[OpenMP] Use TLS for gtid on Solaris #138508
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When running the `openmp` testsuite on Solaris/amd64, many tests `FAIL` like ``` # | OMP: Error llvm#11: Stack overflow detected for OpenMP thread #1 ``` In a `Debug` build, I also get ``` # | Assertion failure at kmp_runtime.cpp(203): __kmp_gtid_get_specific() < 0 || __kmp_gtid_get_specific() == i. ``` Further investigation shows that just setting `__kmp_gtid_mode` to 3 massively reduced the number of failures. Tested on `amd64-pc-solaris2.11` and `x86_64-pc-linux-gnu`.
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@psumbera This is just the first in a series of patches fixing |
brad0
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May 6, 2025
MaskRay
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May 6, 2025
GeorgeARM
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May 7, 2025
When running the `openmp` testsuite on Solaris/amd64, many tests `FAIL` like ``` # | OMP: Error llvm#11: Stack overflow detected for OpenMP thread llvm#1 ``` In a `Debug` build, I also get ``` # | Assertion failure at kmp_runtime.cpp(203): __kmp_gtid_get_specific() < 0 || __kmp_gtid_get_specific() == i. ``` Further investigation shows that just setting `__kmp_gtid_mode` to 3 massively reduces the number of failures. Tested on `amd64-pc-solaris2.11` and `x86_64-pc-linux-gnu`.
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When running the
openmptestsuite on Solaris/amd64, many testsFAILlikeIn a
Debugbuild, I also getFurther investigation shows that just setting
__kmp_gtid_modeto 3 massively reduces the number of failures.Tested on
amd64-pc-solaris2.11andx86_64-pc-linux-gnu.