<P>
I am a newbie to parallel visualization and ParaView in general and I<BR>
am some very basic problems with ParaView.<BR>
<BR>
I am using ParaView2.6.X and trying to do performance analysis with<BR>
increasing dataset on ParaView as a part of an academic project. I<BR>
want to see what are the gains in CPU & memory usage and time required<BR>
to render a particular dataset when ParaView is runs in parallel. All<BR>
machines have Intel Core Duo 2, 2GB DDR2 RAM, and 2GB swap, NVidia 7series graphics cards and work on Debian/Ubuntu Linux.<BR>
<BR>
I have structured data-sets with point attributes in form of VTK-XML<BR>
files (*.vts). When I run paraview in stand-alone mode on a single machine, I am able to draw glyph at each point of the data sets upto 1.5 million grid points. But when I put the same VTK XML files on 3 different computers (all have ParaView 2.6.X installed) and run ParaView through LAM/MPI in client-server mode where server is running on 2 computers and the client is running on another computer, performance decreases drastically. Not only does the time taken to render final image, cpu and memory usage increase, I am only able to dram glyps till 0.5 million grid points. After 0.5 million point the get an error (this particular error is for a dataset of 0.5 million) :<BR>
<BR>
on client :<BR>
<BR>
---------------------------------------------------------------------------------<BR>
raashid@ged:~/src/cvs/paraview-unix-new/bin$ ./pvclient --server-host=10.101.11.72<BR>
Connected to server<BR>
ErrorMessage<BR>
# Error or warning: There was a VTK Error in file: /home/raashid/src/cvs/ParaView/Servers/Common/vtkProcessModule.cxx (1171)<BR>
vtkProcessModule (0xc0c7530): Received exception from server: Insufficient memory exception.<BR>
ErrorMessage end<BR>
ErrorMessage<BR>
# Error or warning: There was a VTK Error in file: /home/raashid/src/cvs/ParaView/Servers/Common/vtkServerConnection.cxx (67)<BR>
vtkServerConnection (0xc0ee1b8): Server Connection Closed!<BR>
ErrorMessage end<BR>
---------------------------------------------------------------------------------<BR>
<BR>
on master node of the server I get the following error message :<BR>
<BR>
raashid@ender:~/src/cvs/paraview-unix-new/bin$ mpirun -np 2 ./pvserver --use-offscreen-rendering<BR>
Listen on port: 11111<BR>
Waiting for client...<BR>
Client connected.<BR>
Process id: 0 >> ERROR: In /home/raashid/src/cvs/ParaView/VTK/Common/vtkDataArrayTemplate.txx, line 95<BR>
vtkFloatArray (0xad19b48): Unable to allocate 46593000 elements of size 4 bytes.<BR>
<BR>
Process id: 0 >> ERROR: In /home/raashid/src/cvs/ParaView/Servers/Common/vtkProcessModule.cxx, line 1187<BR>
vtkProcessModule (0xa7f14c8): Exception: Insufficient memory exception.<BR>
<BR>
Am I using the wrong file type, if yes what should I use ? <BR>
I have not changed any LOD parameters. Is there some threshold limit I<BR>
am violating ? <BR>
</P>
<br><br>
<Table border=0 Width=644 Height=57 cellspacing=0 cellpadding=0 style='font-family:Verdana;font-size:11px;line-height:15px;'><TR><td><a href='http://adworks.rediff.com/cgi-bin/AdWorks/click.cgi/www.rediff.com/signature-home.htm/1050715198@Middle5/1236533_1230311/1276266/1?PARTNER=3&OAS_QUERY=null target=new '><img src =http://imadworks.rediff.com/cgi-bin/AdWorks/adimage.cgi/1236533_1230311/creative_1276266.gif alt='search' border=0></a></td></TR></Table>