Title
Evaluation of spin-Hall-assisted STT-MRAM for cache replacement
Abstract
Emerging spin orbit torque (SOT) promises to achieve high-speed write operation for magnetoresistive random access memory (MRAM) since it can eliminate the incubation delay of the conventional spin transfer torque (STT). Such a speed improvement allows the MRAM to be used as low-level cache in the computer architecture. Among various SOT technologies, spin-Hall-assisted STT is a potential candidate thanks to its magnetic-field-free benefit. In this work, we evaluate the potential of the spin-Hall-assisted STT-MRAM in the cache replacement. Firstly, the bit-cell parameters are obtained from the circuit-level simulation. Then, the cache evaluation and system-level simulation are performed with NVSim and Gem5 simulators. Simulation results validate the advantage of the spin-Hall-assisted STT in the write speed and energy. Moreover, for the large capacity (about >2 MB), the spin-Hall-assisted STT-MRAM is a competitive candidate for replacing the conventional SRAM-based cache.
Year
DOI
Venue
2016
10.1145/2950067.2950107
2016 IEEE/ACM International Symposium on Nanoscale Architectures (NANOARCH)
Keywords
Field
DocType
spin orbit torque (SOT),spin transfer torque (STT),magnetoresistive random access memory (MRAM),cache replacement,NVSim,GEM5
Spin orbit torque,Spin-½,Computer science,Cache,Parallel computing,Static random-access memory,Magnetoresistive random-access memory,Spin-transfer torque,Computer hardware,Embedded system
Conference
ISSN
ISBN
Citations 
2327-8218
978-1-4673-8927-3
4
PageRank 
References 
Authors
0.47
9
6
Name
Order
Citations
PageRank
Liang Chang12314.22
Zhaohao Wang282.25
Yuqian Gao350.86
Wang Kang416127.54
Youguang Zhang5217.75
Weisheng Zhao6730105.43