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Spin-torque transfer RAM (STT-RAM), a promising alternative to static RAM (SRAM) for reducing leakage power consumption, has been widely studied to mitigate the impact of its asymmetrically long write latency. However, physical effects of technology scaling down to 45 nm and below, in particular, process variation, introduce the previously unreported and alarming trends in read performance and reliability...
STT-RAM is an emerging NVRAM technology that promises high density, low energy and a comparable access speed to conventional SRAM. This paper proposes a hybrid L1 cache architecture that incorporates both SRAM and STT-RAM. The key novelty of the proposal is the exploition of the MESI cache coherence protocol to perform dynamic block reallocation between different cache partitions. Compared to the...
The racetrack memory technology utilizes magnetic domains along a nanoscopic wire to obtain ultra-high data storage density. The recent success in the planar racetrack nanowire promised its fabrication feasibility and future scalability, bringing more design challenges and opportunities. In this paper, we initialize the optimization of racetrack memory embracing design considerations across multiple...
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