[Paraview] Parallel Data Redistribution

[Berk Geveci]

What is the data type? vtkRedistributePolyData and its subclasses do
this for polydata. It can do load balancing (where you can specify a
weight for each processor) as well.

-berk

On Fri, Dec 11, 2009 at 9:59 AM, Biddiscombe, John A. <biddisco at cscs.ch> wrote:
> I have a filter pipeline which reads N blocks from disk, this works fine on N processors.
>
> I now wish to subdivide those N blocks (using a custom filter) to produce new data which will consist of M blocks - where M >> N.
>
> I wish to run the algorithm on M processors and have the piece information transformed between the two filters (reader -> splitter), so that blocks are distributed correctly. The reader will Read N blocks (leaving M-N processes unoccupied), but the filter which splits them up needs to output a different number of pieces and have the full M processes receiving data.
>
> I have a reasonably good idea of how to implement this, but I'm wondering if any filters already do something similar. I will of course take apart the D3 filter for ideas, but I don't need to do a parallel spatial decomposition since my blocks are already discrete - I just want to redistribute the blocks around and more importantly change the numbers of them between filters.
>
> If anyone can suggest examples which do this already, please do
>
> Thanks
>
> JB
>
> --
> John Biddiscombe,                            email:biddisco @ cscs.ch
> http://www.cscs.ch/
> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82
>
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