Mobile Oriented Future Internet (MOFI)

This Special Issue consists of seven papers that discuss how to enhance mobility management and its associated performance in the mobile-oriented future Internet (MOFI) environment. The first two papers deal with the architectural design and experimentation of mobility management schemes, in which new schemes are proposed and real-world testbed experimentations are performed. The subsequent three papers focus on the use of software-defined networks (SDN) for effective service provisioning in the MOFI environment, together with real-world practices and testbed experimentations. The remaining two papers discuss the network engineering issues in newly emerging mobile networks, such as flying ad-hoc networks (FANET) and connected vehicular networks

Prototyping Workload-based Resource Coordination for Cloud-leveraged HPC/BigData Cluster Sharing

Recently high-performance computing (HPC) and BigData workloads are increasingly running over cloud-leveraged shared resources, meanwhile traditionally dedicated clusters have been configured only for specificworkloads. That is, in order to improve resource utilization efficiency, shared resource clusters are required to support both HPC and BigData workloads. Thus, in this paper, we discuss about a prototyping effort to enable workload-based resource coordination for cloud-leveraged shared HPC/BigData cluster.By taking OpenStack cloud-leveraged shared cluster as an example, we demonstrate the possibility of workload-based bare-metal cluster reconfiguration with interchangeable cluster provisioning and associated monitoring support

Utilização de armazenamento definido por software em uma arquitetura hiperconvergente de containers

Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Exatas, Departamento de Ciência da Computação, 2019.Esse trabalho propõe uma arquitetura hiperconvergente de containers que usa um sistema de armazenamento definido por software. A arquitetura promove a otimização dos recursos de computação e armazenamento, principalmente ao consolidar os recursos de armazenamento disponíveis em diversos servidores dispersos em um datacenter. Para avaliar a arquitetura proposta o sistema foi submetido a diferentes configurações e intensidades de carga de trabalho oriúndas dos datacenters da Microsoft e do Yahoo. Os resultados mostram que a arquitetura proposta apresenta potencial, visto que consegue obter melhor desempenho e eficiência do que uma arquitetura tradicional de armazenamento local.This work proposes a hyperconverged architecture for textit containers that uses a software-defined storage. The proposed architecture promotes the optimization of compute and storage resources, especially by consolidating the storage resources available on multiple servers scattered in a datacenter. In order to evaluate the proposed architecture, the system was submitted to different configurations and workload intensities from Microsoft and Yahoo datacenters. The results show that the proposed architecture has potential because, achieving better performance and efficiency than a traditional local storage architecture