Processing in memory: the tipping point: Why processing in memory is happening now and how to make it widely adopted in HPC

Abstract : The tipping point for adoption of PIM is imminent for three main reasons: • Firstly, PIM avoids the von Neumann bottleneck, a fundamental limitation to the effective use of computing systems for a large range of important data-centric applications. • Secondly, it matches the community's requirement for efficient application acceleration by reducing the amount of expensive data transfers, and demonstrates orders of magnitude improvements in performance and energy. • Thirdly, PIM has reached a high technological readiness confirmed by various industrial prototypes and products. Wide acceptance of PIM, however, depends on our ability to create an ecosystem in which a number of PIM approaches can be designed and evaluated, leading to the selection of potential winners and adoption by system architects and end users.