论文标题
可靠且节能的PCM系统的设计方法
Design Methodologies for Reliable and Energy-efficient PCM Systems
论文作者
论文摘要
相变内存（PCM）是一种可扩展且低的延迟非易失性存储器（NVM）技术，已提议用作存储类存储（SCM），提供了类似于DRAM的低访问延迟，并且经常接近或超过SSD的容量。 PCM的多级属性还使其在神经形态系统中的采用能够构建高密度的突触存储。我们研究并描述了PCM系统的两个重要瓶颈。首先，与阅读其内容相比，写信给PCM细胞的潜伏期和能量损失明显更高。其次，PCM的高工作电压会影响其可靠的操作。在这项工作中，我们提出了解决瓶颈的方法，从而提高了PCM系统的性能，可靠性，能耗和可持续性。
Phase-change memory (PCM) is a scalable and low latency non-volatile memory (NVM) technology that has been proposed to serve as storage class memory (SCM), providing low access latency similar to DRAM and often approaching or exceeding the capacity of SSD. The multilevel property of PCM also enables its adoption in neuromorphic systems to build high-density synaptic storage. We investigate and describe two significant bottlenecks of a PCM system. First, writing to PCM cells incurs significantly higher latency and energy penalties than reading its content. Second, high operating voltages of PCM impacts its reliable operations. In this work, we propose methodologies to tackle the bottlenecks, improving performance, reliability, energy consumption, and sustainability for a PCM system.
