本文選題：賽道存儲器　切入點：熱力模型　出處：《計算機研究與發(fā)展》2017年01期

【摘要】：賽道存儲器(racetrack memory,RM)作為一種新型的非易失存儲器件,對于未來存儲結構設計具備很高的競爭力.RM通過將多個位信息存儲在一個條帶狀的磁材料納米線上,從而達到很高的存儲密度.同時,又能夠提供很快的讀/寫訪問速度.為了能夠訪問RM條帶上不同位置的位信息,需要引入一種特有的"移動"操作.然而,研究人員觀察到移動操作需要較高驅動電流并產生大量熱量,從而引起性能和穩(wěn)定性的下降,甚至由于溫度過高引起存儲單元的損壞.現在仍缺乏一個關于RM移動的熱力模型來估算運行中的溫度.更重要的是,RM急需一個體系結構級的管理策略來避免溫度過高帶來的穩(wěn)定性問題.針對這些問題,首先提出了一個熱力模型來研究RM使用時溫度與設計參數的關系.同時,為了提高RM的穩(wěn)定性,一種基于"配額制度"的移動操作管理策略被討論,以保證單位時間內的移動強度被限定在特定閾值下.實驗結果表明,該方法能夠以3.5%的性能代價將溫度升高控制在20℃之內.
[Abstract]:Racetrack memory RMs, as a new type of nonvolatile memory device, are highly competitive for future memory design. RM stores multiple bits of information on a strip of magnetic nanowires. Therefore, the storage density is very high. At the same time, it can provide fast read / write access speed. In order to be able to access the bit information with different positions on the RM bar, it is necessary to introduce a special "move" operation. The researchers observed that mobile operations require higher driving currents and generate large amounts of heat, which can lead to a decline in performance and stability. There is still a lack of a thermal model on RM movement to estimate the temperature in operation. More importantly, RM urgently needs an architecture level management strategy to avoid temperature. Stability problems caused by too much. In response to these problems, In this paper, a thermodynamic model is proposed to study the relationship between the temperature and design parameters when RM is used. In order to improve the stability of RM, a mobile operation management strategy based on "quota system" is discussed. The experimental results show that the temperature rise can be controlled within 20 鈩，

本文編號：1658379