[Paraview] Problems with Paraview 3.6.1 on cluster (client - server mode)

[Moreland, Kenneth]

Not really, but I would consider trying downloading the Mesa source and compiling it myself.  Since the error is happening somewhere in the OpenGL libraries (and is not really being replicated on other user's platforms), the only cause I can come up with is a problem with the libraries (and mismatched libraries is the most common problem).  Compiling Mesa is actually pretty easy, so it is worth taking the effort to check.

-Ken


On 10/21/09 12:54 AM, "myaccountmail9 myaccountmail9" <myaccountmail9 at gmail.com> wrote:

Hi Ken,
thank you for your reply.
No, we didn't compile OSMesa ourselves, but we installed OSMesa library on each node downloading the .deb packages with:

apt-get install libosmesa6
apt-get install libosmesa6-dev

Have you got any other idea?
Thank you again.
Luis


2009/10/20 Moreland, Kenneth <kmorel at sandia.gov>
Could it be a problem with mismatched libraries?  I notice in the error below that it occurs in /usr/lib/libGL.so.1.  This is a system library.  Did you compile OSMesa yourself?  If so, then you should not be using the system GL libraries; you should be using the libraries that you compiled when you also generated the OSMesa library.

-Ken



On 10/20/09 1:56 AM, "myaccountmail9 myaccountmail9" <myaccountmail9 at gmail.com <http://myaccountmail9@gmail.com> > wrote:

Hi,
we have a Linux (Debian) cluster without gpu and we have a big problem using Paraview 3.6.1in client - server mode.
The server has been compiled with OSMesa library and following the instructions reported here (in particular the section "OSMesa support"):

http://www.itk.org/Wiki/Setting_up_a_ParaView_Server

If we try to connect the client started with the command:

paraview

and the server, started with the command:

pvserver --use-offscreen-rendering

we must disable the checkbox "Remote rendering threshold" (but this causes bad performances) in the client settings (Edit -> Settings -> Render view -> Server), othervise Paraview crashes after loading a big input or performing some operation such us changing "outline" to "wireframe"...

The error always is (similar to):

ParaView3/Servers/Common/vtkServerConnection.cxx, line 67
vtkServerConnection (0x3182220): Server Connection Closed!

Executing with: 0
*** Process received signal ***
Signal: Segmentation fault (11)
Signal code:  (128)
Failing at address: (nil)
[ 0] /lib/libpthread.so.0 [0x7f4fc6536a80]
[ 1] /usr/lib/libGL.so.1(glBlendFuncSeparateEXT+0x16) [0x7f4fc7bc12e6]
*** End of error message ***
Segmentation fault


This error also occurs if we start client and server logging directly (without any ssh connection) on the master node; on master node X is running and we can execute the test:

mpirun -np 4 /usr/X11R6/bin/glxgears

So, it doen't seem a problem regarding X connection and permission...

Moreover, executing the test:

/ParaView/ParaView-bin$ ctest -I ,,10

we obtain some segmentation fault, but the log file can't give any useful information.

111/475 Testing TestGradientBackground        ***Exception: SegFault
121/475 Testing TestOSConeCxx                 ***Exception: SegFault
131/475 Testing TestTranslucentLUTDepthPeeling***Exception: SegFault
141/475 Testing BoxWidget                     ***Exception: SegFault
151/475 Testing TestParallelopipedWidget      ***Exception: SegFault

..

On our local machine with gpu 100% test passed, and we haven't any problem to connect client and server on that machine.


MPI version is: mpirun (Open MPI) 1.2.7rc2
OSMesa version is: 7.0.3-7


We searched on google, on Paraview wiki... without any succes: can you help us please?

If you need more information let us now

Thank you very much

Luis








   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov <http://kmorel@sandia.gov>
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel <http://www.cs.unm.edu/%7Ekmorel>





   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel

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