Difference between revisions of "Contrib multiSolver/parallel"
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| Line 8: | Line 8: | ||
# Instead of <tt>decomposePar</tt>, use: | # Instead of <tt>decomposePar</tt>, use: | ||
| − | + | multiSolver -preDecompose && decomposePar && multiSolver -postDecompose | |
== reconstructPar == | == reconstructPar == | ||
| Line 15: | Line 15: | ||
Instead of <tt>reconstructPar</tt>, use: | Instead of <tt>reconstructPar</tt>, use: | ||
| − | + | multiSolver -preReconstruct && reconstructPar && multiSolver -postReconstruct | |
== Aliasing == | == Aliasing == | ||
| Line 29: | Line 29: | ||
For example, instead of: | For example, instead of: | ||
| − | + | multiSolver -load all | |
use: | use: | ||
| − | + | mpirun -n 4 multiSolver -load all -parallel | |
substituting the correct options for mpirun. | substituting the correct options for mpirun. | ||
Revision as of 14:18, 6 April 2011
Parallel processing is now available with multiSolver.
1 decomposePar
To decompose the case directory:
- Set it up as a usual multiSolver-enabled case directory;
- Create a system/decomposeParDict file as you would with a regular parallel solver;
- Instead of decomposePar, use:
multiSolver -preDecompose && decomposePar && multiSolver -postDecompose
2 reconstructPar
To reconstruct the case directory:
Instead of reconstructPar, use:
multiSolver -preReconstruct && reconstructPar && multiSolver -postReconstruct
3 Aliasing
If you are going to be doing this regularly, it might be a good idea to create a shorter alias for these two commands. To do this, add:
alias multiDecomposePar='multiSolver -preDecompose && decomposePar && multiSolver -postDecompose' alias multiReconstructPar='multiSolver -preReconstruct && reconstructPar && multiSolver -postReconstruct'
To the end of your OpenFOAM-version/etc/aliases.sh or OpenFOAM-version/etc/aliases.csh file.
4 Parallel post processing
Post processors are available that work with the data split across the processor directories / drives. multiSolver can be post processed in this way as well. To achieve this, use the commands as described on the post processing page, except run them in parallel.
For example, instead of:
multiSolver -load all
use:
mpirun -n 4 multiSolver -load all -parallel
substituting the correct options for mpirun.
