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February 1, 2013, 10:40 |
Parallel SU2
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#1 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
Dear developers,
I am having problems with the parallel usage of SU2. Trying to run the OneraM6 tutorial, in parallel, I get this error: Code:
zampini@pc-zampini:~/Documenti/PhD/SU2/TestCases/euler/oneram6$ parallel_computation.py -f inv_ONERAM6.cfg -p 2 -------------------------------------------------------------------------- mpirun was unable to launch the specified application as it could not access or execute an executable: Executable: /SU2Py/SU2_DDC Node: pc-zampini while attempting to start process rank 0. -------------------------------------------------------------------------- -------------------------------------------------------------------------- mpirun was unable to launch the specified application as it could not access or execute an executable: Executable: /SU2Py/SU2_CFD Node: pc-zampini while attempting to start process rank 0. -------------------------------------------------------------------------- sh: /SU2Py/merge_solution.py: not found zampini@pc-zampini:~/Documenti/PhD/SU2/TestCases/euler/oneram6$ Thanks a lot, Samuele |
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February 4, 2013, 23:46 |
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#2 |
Super Moderator
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15 |
Could you please try to run SU2_DDC? Does it work?
SU2_DDC should generates the different grids that SU2_CFD uses when running in parallel. SU2_DDC is a serial code that requires metis, but you can compile it with MPI and run it with mpirun. Cheers, Francisco |
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February 7, 2013, 04:06 |
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#3 |
Senior Member
Samuele Z
Join Date: Oct 2009
Location: Mozzate - Co - Italy
Posts: 520
Rep Power: 19 |
The command
Code:
SU2_DDC turb_ONERAM6.cfg Code:
zampini@pc-zampini:~/Documenti/PhD/SU2/TestCases/rans/oneram6$ SU2_DDC turb_ONERAM6.cfg ------------------------------------------------------------------------- | SU2 Suite (Domain Decomposition Code) | ------------------------------------------------------------------------- ------------------------ Physical case definition ----------------------- Input mesh file name: mesh_ONERAM6_turb_hexa.su2 -------------------------- Output information --------------------------- Don't visualize the partitions. ------------------- Config file boundary information -------------------- Navier-Stokes wall boundary marker(s): WING. Far-field boundary marker(s): FARFIELD. Symmetry plane boundary marker(s): SYMMETRY. ---------------------- Read grid file information ----------------------- Three dimensional problem. 43008 interior elements. 46417 points, and 0 ghost points. 3 surface markers. 2560 boundary elements in index 0 (Marker = FARFIELD). 1408 boundary elements in index 1 (Marker = WING). 2688 boundary elements in index 2 (Marker = SYMMETRY). ----------------------- Preprocessing computations ---------------------- Identifying vertices. --------------------------- Read FFD information ------------------------ There is no FFD box definition. Just in case, review the .su2 file ------------------------- Exit Success (SU2_DDC) ------------------------ zampini@pc-zampini:~/Documenti/PhD/SU2/TestCases/rans/oneram6$ Thanks a lot, Samuele |
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February 7, 2013, 05:23 |
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#4 |
Senior Member
Cean
Join Date: Feb 2010
Posts: 128
Rep Power: 16 |
just played with DDC and figured out that you have to change the PARTITIONING STRATEGY setting in the CFG file. By default, it is set to 0 partitions.
Code:
% --------------------------- PARTITIONING STRATEGY ---------------------------% % % Number of partitions of the domain NUMBER_PART= 4 % % Write a tecplot/paraview file for each partition (NO, YES) VISUALIZE_PART= YES |
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February 15, 2013, 20:07 |
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#5 |
Super Moderator
Francisco Palacios
Join Date: Jan 2013
Location: Long Beach, CA
Posts: 404
Rep Power: 15 |
Our recommendation is to use the parallel computation script. If not, as Cean pointed out, you should indicate the number of partitions in the config file.
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February 16, 2013, 00:41 |
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#6 |
Super Moderator
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I think you have not set the SU2_HOME and SU2_RUN variables. The python script is not able to find the executables. Also make sure you are using the latest code since the python scripts have been updated.
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