[Trilinos-Users] Exodus and MPI

[Andrea Penza]

Hi Shota,

thanks for your answer.
So, do you think that without a Cubit License it could be impossible to use parallel computing with an ExodusII mesh?
I've tried also with Triangle mesh file, and the problem was the same: the system was looking for two splitted mesh file .par . If I've understood right the python script you named should create this *.par file...right?
Thanks a lot, kind regards.

Andrea


Il giorno 13/dic/2011, alle ore 23.01, Shota Soga ha scritto:

> HI Andrea,
> 
> When you run Sundance with multi-dore, it asks to distributed mesh by default for parallel computing.
> 
> I do not know how to generate distributed mesh with exodus (probably Cubit can do this?), but in the source directory, I thought there is python script to convert Exodus file to partitioned triangle mesh. Then, use Triangle Mesh reader for partitioned triangle mesh.
> 
> Shota
> 
> On Tue, Dec 13, 2011 at 4:43 PM, Andrea Penza <pepe.aero at alice.it> wrote:
> Hi all,
> 
> I have problems executing Sundance with ExodusII mesh. I'm trying to run
> it with MPI on the two processors of my DualCore. I've tested MPI and
> Exodus separately and everything was working.
> Now the problem is that my system look for two splitted files for the
> mesh, particularly it search *.pxo file format.
> The system reports this message at runtime:
> 
> andrea at andrea-MacBookPro:~/Projects/trilinos-10.8.3-Source/MyApps/LaplaceScalar$ time mpirun -np 2 ./LaplaceScalarExo.exe
> Teuchos::GlobalMPISession::GlobalMPISession(): started processor with
> name andrea-MacBookPro and rank 0!
> Teuchos::GlobalMPISession::GlobalMPISession(): started processor with
> name andrea-MacBookPro and rank 1!
> Simulation built using Sundance version 2.3.0 (10 May 2008)
> Sundance is copyright
>  (C) 2005-2008 Sandia National Laboratories
>  (C) 2007-2008 Texas Tech University
> and is licensed under the GNU Lesser General Public License, version 2.1
> [1]
> Sundance detected exception:
> /home/andrea/Projects/trilinos-10.8.3-Source/packages/Sundance/src-utils/Utilities/SundancePathUtils.cpp:58:
> 
> Throw number = 1
> 
> Throw test that evaluated to true: true
> 
> could not find file ../Mesh/exodusii/square-2-0.pxo in path
> {., /home/andrea/Projects/trilinos-10.8.3-Source/BUILD/packages/Sundance/etc, /usr/local/etc, NOTFOUND/Sundance/meshes, /home/andrea/Projects/trilinos-10.8.3-Source/BUILD/packages/Sundance/examples-tutorial/data, /usr/local/examples-tutorial/data}
> caught
> in /home/andrea/Projects/trilinos-10.8.3-Source/packages/Sundance/src-std-mesh/Sources/SundanceExodusMeshReader.cpp:474
> 
> caught
> in /home/andrea/Projects/trilinos-10.8.3-Source/packages/Sundance/src-std-mesh/Sources/SundanceMeshSource.cpp:69
> 
> test FAILED
> Sundance detected exception:
> /home/andrea/Projects/trilinos-10.8.3-Source/packages/Sundance/src-utils/Utilities/SundancePathUtils.cpp:58:
> 
> Throw number = 1
> 
> Throw test that evaluated to true: true
> 
> could not find file ../Mesh/exodusii/square-2-1.pxo in path
> {., /home/andrea/Projects/trilinos-10.8.3-Source/BUILD/packages/Sundance/etc, /usr/local/etc, NOTFOUND/Sundance/meshes, /home/andrea/Projects/trilinos-10.8.3-Source/BUILD/packages/Sundance/examples-tutorial/data, /usr/local/examples-tutorial/data}
> caught
> in /home/andrea/Projects/trilinos-10.8.3-Source/packages/Sundance/src-std-mesh/Sources/SundanceExodusMeshReader.cpp:474
> 
> caught
> in /home/andrea/Projects/trilinos-10.8.3-Source/packages/Sundance/src-std-mesh/Sources/SundanceMeshSource.cpp:69
> 
> test FAILED
> 
> 
> As you can see, my system look for a
> file ../Mesh/exodusii/square-2-0.pxo for the process with rank 0, and
> the file ../Mesh/exodusii/square-2-1.pxo for the rank 1.
> The source mesh file name is square.exo in the dir Mesh/exodusii.
> Thanks a lot to everyone could help me!
> Kind regards,
> 
> Andrea
> 
> 
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> 
> 
> 
> -- 
> Shota Soga
> Graduate Assistant at North Carolina State University
> 
> Email: ssoga at ncsu.edu
> URL:http://abdelk.ne.ncsu.edu/w/
> 
> 

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