larroy commented on issue #12160: Remove conflicting llvm OpenMP from cmake builds URL: https://github.com/apache/incubator-mxnet/pull/12160#issuecomment-495010491 This is not (only) about the assertion. Unit tests hang when compiling with OpenMP in Linux. I always compile without openmp for this reason. There are several related issues that we hope that this PR will make go away: https://github.com/apache/incubator-mxnet/issues/14999 @cjolivier01 is suggesting to run the tests with MXNET_USE_OPERATOR_TUNING=0 so OMP is always used for operators, but is this a useful scenario? If with the provided openmp and tuning we get similar perfomance why does it matter if some operators are tuned or not?
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