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Proceedings 1999 IEEE International Conference on Computer Design: VLSI in Computers and Processors (Cat. No.99CB37040) (1999)
Austin, Texas
Oct. 10, 1999 to Oct. 13, 1999
ISSN: 1063-6404
ISBN: 0-7695-0406-X
pp: 192
Yi Kang , University of Illinois at Urbana Champaign
Wei Huang , University of Illinois at Urbana Champaign
Seung-Moon Yoo , University of Illinois at Urbana Champaign
Diana Keen , University of Illinois at Urbana Champaign
Zhenzhou Ge , University of Illinois at Urbana Champaign
Vinh Lam , University of Illinois at Urbana Champaign
Josep Torrellas , University of Illinois at Urbana Champaign
ABSTRACT
Major advances in Merged Logic DRAM (MLD) technology coupled with the popularization of memory-intensive applications provide fertile ground for architectures based on Intelligent Memory (IRAM) or Processors-in-Memory (PIM). The contribution of this paper is to explore one way to use the current state-of-the-art MLD technology for general-purpose computers. To satisfy requirements of general purpose and low programming cost, we place the PIM chips in the memory system and let them default to plain DRAM if the application is not enabled for intelligent memory. Since wide usability is crucial, we identify and analyze a range of real applications for PIM.Based on the requirements of these applications and current technological constraints, we design a PIM chip and a PIM-based memory system. We call the chip FlexRAM. We describe FlexRAM's design and floorplan, and the resulting memory system. Evaluation of the system through simulations shows that 4 FlexRAM chips often allow a workstation to run 25-40 times faster.
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CITATION

V. Lam et al., "FlexRAM: Toward an Advanced Intelligent Memory System," Proceedings 1999 IEEE International Conference on Computer Design: VLSI in Computers and Processors (Cat. No.99CB37040)(ICCD), Austin, Texas, 1999, pp. 192.
doi:10.1109/ICCD.1999.808425
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