SU2 High Memory Footprint-CGNS Reader

dominic · March 23, 2016, 01:01

Guys,

I'm observing a very high memory footprint/processor basis on running SU2_CFD.

nElements: 85Million
nNodes: 20 Million
Case: NASA CRM Model (CGNS MESH)

nProcs: 24

memory per process ~ 10GB

Looks like the CGNS reader reads the entire mesh onto all Partitions ? Also I can not use more than 32 processors for this mesh size. It exits while it is reading a particular section.

Any comments ?

Cheers,
Dominic

dominic · March 23, 2016, 01:10

Sorry, Incorrect subforum - Please follow up in the main SU2 forum..

Thanks, dominic

March 23, 2016, 01:01	SU2 High Memory Footprint-CGNS Reader	#1
dominic Member Dominic Chandar Join Date: Mar 2009 Location: United Kingdom Posts: 31 Rep Power: 17	Guys, I'm observing a very high memory footprint/processor basis on running SU2_CFD. nElements: 85Million nNodes: 20 Million Case: NASA CRM Model (CGNS MESH) nProcs: 24 memory per process ~ 10GB Looks like the CGNS reader reads the entire mesh onto all Partitions ? Also I can not use more than 32 processors for this mesh size. It exits while it is reading a particular section. Any comments ? Cheers, Dominic

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March 23, 2016, 01:10		#2
dominic Member Dominic Chandar Join Date: Mar 2009 Location: United Kingdom Posts: 31 Rep Power: 17	Sorry, Incorrect subforum - Please follow up in the main SU2 forum.. Thanks, dominic