---
id: pr-flashinfer-2779
repo: flashinfer-ai/flashinfer
pr: 2779
title: 'feat: FP8 output support for CUTLASS MLA paged attention'
author: carlyou
date: '2026-05-11'
url: https://github.com/flashinfer-ai/flashinfer/pull/2779
source_category: upstream-code
architectures:
- sm100
tags:
- GDN
- attention_kv
- blackwell
- cutlass
- fp8
- gemm_quant
- mla
- paged attention
- sm100
techniques:
- fine-grained-quantization
hardware_features:
- blackwell
- fp8
kernel_types:
- attention
- gemm
- mla
languages:
- cuda-cpp
- cute-dsl
captured_at: '2026-05-16'
status: merged
merge_sha: 1bb79d4a2039f9c83caad3855fce2f6db65f6200
inclusion_reason: Preserve page/KV/layout and plan-run contracts; profile memory traffic separately from math utilization.
changed_paths:
- csrc/cutlass_mla.cu
- csrc/flashinfer_mla_binding.cu
- flashinfer/mla/_core.py
- include/flashinfer/attention/cutlass_mla.cuh
- tests/attention/test_cutlass_mla_fp8_output.py
artifact_dir: evidence/pull-bundles/flashinfer/gh-2779
head_ref_oid: 5acd64de161f0569b9f6c65d47f91e2bbfeef3fb
---
# feat: FP8 output support for CUTLASS MLA paged attention

- Repository: `flashinfer-ai/flashinfer`
- PR: [2779](https://github.com/flashinfer-ai/flashinfer/pull/2779)
- Decision: `Preserve page/KV/layout and plan-run contracts; profile memory traffic separately from math utilization.`
- Reason: Preserve page/KV/layout and plan-run contracts; profile memory traffic separately from math utilization.

## Changed Paths

- `csrc/cutlass_mla.cu`
- `csrc/flashinfer_mla_binding.cu`
- `flashinfer/mla/_core.py`
- `include/flashinfer/attention/cutlass_mla.cuh`
- `tests/attention/test_cutlass_mla_fp8_output.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2779`
