Limit number of threads used

Question

Limit number of threads used

fgvieira opened this issue 4 years ago · comments

Filipe G. Vieira commented 4 years ago

Dear all,

is it possible to limit the number of threads somalieruses?
Right now it seems to use all available cpus.

thanks,

Brent Pedersen · Answer 1 · Thu Apr 02 2020 21:21:36 GMT+0800 (China Standard Time)

hi, do you mean somalier ancestry?

Filipe G. Vieira · Answer 2 · Thu Apr 02 2020 21:37:23 GMT+0800 (China Standard Time)

Yes, I've only noticed it on somalier ancestry, but was not sure if there was a general option that also affected other analyses.

Brent Pedersen · Answer 3 · Thu Apr 02 2020 21:51:00 GMT+0800 (China Standard Time)

ok. should only be in ancestry. I will have a look. Next release might be a few weeks off.

Brent Pedersen · Answer 4 · Mon Apr 06 2020 01:14:47 GMT+0800 (China Standard Time)

hi, you can do this now with export OMP_NUM_THREADS=8 somalier ancestry .... I'll document this or make it a parameter for next release.

Yanick Hagmeijer · Answer 5 · Mon Aug 08 2022 23:04:50 GMT+0800 (China Standard Time)

Hi,
I know this is an old issue, but I just saw somalier relate also uses many cores. I haven't test the solution above yet, but just wanted to note it also happens in the relate sub-command.