Patent ID: 6219672
Filing Date: 2001-04-17
Classification: G06F,H04L,Y10S

Abstract:
A distributed shared memory system applied to a multiprocessor system of a distributed memory type in which a plurality of computers are loosely-coupled, comprising:shared memory space providing means for providing a shared memory space which is commonly accessible with an identical address with respect to all the processes operating on said plurality of computers;data structure preparing means for preparing, in the shared memory space, a data structure storing appearance frequency in units of sets of specific items extracted from input data by the processes;count up history obtaining means for obtaining a history of count up of the process with respect to the appearance frequency stored in the data structure;count up history transfer means for transferring, to other computers, the count up history obtained by said count up history transfer means;count up history receiving means for receiving the count up history transferred from each of other computers; andcount up history reflecting means for reflecting the count up history received by said count up history receiving means in the appearance frequency stored in the data structure.