Tech Articles

DMP with SOL 101


Tech Articles ID    KB8022075
Status:    Published
Published date:    04/23/2015
Updated:    06/29/2015
Reported In:   MSC Nastran - MSC Nastran - Standard (SOL 1 through 200)
 

Abstract (Question)

Summary

  •     Distributed Memory Parallel ( DMP ) uses multiple processors either on the same computer or on multiple computers.
  •     Limit the number of DMP processes to the number of sockets on the computers being used.
  •     DMP works with SMP.

Description (Answer)

Details

Below is a chart with various models and varying numbers of DMP processors. Performance improvements vary.

 

In general, the work done in Parallel for SOL 101 is the decomposition.

Job N dof N 2-D elements N 3-D elementes
xx0qst0 3,039,192 0 1,000,144
xx0ust0 1,993,544 0 431,580
xx0rst0 1,296,377 162,824 172,064

 

Commands

DMP parallel is activated with dmp=n on the command line. Where "n" is the number of CPUs

Caveat

  • Queing systems like PBS/LSF/SunGridengine will need to pass host names to Nastran for multihost runs.

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