I’m encountering a persistent issue with MATLAB’s Parallel Computing Toolbox when using "parpool(‘Processes’, 20)" or "parpool(20)" and later "parfor" computing.

I launch a pool using "parpool(‘Processes’, 20)" or "parpool(20)" and then run a parfor loop. During execution, CPU and memory usage behave normally.

After the computation ends as expectation, I call "delete(gcp(‘nocreate’))" to close the parallel pool or time ends MATLAB shuts it down. However, CPU usage spikes to 100%, and dozens of MATLAB background processes remain visible in Task Manager, each using ~1–2% CPU. Even after closing the main MATLAB GUI, the processes continue running.

The only thing i can do is restart the computer.I’m encountering a persistent issue with MATLAB’s Parallel Computing Toolbox when using "parpool(‘Processes’, 20)" or "parpool(20)" and later "parfor" computing.

I launch a pool using "parpool(‘Processes’, 20)" or "parpool(20)" and then run a parfor loop. During execution, CPU and memory usage behave normally.

After the computation ends as expectation, I call "delete(gcp(‘nocreate’))" to close the parallel pool or time ends MATLAB shuts it down. However, CPU usage spikes to 100%, and dozens of MATLAB background processes remain visible in Task Manager, each using ~1–2% CPU. Even after closing the main MATLAB GUI, the processes continue running.

The only thing i can do is restart the computer. I’m encountering a persistent issue with MATLAB’s Parallel Computing Toolbox when using "parpool(‘Processes’, 20)" or "parpool(20)" and later "parfor" computing.

I launch a pool using "parpool(‘Processes’, 20)" or "parpool(20)" and then run a parfor loop. During execution, CPU and memory usage behave normally.

After the computation ends as expectation, I call "delete(gcp(‘nocreate’))" to close the parallel pool or time ends MATLAB shuts it down. However, CPU usage spikes to 100%, and dozens of MATLAB background processes remain visible in Task Manager, each using ~1–2% CPU. Even after closing the main MATLAB GUI, the processes continue running.

The only thing i can do is restart the computer. parpool, parfor, parallel computing MATLAB Answers — New Questions

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