[Paraview] Stream tracer with custom source fails in parallel mode

Fri Mar 18 04:56:30 EDT 2016

Dear All,

I have been struggling to make the Stream Tracer with Custom Source (STCS) work in parallel. It works in serial mode without any issues but in parallel I am hitting a wall of obstacles. I made a little test with the disk_out_ref.ex2 in serial and parallel by and this is what I found. I am using Paraview v5.0.0 compiled from source with system libs linked against openmpi 1.7.1. I also briefly checked with other mpi flavours and under Windows with the MPI enabled binaries from paraview.org, but the problems did not disappear.

Serial mode:

1)
Load file (just with the "V" variable)
Slice with Z=5
Stream Tracer with Custom Source (STCS)
Success

2)
Load file
Slice with Z=5
Mask points (10 points with random sampling)
STCS
Success

3)
Load file
Select some points with Select Points Through
Extract Selection
STCS
Success

Everything worked without issues. Now the same in parallel on 6 processes. Here is a little word of warning, the Exodus reader reads all the data onto just one process, so unless the D3 filter is used everything works in more or less serial mode.

1)
Load file
D3
Slice with Z=5
STCS
Crash
"
Generic Warning: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Parallel/MPI/vtkMPICommunicator.cxx, line 72
MPI had an error
------------------------------------------------
MPI_ERR_IN_STATUS: error code in status
------------------------------------------------

--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 5 in communicator MPI_COMM_WORLD
with errorcode 18.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
"
2)
Load file
D3
Slice with Z=5
Mask points (10 points, random sampling & proportional distribution)
Paraview hangs:
"
ERROR: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Filters/Core/vtkMaskPoints.cxx, line 325
vtkPMaskPoints (0x31c8480): No points to mask

ERROR: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Filters/Core/vtkMaskPoints.cxx, line 325
vtkPMaskPoints (0x4b0dea0): No points to mask
"
If you do not switch proportional distribution then Paraview spits an error "No points to mask" but you doesn't crash or freeze. Generating STCS from the masked points will crash Paraview though.

3)
Load file
D3
Slice with Z=5
D3 the slice
Mask points (10 points)
D3 the points
STCS
Crash
"
Generic Warning: In /home/caldron-b/paluszek/linux/Software/Paraview/v5.0.0/ParaView-v5.0.0-source/VTK/Parallel/MPI/vtkMPICommunicator.cxx, line 72
MPI had an error
------------------------------------------------
MPI_ERR_TRUNCATE: message truncated
------------------------------------------------

--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
with errorcode 15.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
"

4)
Load file
D3
Select some points with Select Points Through
Extract Selection
STCS
Crash

I also tried with more combinations with and without the D3 filter on the subsequent filters and on my industrial geometries but I could never make the Stream Tracer with Custom Source work in parallel. I found a related bug report http://www.paraview.org/Bug/view.php?id=15342 and an old post https://cmake.org/pipermail/paraview/2009-December/014909.html but no solutions to this problem. Interestingly the common Stream Tracer filter works in parallel with both point and high resolution line sources.

I would be grateful if you could try to first reproduce this behavior and confirm that this is not specific to my installation. If anyone had an idea how to fix that I would be more than happy.

Regards,
Lukasz

[Beschreibung: Beschreibung: Description : cid:image001.png at 01CF0B8F.DB7831F0]
Łukasz Paluszek
Airbus Helicopters
Aerodynamics Department (ETGA)
86607 Donauwörth
Germany
Tel.: +49 (90) 671 8231
Fax.: +49 (90) 671 9122
Lukasz.Paluszek at airbus.com<mailto:Lukasz.Paluszek at airbus.com>

AIRBUS HELICOPTERS DEUTSCHLAND GmbH

Sitz der Gesellschaft / Registered Office: Donauwörth

Registergericht / Registration Court: Amtsgericht Augsburg HRB 16508

Vorsitzender des Aufsichtsrates / Chairman of the Supervisory Board: Guillaume Faury

Geschäftsführung / Board of Management: Dr. Wolfgang Schoder, Vorsitzender / CEO; Johannes Kleidorfer; Dr. Klaus Przemeck; Martin Schübel; Stefan Thomé

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