EIT will generate a wrong network format in the scorehosts.db file if
- the cluster has more than one network and
- all compute hosts do not have all networks
In the following cluster configuration, for example,
Host | Network |
server.pccluster.org | Ethernet |
comp0.pccluster.org | Myrinet and Ethernet |
comp1.pccluster.org | Myrinet and Ethernet |
If you configure a compute host group including server and compute hosts,
EIT will generate a wrong network specification as follows:
server.pccluster.org HOST_0 network=ethernet group=_scoreall_,pcc-server smp=1 MSGBSERV
comp0.pccluster.org HOST_1 network=myrinet2k,ethernet group=_scoreall_,pcc-server,pcc smp=1 MSGBSERV
comp1.pccluster.org HOST_2 network=myrinet2k,ethernet group=_scoreall_,pcc-server,pcc smp=1 MSGBSERV
This should be as follows:
server.pccluster.org HOST_0 network=ethernet group=_scoreall_,pcc-server smp=1 MSGBSERV
comp0.pccluster.org HOST_1 network=ethernet,myrinet2k group=_scoreall_,pcc-server,pcc smp=1 MSGBSERV
comp1.pccluster.org HOST_2 network=ethernet,myrinet2k group=_scoreall_,pcc-server,pcc smp=1 MSGBSERV
However, be carefull that default network in the pcc group is ethernet, not
myrinet2k !