[Paraview-developers] accelerate ParaView graphics rendering speed

[Chiranjib Sur]

Hi Aron,
Ofcourse, this helps!

I am trying to compile PV5.2 with the OSPray module (dependent on Mesa
libraries) and I am learning while I struggle to make it work.

No my HDD is not a SSD but it's a NFS mounted drive. I am not so bothered
about the I/O speed at this moment, but I sincerely hope that upgrading to
a newer version of PV will accelerate the rendering.

BTW, I have asked this question before in the forum. Is there any
implementation in PV in newer version which taken care some Qt
functionality using a background thread without making the GUI frozen. What
I mean, while I add some functionality to some button and press it to do
some operation, it always runs on the foreground and at that time
(operation is in progress), I can't use other PV functionalities. Has
anything changed in the newer version of PV?

Thanks again.
Kind regards,
Chiranjib



On Tue, Apr 11, 2017 at 7:44 PM, Aron Helser <aron.helser at kitware.com>
wrote:

> Hi Chiranjib,
> The 'legacy rendering backend' is referring to OpenGL 1.X support, which
> is still hardware accelerated. However, you will probably get better
> performance with the OpenGL 2 backend, which became the default in ParaView
> 5.2+. Can you upgrade?
>
> On Linux, you also may have to take some extra steps to install graphics
> drivers appropriate to your graphics card. If you can install those drivers
> and confirm they are working, ParaView will use them automatically.
>
> Loading time for a large file, 5 Gb, is determined largely by the speed of
> the disk it is stored on. If you want to speed that up, have you tried an
> SSD?
> Hope this helps,
> Aron
>
> On Tue, Apr 11, 2017 at 6:45 AM, Chiranjib Sur <sur.chiranjib at gmail.com>
> wrote:
>
>> Hi,
>> Can anyone tell me what are the settings I need to use to execute
>> ParaView using accelerated graphics?
>>
>> I have build ParaView in Linux and the runtime says (OpenGL driver is
>> enabled)
>>
>> [image: Inline image 1]
>>
>> I observe that the application takes significant amount of time while
>> loading large files (~5 GB).
>>
>> Is there any settings I need to configure for accelerated rendering?
>>
>> Thanks in advance!
>>
>> Chiranjib
>>
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