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
>
>
>
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-------------------------------------------------------
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