[Paraview] Rendering in parallel

[Jérémy Santina]

Actually, I did try the D3 filter but I didn't really see any better
results. Maybe it is because I don't know how to configure it. How does D3
filter work ?



2014-06-30 16:21 GMT+02:00 Moreland, Kenneth <kmorel at sandia.gov>:

>   Jeremy,
>
>  Like the other parallel processing in ParaView, the efficiency is
> dictated by the distribution of the data. If your data distribution is
> highly imbalanced such as when all the data is on one process as in your
> case, then all the processing will happen where the data is and the rest of
> the processors will remain idle.
>
>  You could try running the D3 filter. That should redistribute the point
> data more evenly.
>
>  -Ken
>
>   From: Jérémy Santina <jeremy.santina at gmail.com>
> Date: Monday, June 30, 2014 2:55 AM
> To: "paraview at paraview.org" <paraview at paraview.org>
> Subject: [EXTERNAL] [Paraview] Rendering in parallel
>
>    Good morning,
>
>  I am a novice user of Paraview and there are some aspects which I am not
> familiar with. Here is one of the issues I am having :
>
> I run Paraview in Client-Server mode, performing the data processing and
> the rendering on the remote server, and I read a Tecplot Binary File (.plt)
> composed of more than 30 millions of points. This take a lot of time. An
> idea to speed up the calculation is to launch the server in parallel. I
> know that many readers can not read in parallel (it is the case of
> TecplotBinaryFileReader I think) so I don't expect any improvment in this
> way.
>
> But, examining the Timer Log, I noticed that it doesn't speed up the
> rendering either. I tested many times displaying the points and both
> experiment with parallelism and without gave the same results (about 40-50
> sec). I don't understand why.
>
>  Do I misinterpret the Timer Log ? Is the time of rendering long enough
> to conclude ? Do I have to set specific parameters to make it works ?
>
>  I thank you in advance for your help.
>
>  Jérémy
>
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