Hello!
I have been trying to make use of a specific amount of threads to run my matlab code. I am using mex to run code in C that includes OpenMP
This is the part of the code, there are 8 more parts in the code that have that same code, but they are not executed at the same time.
Now the code compiles normaly, however when I watch it run on task manager I see that the CPU usage spreads across every thread, not just 2/4 that I put in my code.
I have tried compiling using many different compilers, Visual Studio 2015, 2017, 2022, mingw and using various flags when compiling, COMPFLAGS, CFLAGS and CXXFLAGS, on Matlab 2018b and Matlab 2022b but I get the same result every time. I installed the parallel computing toolbox and tried creating and enabling clusters from withing the Matlab interface.
Instead of num_threads I have also tried forcing the number of threads with omp_set_num_threads(2) and removing the num_threads but I also get the same result.
omp_get_num_threads returns 8 but omp_get_thread_num is always 1, doesn't change values.
I have tried every solution I found online but nothing works.
Any help would be appreciated!
