Hi, I have a distinct impression I already asked this question, but I can't find it in the archives. Apologies, if I am repeating myself.
I am working on a cluster which has multiple GPUs per node 4-6 to be more precise. I got PV to work with EGL backend and in a client server mode and it's been a really good experience so far but one always wants more... It seems to me that I am using only one GPU even if I am running in parallel. I am looking for some advice here. I am using this website as a reference https://www.paraview.org/Wiki/Setting_up_a_ParaView_Server#Multiple_GPUs_Per_Node and I am using OpenMPI to do my MPI. # 1. This works for me but is using a single GPU mpirun -report-bindings -map-by core -bind-to core \ -np 20 pvserver -sp=22221 --disable-xdisplay-test # 2. This probably doesn't work, but I am not sure... mpirun -report-bindings -map-by core -bind-to core \ -np 10 pvserver -sp=22221 --disable-xdisplay-test --egl-device-index=0 : \ -np 10 pvserver -disable-xdisplay-test --egl-device-index=1 General question. Is it ok to drop -display option with EGL? With option 1. I am afraid that the process are spread out across both sockets and I think there may be a slight communication overhead between processes on one socket and the GPU plugged in on another one, but perhaps I am being paranoid. How can I measure this? With option 2: am I just abusing the syntax or this the right way to do it? nvidia-smi tells me I am using two GPUs now. How to make sure that the processes talking to an nth GPU are on bound to the right socket? Is single -sp option correct there? And perhaps a silly general question. How can I make a fair benchmark of this? Best wishes, Robert -- Ghosts of the upper atmosphere https://www.youtube.com/watch?v=D7mqs6fng7o Reference: https://en.wikipedia.org/wiki/Upper-atmospheric_lightning _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: https://public.kitware.com/mailman/listinfo/paraview