mping is a two-way ping utility for myrinet on Cplant. It is run on a service or compute node to test the myrinet connection to other machines. It takes as argument a space-separated list of machine names of the form c-X.SU-Y. mping is a perl wrapper that translates machines names into node ids and calls vping (a C program) with each node id. mping relies on the Cplant rtscts myrinet driver/module running on the machines in question.
mping must be run as the superuser.