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MATLAB coder - compiler does not support OpenMP error (using a supported compiler)

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Lawrence Costa
Lawrence Costa 2018-1-12
编辑： Walter Roberson 2018-2-6
When attempting to use codegen for a function that includes a parfor loop, I am getting the error "Warning: The selected compiler does not support the OpenMP library; this loop will not be parallelized". I am using a Mac with High Sierra; the compiler is Xcode 9.2 (which is listed as being supported for all coder features here: https://www.mathworks.com/support/compilers.html#mac_n1). How might I get this working?

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Walter Roberson
Walter Roberson 2018-1-16
编辑：Walter Roberson 2018-2-6
You cannot do that. Apple does not support openmp for xcode. It does support openmp for one of its other compilers. A common solution is to install a different compiler, but you could configure Apple's clang instead. gcc and clang are not "supported" compilers for the Mac so no promises that everything will work.
https://stackoverflow.com/questions/41979611/is-it-possible-to-run-openmp-in-xcode-8

更多回答（1 个）

Darshan Ramakant Bhat
Please refer to the "Notes for the Mac Platform" section in the below document:
https://www.mathworks.com/support/compilers.html#mac_n1
OpenMP is not supported in Mac platforms.
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Lawrence Costa
Lawrence Costa 2018-1-16
In that document, I had noticed that the "This compiler does not support OpenMP" footnote is only listed for Xcode 7 and 8, which is why I thought Xcode 9 would work. I'm guessing that's not the case now? Thanks

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