To use cluster for interactive jobs type (X11 graphics):

qrsh xterm - to work interactively on the node

To use whole node for you please type:

qrsh –pe smp 8 xterm

This mean that parallel environment uses 8 cpus (each node has 8 cpus).

To qrsh to specific node (if all slots are not used):

qrsh -q all.q@node04.cluster       (node names you get from qt or qstat -f)

qlogin - to work interactively on the node

Please be sure that you have following line in .barhrc  (otherwise keybord settings are not correct):

export TERM=vt100