Robert Springer David K. Lowenthal Barry Rountree Vincent W. Freeh Minimizing execution time in MPI programs on an energy-constrained, power-scalable cluster. 230-238 2006 conf/ppopp/2006 PPOPP http://doi.acm.org/10.1145/1122971.1123006 db/conf/ppopp/ppopp2006.html#SpringerLRF06