TY - GEN
T1 - Cache revive
T2 - 49th Annual Design Automation Conference, DAC '12
AU - Jog, Adwait
AU - Mishra, Asit K.
AU - Xu, Cong
AU - Xie, Yuan
AU - Narayanan, Vijaykrishnan
AU - Iyer, Ravishankar
AU - Das, Chita R.
PY - 2012/7/11
Y1 - 2012/7/11
N2 - High density, low leakage and non-volatility are the attractive features of Spin-Transfer-Torque-RAM (STT-RAM), which has made it a strong competitor against SRAM as a universal memory replacement in multi-core systems. However, STT-RAM suffers from high write latency and energy which has impeded its widespread adoption. To this end, we look at trading-off STT-RAM's non-volatility property (data-retention-time) to overcome these problems. We formulate the relationship between retention-time and write-latency, and find optimal retention-time for architecting an efficient cache hierarchy using STT-RAM. Our results show that, compared to SRAM-based design, our proposal can improve performance and energy consumption by 18% and 60%, respectively.
AB - High density, low leakage and non-volatility are the attractive features of Spin-Transfer-Torque-RAM (STT-RAM), which has made it a strong competitor against SRAM as a universal memory replacement in multi-core systems. However, STT-RAM suffers from high write latency and energy which has impeded its widespread adoption. To this end, we look at trading-off STT-RAM's non-volatility property (data-retention-time) to overcome these problems. We formulate the relationship between retention-time and write-latency, and find optimal retention-time for architecting an efficient cache hierarchy using STT-RAM. Our results show that, compared to SRAM-based design, our proposal can improve performance and energy consumption by 18% and 60%, respectively.
UR - http://www.scopus.com/inward/record.url?scp=84863554441&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863554441&partnerID=8YFLogxK
U2 - 10.1145/2228360.2228406
DO - 10.1145/2228360.2228406
M3 - Conference contribution
AN - SCOPUS:84863554441
SN - 9781450311991
T3 - Proceedings - Design Automation Conference
SP - 243
EP - 252
BT - Proceedings of the 49th Annual Design Automation Conference, DAC '12
Y2 - 3 June 2012 through 7 June 2012
ER -