power-aware and temperature restrain modeling for ....pdf

Power-aware and Temperature Restrain Modeling for Maximizing Performance and Reliability Laxmikant V. Kale, Akhil Langer ?, and Osman Sarood Department puter Science University of Illinois at Urbana-Champaign ?******@ ABSTRACT Ability to constrain power consumption in the recent hard- ware architectures is a powerful capability that can be lever- aged for e?cient utilization of available power. We propose to develop power-aware performance models that can pre- dict job performance given a resource con?guration, that is, the CPU/memory power cap, the number of nodes, etc. In addition to performance optimization under a ?xed power budget, our proposed model also alleviates the di?erence in thermal pro?les amongst di?erent processors to achieve a balance in the overall temperature distribution of the data center. Reduced temperature of operation improves the re- liability of the system in addition to saving cooling energy of the data center, while minimizing the overall execution time of the jobs. The power-aware performance model can be used to determine the optimal resource con?gurations for a job or for a set of jobs, with the aim of e?cient utilization of power. 1. POWER-AWAREPERFORMANCEMOD- ELING Power requirements of a data center puted us- ing the Thermal Design Power (TDP) of its subsystems. However, TDP limit is hardly reached in normal operation for any ind