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Platform Support. The runtime can be built with gcc, icc or clang. However, note that a runtime built with clang cannot be guaranteed to work with OpenMP code compiled by the other compilers, since clang does not support a 128-bit float type, and cannot therefore generate the code used for reductions of that type (which may occur in user code compiled by the other compilers). The OpenMP runtime is known …
https://stackoverflow.com/questions/26232432/since-gcc-on-mac-doesnt-support-openmp-what-can-i-do-to-let-it-support
At the first,I used the default gcc on my mac.but it does't support openmp. using " gcc -v ",I get gcc 4.2.1 So, I used brew to install gcc. When it is done, using the " gcc -v ",it has no changes. the brew give tips to me "openmp may not be supported,using " brew reinstall...
https://www.openmp.org/resources/openmp-compilers-tools/
In GCC 4.9.0, OpenMP 4.0 is supported for C and C++, but not Fortran. From GCC 4.9.1, OpenMP 4.0 is fully supported for C/C++/Fortran. From GCC 6.1, OpenMP 4.5 is fully supported for C and C++.
https://gcc.gnu.org/projects/gomp/
OpenMP's platform-neutral syntax meshes well with the portability goals of GCC and other GNU projects. The GOMP release includes a support library, libgomp, and extensions to target language parsers. A long-term goal is the generation of efficient and small code for OpenMP applications.
http://www.bowdoin.edu/~ltoma/teaching/cs3225-GIS/fall16/Lectures/openmp.html
The public linux machines dover and foxcroft have gcc/g++ installed with OpenMP support. All you need to do is use the -fopenmp flag on the command line: gcc -fopenmp hellosmp.c -o hellosmp It’s also pretty easy to get OpenMP to work on a Mac.
https://groups.google.com/a/continuum.io/d/topic/anaconda/c-4u6C29hYM
On Windows I’d generally recommend using TDM GCC (http://tdm-gcc.tdragon.net/) which has the option to automatically include openmp support and takes away the hassle of trying to manually...
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.
http://www.bowdoin.edu/~ltoma/teaching/cs3225-GIS/fall17/Lectures/openmp.html
The OpenMP functions are included in a header file called omp.h . The public linux machines dover and foxcroft have gcc/g++ installed with OpenMP support. All you need to do is use the -fopenmp flag on the command line: gcc -fopenmp hellosmp.c -o hellosmp It’s also pretty easy to get OpenMP to work on a …
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