Hello all,
I experienced the same problems with starting two multicast servers on one machine but it works fine with using Unicast/WinSock (-p option in the 12/13 tutorials). However, if I start only one server on the machine with Multicast and with Unicast (Using the clusterwindow with only on window) I find that the Unicast version is much slower ......
Is there a workaround or is this a constraint I have to accept. The reason why I want to start two servers on one machine is, that I have two graphics boards (and four processor cores).... but OK. If its not possible I have to accept it.
Kind regards
Bjoern Zehner
----- Ursprüngliche Nachricht -----
Von: Chuck Bueche <[EMAIL PROTECTED]>
Datum: Donnerstag, April 27, 2006 5:09 am
Betreff: RE: [Opensg-users] Cluster multicast
An: [email protected]
> 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
>
----- Ursprüngliche Nachricht -----
Von: Chuck Bueche <[EMAIL PROTECTED]>
Datum: Donnerstag, April 27, 2006 5:09 am
Betreff: RE: [Opensg-users] Cluster multicast
An: [email protected]
> 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
>
-------------------------------------------------------------------------
Dr. Bjoern Zehner
UFZ Centre for Environmental Research Leipzig-Halle
Permoserstrasse 15
04318 Leipzig
Germany
Tel: ++49 (341) 235 3979
Fax: ++49 (341) 235 3939
