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Modern high performance computing (HPC) systems exhibit a rapid growth in size, both “horizontally” in the number of nodes, as well as “vertically” in the number of cores per node. As such, they offer additional levels of hardware parallelism. Each level requires and employs algorithms for appropriately scheduling the computational work at the respective level. The present work explores the relation...
Provides an abstract for each of the invited presentations and a brief professional biography of each presenter. The complete presentations were not made available for publication as part of the conference proceedings.
New technologies brought to life by the rapid growth in number of mobile devices are starting to be employed for creating cyberinfrastructures for smart cities. One such technology comes in the form of opportunistic networks (ONs), where mobile nodes only communicate between each other through protocols such as Bluetooth or Wi-Fi Direct. The usefulness of ONs in smart cities is high, because they...
The large software applications of today provide abstractions of the real-life systems that they support. A digital model of the system, and of the changes that occur within, are being maintained and updated, as triggered by real-life events. Morphologically, such applications contain several distinct architectural entities: databases holding the state, central components describing how the system...
In the past few years, datacenter (DC) energy consumption has become an important issue in technology world. Server consolidation using virtualization and virtual machine (VM) live migration allows cloud DCs to improve resource utilization and hence energy efficiency. In order to save energy, consolidation techniques try to turn off the idle servers, while because of workload fluctuations, these offline...
Cloud Services have become an important part of the business world. Although public cloud services provide a range of advantages, it also creates concerns over security, network usage and the need for technical expertise in the management of the cloud. This paper describes a local private cloud which uses on-site hardware infrastructure and which incorporates a three tier management system. This device...
We address the topology-aware job scheduling and placement problems on 3D torus-based high performance computing systems, with the objective of reducing system fragmentation. In our previous work, we proposed a job placement algorithm based on a local migration process, which aims at reducing the internal fragmentation due to using a convex prism shape for job allocation. However, HPC systems are...
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