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https://gcc.gnu.org/onlinedocs/libgomp/Enabling-OpenMP.html
The flag also arranges for automatic linking of the OpenMP runtime library (Runtime Library Routines). A complete description of all OpenMP directives accepted may be found in the OpenMP Application Program Interface manual, version 4.5.
ABI compatibility with Gcc and Intel's existing OpenMP compilers. We currently have binary compatibility with OpenMP 3.1 code compiled by gcc 4.9, however we do not have support for OpenMP 4.0 code that uses task cancellation when compiled by gcc 4.9. How we will support such code remains a research issue.
https://gcc.gnu.org/ml/gcc-patches/2018-11/msg00628.html
Nov 08, 2018 · [committed 0/4] (Partial) OpenMP 5.0 support for GCC 9. From: Jakub Jelinek <jakub at redhat dot com> To: gcc-patches at gcc dot gnu dot org; Date: Thu, 8 Nov 2018 18:16:11 +0100; ... omp_fulfill_event - OpenMP allocator support, omp_alloc/omp_init_allocator etc., allocate directive and clause - use_device_addr clause support - ancestor ...
https://stackoverflow.com/questions/1304363/how-to-check-the-version-of-openmp-on-linux
In implementations that support a preprocessor, the _OPENMP macro name is defined to have the decimal value yyyymm where yyyy and mm are the year and month designations of the version of the OpenMP API that the implementation supports.
https://www.openmp.org/resources/openmp-compilers-tools/
19 rows · A number of compilers and tools from various vendors or open source community …
http://www.dartmouth.edu/~rc/classes/intro_openmp/compile_run.html
-openmp: as many threads as available cores: ... GNU Compiler Example $ gcc -o omp_helloc -fopenmp omp_hello.c $ export OMP_NUM_THREADS=2 $ ./omp_helloc Hello World from thread = 0 Hello World from thread = 1 Number of threads = 2 $ $ gfortran -o omp_hellof -fopenmp omp_hello.f $ export OMP_NUM_THREADS=4 $ ./omp_hellof
https://docs.microsoft.com/en-us/cpp/build/reference/openmp-enable-openmp-2-0-support
The C++ compiler currently supports the OpenMP 2.0 standard. However, Visual Studio 2019 also now offers SIMD functionality. To use SIMD, compile by using the /openmp:experimental option. This option enables both the usual OpenMP features, and additional OpenMP SIMD features not available when using the /openmp switch.
https://software.intel.com/en-us/forums/intel-c-compiler/topic/611485
Hi guys, I know this is a very common and known issue, but I think that this forum has to have a specific thread on this in order to have an official answer. I'm compiling with GCC and I'm using Intel MKL (that calls Intel OpenMP library). Result: BOTH libgomp (from GCC) and libiomp5 (from Intel) are linked. I would avoid this double-linking, but how?
https://github.com/android/ndk/issues/9
Mar 11, 2016 · The lack of openmp in clang is not a problem, but as there is the suggestion to switch to it instead of gcc, to have it support all gcc extensions should be a must :) Also, as it is the 3.8 release, then it just needs to be compiled with openmp support and will work directly out of the box. In any case, great work you're doing there ;)
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