DOT Speckle Processor master

The machine called dspmaster has a supervisory task in the cluster. From this machine, the other nodes can be powered up and down. The Linux kernel and filesystem is served via PXE and TFTP from this machine.

Node control

The pu command powers up selected nodes. The names of the nodes (without dsp in front) are given as the arguments of this command. For example:

pu no31 no32 no33 no33 no34 no35

Powers up those five nodes.

The pd command powers down selected nodes.

The clex command sends a command to all nodes via ssh. For example:

clex 'killall idl' no31 no32 no33 no34 no35

Sends the command killall idl to those five nodes.