Maximum number of processes exceeded

Question

Hello,

I am trying to run an adapted version of the code on reentry induction (the tutorial n21), and I am having issues with the parallelization of the computation. My computer has 14 cores and 20 logical processors, but when I set --np to any value above 4, openCARP returns "Maximum number of processes (4) exceeded".

I am using docker to run openCARP, but that does not seem to be the problem, since other images are able to access the whole CPU.

Any ideas on what I could do to modify this constraint and increase the CPU usage?

Thank you very much,

Paula

Answer 1

Hi,

The resources that openCARP can use are certainly limited in your carputils settings file. In order to unlimit resources, open your settings file (likely $HOME/.config/carputils/settings.yaml) and comment the line starting with "MAX_NP:".

Best regards,

Marie