[Paraview] Tiling configuration?

[Berk Geveci]

This is the first mpi implementation that does not use the same order
the user specifies. As far as I know, this can't be done in the
configuration file, sorry. I don't even know if Ice-T lets one do
this. If it does, adding something to the configuration file wouldn't
be too hard.

On 5/24/05, Phillip Ezolt (exchange) <Phillip.Ezolt at hp.com> wrote:
> Amy & Berk,
> 
> > The first machine in the list you pass to MPI is used as the upper
> > left  tile.  Subsequent machines fill in a single row, and then the
> > rows are
> > filled from top to bottom.  For your 2 x 2 tiled display to give the
> > appropriate results, the machines should be controlling the tiles as shown
> > below:
> 
> This mapping can not be changed within a configuration file?
> 
> Something like (which would reverse the order of the tiles):
> 
> mpi_node_id     tile_id
> -----------------------
> 0                  3
> 1                  2
> 2                  1
> 3                  0
> 
> ...
> 
> It looks like if I can whip my MPI job launch into shape, I can work
> around this. (I am by no means an MPI expect, and I am looking into how
> to solve this.)  I haven't yet figured out how to use mpirun to specify
> the exact order of nodes...  When I reverse list,
> (tigger6,tigger5,tigger4,tigger3) the MPI ranks are the same as when I
> launch it with (tigger3,tigger4,tigger5,tigger6).
> 
> In any event, I was hoping that we could use paraview to set the tile
> layout.  However, it looks like I have to make mpirun put the correct
> MPI ranks on the proper display tiles.   I'll attack that.
> 
> Thanks for the help,
> --Phil
> 
> On Tue, 2005-05-24 at 14:09 -0400, Amy Squillacote wrote:
> > Hi Phil,
> >
> > Which machines are displaying their results on which tile?
> >
> > The first machine in the list you pass to MPI is used as the upper left
> > tile.  Subsequent machines fill in a single row, and then the rows are
> > filled from top to bottom.  For your 2 x 2 tiled display to give the
> > appropriate results, the machines should be controlling the tiles as shown
> > below:
> >
> > tigger3 tigger4
> > tigger5 tigger6
> >
> > This issue is the same regardless of whether you use a .pvx file.
> >
> > - Amy
> >
> > At 01:49 PM 5/24/2005, Phillip Ezolt wrote:
> > >Hi,
> > >         I have a 2x2 tile display that I want to tile paraview (v2.0.1)
> > >across.
> > >
> > >I am running in client/server mode, with 4 servers running in an MPI job
> > >within a cluster, and a single client running outside the cluster.
> > >
> > >Servers are launched with the following:
> > >
> > >/opt/hpmpi/bin/mpirun -e DISPLAY=:0 -srun -w
> > >"tigger3,tigger4,tigger5,tigger6" pvserver -rc --client-host=catan -
> > >tdx=2 -tdy=2
> > >
> > >The client is launched with the following:
> > >env PV_SEPERATE_RENDER_WINDOW=1 ./pvclient --reverse-connection -tdx=2 -
> > >tdy=2
> > >
> > >Visualization works fine, but, unfortunately, the tile order is messed
> > >up. The visualization on each of the tiles looks right, but the
> > >tiles are in the completely wrong order. (It kinda looks like a messed-
> > >up sliding-block puzzle. )
> > >
> > >How do I tell paraview the layout of tiles?
> > >
> > >I've seen some reference to a pvx file, but it is not documented (that I
> > >could find) in the book.
> > >
> > >Any help is greatly appreciated.
> > >
> > >Thanks,
> > >--Phil
> > >--
> > >Phillip Ezolt <Phillip.Ezolt at hp.com>
> > >
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