As title says, the ganglia page is defaulting to cluster report, which is quite ugly as it is attempting to mesh the 2 clusters together. Both ganglia/?c=kvmsrvGrid and ganglia/?c=unspecified work fine.
I'd like it to look like this: http://monitor.millennium.berkeley.edu/?m=&r=hour&s=descending&hc=4
Instead it looks more like this (with kvmsrvGrid): http://ganglia.millennium.berkeley.edu/infrastructure/?c=Management%20Servers
data_source "unspecified" localhost:8649 data_source "kvmsrvGrid" kvmsrv5:8650 kvmsrv4:8650 gridname "unspecified"
edit: Ganglia version 3.1.2