Network load reducing method and node structure for multiprocessor system with distributed memory

A node comprising:

• a processor configured to control the node and process data;
• a distributed memory configured to store the data processed by the processor;
• and
• an auxiliary memory configured to store a sharer history table,
• wherein if the node receives share data, which are requested from a first external node by the node, from a second external node, the sharer history table stores information about the second external node and information about the share data;
• wherein the processor is configured to perform an updating of the sharer history table if the share data received from the second external node represents a change in sharer node information stored in the sharer history table of the auxiliary memory;
• and
• wherein the updating of the sharer history table comprises:
• performing an update request operation of receiving an update request of the sharer history table of the node from a new sharer node storing share data;
• performing a history updating operation of changing information about a node storing the share data in the sharer history table to information about the new sharer node;
• and
• performing a data deleting operation of deleting share data stored in the distributed memory.