Cpu temperature

jamalf64 · March 17, 2020, 09:05

Hi dear friends
I'm working with 2 cpu xeon 2680 v3. I set 32 core in parallel processing ansys fluent. Cpu temperatures are 76 and 74 C. Are cpu temperatures okay?

flotus1 · March 17, 2020, 13:34

Yes, that's perfectly safe.
What's probably not optimal is using 32 threads for Fluent. Your CPUs have 12 cores each, so I would not expect any benefit from using more than 24 threads. Using more than that can even lead to lower performance. Personally, I still disable Hyperthreading for machines that run mostly MPI parallel CFD codes like Ansys Fluent.

jamalf64 · March 17, 2020, 23:51

Quote:

Originally Posted by flotus1

Yes, that's perfectly safe.
What's probably not optimal is using 32 threads for Fluent. Your CPUs have 12 cores each, so I would not expect any benefit from using more than 24 threads. Using more than that can even lead to lower performance. Personally, I still disable Hyperthreading for machines that run mostly MPI parallel CFD codes like Ansys Fluent.

Thanks a lot Alex
Best regards

March 17, 2020, 09:05	Cpu temperature	#1
jamalf64 Senior Member Jamal Foroozesh Join Date: Oct 2012 Location: Iran Posts: 162 Rep Power: 13	Hi dear friends I'm working with 2 cpu xeon 2680 v3. I set 32 core in parallel processing ansys fluent. Cpu temperatures are 76 and 74 C. Are cpu temperatures okay?

March 17, 2020, 13:34		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,399 Rep Power: 46	Yes, that's perfectly safe. What's probably not optimal is using 32 threads for Fluent. Your CPUs have 12 cores each, so I would not expect any benefit from using more than 24 threads. Using more than that can even lead to lower performance. Personally, I still disable Hyperthreading for machines that run mostly MPI parallel CFD codes like Ansys Fluent. jamalf64 likes this.

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