pragma omp parallel on mac segmentation fault

#PRAGMA OMP PARALLEL ON MAC SEGMENTATION FAULT CODE#

Do let us know if your issue is resolved. So if you have a requirement of large size array then we will recommend you use dynamic memory allocation instead of using stack. In the above case, we will see that you will get segfault after 'std::cout' as stack size is exceeding after std::cout statement.

#PRAGMA OMP PARALLEL ON MAC SEGMENTATION FAULT CODE#

If you use gdb you will definitely get a segfault on line 12(of your code) but if you try something like below code snippet : const int N=600000 If you want to check the stack size you can use ulimit -a command and you will get the reason for segfault. Whereas for the pointer (commented part of your code) it will work without segfault for N=100000000 as it is using heap instead of the stack. We tried the code given by you and it is not giving segfault if I take N=300000. But we observe segfault if we take N>500000, and it is oblivious as it is exceeding maximum stack size for us.

I used '-qnextgen -fiopenmp -fopenmp-targets=spir64' for compilation.

When looking with gdb, segmentation fault happens at line 12, but I cannot access exact value i, even with -O0. With pointers it works even with N=100000000 (not tested above). The error does not happen if I take N=300000 or if I use pointers instead of arrays (use of commented lines). #pragma omp target teams distribute parallel for simd Jumping out of the parallel region in not permitted. At most one num threads clause can appear on the directive. At most one if clause can appear on the directive.

#pragma omp target data map(to:a,b) map(from:c) When a thread reaches a parallel directive (pragma), it creates a team of threads and becomes the master of the team. #pragma omp target data map(to:a,b) map(from:c) When testing offload computation to intel GPU with OpenMP, I obtain a segmentation fault at execution with this code : int main()

Pragma omp parallel on mac segmentation fault