Remark: gcc-5 is the version I have installed, yours might differ. Gcc-5 -fopenmp -o your_program your_program.c Now you should be able to compile with OpenMP enabled using: This can be easily done with the command: You need to add this directory to your $PATH. When calling a compiler your bash will look into /usr/bin by default and not in /usr/local/bin. Now you need to tell your system about it. If you right-click and chose 'Show original' it should show the gcc-5 executable in /usr/local/Cellar/gcc/5.3.0/bin/gcc-5 (version numbers may differ). You will find the symlink in usr/local/bin. The code generator uses the OpenMP (Open Multiprocessing) application interface to support shared-memory, multicore code generation. You can generate parallel for-loops on the macOS platform by using parfor in your MATLAB ® code. Brew appends the version number to gcc so that it does not conflict with the one installed by Command Line Tools. Install OpenMP Library on macOS Platform. The command you used should work: brew install gcc -without-multilibĪlternatively, if brew says that you already have gcc installed you can try brew reinstall gcc -without-multilibĪs you may have noted, if you don't specify -without-multilib brew warns you that OpenMP may not work.įind the location of the newly installed gcc. On the other hand, if you still want to use gcc I can guide you through the steps that worked for me. The newer versions of Clang do have support for OpenMP according to this post (where you can also find instructions on how to set it up). I should install to get the package compiled in its optimal way I am currently running high sierra and the only thing that works is automated install via. So by calling gcc -fopenmp -o your_program your_program.c you are in fact using Clang, which until now has not had built-in support for OpenMP. With XCode 4 or better you will need to download the command-line tools as an. On a mac, the command gcc is a symlink to Clang. You will also need to have Apples XCode Tools installed from the Mac App Store.

Install openmp mac osx sierra