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The following topics are dealt with : grid computing; cloud computing; quality of service; performance evaluation; security issues; parallel computing; distributed computing; peer-to-peer computing; service computing; network communication; sensor network; Internet of things; and high performance geocomputation.
The following topics are dealt with : computer architecture; data intensive and I/O computing; algorithm and application; P2P computing; service-oriented architecture; cluster computing; grid computing; cloud computing; performance evaluation; compilers and language; information retrieval; knowledge discovery; OS/resource management; wireless networks; and pervasive computing.
Virtualization overhead is the main reason for the slow diffusion of virtualization techniques into high-performance computing environments. This paper discusses the issues linked to the performance evaluation of virtual clusters, and presents the implementation of a service that automates the benchmarking and results collection procedure in an existing cloud-on-GRID environment.
Server utilization is typically low (10%-30%) in today's datacenters (or clouds), especially when executing computational jobs with deadlines. Previous studies have shown that it is difficult to improve utilization above 20% without significantly increasing the failure rate of job execution. It is still unknown how to increase utilization while maintaining a low (e.g., 1-5%) failure rate. To solve...
Cloud computing, born in the e-business context, and grid computing, originated in the e-science context, are two different but similar paradigms for managing large sets of distributed computing resources. In the last few years there have been many efforts that aim at integrating them. One of the main problems linked to the use of the virtualization techniques adopted in clouds in the grid and high...
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