Adaptive, Transparent Frequency and Voltage Scaling of Communication Phases in MPI Programs

  title={Adaptive, Transparent Frequency and Voltage Scaling of Communication Phases in MPI Programs},
  author={M. Y. Lim and V. W. Freeh and D. K. Lowenthal},
  journal={ACM/IEEE SC 2006 Conference (SC'06)},
Although users of high-performance computing are most interested in raw performance, both energy and power consumption have become critical concerns. Some microprocessors allow frequency and voltage scaling, which enables a system to reduce CPU performance and power when the CPU is not on the critical path. When properly directed, such dynamic frequency and voltage scaling can produce significant energy savings with little performance penalty.This paper presents an MPI runtime system that… CONTINUE READING
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