I have a critical issue with my Matlab installations that prevents me from using parallel pools on all versions of Matlab installed.
When starting a parallel pool (either from command line or manually), the process initiates and returns a result ('connected to 5 workers') and then it hangs. Using ctr+C gives the followig error message but then the window become irresponsive (which is why I had to make a screen capture:
As you might see here the problem arises when running parallel.Pool.hBuildPool. This error is independent from the vesion of Matlab: I installed version 2019b and the problem is the same, on a clen install.
This problem started after using two sessions of matlab on the same computer, each one using a parallel pool. Both crashed at some point while one was processing data, and this issue seems permanent on that computer.
Any suggestion to rsolve this?