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brian
Posts: 15
Registered: ‎01-19-2007
Accepted Solution

How to optimise Autodesk CFD simulation 2014

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06-13-2013 08:39 AM

http://forums.autodesk.com/t5/Autodesk-Simulation-CFD/How-to-optimise-Autodesk-CFD-simulation-2012/m...

 

http://forums.autodesk.com/t5/Autodesk-Simulation-CFD/Processor-under-utilization/m-p/3787768/highli...

 

The threads above have me wandering about CFD 2014

  • is the CFD solver still limited to 2^n cores?
  • is hyperthreaded cores excluded from solvers?
  • lastly, are there conditions where meshing results take longer on more processor cores?

thanks for any help.

 

Brian Brisbin

National K Works Inc.

 

soon will be running 

IV20014

CDF 2014

Simulation Mech 2014

Dell t5600

8GB ram

Intel 6 core Xeon

win 7 pro

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apolo.vanderberg
Posts: 290
Registered: ‎08-31-2011

Re: How to optimise Autodesk CFD simulation 2014

06-13-2013 12:46 PM in reply to: brian

Yes we still use 2^n cores for our solver.

Hyperthreading will not yield any performance boost for our solvers

I have not seen situations where having more cores causes the mesher to be slower. The one exception to this is if you are comparing a machine that has a faster 4core (for exmaple @3.0Ghz) compared to some of the newer 8core cpus (that could have cores @ 2.2Ghz) in a case like this since meshing is dominant to 1 core, the performance loss of 3Ghz to 2.2Gh will cause a slower meshing process.

 

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brian
Posts: 15
Registered: ‎01-19-2007

Re: How to optimise Autodesk CFD simulation 2014

06-13-2013 01:19 PM in reply to: brian

thanks for the reply.

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OmkarJ
Posts: 406
Registered: ‎10-02-2012

Re: How to optimise Autodesk CFD simulation 2014

06-17-2013 11:55 AM in reply to: brian

Apolo

 

Is multithread meshing (ie with multiple core) really any beneficial? Also, in 2014, can we use it when we have extruded meshes?

 

OJ

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