[libc-commits] [PATCH] D149857: [libc][Docs] Add warning about running GPU tests with parallelism

Joseph Huber via Phabricator via libc-commits libc-commits at lists.llvm.org
Thu May 4 08:18:00 PDT 2023


jhuber6 created this revision.
Herald added subscribers: libc-commits, ecnelises, tschuett.
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Now that a large amount of GPU tests can be run in parallel, we should
document spurious failures. It is a well-known issue that launching many
GPU applications in parallel can lead to various problems, the worst of
which being an indefinite hang.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149857

Files:
  libc/docs/gpu/testing.rst


Index: libc/docs/gpu/testing.rst
===================================================================
--- libc/docs/gpu/testing.rst
+++ libc/docs/gpu/testing.rst
@@ -5,6 +5,11 @@
 Testing the GPU libc library
 ============================
 
+.. note::
+   Running GPU tests with high parallelism is likely to cause spurious failures,
+   out of resource errors, or indefinate hangs. limiting the number of threads 
+   used while testing is highly recommended.
+
 .. contents:: Table of Contents
   :depth: 4
   :local:


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