Dear Stefan, I have tried Equalizer's eVolve volume renderer to render a 1kx1kx2k, ubyte volume over a remote 8-node cluster. I have changed the evolve code and shader to read in the original volume with one byte per voxel, and it all worked fine. My cluster has a Nvidia GeForce-9500 card with 1G memory on each node, and infiband private network among the nodes. I used direct send compound. Each node get 1kx1kx256 subvolume. Each node renders the 256M volume locally at 16-20fps. When I used 4nodes to render the 1G volume, the overall performance is about 10-12 fps. But when I used 8nodes to render the whole 2G volume, the frame rate drops down to 2fps. I have tried to use both DB and direct send compound, with ethernet and IB network, it's all very consistent 2fps performance. Are there something I can do to improve the performance? Thanks a lot!
Jinghua http://n2.nabble.com/file/n2335264/test-8node.res.infi test-8node.res.infi Attached is my config file. -- View this message in context: http://n2.nabble.com/eVolve-render-2G-volume-on-8nodes-at-2fps-tp2335264p2335264.html Sent from the Equalizer - Parallel Rendering mailing list archive at Nabble.com. _______________________________________________ eq-dev mailing list [email protected] http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev http://www.equalizergraphics.com
