Hi all,

I would like to use fipy in parallel. I installed the components and performed 
the test to confirm
that Pytrilinos works on 16 CPUs:

mpi4py: processor 0 of 1 :: PyTrilinos: processor 0 of 1 :: FiPy: 10 cells on 
processor 0 of 1
mpi4py: processor 4 of 16 :: PyTrilinos: processor 4 of 16 :: FiPy: 4 cells on 
processor 4 of 16
mpi4py: processor 1 of 16 :: PyTrilinos: processor 1 of 16 :: FiPy: 6 cells on 
processor 1 of 16
mpi4py: processor 0 of 16 :: PyTrilinos: processor 0 of 16 :: FiPy: 4 cells on 
processor 0 of 16
mpi4py: processor 2 of 16 :: PyTrilinos: processor 2 of 16 :: FiPy: 6 cells on 
processor 2 of 16
mpi4py: processor 5 of 16 :: PyTrilinos: processor 5 of 16 :: FiPy: 0 cells on 
processor 5 of 16
mpi4py: processor 7 of 16 :: PyTrilinos: processor 7 of 16 :: FiPy: 0 cells on 
processor 7 of 16
mpi4py: processor 6 of 16 :: PyTrilinos: processor 6 of 16 :: FiPy: 0 cells on 
processor 6 of 16
mpi4py: processor 3 of 16 :: PyTrilinos: processor 3 of 16 :: FiPy: 6 cells on 
processor 3 of 16
mpi4py: processor 15 of 16 :: PyTrilinos: processor 15 of 16 :: FiPy: 0 cells 
on processor 15 of 16
mpi4py: processor 9 of 16 :: PyTrilinos: processor 9 of 16 :: FiPy: 0 cells on 
processor 9 of 16
mpi4py: processor 13 of 16 :: PyTrilinos: processor 13 of 16 :: FiPy: 0 cells 
on processor 13 of 16
mpi4py: processor 10 of 16 :: PyTrilinos: processor 10 of 16 :: FiPy: 0 cells 
on processor 10 of 16
mpi4py: processor 8 of 16 :: PyTrilinos: processor 8 of 16 :: FiPy: 0 cells on 
processor 8 of 16
mpi4py: processor 11 of 16 :: PyTrilinos: processor 11 of 16 :: FiPy: 0 cells 
on processor 11 of 16
mpi4py: processor 12 of 16 :: PyTrilinos: processor 12 of 16 :: FiPy: 0 cells 
on processor 12 of 16
mpi4py: processor 14 of 16 :: PyTrilinos: processor 14 of 16 :: FiPy: 0 cells 
on processor 14 of 16

Fine. After that I wanted to try the diffusion/mesh20x20.py with using 
FIPY_SOLVERS=Trilinos, but
it works only if the mesh is not larger than 10x10. In case I chose a larger 
one I get segmentation fault (signal 11).
With Pysparse on 1 CPU the script (mesh20x20.py) works just fine with large 
meshes.

Do you have any idea what went wrong during the installation and how to fix it? 
I am not an expert in
installing trilinos. I use python2.7 and trilinos-10.8.3.

Thank you very much for your help.
Happy 2012!

Bests,
Ferenc

 


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