Evaluating STT-RAM as an energy-efficient main memory alternative

Emre Kultursay, Mahmut Kandemir, Anand Sivasubramaniam, Onur Mutlu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

249 Scopus citations

Abstract

In this paper, we explore the possibility of using STT-RAM technology to completely replace DRAM in main memory. Our goal is to make STT-RAM performance comparable to DRAM while providing substantial power savings. Towards this goal, we first analyze the performance and energy of STT-RAM, and then identify key optimizations that can be employed to improve its characteristics. Specifically, using partial write and row buffer write bypass, we show that STT-RAM main memory performance and energy can be significantly improved. Our experiments indicate that an optimized, equal capacity STT-RAM main memory can provide performance comparable to DRAM main memory, with an average 60% reduction in main memory energy.

Original languageEnglish (US)
Title of host publicationISPASS 2013 - IEEE International Symposium on Performance Analysis of Systems and Software
Pages256-267
Number of pages12
DOIs
StatePublished - Aug 19 2013
Event2013 IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2013 - Austin, TX, United States
Duration: Apr 21 2013Apr 23 2013

Publication series

NameISPASS 2013 - IEEE International Symposium on Performance Analysis of Systems and Software

Other

Other2013 IEEE International Symposium on Performance Analysis of Systems and Software, ISPASS 2013
CountryUnited States
CityAustin, TX
Period4/21/134/23/13

All Science Journal Classification (ASJC) codes

  • Software

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    Kultursay, E., Kandemir, M., Sivasubramaniam, A., & Mutlu, O. (2013). Evaluating STT-RAM as an energy-efficient main memory alternative. In ISPASS 2013 - IEEE International Symposium on Performance Analysis of Systems and Software (pp. 256-267). [6557176] (ISPASS 2013 - IEEE International Symposium on Performance Analysis of Systems and Software). https://doi.org/10.1109/ISPASS.2013.6557176