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<TITLE>Re: [Paraview] Problems with Paraview 3.6.1 on cluster (client - server mode)</TITLE>
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<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>
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-Ken<BR>
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On 10/20/09 1:56 AM, "myaccountmail9 myaccountmail9" <<a href="myaccountmail9@gmail.com">myaccountmail9@gmail.com</a>> wrote:<BR>
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</SPAN></FONT><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>
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<a href="http://www.itk.org/Wiki/Setting_up_a_ParaView_Server">http://www.itk.org/Wiki/Setting_up_a_ParaView_Server</a><BR>
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If we try to connect the client started with the command:<BR>
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paraview<BR>
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and the server, started with the command:<BR>
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pvserver --use-offscreen-rendering<BR>
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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>
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The error always is (similar to):<BR>
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ParaView3/Servers/Common/vtkServerConnection.cxx, line 67<BR>
vtkServerConnection (0x3182220): Server Connection Closed!<BR>
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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>
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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>
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mpirun -np 4 /usr/X11R6/bin/glxgears<BR>
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So, it doen't seem a problem regarding X connection and permission...<BR>
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Moreover, executing the test:<BR>
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/ParaView/ParaView-bin$ ctest -I ,,10<BR>
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we obtain some segmentation fault, but the log file can't give any useful information.<BR>
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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>
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..<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>
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MPI version is: mpirun (Open MPI) 1.2.7rc2<BR>
OSMesa version is: 7.0.3-7<BR>
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We searched on google, on Paraview wiki... without any succes: can you help us please?<BR>
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If you need more information let us now<BR>
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Thank you very much<BR>
<BR>
Luis<BR>
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**** Kenneth Moreland<BR>
*** Sandia National Laboratories<BR>
*********** <BR>
*** *** *** email: <a href="kmorel@sandia.gov">kmorel@sandia.gov</a><BR>
** *** ** phone: (505) 844-8919<BR>
*** web: <a href="http://www.cs.unm.edu/~kmorel">http://www.cs.unm.edu/~kmorel</a><BR>
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