[Paraview] Catalyst question

[Andy Bauer]

Hi Dan,

Thanks for the correction -- I should have read your post closer!

Thanks,
Andy

On Thu, Oct 16, 2014 at 10:32 AM, Dan Lipsa <dan.lipsa at kitware.com> wrote:

> Hi John,
>
> I had imagined that I’d run a simulation on N ranks, have catalyst bound
>> to them and be able to do vis on those N ranks. But in fact, when I connect
>> to a live simulation, I have to “extract” results from them and then render
>> them back on the client.
>>
>>
>>
>> Is this the case or did I miss something?
>>
>
> Just to confirm Andy's answer, you can do the rendering on a separate
> ParaView server (pvserver), which can be the same as the server you run the
> simulation on. Catalyst will send extracts to this server which will render
> them.
> Only images will be send back to the client.
>
> We show that use case at the end of our article.
>
> http://www.kitware.com/blog/home/post/722
>
> Dan
>
>
>
>
>>
>>
>> The parallel image generation appears to work as advertised, but the
>> images go off to disk and not to the renderwindow. Is there a way on
>> configuring it so that I can see the actual rendering taking place in the
>> renderview? I wanted to display the contents of a custom render plugin
>> using cuda based rendering on many GPUs and be able to interact with it,
>> but I am obviously missing something in my setup.
>>
>>
>>
>> thanks
>>
>>
>>
>> JB
>>
>>
>>
>> *From:* Andy Bauer [mailto:andy.bauer at kitware.com]
>> *Sent:* 26 August 2014 15:34
>> *To:* Biddiscombe, John A.
>> *Cc:* paraview at paraview.org
>> *Subject:* Re: [Paraview] Catalyst question
>>
>>
>>
>> Hi John,
>>
>>
>> This live capability is now available and recently has been cleaned up
>> quite a bit. There are still a couple more small changes that are waiting a
>> code review process before they go into the master branch. The user's guide
>> needs an update for a bunch of new information (live, catalyst editions,
>> zero-copy arrays) that's important for Catalyst. We're also doing some
>> preliminary testing with a newly developed ADIOS writer for better IO
>> performance as well.
>>
>>  Getting back to the live viz stuff, when you create a Catalyst Python
>> script and export it using the wizard you'll have the option to enable live
>> viz (it's the same wizard page as the screenshot output specification).
>> Then, while your simulation is running use the Catalyst->Connect option to
>> connect. There are two tests (pv.CatalystLiveSetBreakpoint and
>> pvcs.CatalystLiveSetBreakpoint) that demonstrate the newly implemented live
>> functionality which now includes the option to set a breakpoint in the
>> simulation.
>>
>> If you get a chance to try it out, let me know what you think.
>>
>> Andy
>>
>>
>>
>> On Tue, Aug 26, 2014 at 3:40 AM, Biddiscombe, John A. <biddisco at cscs.ch>
>> wrote:
>>
>> Dear Catalyst people
>>
>>
>>
>> I dragged out an old simulation demo I created some time ago and got it
>> working with paraview/catalyst from git master branch - my plan was to test
>> a live visualization of the simulation with the paraview GUI connected to
>> the simulation. I had thought this capability was now possible, but I have
>> not been following development closely and it looks like I was mistaken.
>>
>>
>>
>> Is it possible to visualize the simulation live - rather than just
>> generate images (which works fine). (I had a quick skim through the user
>> manual, but didn’t see this feature mentioned).
>>
>>
>>
>> Thanks
>>
>>
>>
>> JB
>>
>>
>>
>> --
>>
>> John Biddiscombe,                        email:biddisco @.at.@ cscs.ch
>>
>> http://www.cscs.ch/
>>
>> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
>>
>> Via Trevano 131, 6900 Lugano, Switzerland   | Fax:  +41 (91) 610.82.82
>>
>>
>>
>>
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