Is there a way to start a parellel pool with maximum available workers as the cores on the machine?

1 次查看（过去 30 天）
Leos Pohl
Leos Pohl 2021-8-24
回答： Raymond Norris 2021-8-24
Is there a way to start a parellel pool with maximum available workers as the cores on the machine?
I am using a compiled code which then is being run on a cluster, each cluster node can have a different number of available cores. Is there a way to start parpool with the maximum possible amount of workers? If I start pool = parpool('local'); I only get 12 workers even though on the node, where such code is run, I have 32 cores allocated.

请先登录，再回答此问题。

回答（1 个）

Raymond Norris
Raymond Norris 2021-8-24
pool = parpool('local',maxNumCompThreads);
Alternatively, if you're running this through a scheduler (e.g. PBS), you could query the scheduler first.
% Query for available cores (assume either Slurm or PBS)
sz = str2num([getenv('SLURM_CPUS_PER_TASK') getenv('PBS_NP')]); %#ok<ST2NM>
if isempty(sz)
% Not running through a scheduler, get default size
sz = maxNumCompThreads; end
pool = parpool('local',sz);

类别

在 Help Center 和 File Exchange 中查找有关 Parallel Computing Fundamentals 的更多信息

标签

产品


版本

R2018b

Community Treasure Hunt

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

Start Hunting!

Translated by