For the most part I'm only doing the single-system tests for just that purpose - testing. I don't have a multiple-system setup yet, but I will eventually. I'm designing what's essentially a cave, with a reasonable dataset, so I don't think I need the sort-last windows. In fact it looks like sort-first is the way to go for this application(?). In the end the client won't render anything - It'll do the physics and distribute the scene graph to the various servers to render.
My hope is to be able to develop using the appropriate number of processes, without regards to which system they're actually running on. Barring full screen operation this shouldn't be a problem. Then when it's time to roll things onto multiple platforms, do that then. I guess it's not too bad to test using unicast and then enable multicast when I'm closer to the shipping configuration. Also, as I think through it, it doesn't seem too far-fetched to imagine that multiple processes reading from the same broadcast port may not even be supported at the OS level. Thanks, Chuck -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Alex Allen Sent: Wednesday, April 26, 2006 5:19 PM To: [email protected] Subject: Re: [Opensg-users] Cluster multicast Hi Chuck, In my experience with multicast I have found it to be more of a pain than anything. I try and use StreamSock wherever possible. With that being said, clustering is not made to run all on one machine. The whole idea is to be dividing the work load between multiple systems. Things can certainly get messy when you are running a client and two servers on the same machine. If you want to see the true power of clustering load a large model and have several servers running on separate machines. Also, try using the -LS or -LB options, which will run the test using sort last windows and image compositing. When doing this, parts of the model are divided up between the servers, rendered, and then sent back to the client to be displayed as a whole. Once again though this wont work very well if clusters and servers are all on the same machine. Alex Allen Chuck Bueche wrote: > Thanks Andreas, > > I initially tried using two different systems, one with the client and one with two servers. When that didn't work I went to a > single system. I figured that any network access, including multicast, would get looped back and be transparent, even if on the > same machine. I've had the same results regardless of the configuration. :-( > > Chuck > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Andreas Zieringer > Sent: Wednesday, April 26, 2006 12:49 PM > To: [email protected] > Subject: Re: [Opensg-users] Cluster multicast > > Hi Chuck, > > did you start the clients and servers on one machine? This > doesn't work > with multicast also makes not much sense. To do multicast you need > several computers in a network. > > Andreas > > > Has anyone had recent experience using multicast with a > cluster? I'm slogging through the emails and seeing lots of positive > > comments about clustering performance, but I'm not seeing > it on my system. > > > > I'm running on Windows XP Pro with the latest OpenSG > sources, built with Studio 2005 (argh!), and just trying to > run the cluster > > test programs. Running 1 testClusterClient and 2 > testClusterServer's, things seem to work fine using the > default connection > > (StreamSock). When I enable multicast all around, I can > move the default torus for about 2 seconds before the system > locks up. > > > > In different DOS consoles, I'm executing: > > testClusterClient -m -M -g640,240,320,600 Server1 Server2 > > testClusterServer -m -e -w -g640,480,0,0 Server1 > > testClusterServer -m -e -w -g640,480,640,0 Server2 > > > > I've seen comments that once sync is lost with the data > stream, hope is lost for the cluster. Has this been > addressed and I'm > > missing it somehow? > > > > Dirk posted a link to some comments on the cluster tests > way back in 2002 on geocities, but it's now dead. If > there's someone out > > there who's knowledgeable about the project and would like > to work this through, I'm available to help. I'm not familiar enough > > with the innards of the system to do it on my own, though > (...yet ;-) ). > > > > Also, is there an explanation for testClusterASyncServer somewhere? > > > > Thanks, > > Chuck Bueche > > > > > > > > ------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web > services, security? > > Get stuff done quickly with pre-integrated technology to > make your job easier > > Download IBM WebSphere Application Server v.1.0.1 based on > Apache Geronimo > > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057 > &dat=121642 > > _______________________________________________ > > Opensg-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/opensg-users > > > > > > > > ------------------------------------------------------- > Using Tomcat but need to do more? Need to support web > services, security? > Get stuff done quickly with pre-integrated technology to > make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on > Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057 > &dat=121642 > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users > > > > ------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057 &dat=121642 > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users > > > > ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057 &dat=121642 _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
