a8d87db6
inclusion_reason: kernel file changes
changed_paths:
- csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/cutlass_heuristic.cpp
- csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/moe_gemm/moe_gemm_template_dispatch.h
- csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/moe_gemm/moe_tma_warp_specialized_traits.h
- flashinfer/autotuner.py
- flashinfer/fused_moe/core.py
- flashinfer/jit/core.py
- flashinfer/jit/fused_moe.py
head_ref_oid: ddc2ac26a9938ff097614c551df8062eb1488582
artifact_dir: evidence/pull-bundles/flashinfer/gh-1973
---
# Feature: Add support for L40 FusedMoE in cutlass path

- Repository: `flashinfer-ai/flashinfer`
- PR: [1973](https://github.com/flashinfer-ai/flashinfer/pull/1973)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/cutlass_heuristic.cpp`
- `csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/moe_gemm/moe_gemm_template_dispatch.h`
- `csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/moe_gemm/moe_tma_warp_specialized_traits.h`
- `flashinfer/autotuner.py`
- `flashinfer/fused_moe/core.py`
- `flashinfer/jit/core.py`
- `flashinfer/jit/fused_moe.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1973`
