Why is a multithreaded mex function slower when I used a parallel pool?
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
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 comentarios
Walter Roberson
el 15 de En. de 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.
Respuestas (0)
Ver también
Categorías
Más información sobre Startup and Shutdown en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!