Cannot start parallel pool R2020a

I have 6 core device and i have parallel computing toolbox installed.When i tried to start parallel pool,it shows this message.I dont know why this occurs.

I tried this 'distcomp.feature( 'LocalUseMpiexec', false )' but doesnt help.my GPU configuration :

1 "NVIDIA GeForce GTX 1650 Ti" "7.5" true false

[Edric Ellis]

This very much looks like something is wrong with the MATLAB installation on your system, or perhaps some code on your MATLAB path is interfering with the correct operation of Parallel Computing Toolbox. You might try using restoredefaultpath to see if that fixes things. If not, I suggest contacting MathWorks support.

Answer 1

[Raymond Norris]

Do you have other versions of MATLAB installed? If so, which? Had your run parpool successfully on those version(s)?

One suggestion I have is to delete your MATLAB R2020a preferences directory (which may not be desireable) since it sounds like something may have gotten corrupt. You can find the preference directory by calling prefdir.

[Deena Dayalan]

there are many files in that directory.Which is the preferences file?Is it safe to delete this file?

[Deena Dayalan]

I dont have any other versions of MATLAB installed in the system

[Raymond Norris]

I would delete the entire preferences directory (it will get rebuilt), but if that's too drastic, just move the folder for now to see if getting it rebuilt solves the issue.

[Deena Dayalan]

How to delete preferences directory?

[Raymond Norris]

From within MATLAB, run

delete(prefdir)

Better yet, from outside of MATLAB

Windows: in your file brower, go to the folder returned by prefdir and delete

Linux: rm -rf name-of-preferences-directory-returned-by-prefdir

[Deena Dayalan]

I managed to delete preferences file.when i restart matlab,preference file is created again,and i can start parallel pool.When i shut down pool and start parallel pool again,it throws same error again,like

"Error using parpool (line 139)

Parallel pool failed to start with the following error. For more detailed information, validate the

profile 'Profile_Deena' in the Cluster Profile Manager."

I tried to validate in pCluster profile manager,then it shows this:

When i clicked show report button at bottom,it shows the report i attached here.

If you can help,kindly reply

[Raymond Norris]

At this point, I would suggest contacting Technical Support ([e-mail]).