How to put a limit on CPU usage when running OpenFoam?

FlameKan · June 2, 2019, 07:53

Hi, guys,

I am running OpenFoam on Ubuntu from Windows 10, but I don't want it to take all my CPU power. Can anyone tell me how to cap a limit on it?

Thanks

LuckyTran · June 3, 2019, 12:23

What do you mean by limit cpu usage?

FlameKan · June 4, 2019, 04:05

Quote:

Originally Posted by LuckyTran

What do you mean by limit cpu usage?

I mean, to limit how much CPU power can be taken by the OpenFoam, because I still need to use the computer to do some other work.

Thanks for offering help.

LuckyTran · June 4, 2019, 12:08

Your computer has X number of cores. Just run openfoam on not all the cores...

Carlo_P · June 7, 2019, 06:25

If you want, you can use the maximum number of cores, but use (1 1 0.5) in the coefficient in the decomposerParDict file for schotch method.

June 2, 2019, 07:53	How to put a limit on CPU usage when running OpenFoam?	#1
FlameKan New Member S Li Join Date: Feb 2019 Posts: 9 Rep Power: 7	Hi, guys, I am running OpenFoam on Ubuntu from Windows 10, but I don't want it to take all my CPU power. Can anyone tell me how to cap a limit on it? Thanks

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June 3, 2019, 12:23		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	What do you mean by limit cpu usage?

June 4, 2019, 12:08		#4
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	Your computer has X number of cores. Just run openfoam on not all the cores...

June 7, 2019, 06:25		#5
Carlo_P Senior Member Carlo_P Join Date: May 2019 Location: Italy Posts: 176 Rep Power: 8	If you want, you can use the maximum number of cores, but use (1 1 0.5) in the coefficient in the decomposerParDict file for schotch method.