[Paraview] Correctly Parallel Processing of OpenFoam results using pvserver

ronald.fowler at stfc.ac.uk ronald.fowler at stfc.ac.uk
Thu Oct 1 20:44:56 EDT 2015


Hi,
It is simple to create a .foam file; just do "touch xxx.foam" in the working directory. Then point ParaView at that file and it will use the builtin openFoam reader which should offer the reconstructed/decomposed option. The empty file just tells ParaView which reader to use based on the extension.
Ron


________________________________
From: ParaView [paraview-bounces at paraview.org] on behalf of Leonard Cassady [lenny at intuitivemachines.com]
Sent: 30 September 2015 21:50
To: David E DeMarle
Cc: paraview at paraview.org
Subject: Re: [Paraview] Correctly Parallel Processing of OpenFoam results using pvserver

David,

   I do not have a chooser for "case type".  I found a web page that shows the "case type" chooser.  They were opening a .foam file.  I have .OpenFOAM case.

   Should I consider converting the foam to VTK?



On Wed, Sep 30, 2015 at 2:59 PM, David E DeMarle <dave.demarle at kitware.com<mailto:dave.demarle at kitware.com>> wrote:
Looping the list back in to the thread.

Look on the properties panel when you open the file and before you hit "Apply" look for a chooser for "Case Type". The default is "Reconstructed Case" so change it to "Decomposed Case".


David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909<tel:518-881-4909>

On Wed, Sep 30, 2015 at 3:51 PM, Leonard Cassady <lenny at intuitivemachines.com<mailto:lenny at intuitivemachines.com>> wrote:
Dave,

I don't know how to switch to decomposed type.

Thanks,


On Wed, Sep 30, 2015 at 2:47 PM, David E DeMarle <dave.demarle at kitware.com<mailto:dave.demarle at kitware.com>> wrote:
As I recall, reconstructed means that the root node does all the work. Switch to decomposed type in the reader and let us know how it works then.

thanks



David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909<tel:518-881-4909>

On Wed, Sep 30, 2015 at 3:35 PM, Leonard Cassady <lenny at intuitivemachines.com<mailto:lenny at intuitivemachines.com>> wrote:
I'm attempting to use pvserver to accelerate the post-processing of my openfoam solution. I have a 48 core machine. I have correctly installed and compiled a parallel copy of paraview 4.1.0 with OpenFOAM 2.4.x. If I open a simple .obj file I can see that different parts of the surface are rendered using different processors. I can also see that the memory is shared among the parallel processes.

When I open a reconstructed openFOAM solution with 20 million cells with paraview connected to 40 process pvserver, the image seems to be rendered (or processed) with only 1 processor. Is there a step that I'm missing to parallelize the reconstructed Openfoam data files for rendering?

--
Leonard Cassady PhD
Senior Development Engineer
Intuitive Machines
Cell: 281-755-2553<tel:281-755-2553>

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--
Leonard Cassady PhD
Senior Development Engineer
Intuitive Machines
Cell: 281-755-2553<tel:281-755-2553>




--
Leonard Cassady PhD
Senior Development Engineer
Intuitive Machines
Cell: 281-755-2553


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