Cluster Management in VisLab

Cluster Manager is a python-based GUI that lets the user check and influence the status of "yarp run" on a cluster of computers.

To run Cluster Manager, just go to $ICUB_DIR/app/default/scripts and run

 ./icub-cluster.py 

by default, it reads configuration information from $ICUB_DIR/app/default/icub-cluster.xml (I GUESS, NOT SURE). We changed it to read configuration information from $ICUB_DIR/app/default/vislab-cluster.xml.

We had to write these two lines to ~/.bash_env on the Cortex machines (user icub) and on Chico2 in order to have remote execution with ssh to work:

 export ICUB_DIR=/home/icub/iCub
 export ICUB_ROOT=$ICUB_DIR

We had to create a /tmp/run directory on the Cortex machines (each one of them: these directories are different for each one), belonging to user icub and writable by anyone, so that "yarp run" could run on those machines. I have no clue why this is needed: on pc104 such directory doesn't seem to exist.