[Paraview] Catalyst question

[Biddiscombe, John A.]

Andy

I appear to be suffering from a confusion of what the catalyst framework does - or how it is used ...

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?

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<mailto: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://cscs.ch>
http://www.cscs.ch/
CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07<tel:%2B41%20%2891%29%20610.82.07>
Via Trevano 131, 6900 Lugano, Switzerland   | Fax:  +41 (91) 610.82.82<tel:%2B41%20%2891%29%20610.82.82>


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