Computer Science ›› 2013, Vol. 40 ›› Issue (4): 59-63.

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Power Management of Idle Nodes in Clusters

LIU Yong-peng,LU Kai and CHI Wan-qing   

  • Online:2018-11-16 Published:2018-11-16

Abstract: Existence of massive active idle nodes causes huge energy waste in large scale systems.Cache-style power management for idle nodes was proposed to schedule the power states of idle nodes.According to their different sleep states,idle nodes are placed into multiple groups with corresponding sleep states.It is expected to achieve a system response speed similar to the active state and a power saving similar to the deepest sleep state.The idle nodes are dynamically transformed between different sleep groups.Assuring response speed of system,idle node is put into a sleep state as deep as possible.In our experiments,CPMI conserves the power consumption of idle nodes by 69.51% with the cost of relative slowdown only by 0.99%.

Key words: Compute cluster,Power management,Node sleep

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