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How to start CFX Solver with an existing parfile |
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February 18, 2011, 06:14 |
How to start CFX Solver with an existing parfile
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#1 |
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sirLentschi
Join Date: Nov 2010
Posts: 87
Rep Power: 16 |
Hello everyone,
i want to split my Solver-process in 2 divisions: At first, cfx should ONLY produce a partitioning file <parfile>. That's quite easy to perform with the "part-only" command. Afterwards I want to read in this <parfile> and then to start the solver. Therefore I used following commands: cfx5solve -def test.def -part-only 24 and then in another script: cfx5solve -def test.def -parfile-read test.par cfx5solve -def test.def -par-dist <host-list> -start-method "HP MPI Distributed Parallel" -double -name tmp -ccl upwind.ccl cfx5solve -def test.def -par-dist <host-list> -start-method "HP MPI Distributed Parallel" -double -ini Upwind.res Or should I put the parfile-read command and the -par-dist in one line like this: cfx5solve -def test.def -parfile-read test.par -par-dist 24 -start-method "HP MPI Distributed Parallel" -double -name tmp -ccl upwind.ccl cfx5solve -def test.def -par-dist 24 -start-method "HP MPI Distributed Parallel" -double -ini Upwind.res The Solver should perfom some "Upwind" steps and then switch to "High Resolution" Without this splitting of the partitioning part, the Solving works! Thanks in advance. Regards Markus |
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February 18, 2011, 09:17 |
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#2 |
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sirLentschi
Join Date: Nov 2010
Posts: 87
Rep Power: 16 |
I got it:
to partition only: cfx5solve -def test.def -part-only #Partitions and then to solve: cfx5solve -def test.def -par-dist #CPUs -parfile-read <parfile> -start-method "HP MPI Distributed Parallel" .......
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February 18, 2011, 22:35 |
Hi
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#3 |
Member
Dynampally Pavitran
Join Date: Mar 2010
Location: India
Posts: 74
Rep Power: 16 |
What is the advantage of this method when compared with default partitioning command "-part" ?
Last edited by pavitran; February 20, 2011 at 01:20. |
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February 20, 2011, 14:31 |
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#4 |
Senior Member
Join Date: Mar 2009
Location: Europe
Posts: 169
Rep Power: 17 |
If you change nothing in the mesh, it is possible to reuse the par-file. This means can save the time for the partitioning.
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