This site created entirely with PICO Alert Alert is a host monitoring tool used in keeping track of large clusters of machines.
Full details are available on the distribution page .
Right now it is in use on the Centurion cluster and the Multimedia Networks Group testbed machines. It is based loosely on the original ping code, with some improvements made for the sole purpose of gathering large amounts of data. Current supported platforms include Linux, BSD and Solaris. It is also currently in use as part of the Alert package. This is a new project I'm just starting work on.