---
id: pr-tilelang-1953
repo: tile-ai/tilelang
pr: 1953
title: '[PIpeline] Enable software pipelining when warp specialization is unavailable'
author: LeiWang1999
date: '2026-03-22'
url: https://github.com/tile-ai/tilelang/pull/1953
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- MLA
- TMA
- arch_pipeline
- compiler_runtime
- fp4
- fp8
- hopper
- mxfp4
techniques:
- async-copy
- pipeline-stages
- warp-specialization
hardware_features:
- fp4
- fp8
- hopper
- mxfp4
- tma
kernel_types:
- compiler
- mla
- runtime
languages:
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 841b6bd140e834d2c0f7f9bdcdb2d8783b9ad9d4
inclusion_reason: 'Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.'
changed_paths:
- tilelang/engine/phase.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1953
head_ref_oid: 0b075d9c6db49c3c7285d3588072acc513ffa288
---
# [PIpeline] Enable software pipelining when warp specialization is unavailable

- Repository: `tile-ai/tilelang`
- PR: [1953](https://github.com/tile-ai/tilelang/pull/1953)
- Decision: `Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.`
- Reason: Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.

## Changed Paths

- `tilelang/engine/phase.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1953`
