Journal
IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS
Volume 1, Issue 2, Pages 109-119Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JETCAS.2011.2158343
Keywords
Bistable circuits; circuit simulation; finite-element transistors (FETs); heterojunctions; hybrid integrated circuits; logic circuits; magnetic circuits; magnetic tunneling; MOSFET circuits; microprocessors; tunneling
Categories
Funding
- Semiconductor Research Corporation Nanoelectronics Research Initiative
- National Institute of Standards and Technology through the Midwest Institute for Nanoelectronics Discovery (MIND)
- NSF [0829926, 0903432, 0916887, 1028807]
- Division of Computing and Communication Foundations
- Direct For Computer & Info Scie & Enginr [0829926] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1028807] Funding Source: National Science Foundation
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Heterogeneous multicores are envisioned to be a promising design paradigm to combat today's challenges of power, memory, and reliability walls that are impeding chip design using deep submicron technology. Future multicores are expected to integrate multiple different cores, including GPGPUs, custom accelerators and configurable cores. In this paper, we introduce an important dimension-technology-using which heterogeneity can be introduced in multicores to improve their energy-performance envelope. Specifically, we analyze the benefits of heterogenous technologies for processor cores and cache subsystems. We discuss two promising device candidates (Tunnel-FET and Magnetic-RAM) for introducing technological diversity in the multicores and analyze their integration in the processor and cache hierarchy in detail. Our analysis shows that introducing such a kind of heterogeneity can significantly enhance the performance and energy behavior of future multicore systems.
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