With the LAM engine running, you can inspect it in various ways. For example you can tping all nodes:
gustav@jupiter:~ 202 $ tping -c 3 N 1 byte from 13 nodes: 0.434 secs 1 byte from 13 nodes: 0.213 secs 1 byte from 13 nodes: 0.213 secs 3 messages, 3 bytes (0.003K), 0.860 secs (0.007K/sec) roundtrip min/avg/max: 0.213/0.287/0.434 gustav@jupiter:~ 203 $You can also check what runs on the nodes by issuing the command state:
gustav@jupiter:~ 203 $ state N NODE INDEX PID KPRI KSTATE PROGRAM gustav@jupiter:~ 204 $
The command line argument N stands for all nodes. You can inspect only selected nodes with LAM commands. For example:
gustav@jupiter:~ 204 $ tping -c 3 n0-5 1 byte from 6 nodes: 0.190 secs 1 byte from 6 nodes: 0.098 secs 1 byte from 6 nodes: 0.132 secs 3 messages, 3 bytes (0.003K), 0.420 secs (0.014K/sec) roundtrip min/avg/max: 0.098/0.140/0.190 gustav@jupiter:~ 205 $