Thank you, "mpirun -n 2 pvbatch --mpi --symmetric test.py" runs as expected.
But I am now using pure python with properly set library paths. It's a bit
annoying that these pvbatch traps aren't documented in the vtkMPIController
class reference or in
Run with --symmetric.
Without it, only root node reads the script and it tells the rest of the
nodes what to do via paraview's proxy mechanisms (which take effect only
for vtkSMProxy and subclasses).
With it, every node reads and executes the script and all nodes do their
own parts behind the
Thank you all for suggesting "pvbatch --mpi".
At least, this returns size=2 processes, but the updated test.py (below)
hangs with the following output:
$ mpirun -n 2 pvbatch --mpi test.py
comm:
rank: 0
size: 2
Process 0
Why is "Process 1" not printed, and why does the program hang instead of
On Tue, May 16, 2017 at 19:07:14 +0200, Ephraim Obermaier wrote:
> $ mpirun -n 2 pvpython test.py
I believe you want to use pvbatch for MPI-enabled Python scripts.
--Ben
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Note that you can run both the ParaView GUI and pvpython with MPI in order
to initialize, finalize and use MPI functions but as Dave said, they
should/will always be run with a single MPI process. The argument to run
MPI with either is "--mpi".
On Tue, May 16, 2017 at 1:11 PM, David E DeMarle
Try your script within pvbatch.
pvpython is analogous to the Qt client application, it (usually) is not
part of an MPI execution environment. Either one can connect to an MPI
parallel pvserver.
pvbatch is a python interface that is meant to be run on the server. It is
directly connected to the
Hello,
I am trying to use VTK's MPI communication from pvpython, running with
OpenMPI's mpirun. It seems like ParaView hasn't enabled the MPI
capabilities for VTK, although it was compiled from source with
PARAVIEW_USE_MPI=ON and correctly found the system OpenMPI-2.0.0 libraries
and includes.
I
