---
id: pr-flashinfer-2994
repo: flashinfer-ai/flashinfer
pr: 2994
title: '  Fix MXFP4/MXFP8 failures in SM120 FAST_BUILD and expand all_tiles[]                                                  '
author: askliar
date: '2026-04-13'
url: https://github.com/flashinfer-ai/flashinfer/pull/2994
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- fp8
techniques: []
hardware_features:
- fp4
- fp8
kernel_types: []
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 04f4c0c9a6669f374bbb4a1cab5100c6972ff79a
inclusion_reason: kernel file changes
changed_paths:
- csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/cutlass_heuristic.cpp
- flashinfer/compilation_context.py
head_ref_oid: 2af5e9d0791cc8a2693073de68dfb73fe274cd74
artifact_dir: evidence/pull-bundles/flashinfer/gh-2994
---
#   Fix MXFP4/MXFP8 failures in SM120 FAST_BUILD and expand all_tiles[]                                                  

- Repository: `flashinfer-ai/flashinfer`
- PR: [2994](https://github.com/flashinfer-ai/flashinfer/pull/2994)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/nv_internal/tensorrt_llm/kernels/cutlass_kernels/cutlass_heuristic.cpp`
- `flashinfer/compilation_context.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2994`
