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This paper describes the software architecture and the implementation of a fully operational testbed that demonstrates the benefits of flexible, dynamic resource allocation with virtualized LTE-A nodes. The testbed embodies and specializes the general software architecture devised within the Flex5Gware EU project, and focuses on two intelligent programs: the first one is a Global Scheduler, that coordinates...
Autonomous systems are expected to be capable of performing many core functions with little or no human intervention. Many of the other functions required for overall success, however, still involve human supervision, manual control, or direct performance by a human. This paper presents the conceptual framework known as operator role theory, and specifically the concept of executive control (rather...
For commercial software in scientific and engineering computing, software licenses are needed when running them in high performance computing systems. Usually, there is a constraint for the number of software licenses. With the traditional software licenses management approaches, there is a prominent issue. The jobs will fail immediately without available software licenses. However, the existing job...
By default, in the execution of processes supported by BPMS (Business Processes Management System) any task requiring human intervention is delivered to all the persons registered on the corresponding “role”. This article argues that in order to optimize the execution of work in organizations it is necessary to conciliate the characteristics of the tasks to be performed and the social and human aspects...
Cyber-physical systems (CPS) are large scale systems highly integrated with the physical environment. Given the changing nature of physical environments, CPS must be able to adapt on-line to new situations while preserving their correct operation. Correctness by construction relies on using formal tools, which suffer from a considerable computationaloverhead especially if executed on-line. As the...
According to analysis by Gartner, Inc., cloud computing is one of the top 10 strategic technology for most organizations in 2015. Gartner defines a strategic technology as one with the potential for significant impact on the organization in the next three years. Even though virtualization can reduce the cost of hardware equipment, but it still faces with two problems: energy consumption and the waste...
This article is concerned chiefly with a software integration architecture for providing a large-capacity collective memory layer on a multi-node system by using a remote direct memory access technique and a software virtualization technique. Major components described by the architecture include a memory region management module, a large-capacity collective memory service module, and a data cooperative...
We present a demonstration of HyperFlex [1], a Software-Defined Networking (SDN) virtualization architecture with flexible hypervisor function allocation guaranteeing control-plane virtualization. Network Virtualization (NV) is expected to overcome the ossification of today's communication networks. SDN is seen as an enabler for programmable network control. In order to fully virtualize software-defined...
Software Defined Networking (SDN) is a hot topic in high speed networking. The paper shows how SDN could be applied in industrial networks to enhance system stability and allow simpler life-cycle management. An overview on current state of the art in SDN is given and after the possible connection points and interfaces to industrial Ethernet is given. The gain with applying SDN is supported with examples,...
In order to improve resource utilization of software evolution processes, reduce the cost of resource management, on the basis of classifying and describing the resources, introduced 3S technology to analysis and manage the typical resources in area of Software Evolution Processes, and with the updating principle of GIS Database, proposed a framework of Management Resources System, and also designed...
This paper addresses the problem of managing highly dynamic network and service environments, where virtual nodes and virtual links are created and destroyed depending on traffic volumes, service requests, or high-level goals such as reduction in energy consumption. This problem will be one of the main technical challenges to be faced in the evolution towards Future Networks (FN). Emerging paradigms...
Bursts of abnormally high use of resources are thought to be an indirect cause of failures in large cluster systems, but little work has systematically investigated the role of high resource usage on system failures, largely due to the lack of a comprehensive resource monitoring tool which resolves resource use by job and node. The recently developed TACC_Stats resource use monitor provides the required...
This paper aims at presenting the development and implementation of an approach to deal with Optimal Meters Allocation problem, looking for monitoring voltage sags and swells in Power networks. The problem is modeled as a classic problem of covering. The technique used was based on implementation of Greedy Randomized Adaptive Search Procedure GRASP and other based in Variable Neighborhood Search VNS...
Adaptability can be defined as the ability of a system to fit to changed circumstances. Adaptability is a property related to engineering as well as to the execution of networked service systems. This paper considers general issues of adaptation at two abstraction levels: 1) System of entities, terrain, functions and adaptability types, and 2) Architectures supporting adaptability. Adaptability types...
Information grid makes up for the lack of conventional information system in distributed information application, and provides a new mode of using the information resources for uses. As Agent is the branch of distributed artificial intelligence, the system which combined Agent with other distributed technologies also became important research topics currently. Based on detailed analysis to Agent technology...
This paper designs and implements a load balancing scheme based on dynamic resource allocation policy for virtual machine cluster, which are running under para-virtualization mode on a cluster of physical machines (PM) in shared storage architecture. It monitors the real-time resources utilization of VMs and PMs, including CPU, memory and network, then uses instant resource reallocation for virtual...
Measuring the development of an enterprise software project progress and performance is crucial to assure a project follow its path. This attention stems in parts from the frequent reports of high profile cases of mismanaged in IT projects particularly in enterprise level such as information technology strategic planning (ITSP) projects. Many project performance measurement models and frameworks have...
Desktop virtualization is a new delivery method in which desktop operating systems execute in a data center and users access their applications using stateless "thin-client" devices. This paradigm promises significant benefits in terms of data security, flexibility, and reduction of the total cost of ownership. It is important to further improve this approach while maintaining good user...
To bridge the gap between computing grid environment and users, various Grid Widgets are developed by the Grid development team in the National Center for High-performance Computing (NCHC). These widgets are implemented to provide users with seamless and scalable access to Grid resources. Currently, this effort integrates the de facto Grid middleware, Web-based Operating System (WebOS), and automatic...
Server consolidation and virtualization technology are used in modern data center as a method to improve the server utilization rate by encouraging the sharing of physical resources between virtual machines (VM). Although, this can be realized by plenty of virtualization softwares available in markets, creating a good management policy for the server consolidation environment is still a challenging...
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