%0 Journal Article %J IEEE Computing in Science and Engineering %D 2013 %T PaRSEC: Exploiting Heterogeneity to Enhance Scalability %A George Bosilca %A Aurelien Bouteiller %A Anthony Danalis %A Mathieu Faverge %A Thomas Herault %A Jack Dongarra %X New high-performance computing system designs with steeply escalating processor and core counts, burgeoning heterogeneity and accelerators, and increasingly unpredictable memory access times call for dramatically new programming paradigms. These new approaches must react and adapt quickly to unexpected contentions and delays, and they must provide the execution environment with sufficient intelligence and flexibility to rearrange the execution to improve resource utilization. %B IEEE Computing in Science and Engineering %V 15 %P 36-45 %8 2013-11 %G eng %N 6 %R 10.1109/MCSE.2013.98