Stavrinides, Georgios L.Karatza, Helen D.Carretero Pérez, JesúsGarcía Blas, JavierBarbosa, JorgeMorla, RicardoUniversidad Carlos III de Madrid. Computer Architecture, Communications and Systems Group (ARCOS)2015-11-112015-11-112014-11Carretero Pérez, Jesús; et.al. (eds.). (2014) Proceedings of the First International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014): Porto, Portugal. Universidad Carlos III de Madrid, pp. 13-18.978-84-617-2251-8https://hdl.handle.net/10016/21981Proceedings of: First International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014). Porto (Portugal), August 27-28, 2014.One of the major challenges in ultrascale systems is the effective scheduling of complex jobs within strict timing constraints. The distributed and heterogeneous system resources constitute another critical issue that must be addressed by the employed scheduling strategy. In this paper, we investigate by simulation the performance of various policies for the scheduling of real-time directed acyclic graphs in a heterogeneous distributed environment. We apply bin packing techniques during the processor selection phase of the scheduling process, in order to utilize schedule gaps and thus enhance existing list scheduling methods. The simulation results show that the proposed policies outperform all of the other examined algorithms.6application/pdfengSchedulingDistributed systemsReal-time jobsSimulationPerformance evaluationconference paperInformáticaopen access1318Proceedings of the First International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014): Porto, Portugal