Hi,

> 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.

multicast works fine with OpenSG. Most problems came form wrong configured
networks. Some problems are:

try to set OSG_LOGLEVEL to debug and run clients and servers.

Marcus

>
> 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

What does -M?

> testClusterServer -m -e -w -g640,480,0,0 Server1
> testClusterServer -m -e -w -g640,480,640,0 Server2

Remove the -m option. The client defines the kind of network connection.

>
> 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?
>

It was a test to do frame parallel renering on a ES machine. I'm not sure
if it is still usable. I wouldn't use it.

Marcus



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