If I call matlabpool open 4 and I have 4 cores, will I work in parallel with 4 or with 3 workers?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi, I have a desktop machine with 4 cores available. 1) I wonder whether, calling a pool of 4 workers with the PCT, there will be 4 workers working in parallel, or just 3 since 1 is the client. 2) Working with a cluster workstation (with MDCS), when I connect to the master node (client), I run my code in parallel calling "n" workers, and I want to compare the simulation time of the parallel computation with that of the sequential one (I want to see the speedup). For the sequential computation, should I call in the master node matlabpool open 1 (calling 1 slave node from the master node) or should I work directly with the master node, than I don't need to call a matlabpool? Thank you in advance.
0 commentaires
Réponse acceptée
Thomas
le 12 Juil 2013
Modifié(e) : Thomas
le 12 Juil 2013
If you call matlabpool open local 4 - you will have 4 workers (though you will have 5 matlab instances running - 1 master ans 4 workers)
To study speedup you can just run the code sequentially on the master- I do not think you need to start a matlabpool with 1 worker. (I would also convert my 'parfor' to a regular 'for' while running sequentially)
0 commentaires
Plus de réponses (1)
Voir également
Catégories
En savoir plus sur Cluster Configuration dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!