Hi Akilan, On Fri, Jun 3, 2011 at 6:27 AM, Akilan Thangamani <[email protected]> wrote: > I am rendering textures on 8 graphics cards, each connected to one monitor. > The cards, ATI Firestream 9250 series, are connected to system through PCI > extension slots. > If I set CullDrawThreadPerContext to composite viewer, the application > crashes down. > Its working with SingleThreaded Model, by default, fine. How to set > multithreading to my application?
It sounds like you already know how to set the threading model... viewer.setThreadingModel(threadingModel). Could it be that you are asking how to run your application, on your OS, on your hardware muili-threaded without any problems? Now the OSG should work out of the box multi-threaded on multiple contexts just with setting the threading model, there are a few constraints to how you go about modifying the scene graph - i.e. just update the scene graph in the update and event traversals, but other than this you should be fine. Are you modifying the scene graph? If so when and how are you doing it? The other area one should look at is the OS drivers, hardware and memory consumption. There really isn't much others can do to help you here as it's you personal setup that is going wrong and the problems can be any of the above issues and more besides, all of these issues will be particular to your setup and given how little information you've provide there is really nothing more we can do apart from tell you to go testing things yourself. As with any crash start using a debugger, post the stack trace. Also be methodical - try two graphics cards and two threads, then step it up, is that a pattern with the crashes? What's happening with memory consumption as you using more cards? What OS, drivers, did you build the OSG yourself. I must admit it's frustrating to keep asking these basic types of questions - you should strive to provide the information for others to help you, remember we aren't sitting next to you when the problems are happening. Before you post re-read your post from the perspective of a 3rd party who knows nothing about what system you have and what the problem you have is. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
