Energy- and Endurance-Aware Design of Phase Change Memory Caches

Provided by: edaa
Topic: Storage
Format: PDF
Phase Change Memory (PCM) is one of the most promising technology among emerging non-volatile random access memory technologies. Implementing a cache memory using PCM provides many benefits such as high density, non-volatility, low leakage power, and high immunity to soft error. However, its disadvantages such as high write latency, high write energy, and limited write endurance prevent it from being used as a drop-in replacement of an SRAM cache. In this paper, the authors study a set of techniques to design an energy- and endurance-aware PCM cache. They also modeled the timing, energy, endurance, and area of PCM caches and integrated them into a PCM cache simulator to evaluate the techniques.

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