A network of supercomputers and high-performance workstations appears to be the only reasonable way to provide adequate computing resources for the Grand Challenge problems of the next century. Such a col-lection of computers and supporting software envi-ronments is called a virtual computing

We present a high-fidelity monitoring infrastructure that enables real-time analysis and self-adaptation at both the systems and applications level in virtual computing environments. We believe that such an infrastructure is needed as each paradigm shift (in this case to virtual computing

Abstract. The purpose of virtual computing environment is to improve resource utilization by providing a unified integrated operating platform for users and applications based on aggregation of heterogeneous and autonomous resources. With the rapid development in recent years, hypervisor

As the size and complexity of high performance computing applications continue to increase, their computing, storage and connectivity requirements become more and more difficult to accommodate on any single computing platform. The Virtual Computing Environment (VCE) combines heterogeneous computing

applications as Metacomputing environment. In this paper, we present the design and the experimental results with the Adaptive Distributed Virtual Computing Environment (ADViCE) being developed at The University of Arizona and Syracuse University. The ADViCE provides an e cient web-based approach

, at machine and network levels, are maturing and enabling mutually isolated virtual computation environments for executing arbitrary parallel/distributed applications on top of such a shared physical infrastructure. In this paper, we go one step further by supporting autonomic adaptation of virtual

and enabling mutually isolated virtual computation environments for executing arbitrary parallel/distributed applications on top of such a shared physical infrastructure. In this paper, we take one step further by supporting autonomic adaptation of virtual computation environments as active. integrated

virtualized server environment allows computing resources to be shared among multiple performance-isolated platforms called virtual machines. By dynamically provisioning virtual machines, consolidating the workload, and turning servers on and off as needed, data center operators can maintain the desired

The HEAVEN project aims to create a European advanced services platform offering a multipurpose hosting of operational applications in research, science, business and community services.

Abstract: A unified framework based on Petri-net for the modeling of service behavior and QoS is proposed. Based on this framework a set of service consistency rules are derived to improve the accuracy of service discovery and to ensure the system consistency in service substitution. A middleware named SOBECA (service-oriented, behavior and capability support architecture) compatible with current Web services standards is developed to make a proof of concept of the framework. In SOBECA the service description is extended with behavior and quality