Cluster scripts

• cl
  Runs a command on selected nodes, prints node usage statistics
  cl -j ! prints CPU usage for all nodes
  cl "df -k" ! checks disk space usage on all nodes
  cl -w "1 5 9" ! turns on the power on nodes 1,5 and 9.
  Note that power management requires that system be set to do it.
  Also to wake the cluster you need to provide MAC addresses that the script expects to find at /usr/global/local/MACs. Waking up nodes requires root. See here.
• Two scripts to broadcast files from one node to all in parallel using UNIX scripting: send55 and send-r. Usage:
  send55 sourcefile destfile ,
  where sourcefile is on NFS and destfile is on the local disk.

Other software

• ether-wake.c, a magic packet sender to do "Wake on LAN". If it is not available there, download from here.