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Forum: FLUENT

August 15, 2014, 00:29

Replies: 13

Running Fluent by Hyper-threading

Views: 10,517

Posted By LuckyTran

That's pretty helpful. You would have to set the...

That's pretty helpful. You would have to set the affinity each time or setup a specific start-up script to take advantage of the process affinity.

But how would you determine which CPUs are...

Forum: FLUENT

August 14, 2014, 05:01

Replies: 13

Running Fluent by Hyper-threading

Views: 10,517

Posted By LuckyTran

Hyperthreading works if the CPU has available...

Hyperthreading works if the CPU has available idle time and there are no other bottlenecks in the system. Given the size & scale of the jobs you're doing, I highly doubt that there is any idle time....

Forum: FLUENT

August 13, 2014, 17:02

Replies: 13

Running Fluent by Hyper-threading

Views: 10,517

Posted By LuckyTran

I disable hyperthreading on all machines to avoid...

I disable hyperthreading on all machines to avoid having this issue. That way, jobs are assigned only to physical cores. Usually with CFD there are rarely unused cpu cycles anyway and hyperthreading...

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