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Hi all,<BR><BR>I'm doing parallel rendering using 1 client (dual core laptop) and 2 cluster servers (dual core desktop)<BR>below is the timer log result i collected when i run using np4<BR><BR>-----------------------------------------------------------------------------------------------<BR>Local Process<BR>Still Render, 3.029 seconds<BR>Execute vtkMPIMoveData id: 457, 1.98248 seconds<BR><BR><BR>Server, Process 0<BR>Execute vtkFileSeriesReader id: 176, 0.637821 seconds<BR>Execute vtkMPIMoveData id: 457, 1.49186 seconds<BR>Dataserver gathering to 0, 0.829525 seconds<BR>Dataserver sending to client, 0.661658 seconds<BR><BR>Server, Process 1<BR>Execute vtkMPIMoveData id: 457, 0.141821 seconds<BR>Dataserver gathering to 0, 0.141544 seconds<BR><BR>Server, Process 2<BR>Execute vtkMPIMoveData id: 457, 0.243584 seconds<BR>Dataserver gathering to 0, 0.243318 seconds<BR><BR>Server, Process 3<BR>Execute vtkMPIMoveData id: 457, 0.191589 seconds<BR>Dataserver gathering to 0, 0.191303 seconds<BR>
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I notice a relatively 'slow' rendering performance, so i wonder how the results are gathered back and rendered.<BR>
<BR>
Case 1,<BR>
each process extracts the polygonal data, then send it back to process 0. <BR>
process 0 gather all results, combine with its own, create the final images, then send it to the client<BR>
so process 0 is like the one gathering the jig saw puzzle and fixing them, then give the whole thing for the client to render<BR>
<BR>
Case 2,<BR>
each process extracts the polygonal data, then send it back to process 0. <BR>
process 0 gather all results, then send it to the client, <BR>
the client creates a final image out of pieces of result collected from process 0<BR>
so client is the one getting the jig saw puzzle from process 0, fix them and render it<BR>
<BR>
<BR>
i'm not sure which case is right or both are wrong, but i do suspect that it will somehow effect the performance because my client has a lower specification compare to the server.<BR>
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Any help / reply is highly appreciated!<BR>
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Regards,<BR>
chewping<BR>
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