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Accounting system is one of the building blocks in the grid computing and cloud computing environments. Despite its growing significance, the quality of accounting service suffers from several problems, including the tight coupling relationship between the accounting methods and the accounting log files, slow updates, and ignorance on the impact of user behavior. To address the above problem, an accounting...
Distributed system resources have become prevalent in ICT departments to lessen the burden of huge expenses incurred by very expensive storage computer systems. Add to this the continuous introduction and ever-growing evolution of simple to complex applications, the demand to access huge quantities of data, intensive computations, powerful simulations, maintaining and offering system resources and...
The new ways of doing science, rooted on the unprecedented processing, communication and storage infrastructures that became available to scientists, are collectively called e-Science. Many research labs now need non-trivial computational power to run e-Science applications. Grid and voluntary computing are well-established solutions that cater to this need, but are not accessible for all labs and...
With the rapid development and wide application of information technologies, computing has being transformed to a model in which services are commoditized and delivered in a manner similar to traditional utilities such as water, electricity, gas, and telephony. Compared with recently focused Cloud Computing, Market Oriented Computing still has its own peculiar applied demand and applied environment...
Cloud computing is a new emerging computing paradigm that advocates supplying users everything as a service. Compared with grid computing, the focus of resource management problem is transformed to resource virtualization and allocation rather than job decomposition and scheduling. It is more urgent to find better solutions for cloud resource allocation than ever before. Although there have been some...
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 has taken commercial computing by storm. However, adoption of cloud computing platforms and services by the scientific community is in its infancy as the performance and monetary cost-benefits for scientific applications are not perfectly clear. This is especially true for desktop grids (aka volunteer computing) applications. We compare and contrast the performance and monetary cost-benefits...
The acquisition of remote IT resources via grid or cloud computing for a certain amount of time, instead of setting up a proprietary IT infrastructure, has attracted much attention during the last years, as technical obstacles are overcome. In order to reduce their maintenance cost of internal IT clusters, many hard- and software providers reconsider to offer these resources in grid and cloud markets...
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