APPARATUS, METHOD, AND COMPUTER PROGRAM FOR IMPROVING PERFORMANCE OF PARALLEL COMPUTING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an apparatus, method, and computer program for improving performance of a parallel computing system.SOLUTION: A first local cache controller associated with a first local cache of a first processor detects occurrence of false sharing of a first cache line by a second processor running a program code and allows the false sharing of the first cache line by the second processor. The false sharing of the first cache line occurs upon updating a first portion of the first cache line in the first local cache by the first local cache controller and subsequent updating a second portion of the first cache line in a second local cache by a second local cache controller.