Fail to start parpool

Hello Im trying to start parpool and i keep getting this error. What should i do?

Error using parpool (line 103) Failed to start a parallel pool. (For information in addition to the causing error, validate the profile 'local' in the Cluster Profile Manager.)

Error in parallel.internal.ui.PoolHelper.startPool (line 11) parpool();

Caused by: Error using parallel.internal.pool.InteractiveClient>iThrowWithCause (line 667) Failed to locate and destroy old interactive jobs. Error using parallel.internal.customattr.CustomGetSet/get (line 32) The storage metadata file does not exist or is corrupt.

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Answer 1

[Ishu]

Hi Sara,

I understand that you are getting problem in using "parpool" of MATLAB. To use the "parpool" you must have "Parallel Computing Toolbox" installed. To check that you can use "ver" command in the command window to check for all the installed toolbox. If you are unable to find "Parallel Computing Toolbox" in that list then try to install that first and then use "parpool".

There can also be some problem in your 'local' profile. To validate 'local' profile, you should follow the below steps:

• Go to the Home tab in MATLAB.
• Click on Parallel > Create and Manage Cluster Profiles.
• Select the 'local' profile and click Validate.

This process checks if there are any issues with the configuration. You can also set the profile to default settings and again try to run.

You can refer the below documentation for more information:

https://www.mathworks.com/help/parallel-computing/parpool.html

https://www.mathworks.com/products/parallel-computing.html

You can also refer to the below MATLAB Answer:

https://www.mathworks.com/matlabcentral/answers/335836-cannot-start-the-parallel-pool?s_tid=answers_rc1-1_p1_BOTH

Hope it helps!