In brief, the cells of the data are distributed amongst the processes, and each process runs your algorithm on its local piece. Algorithms that perform per-cell or per-point operations usually work without any communication (assuming the request and receive any necessary ghost cells).
You can read more in Chapter 13 of the ParaView book or in the latest SC tutorial that is posted on the ParaView Wiki. -Ken On 3/4/09 8:26 AM, "Natalie Happenhofer" <[email protected]> wrote: Hi! I´m not sure if I understood well how Paraview is working in parallel mode: I have started Paraview in client/server mode, i.e. with mpirun -np 8 ./pvserver and then I started the client and connected. I´m not sure how this works with filters: I´ve written a few filters, and when I run Paraview in parallel, is the filter parallelized as well, automatically? That on every piece of data the filter is applied separately and necessary data of other pieces is send there by mpi? Or is the filter computed on a single node and I have to change something in order to make it work parallel? Applying the ProcessId-Filter on the output of my filter, it says that it was computed separately on every piece of dataset, I´m just wondering, because the filter uses the whole dataset to compute the desired output.. thx for explaining, Natalie ________________________________ Hay un nuevo Messenger que tienes que conocer... ¡Mira las novedades! <http://www.nuevomessenger2009.com/> **** Kenneth Moreland *** Sandia National Laboratories *********** *** *** *** email: [email protected] ** *** ** phone: (505) 844-8919 *** web: http://www.cs.unm.edu/~kmorel
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