Starting parallel pool gives message about crash dump files

When I create a parallel pool using parpool I get the following:

>> parpool()
Starting parallel pool (parpool) using the 'Processes' profile ...
Preserving jobs with IDs: 9 73 because they contain crash dump files.
You can use 'delete(myCluster.Jobs)' to remove all jobs created with profile Processes. To create 'myCluster' use 'myCluster = parcluster('Processes')'.
Connected to the parallel pool (number of workers: 12).

I'm not sure what action to take as I don't understand what "Preserving jobs with IDs: 9 73 because they contain crash dump files." means, nor how do I find and view the crash dump files. The rest of the parallel job seems to run fine, but this message not appear on other user's machines so I'd like to understand, and possibly resolve it just in case.

Thanks in advance!

Answer 1

[Walter Roberson]

Some previous run or runs crashed at some point in the past. The job identifiers involved were 9 and 73 -- which were not necessarily produced in the same run, but might have been.

At the time of the crash of the job, parcluster produced crash files in order to give some hope for debugging whatever it was that lead to the crashes.

When you started a new run, parcluster looked and noticed the crash files, and deliberately preserved them.

If you know you want to get rid of them, then give the command

myCluster = parcluster('Processes')
delete(myCluster.Jobs)