METHOD OF CONTROLLING COMMUNICATION OF SINGLE COMPUTER IN COMPUTER NETWORK

PROBLEM TO BE SOLVED: To provide a method of efficiently controlling communication of individual computers within a multicomputer system.SOLUTION: Individual computers are connected mutually via a standard network (LAN) (16) and a high-performance network (SAN) (17), and includes a protocol unit and a library within an operation system kernel (10). The unit is connected to the standard network (LAN) and processes communication protocols. The library is disposed at an upstream side of the operation system kernel. An application is mounted onto a communication interface on the library. The standard network (LAN) or the high-performance network (SAN) is selected by a network selection unit. The network is selected before or immediately after the entrance into the operation system kernel after a communication intersection point of the library.