A Survey of Power-saving Techniques in Hpc

Energy aware data centers are new demand of the high performance computing (HPC) industry. In recent years, increasing research efforts have also been devoted to the design of practical power saving techniques in HPC which is a integral part of content deliverynetworks (CDN)s. This paper gives survey of latest researches on power optimization and estimation. Wefirstly highlight the necessities of saving power in HPC, followed by the identification of major power-saving strategies that have been widely exploited in the literature. Furthermore, We present high-level overview of the basic mechanisms to handle the power characteristics of HPC system. Then we review the power optimization research at various levels of HPC architecture. Based on this, discussion over the opportunities and problems present in the current techniques, We believe that this paper will help future researchers to explore more on this area. And before conclusion, some ideas that are come across during writing this pape