NSF-PIM
NSF-PIM Pilot Talk 2: Dr. Onur Mutlu
Professor in ETH Zurich
00:00:00 Introduction
00:04:23 Pilot Talk2
00:10:49 Pilot Talk2: An Intelligent Architecture Handles Data Well
00:39:00 Pilot Talk2: PIM: Two Approaches: Minimally changing memory chips
00:52:20 Pilot Talk2: PIM: Two Approaches: Exploiting 3D-stacked memory
01:07:22 Pilot Talk2: Q&A
Abstract
Computing is bottlenecked by data. Large amounts of application data overwhelm storage capability, communication capability, and computation capability of the modern machines we design today. As a result, many key applications’ performance, efficiency and scalability are bottlenecked by data movement. We describe three major shortcomings of modern architectures in terms of 1) dealing with data, 2) taking advantage of the vast amounts of data, and 3) exploiting different semantic properties of application data. We argue that an intelligent architecture should be designed to handle data well. We show that handling data well requires designing architectures based on three key principles: 1) data-centric, 2) data-driven, 3) data-aware. We give several examples for how to exploit each of these principles to design a much more efficient and high performance computing system. We will especially discuss recent research that aims to fundamentally reduce memory latency and energy, and practically enable computation close to data, with at least two promising novel directions: 1) performing massively-parallel bulk operations in memory by exploiting the analog operational properties of memory, with low-cost changes, 2) exploiting the logic layer in 3D-stacked memory technology in various ways to accelerate important data-intensive applications. We discuss how to enable adoption of such fundamentally more intelligent architectures, which we believe are key to efficiency, performance, and sustainability. We conclude with some guiding principles for future computing architecture and system designs. Throughout the talk, we will point out how open source hardware can enable innovation in and adoption of the paradigms we introduce.
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