2016 24th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP)
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Abstract

This work presents two novel techniques for increasing the energy efficiency of parallel applications by means of malleability. These techniques are implemented as an extension of Flex-MPI, a library implemented on top of MPI, which provides performance-aware dynamic reconfiguration for MPI-based applications. During the application execution, Flex-MPI performs energy and performance monitoring by means of energy and performance counters. It leverages this information in order to adapt the program performance using two energy policies: energy minimization and performance-per-watt maximization. The evaluation results show that these new energy-aware capabilities permit MPI applications to be executed in an optimized way both in terms of performance and energy efficiency.
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