[Paraview] Correctly Parallel Processing of OpenFoam results using pvserver

[Leonard Cassady]

Hi,

  I didn't realize that there are 2 different extensions for OpenFOAM
projects.  I also didn't realize that Paraview had a native OpenFoam
reader.  What functionality (normally supplied by OpenFOAM paraFoam ) is
lost when using Paraview without starting with paraFoam?  I'm asking
because I've heard that ParaView 4.4 is extremely fast and would like to
test it out with OpenFoam files but not paraFoam.

Thanks

On Thu, Oct 1, 2015 at 7:44 PM, <ronald.fowler at stfc.ac.uk> wrote:

> 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
>



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