Hi Ken,<br>
thank you for your reply.<br>
No, we didn't compile OSMesa ourselves, but we installed OSMesa library on each node downloading the .deb packages with:<br>
<br>
apt-get install libosmesa6<br>
apt-get install libosmesa6-dev<br>
<br>
Have you got any other idea?<br>
Thank you again.<br><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">Luis</span></font><br><br><br><div class="gmail_quote">2009/10/20 Moreland, Kenneth <span dir="ltr"><<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">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.<br>
<br>
-Ken<div><div></div><div class="h5"><br>
<br>
<br>
On 10/20/09 1:56 AM, "myaccountmail9 myaccountmail9" <<a href="http://myaccountmail9@gmail.com" target="_blank">myaccountmail9@gmail.com</a>> wrote:<br>
<br>
</div></div></span></font><div><div></div><div class="h5"><blockquote><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;">Hi,<br>
we have a Linux (Debian) cluster without gpu and we have a big problem using Paraview 3.6.1in client - server mode.<br>
The server has been compiled with OSMesa library and following the instructions reported here (in particular the section "OSMesa support"):<br>
<br>
<a href="http://www.itk.org/Wiki/Setting_up_a_ParaView_Server" target="_blank">http://www.itk.org/Wiki/Setting_up_a_ParaView_Server</a><br>
<br>
If we try to connect the client started with the command:<br>
<br>
paraview<br>
<br>
and the server, started with the command:<br>
<br>
pvserver --use-offscreen-rendering<br>
<br>
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"...<br>
<br>
The error always is (similar to):<br>
<br>
ParaView3/Servers/Common/vtkServerConnection.cxx, line 67<br>
vtkServerConnection (0x3182220): Server Connection Closed!<br>
<br>
Executing with: 0<br>
*** Process received signal ***<br>
Signal: Segmentation fault (11)<br>
Signal code: (128)<br>
Failing at address: (nil)<br>
[ 0] /lib/libpthread.so.0 [0x7f4fc6536a80]<br>
[ 1] /usr/lib/libGL.so.1(glBlendFuncSeparateEXT+0x16) [0x7f4fc7bc12e6]<br>
*** End of error message ***<br>
Segmentation fault<br>
<br>
<br>
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:<br>
<br>
mpirun -np 4 /usr/X11R6/bin/glxgears<br>
<br>
So, it doen't seem a problem regarding X connection and permission...<br>
<br>
Moreover, executing the test:<br>
<br>
/ParaView/ParaView-bin$ ctest -I ,,10<br>
<br>
we obtain some segmentation fault, but the log file can't give any useful information.<br>
<br>
111/475 Testing TestGradientBackground ***Exception: SegFault<br>
121/475 Testing TestOSConeCxx ***Exception: SegFault<br>
131/475 Testing TestTranslucentLUTDepthPeeling***Exception: SegFault<br>
141/475 Testing BoxWidget ***Exception: SegFault<br>
151/475 Testing TestParallelopipedWidget ***Exception: SegFault<br>
<br>
..<br>
<br>
On our local machine with gpu 100% test passed, and we haven't any problem to connect client and server on that machine.<br>
<br>
<br>
MPI version is: mpirun (Open MPI) 1.2.7rc2<br>
OSMesa version is: 7.0.3-7<br>
<br>
<br>
We searched on google, on Paraview wiki... without any succes: can you help us please?<br>
<br>
If you need more information let us now<br>
<br>
Thank you very much<br>
<br>
Luis<br>
<br>
<br>
<br>
<br>
<br>
<br>
</span></font></blockquote><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"><br>
</span></font></div></div><font size="2"><font face="Consolas, Courier New, Courier"><span style="font-size: 10pt;"><br>
**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <a href="http://kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a><br>
** *** ** phone: (505) 844-8919<br>
*** web: <a href="http://www.cs.unm.edu/%7Ekmorel" target="_blank">http://www.cs.unm.edu/~kmorel</a><br>
</span></font></font><font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size: 11pt;"><br>
</span></font>
</div>
</blockquote></div><br>