Hi John, I'll be at SC14 and I'd be interested in seeing your demo. Are the details of when and where ready yet?
Regards, Andy On Thu, Oct 16, 2014 at 10:43 AM, Biddiscombe, John A. <[email protected]> wrote: > Andy, Dan > > > > Thank you both for clarifying this. I might give the > catalyst->server->client version a go, but it seems like it might be too > much trouble ... > > I expect I’ll just use the solution we developed here at CSCS a couple of > years ago where we just connect the simulation to the pvservers and then > connect the client to them. That way I won’t need to copy the data between > processes again (there is already a copy because the simulation is writing > to a shared memory buffer and the pvservers would read from that - not the > same as the H5FDdsm stuff we developed, but very similar, and I can simply > piggy back our live viz on top of that). > > > > We wanted to do a live demo of GPU rendering on 1024 or so nodes at SC14 > so it may be that using something I’m already familiar with will save me > time as were getting close to Nov ... > > > > On that note : It ought to be trivial to whip up a catalyst “view” which > captures the images from the internal renderwindow created by catalyst and > have them displayed in the GUI so that the user can see the ‘live’ viz. Not > sure how you’d pass the interactions back to handle mouse etc, but if the > client can write to the camera objects via proxies then it should be > possible .... might try this myself if I have a moment spare. > > > > thanks again > > > > JB > > > > *From:* Dan Lipsa [mailto:[email protected]] > *Sent:* 16 October 2014 16:32 > *To:* Biddiscombe, John A. > *Cc:* Andy Bauer; [email protected] > > *Subject:* Re: [Paraview] Catalyst question > > > > 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:[email protected]] > *Sent:* 26 August 2014 15:34 > *To:* Biddiscombe, John A. > *Cc:* [email protected] > *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. <[email protected]> > 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 > > > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > > > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > > >
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