[release/2.4] Prevent static initialization of at::cuda::warp_size() (Backport #2293) #2308
+14
−4
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Fixes SWDEV-540240, SWDEV-540309, SWDEV-539989
80cca70
created a static global variable that used
at::cuda::warp_size()
toinitialize its value, which needs GPUs to be visible to query device
properties. However, GPUs are not present on CPU-only build systems.
Convert static variable into a static function, thus preventing static
initialization.
http://rocm-ci.amd.com/job/pyt_whl_docker_mainline/1461/artifact/build_artifacts.txt/*view*/
Ran microbenchmark to confirm basic functionality: