<P>
I have compiled ParaView3.2.1 on a cluster with OSMesa and openmpi<BR>
support. It works without any X server problem on 18 nodes.<BR>
I run paraview as<BR>
<BR>
/usr/local/openmpi-1.2.4/bin/mpirun -np 18 --x LD_LIBRARY_PATH=/home/raashid/src/lib64/:$LD_LIBRARY_PATH --mca btl ^openib,mvapi -hostfile nodes ./pvserver --use-offscreen-rendering<BR>
<BR>
I have generated a vtk-xml structured grid file with about 48 million<BR>
cells (file size about 800MB) which I am able to visualize without any<BR>
problem when I run pvserver on 18 nodes. While reading the files<BR>
memory usage in all the nodes go up and all the nodes seem to balance<BR>
the load.<BR>
<BR>
However when I try to open an ensight file with 33 million cells<BR>
(Unstructured grid, generated by another software, but is a lot larger<BR>
in terms of disk space usage about 2.1GB). ParaView fails while trying<BR>
to load this file. pvserver crashes when the memory usage on the<BR>
headnode of the cluster is about 20% to total available memory. Also<BR>
on all other nodes, besides the head node paraview does not seem to<BR>
consume any memory. The erro message is as follows:<BR>
<BR>
[raashid@n0 bin]$ /usr/local/openmpi-1.2.4/bin/mpirun -np 18 --x LD_LIBRARY_PATH=/home/raashid/src/lib64/:$LD_LIBRARY_PATH --mca btl ^openib,mvapi -hostfile nodes ./pvserver --use-offscreen-rendering<BR>
Listen on port: 11111<BR>
Waiting for client...<BR>
Client connected.<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
Executing with: 0<BR>
[n0:18863] *** Process received signal ***<BR>
[n0:18863] Signal: Segmentation fault (11)<BR>
[n0:18863] Signal code: Address not mapped (1)<BR>
[n0:18863] Failing at address: 0x2ab0ecbcb0<BR>
[n0:18863] [ 0] /lib64/tls/libpthread.so.0 [0x342f10c420]<BR>
[n0:18863] [ 1] ./pvserver(_ZN20vtkDataArrayTemplateIxE8GetValueEx+0x23) [0xcd7e35]<BR>
[n0:18863] [ 2] ./pvserver(_ZN14vtkIdTypeArray8GetValueEx+0x1d) [0xcd7dc7]<BR>
[n0:18863] [ 3] ./pvserver(_ZN17vtkEnSight6Reader28CreateUnstructuredGridOutputEiPcPKcP20vtkMultiBlockDataSet+0x3761) [0x29fb26d]<BR>
[n0:18863] [ 4] ./pvserver(_ZN17vtkEnSight6Reader16ReadGeometryFileEPKciP20vtkMultiBlockDataSet+0xd10) [0x29f11b8]<BR>
[n0:18863] [ 5] ./pvserver(_ZN16vtkEnSightReader11RequestDataEP14vtkInformationPP20vtkInformationVectorS3_+0x80c) [0x2a2610a]<BR>
[n0:18863] [ 6] ./pvserver(_ZN29vtkMultiBlockDataSetAlgorithm14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x8e) [0x2d12f24]<BR>
[n0:18863] [ 7] ./pvserver(_ZN12vtkExecutive13CallAlgorithmEP14vtkInformationiPP20vtkInformationVectorS3_+0x88) [0x2c88e3c]<BR>
[n0:18863] [ 8] ./pvserver(_ZN23vtkDemandDrivenPipeline11ExecuteDataEP14vtkInformationPP20vtkInformationVectorS3_+0x64) [0x2c83b5e]<BR>
[n0:18863] [ 9] ./pvserver(_ZN24vtkCompositeDataPipeline11ExecuteDataEP14vtkInformationPP20vtkInformationVectorS3_+0x30c) [0x2c688d4]<BR>
[n0:18863] [10] ./pvserver(_ZN23vtkDemandDrivenPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x373) [0x2c83383]<BR>
[n0:18863] [11] ./pvserver(_ZN32vtkStreamingDemandDrivenPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x1be) [0x2d97b96]<BR>
[n0:18863] [12] ./pvserver(_ZN24vtkCompositeDataPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x627) [0x2c6812f]<BR>
[n0:18863] [13] ./pvserver(_ZN23vtkDemandDrivenPipeline10UpdateDataEi+0x27d) [0x2c8398f]<BR>
[n0:18863] [14] ./pvserver(_ZN32vtkStreamingDemandDrivenPipeline6UpdateEi+0xbf) [0x2d97d15]<BR>
[n0:18863] [15] ./pvserver(_ZN12vtkExecutive6UpdateEv+0x38) [0x2c8747a]<BR>
[n0:18863] [16] ./pvserver(_ZN23vtkDemandDrivenPipeline6UpdateEv+0x15) [0x2c83413]<BR>
[n0:18863] [17] ./pvserver(_ZN32vtkStreamingDemandDrivenPipeline6UpdateEv+0x15) [0x2d97c53]<BR>
[n0:18863] [18] ./pvserver(_ZN12vtkAlgorithm6UpdateEv+0x26) [0x2c3d054]<BR>
[n0:18863] [19] ./pvserver(_ZN23vtkGenericEnSightReader11RequestDataEP14vtkInformationPP20vtkInformationVectorS3_+0x124) [0x2a66028]<BR>
[n0:18863] [20] ./pvserver(_ZN29vtkMultiBlockDataSetAlgorithm14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x8e) [0x2d12f24]<BR>
[n0:18863] [21] ./pvserver(_ZN12vtkExecutive13CallAlgorithmEP14vtkInformationiPP20vtkInformationVectorS3_+0x88) [0x2c88e3c]<BR>
[n0:18863] [22] ./pvserver(_ZN23vtkDemandDrivenPipeline11ExecuteDataEP14vtkInformationPP20vtkInformationVectorS3_+0x64) [0x2c83b5e]<BR>
[n0:18863] [23] ./pvserver(_ZN24vtkCompositeDataPipeline11ExecuteDataEP14vtkInformationPP20vtkInformationVectorS3_+0x30c) [0x2c688d4]<BR>
[n0:18863] [24] ./pvserver(_ZN23vtkDemandDrivenPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x373) [0x2c83383]<BR>
[n0:18863] [25] ./pvserver(_ZN32vtkStreamingDemandDrivenPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x1be) [0x2d97b96]<BR>
[n0:18863] [26] ./pvserver(_ZN24vtkCompositeDataPipeline14ProcessRequestEP14vtkInformationPP20vtkInformationVectorS3_+0x627) [0x2c6812f]<BR>
[n0:18863] [27] ./pvserver(_ZN23vtkDemandDrivenPipeline10UpdateDataEi+0x27d) [0x2c8398f]<BR>
[n0:18863] [28] ./pvserver(_ZN32vtkStreamingDemandDrivenPipeline6UpdateEi+0xbf) [0x2d97d15]<BR>
[n0:18863] [29] ./pvserver(_ZN12vtkExecutive6UpdateEv+0x38) [0x2c8747a]<BR>
[n0:18863] *** End of error message ***<BR>
<BR>
[1]+ Stopped /usr/local/openmpi-1.2.4/bin/mpirun -np 18 --x LD_LIBRARY_PATH=/home/raashid/src/lib64/:$LD_LIBRARY_PATH --mca btl ^openib,mvapi -hostfile nodes ./pvserver --use-offscreen-rendering<BR>
[raashid@n0 bin]$ <BR>
<BR>
Due to large size of the ensight file and associated memory related<BR>
issues, I fail to convert it into a vtk-xml Untructured file through a<BR>
simple vtk program by reading the ensight file by vtkEnSight6Reader<BR>
and writring it through vtkXMLUnstructuredGridWriter.<BR>
<BR>
Please suggest me how to over come this problem.
</P>
<br><br>
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