How to enable parallel computing?

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Elia Paini
Elia Paini 2022-7-15
评论： Rik 2022-7-15
Hi, I'm trying to improve fsolve execution with parallel computing, by implementing this instruction:
options = optimoptions('fsolve','Display','none','Algorithm','trust-region','UseParallel',true);
However, I get this warning during each iteration:
Warning: Unable to create a parallel pool. Continuing with evaluations in serial. To avoid this warning, set the 'UseParallel' option to false.
I think it's possible to use parallel computing, since I'm using a 4 core CPU (AMD Ryzen 5 3500U). I tried to enable all cores manually, but the warning persists.
How to solve it? Thank you!
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Elia Paini
Elia Paini 2022-7-15
I enabled all cores "manually" with Windows msconfig.
I added Parallel Computing Toolbox and now it works. However, I can't see any difference in terms of speed, maybe for the processor itself.
Rik
Rik 2022-7-15
Not every task can be sped up by throwing more cores at the problem.
If you want help with your specific task, you will have to post details about your specific task.

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