Extreme delays when creating parpool in newer releases

12 Ansichten (letzte 30 Tage)
David K
David K am 7 Sep. 2022
Bearbeitet: David K am 8 Sep. 2022
I am trying to do some parallel processing and have run into issues when creating the worker pool. When I run the parpool command, even with only 1 worker specified, it will give the message "Starting parallel pool (parpool) using the 'local' profile ...", and then stall. I have waited a couple hours and it still does not complete the process or return an error. Interestingly, I have tried the same command on other versions of MATLAB installed on the same computer and was successful. I timed parpool(12) on the three versions I have and got the following results:
2017b: ~35 seconds
2018a: ~80 seconds
2020b: >2 hours
What could be causing this slow down, and how can I fix it?
My machine has: Windows 10; two Xeon e5-2699 processors with 22 cores each; 512 GB of RAM
  2 Kommentare
Raymond Norris
Raymond Norris am 8 Sep. 2022
Starting a local pool of 4 workers on my 4 core Windows machine took 90-95s with R2020b. 2+ hours certainly points to an issue (not a norm). A couple of thoughts
  • Is MATLAB R2020b installed locally or on a network drive?
  • Is the license an individual license or a concurrent license with a central license server?
I would suggest contacting Technical Support (support@mathworks.com) with this information to help troubleshoot this with you.
David K
David K am 8 Sep. 2022
Bearbeitet: David K am 8 Sep. 2022
@Raymond Norris The software is installed locally with a concurrent license server on the network. All versions appear to be using the network license. We've only had the license server less than a year, so this may be my first time attempting parpool while using it.
I'll send support an email with all the info, thanks.

Melden Sie sich an, um zu kommentieren.

Antworten (0)

Kategorien

Mehr zu Parallel Computing Fundamentals finden Sie in Help Center und File Exchange

Produkte


Version

R2020b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by