A PRIVATE-IP-ENABLED MPI COMMUNICATION METHOD IN SYSTEM LEVEL OVER GRID ENVIRONMENTS THROUGH REVISED HOLE PUNCHING

摘要

An MPI(Message Passing Interface) communication method in a system level which supports a private IP through modified hole punching in a grid environment is provided to modify hole punching so as to be executed at an MPI program in order to solve the problem that an existing MPI program cannot be executed on a private IP cluster. In a communication method using MPI programs which respectively are executed at a plurality of clusters on the basis of grid middleware, a modified hole punching process to grant a private IP address and a public IP address to each MPI program is presented so that direct communication can be achieved between MPI programs. In this case, each MPI program acquires its own public IP address from each management node's NAT(Network Address Translator) service. Each MPI program, acquiring its own public IP address, delivers channel information, which contains its own private IP address and the acquired public IP address, to the other MPI programs. Each MPI program stores the delivered channel information in an identification table correspondingly.