MAC OS X / CLANG-OpenMP

[b-scholz]

CLANG++/OpenMP on MAC OS X does not work. It seems that the parallelisation macros in ParalleUtils.h do not work properly for Clang++/OpenMP (NB: for G++/OpenMP on MAC OS X seems to work without issues).

[HerbertJordan]

What version of clang are you using? OpenMP is only supported by clang since 3.8.

[b-scholz]

I get following output:

clang version 3.5.0 
Target: x86_64-apple-darwin15.3.0
Thread model: posix

typing clang-omp++ -v. I installed clang-omp by brew install clang-omp.

You are right - it might be a good point to double-check whether a new version of clang has no issues.

[souffle-lang]

brew deploys an initial version of the openmp project (around version 3.5) which seems to be buggy and make the Souffle's test-cases fail.

I rebuilt the latest version of clang++ 3.9 with the openmp project. The test-cases are passing.

I believe we need to wait until brew is upgrading clang-omp to a newer version or adding the omp project to the llvm brew package.