---
id: pr-flashinfer-2509
repo: flashinfer-ai/flashinfer
pr: 2509
title: 'perf: cache cudaGetDeviceProperties in gdn_prefill to avoid per-call overhead'
author: xutizhou
date: '2026-02-09'
url: https://github.com/flashinfer-ai/flashinfer/pull/2509
source_category: upstream-code
architectures:
- sm100
tags:
- prefill
techniques: []
hardware_features: []
kernel_types:
- prefill
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 30bf78e1a05d18aaebd484aa6f3c1db8e4c0b1b4
inclusion_reason: kernel file changes
changed_paths:
- csrc/gdn_prefill_launcher.cu
head_ref_oid: 076282c342e139acef2511bfab8568a9ecf7c86f
artifact_dir: evidence/pull-bundles/flashinfer/gh-2509
---
# perf: cache cudaGetDeviceProperties in gdn_prefill to avoid per-call overhead

- Repository: `flashinfer-ai/flashinfer`
- PR: [2509](https://github.com/flashinfer-ai/flashinfer/pull/2509)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/gdn_prefill_launcher.cu`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2509`
