How to restart a new backgroundPool

The delete( gcp('nocreate')) doesn't seem to be deleting the predefined backgroundPool.

>> pool   = backgroundPool; 
>> delete(gcp('nocreate'));
>> pool
pool = 
 BackgroundPool with properties: 
           NumWorkers: 24
                 Busy: false

Below would work. However we will not have variable pool in advance

>> pool   = backgroundPool;
>> delete( pool);
>> pool
pool = 
Deleted object.

any suggestion how to restart a fresh backgroundPool?

Answer 1

[Matt J]

delete(pool)

pool   = backgroundPool; 

[Pete sherer]

the problem is that you will get error if you don't have pool pre-defined

that's why looking to use something like

delete(gcp('nocreate'));

[Matt J]

From ChatGPT:

There isn't a direct analog of gcp('nocreate') for backgroundPool because backgroundPool is a built-in, persistent pool that always exists when Parallel Computing Toolbox is available. Behavior Differences from gcp:

• Unlike parpool, which creates and manages a pool of workers explicitly, backgroundPool is always available.
• Calling backgroundPool multiple times always returns the same handle; it does not create additional instances.
• Since backgroundPool is never "closed" or "deleted," there's no need for a 'nocreate' option like gcp('nocreate').