Energy efficient proactive thermal management in memory subsystem

Energy management of memory subsystem is challenging due to performance and thermal constraints. Big energy gains can be obtained by clustering memory accesses, how-ever this also leads to a higher need for cooling due to larger temperatures in active areas of memory. Our solution to memory thermal management problem is based on proac-tive thermal management that intelligently allocates work-load pages to few memory units and powers down rest of the memory. Our experimental results show that this approach improves energy savings by 43 % and reduces performance overhead by 85 % with respect to the state of the art po-lices