[llvm-dev] Interesting puzzle for some openmp guru

Johannes Doerfert via llvm-dev llvm-dev at lists.llvm.org
Sun Oct 3 17:03:31 PDT 2021

CC'ing the people that can probably tell you. My money is on the
interaction of the GNU/OpenMP compatibility layer in LLVM/OpenMP
and some calls getting resolved to the wrong place while others
go to "the right place".

I would assume simply telling gcc to use the LLVM/OpenMP runtime
might be enough here. Having two OpenMP runtimes used is probably
not a good idea even if it "works".

~ Johannes

On 10/3/21 02:53, Pawel K. via llvm-dev wrote:
> Hi,
> Maybe here we could build argument for switching from gcc to clang?
> I will test it on clang soonish and ask if its fixable if it happens too.
> Maybe it should be fixed in R or gcc or intel mkl. Idk yet.
> Would some openmp in clang guru wanna have a peek at this "issue" with
> openmp around r and intel mkl lib on gcc?
> https://www.jyotirmoy.net/posts/2021-10-03-r-mkl-openmp.html
> Best regards,
> Pawel
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