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clang-omp / clang

clang with OpenMP 3.1 and some elements of OpenMP 4.0 support
clang-omp.github.com
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Where or which omp.h should I get? #37

Closed ghost closed 10 years ago

ghost commented 10 years ago

I can't find it in these repos. I'm using Ubuntu 14.04, here's what locate gives me:

$ locate omp.h
/opt/lib/osl-1.4.0/include/OSL/oslcomp.h
/usr/include/re_comp.h
/usr/include/linux/ppp-comp.h
/usr/include/linux/seccomp.h
/usr/include/net/ppp-comp.h
/usr/include/openssl/comp.h
/usr/lib/gcc/i686-w64-mingw32/4.8/include/omp.h
/usr/lib/gcc/x86_64-linux-gnu/4.8/include/omp.h
/usr/lib/gcc/x86_64-w64-mingw32/4.8/include/omp.h
/usr/lib/perl/5.18.2/CORE/regcomp.h
/usr/src/linux-headers-3.13.0-24/arch/...

When I'm trying to use gcc's one, it throws errors like that:

/usr/lib/gcc/x86_64-linux-gnu/4.8/include/xmmintrin.h:101:19: error: use of undeclared identifier '__builtin_ia32_addss'
  return (__m128) __builtin_ia32_addss ((__v4sf)__A, (__v4sf)__B);
                  ^
alexey-bataev commented 10 years ago

Hi, you have to download OpenMP runtime library from here http://openmp.llvm.org/ and then build it in accordance with the instructions. You will find required omp.h and libiomp5 libs in the result directory.

Best regards,

Alexey Bataev

Software Engineer Intel Compiler Team Intel Corp.

ghost commented 10 years ago

I see now. Thanks, Alexey! The issue can be closed.