FlexRAM: Toward an advanced Intelligent Memory system

Yi Kang, Wei Huang, Seung Moon Yoo, Diana Keen, Zhenzhou Ge, Vinh Lam, Pratap Pattnaik, Josep Torrellas

Research output: Contribution to conferencePaper


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.

Original languageEnglish (US)
Number of pages10
StatePublished - Dec 1 1999
EventInternational Conference on Computer Design (ICCD'99) - Austin, TX, USA
Duration: Oct 10 1999Oct 13 1999


OtherInternational Conference on Computer Design (ICCD'99)
CityAustin, TX, USA

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Kang, Y., Huang, W., Yoo, S. M., Keen, D., Ge, Z., Lam, V., Pattnaik, P., & Torrellas, J. (1999). FlexRAM: Toward an advanced Intelligent Memory system. 192-201. Paper presented at International Conference on Computer Design (ICCD'99), Austin, TX, USA, .