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OMP2HMPP: Compiler Framework for Energy-Performance Trade-off Analysis of Automatically Generated Codes

Albert Saa-Garriga, David Castells-Rufas, Jordi Carrabina
Department of Microelectronics and Electronic Systems, Universitat Autonoma de Barcelona, Bellaterra, Barcelona 08193, Spain
International Journal of Computer Science Issues, 2015

@article{saa2015omp2hmpp,

   title={OMP2HMPP: Compiler Framework for Energy-Performance Trade-off Analysis of Automatically Generated Codes},

   author={Sa{‘a}-Garriga, Albert and Castells-Rufas, David and Carrabina, Jordi},

   year={2015}

}

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We present OMP2HMPP, a tool that, in a first step, automatically translates OpenMP code into various possible transformations of HMPP. In a second step OMP2HMPP executes all variants to obtain the performance and power consumption of each transformation. The resulting trade-off can be used to choose the more convenient version. After running the tool on a set of codes from the Polybench benchmark we show that the best automatic transformation is equivalent to a manual one done by an expert. Compared with original OpenMP code running in 2 quad-core processors we obtain an average speed-up of 31 and 5.86 factor in operations per watt.
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