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Global Computing achieves high throughput computing by harvesting a very large number of unused computing resources connected to the Internet. This parallel computing model targets a parallel architecture defined by a very high number of nodes, poor communication performance and continuously varying resources. The unprecedented scale of the Global Computing(More)
Global Computing platforms, large scale clusters and future TeraGRID systems gather thousands of nodes for computing parallel scientific applications. At this scale, node failures or disconnections are frequent events. This Volatility reduces the MTBF of the whole system in the range of hours or minutes.We present MPICH-V, an automatic Volatility tolerant(More)
Global Computing systems belong to the class of large scale distributed systems. Their properties: high computational , storage and communication performance potentials, high resilience make them attractive in academia and industry as computing infrastructures in complement to more classical infrastructures such as clusters or supercomputers. However,(More)
Global Computing achieves highly distributed computations by harvesting a very large number of unused computing resources connected to the Internet. Although the basic techniques for Global Computing are well understood, several issues remain unadressed, such as the ability to run a large variety of applications, economical models for resource management,(More)
—Virtualization tools are becoming popular in the context of Grid Computing because they allow running multiple operating systems on a single host and provide a confined execution environment. Emulators and experimental tools like Microgrid and PlanetLab use multiple virtual nodes on every platedorm nodes. Thus, to build a large scale emulator for Grid/P2P(More)
In this paper, we present XtremWeb, a Global Computing platform used to generate monte carlos showers in Auger 1. XtremWeb main goal, as a Global Computing platform, is to compute distributed applications using idle time of widely interconnected machines. It is especially dedicated to-but not limited to-multi-parameters applications such as monte carlos(More)
Grid computing presents two major challenges for deploying large scale applications across wide area networks gathering volunteers PC and clusters/parallel computers as computational resources: security and fault tolerance. This paper presents a lightweight Grid solution for the deployment of multi-parameters applications on a set of clusters protected by(More)
Given current complexity of Grid technologies, the lack of security of P2P systems and the rigidity of VPN technologies make sharing resources belonging to different institutions still technically difficult. We propose a new approach called " Instant Grid " (IG), which combines various Grid, P2P and VPN approaches, allowing simple deployment of applications(More)