problem extending demo examples

Hi,

I'm having problems extending the crdemo_full.conf example to run
with more than one server. At present I'm happy just to run all
of the processes on a single host before trying them on our Linux
cluster. I think I've placed a crserver on port 7000 and another
on port 7001 (they are definitely listening there) but when I 
run the crappfaker I get this:

-bash-2.05b$ crappfaker
CR Warning(ulgbc2:31341): Couldn't find the CRMOTHERSHIP environment variable, defaulting to localhost
CR Warning(ulgbc2:31342): Couldn't find the CRMOTHERSHIP environment variable, defaulting to localhost
CR Error(ulgbc2:31342): Bad server specification for Pack SPU 2
CR Error(ulgbc2:31324): Mothership didn't like my accept request

Thank you for using Chromium!
CR Error(ulgbc2:31330): Mothership didn't like my accept request
[2]-  Done                    crserver

Any idea what the problem is here ? This is the conf file:

import sys
sys.path.append( '../server' )
from mothership import *

if len(sys.argv) > 3 or len(sys.argv) < 2:
        print 'Usage: %s <demo> [spu]' % sys.argv[0] 
        sys.exit(-1)

demo = sys.argv[1]

if len(sys.argv) == 3:
        clientspuname = sys.argv[2]
else:
        clientspuname = 'pack'

server_spu = SPU( 'render' )
client_spu = SPU( clientspuname )
worker_spu = SPU( 'render' )

server_spu.Conf( 'window_geometry', [500, 500, 500, 250] )
server_node = CRNetworkNode( )
server_node.AddSPU( server_spu )

worker_spu.Conf( 'window_geometry', [0, 0, 500, 250] )
worker_node = CRNetworkNode( )
worker_node.AddSPU( worker_spu )

if (clientspuname == 'tilesort' ):
        server_node.AddTile( 500, 500, 500, 250 )
        worker_node.AddTile( 0, 0, 500, 250 )

client_node = CRApplicationNode( )
client_node.AddSPU( client_spu )
client_spu.AddServer( server_node,  protocol='tcpip', port=7000 )
client_spu.AddServer( worker_node,  protocol='tcpip', port=7001 )

client_node.SetApplication( os.path.join(crbindir, demo) )
client_node.StartDir( crbindir )

cr = CR()
cr.MTU( 16*1024 )
cr.AddNode( client_node )
cr.AddNode( server_node )
cr.AddNode( worker_node )
cr.Go()NetworkNode( )

The original demo worked fine. I'm running under Red Hat Enterprise 
Linux AS release 3.

Any thoughts - I'm completely lost.

thanks,

-ian.

------------------------------
Dr Ian C. Smith
e-Science Team,
University of Liverpool,
Computing Services Department



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