Error using parpool. Parallel pool failed to start with the following error. For more detailed information, validate the profile 'Processes' in the Cluster Profile Manager.

Error using parpool

Parallel pool failed to start with the following error. For more detailed information, validate the profile 'Processes' in the Cluster Profile Manager.

Error in parallel.internal.ui.PoolHelper.startPool (line 12)

parpool();

Caused by:

Error using parallel.internal.pool.AbstractInteractiveClient>iThrowWithCause

Failed to initialize the interactive session.

Error using parallel.internal.pool.AbstractInteractiveClient>iThrowIfBadParallelJobStatus

The interactive communicating job errored with the following message: An unexpected error occurred accessing a parallel pool. The underlying error was: Failed to

bind to endpoint: tcp://tcpnodelay=localhost:27470/protocol/catapult

Cause: protectedInit():: No ports to bind!

Errors encoountered:

Address already in use

Answer 1

[Edric Ellis]

This is probably the following known problem in R2023a: https://www.mathworks.com/support/bugreports/2968710 . There are workaround steps posted there.

[RH]

Any other work around? I run my code on a cluster where I (think I) cannot change the startup file

[Edric Ellis]

You should be able to add the taskStartup.m as part of the AttachedFiles when starting the pool. Something like this:

parpool(AttachedFiles = "path/to/taskStartup.m")

[Gustavo Lunardon]

I have almost the same error

poolobj = parpool;

Starting parallel pool (parpool) using the 'Processes' profile ...

Error using parpool

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

Cluster Profile Manager.

Caused by:

Error using parallel.internal.pool.AbstractInteractiveClient>iThrowWithCause

Failed to initialize the interactive session.

Error using parallel.internal.pool.AbstractInteractiveClient>iThrowIfBadParallelJobStatus

The interactive communicating job failed with no message.

I tried your solution but I cannot edit the taskStartup.m and attaching a mofidied version on a nonprotected folder did solve the problem. Any suggestion?

[Edric Ellis]

@Gustavo Lunardon that error looks different enough to me that it might be something completely different. I suggest contacting MathWorks support.

[Gustavo Lunardon]

Thanks for the advice!