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Re: [Question #239778]: Multithreading activated by ENABLE_OPENMP, or -j option ?

 

Question #239778 on Yade changed:
https://answers.launchpad.net/yade/+question/239778

Anton Gladky proposed the following answer:
2013/11/25 jduriez <question239778@xxxxxxxxxxxxxxxxxxxxx>:
> I'm still a bit confused because of this (older) opinion : http://www
> .mail-archive.com/yade-users@xxxxxxxxxxxxxxxxxxx/msg01245.html

it has been fixed 3 years ago [1]. By default Yade is using  only 1
thread (job) now.

Hyperthreading can really slow down your simulation. IMHO, it is
better to switch it off for DEM-simulation and use the real number
of cores.

[1]
https://github.com/yade/trunk/commit/231b0d6a7246f2043d1cc6b82a58ad04a5c1a23d

Anton

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