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Today's dynamic life has changed the traditional teaching from the classroom and laboratory based classical learning to an approach using online and distance e-Learning. Universities usually follow this trend and enable their resources as online utilities for the students. There are several ways to offer these facilities online and cloud is the most promising one when analyzing several criteria. The...
Even if the processing power/price ratio has been increasing significantly during the last years, for some universities the acquisition budget for new equipment still raises issues. In order to increase the available processing power, universities need to purchase new hardware and provide adequate facilities. The trending alternative is to migrate the data processing to a cloud based solution. We...
The PAPI library provides transparent access to new classes of interfaces, including virtualized, power and energy measurements. Existing programs that already support PAPI instrumentation for CPU performance measurements can quickly be adapted to measure these new events with a simple PAPI upgrade.
This paper proposes a dynamic physical-virtual NIC switching. A virtual machine directly accessing the physical NIC can switch to use the virtual NIC if it is to be migrated. This solution is implemented in network configuration level in Guest OS drivers, so it can be used in different VMMs and with different NICs. The experiments illustrate that our solution does not interrupt the network connections...
Educators in Science, Technology, Engineering, and Mathematics (STEM) fields, especially in computing and engineering, must be flexible, up-to-date, and able to offer their students practical experience with continually changing information technologies. The importance of practical work in science and engineering, supported by lab exercises, is widely known. While it is desirable to create physical...
The latest talk in IT industry is about server virtualization. Virtualization increase server utilization rates. Along with this, it lets you consolidate multiple operating systems and applications as per physical server and deploy new applications in minutes. The benefits in utilization, energy savings, manageability, service levels and cost models can be dramatic. If we come to concept of actual...
The paper presents cases of applying hardware virtualization techniques as support for education activities in two different courses and a master thesis within the degree International MSc on Telecommunication Engineering at the Technical University of Denmark (DTU). The triggering problem is presented in each of the cases, together with the benefits and drawbacks of using virtualization to cope with...
The new Italian GPS receiver for Radio Occultation has been launched from Satish Dhawan Space Center (Sriharikota, India) on board of the Indian Remote Sensing OCEANSAT-2 satellite. The Italian Space Agency has established a set of Italian universities and research centers to develop an infrastructure based on hybrid architecture, that is implemented for the overall processing Radio Occultation chain...
This paper discusses to use of cloud computing technology to provide a flexible virtual platform for teachers and students in university to display their creative artifacts on the Internet. The authors compare two kinds of virtualisation technology and introduce the system architecture for the creative platform. The platform allows teachers and students to display their achievements by using the unified...
Through virtualization, a Beowulf cluster running on the physical hardware and network of a general purpose teaching laboratory can provide significant computational power without compromisingâ"in fact increasingâ"the educational value of the lab machines. After describing our implementation of such a virtual cluster in a teaching lab, we analyze its performance by comparing benchmark...
Virtualization is around since many years in IT but in the last years it became one of the hottest topics in the field. In this paper we present our work in introducing virtualization technologies in the educational process in order to reduce costs required by hardware and software upgrades imposed by rapid evolution of technology. The courses most affected by this evolution are those that use equipment...
This paper explores the relationship between I/O scheduling in a virtual machine monitor (VMM) and performance of Map Reduce applications running on the virtual machines (VMs). Traditionally, Map Reduce applications running on the virtual machines perform worse than on the physical machines due to competing for I/O. In this paper, we discuss the effect of I/O scheduling on performance of Map Reduce...
Practical experience is considered a vital part of university level courses in Information Technology (IT). A practical component of computer networking related courses, at the application level, requires multiple servers to be studied by the students. Many of such servers may be incompatible with each other and it may be required that they be installed on different platforms. This issue leads to...
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