Hi Massimiliano, I don't think the XML unstructured grid reader partitions the data so all of your cells are probably just ending up on process 0.
You may want to look at ParaView's spatio-temporal parallelism ( http://www.paraview.org/Wiki/Spatio-Temporal_Parallelism). Make sure to use a time compartment size of 1 if you're just using the XML unstructured grid reader. Regards, Andy On Sat, Apr 18, 2015 at 6:40 AM, Massimiliano Leoni < [email protected]> wrote: > Hi everybody, > > > > I am trying to run pvbatch in parallel to render an animation, with a very > easy script that looks like > > - import sys > - from paraview.simple import * > - > - # read pvsm file from command line and load it > - stateFile = sys.argv[1] > - simulation = stateFile.split("/")[-1].split(".")[0] > - servermanager.LoadState(stateFile) > - > - # set active view and render animation > - SetActiveView(GetRenderView()) > - WriteAnimation(simulation + ".jpg",magnification=2,quality=2) > > I compiled paraview from sources, configuring with > > cmake -DPARAVIEW_BUILD_QT=OFF -DCMAKE_BUILD_TYPE=Release > -DBUILD_TESTING=OFF -DPARAVIEW_ENABLE_PYTHON=ON -DPARAVIEW_USE_MPI=ON .. > > and then building all. > > I am doing a benchmark on 11GB of data distributed over many pvd/vtu files > [written by an MPI application in parallel]. > > I copied the data to a tmpfs folder to ensure the execution is not slowed > down by disk access. > > Executing pvbatch on 1 or 16 processors doesn't really seem to change > anything. > In particular, I was expecting to see the frames appearing in blocks of 16 > when running with mpi on 16 procs, but they always appear one at a time at > a constant pace, which makes me suspect that the other processes aren't > really contributing to the rendering. > > > > What could I be doing wrong? > Any suggestion is highly appreciated. > > Best regards, > > Massimiliano > > _______________________________________________ > 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: > http://public.kitware.com/mailman/listinfo/paraview > >
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