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Hints to improve automatic load balancing with LeWI for hybrid applications

Marta Garcia, Jesus Labarta, Julita Corbalan
2014 Journal of Parallel and Distributed Computing  
The DLB (Dynamic Load Balancing) library and LeWI (LEnd When Idle) algorithm provide a runtime solution to deal with the load imbalance of parallel applications independently of the source of imbalance  ...  This work is a deep analysis of the sources of efficiency loss correlated with application characteristics, parallelization schemes and programming models.  ...  Acknowledgments We thankfully acknowledge the support of the Spanish Ministry of Education (TIN2007-60625, and CSD2007-00050) and the Generalitat de Catalunya (2009-SGR-980).  ... 
doi:10.1016/j.jpdc.2014.05.004 fatcat:noqletmngbfrliwjlscysxg5um

Invasive Compute Balancing for Applications with Shared and Hybrid Parallelization

Martin Schreiber, Christoph Riesinger, Tobias Neckel, Hans-Joachim Bungartz, Alexander Breuer
2014 International journal of parallel programming  
We validate our approach with different benchmark suites for simulations with artificial workload as well as applications based on dynamically adaptive shallow water simulations, and investigate concurrently  ...  Achieving high scalability with dynamically adaptive algorithms in high-performance computing (HPC) is a non-trivial task.  ...  This sets up demands to the application developer either to extend interfaces of meshing tools supporting dynamical remeshing and load balancing or to manually implement the load balancing and data migration  ... 
doi:10.1007/s10766-014-0336-3 fatcat:3epov6cgnzeetpkhtyazctlrzy