[Paraview] Potential Memory Error in CAVE mode

[Aashish Chaudhary]

Faiz,

Can you remind us about your setup again so that we can see if something
can be done to reduce per rank memory requirements? Also, I am assuming the
current setup works if the data is small?



On Wed, Mar 15, 2017 at 10:47 AM Utkarsh Ayachit <
utkarsh.ayachit at kitware.com> wrote:

> You may indeed be running into a limitation of current implementation.
> To support fast rendering requirements for CAVE, ParaView duplicates
> geometry between all rendering ranks. Seems like you're running out of
> memory during that process.
>
> On Mon, Mar 13, 2017 at 3:10 PM, Faiz Abidi <fabidi89 at vt.edu> wrote:
> > Hi again community!
> >
> > I have been testing Paraview 5.2.0 in a CAVE mode with pretty big data
> (1+
> > billion points) while remotely connected to some HPC servers.
> >
> > PROBLEM: In CAVE mode, I get the below error when I try to change mode
> from
> > "Outline" to "Points". Same issue while doing other things as well like
> > applying a Glyph (Sphere), etc.
> >
> > ERROR: terminate called after throwing an instance of 'std::bad_alloc'
> > what():  std::bad_alloc
> >
> > The same issue doesn't occur if I don't use the CAVE mode in that I
> simple
> > connect a Paraview client with the HPC servers and don't pass any pvx
> file.
> >
> > I read some similar online discussions pointing towards memory issues but
> > it's hard for me to believe that given  a) I have hundreds of gigs of
> memory
> > and most of it remains empty even with my big data loaded, b) the issue
> > doesn't occur when not in a CAVE mode.
> >
> > Anyone experienced any such similar issues?
> >
> > Thanks for all the help!
> > --
> > Faiz Abidi | Master's Student at Virginia Tech | www.faizabidi.com |
> > +1-540-998-6636 <(540)%20998-6636>
> >
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