Local Parallel Cluster Validation failed at SPMD job test

It says out of memory but I surely have more than enough.

Then I tried fewer workers. When set to fewer than 12, validation succeds. However, I also have MATLAB 2017 installed on this computer and it can start 24 workers easily. So what's wrong here?

Answer 1

[Edric Ellis]

This might well be a ulimit problem. See here for details on how to fix it: https://uk.mathworks.com/matlabcentral/answers/465489-why-do-i-receive-an-error-java-lang-outofmemoryerror-unable-to-create-new-native-thread-while-run (note that ulimit problems can have many different syndromes).

[Tmfu Vh]

My ulimit -u is 1024, and ulimit is unlimited, so I don't think there is a problem in ulimit …