Why is a multithreaded mex function slower when I used a parallel pool?
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
When I run a multithreaded mex function after having used a parallel pool, my function runs a lot slower (10-20x slowdown). Also, the more threads, the slower the function becomes.
Shutting down the pool does not help.
Rebooting Matlab restores the original speed (and scalability) of the mex Function.
4 Commenti
Walter Roberson
il 15 Gen 2016
I have a vague memory that someone else might have reported something like this a few years ago, but I am not sure I could find the posting. This is something I would recommend creating a support case for.
Risposte (0)
Vedere anche
Categorie
Scopri di più su Startup and Shutdown in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!