[Paraview] parallel processing in volume rendering and Merge Blocks filter ...

[Ufuk Utku Turuncoglu (BE)]

Hi Andy,

Thanks for the clarification. One minor question, after applying Merge 
Blocks is it still processing in serial mode or can i use MPI to improve 
the performance? By the way, i am also using NVIDIA Index plugin. I 
think that it supports parallel rendering but again not for multi block 
dataset. Right?

Regards,

--ufuk

On 20/09/2017 22:12, Andy Bauer wrote:
> Hi Ufuk,
>
> ParaView doesn't currently support volume rendering of multiblock 
> datasets, even in serial, so using the Merge Blocks filter is probably 
> the best way to do any volume rendering of your dataset.
>
> Cheers,
> Andy
>
> On Wed, Sep 20, 2017 at 2:45 PM, Ufuk Turuncoglu 
> <u.utku.turuncoglu at be.itu.edu.tr 
> <mailto:u.utku.turuncoglu at be.itu.edu.tr>> wrote:
>
>     Hi,
>
>     I am trying to perform volume rendering (VR) using multi-block +
>     multi-piece dataset. In this case, the data file has single block
>     that contains multiple piece (created by MPI parallel simulation
>     code) and it is in structured grid. When I try to use volume
>     rendering with raw data, it creates empty output but if I use
>     Merge Block filter before using volume rendering, it works without
>     any problem. So, I have to use Merge Blocks to perform VR. At this
>     point, I just wonder that is it typical behaviour of ParaView for
>     multi-block + multi-piece datasets? Is it still possible to
>     perform VR in parallel if I had a multiple core (such as enabling
>     Auto MPI from the settings)? If not is there any way to
>     re-structure the data to perform more efficient rendering?
>
>     Best Regards,
>
>     --ufuk
>
>
>
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