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Efficient utilization of high-performance computing (HPC) platforms is an important and complex problem. Execution models, abstract descriptions of the dynamic runtime behavior of the execution stack, have significant impact on the utilization of HPC systems. Using a computational chemistry kernel as a case study and a wide variety of execution models combined with load balancing techniques, we explore...
In this paper we deal with the cloud brokering problem in the context of a multi-cloud infrastructure. The problem is by nature a multi-criterion optimization problem. The focus is put mainly (but not only) on the security/trust criterion which is rarely considered in the litterature. We use the well known Promethee method to solve the problem which is original in the context of cloud brokering. In...
Molecular Dynamics simulations are widely used to obtain a deeper understanding of chemical reactions, fluid flows, phase transitions, and other physical phenomena due to molecular interactions. The main problem with this method is that it is computationally demanding because of its amount of O (N2) and requirements for prolonged simulations. The use of Graphics Processing Units (GPUs) is an attractive...
Two German High Performace Computing (HPC) centers (SCC & HLRS), as well as the Center for Interdisciplinary Risk and Innovation Studies (ZIRIUS) of the University of Stuttgart have jointly created a program to relay knowledge about simulations to students at secondary schools. Through this program they want to narrow the gap between visibility and significance of this technology in modern...
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