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Forum: CFX

March 31, 2014, 05:50

Replies: 16

Specify number of cores that CFX should use.

Views: 16,596

Posted By Lance

As you say, it is problem and hardware dependent....

As you say, it is problem and hardware dependent. I generally see a linear speed-up between 8 and 16 cores for my problems, but we have infiniband which removes the interconnection bottleneck. If you...

Forum: CFX

March 30, 2010, 02:21

Replies: 16

Specify number of cores that CFX should use.

Views: 16,596

Posted By Lance

wow, fast response from the other side of the...

wow, fast response from the other side of the globe.
Many thanks Glenn, what would we do without you :)

Forum: CFX

March 30, 2010, 02:05

Replies: 16

Specify number of cores that CFX should use.

Views: 16,596

Posted By Lance

Hi Glenn, I'll try to be more clear: when...

Hi Glenn,
I'll try to be more clear:
when running top on the compute node, I see four CFX processes at 100% CPU but only one Ansys which runs at ~400% CPU. I was expecting to see four Ansys at...

Forum: CFX

March 29, 2010, 08:39

Replies: 16

Specify number of cores that CFX should use.

Views: 16,596

Posted By Lance

Specify number of cores that CFX should use.

Hi, is there a command to specify the number of cores that CFX should use, similar to Fluent's -tX, where X is an integer?

Right now CFX uses all the eight cores on the compute node because I...

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