Running >1 matlabpool jobs with the same local pool

2014 7 11
1 个回答
更新时间：2014 7 14
3 次查看（30 天）

0 个投票

I have a user who is running parallel jobs using the 'local' matlabpool profile and is encountering problems when running 2 jobs concurrently. He knows that the local system can have 12 workers in the local pool, and so he divided the 2 jobs using 6 workers each, but with the same command:
matlabpool close force local
CoreNum=6;
matlabpool('open','local',CoreNum);
This seems wrong, but I cannot find anywhere in the documentation to verify my suspicions. Can anyone advise?

请先登录，再回答此问题。

回答（1 个）

Shashank Prasanna
Shashank Prasanna 2014-7-11

0 个投票

Maximum of 1 MATLAB worker per CPU core is recommended. This does not include hyperthreaded virtual cores. As an examples, if you have a dual core i5 processor, then it is recommended you start a local pool of 2 workers. Any more workers will mean they fight for cpu time and you most likely won't see any gain in performance.

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Eng Hee Yeo
Eng Hee Yeo 2014-7-14
Thanks Shashank, but this is not what I am asking. My server has 12 cores, so, 2 x 6 workers is fine and there is no resource contention. My original question is whether it is correct to run 2 separate jobs using the same local matlabpool, with 6 workers each. What happens if one of the jobs issues a command like "matlabpool force close local"? Will the other job be affected?

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Startup and Shutdown 的更多信息

产品

标签

Community Treasure Hunt

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

Start Hunting!

Translated by