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Modern large-scale grid computing for processing advanced science and engineering applications relies on geographically distributed clusters. In such highly distributed environments, estimating the available bandwidth between clusters is a key issue for task scheduling. We analyze the performance of two well known available bandwidth estimation tools, pathload and abget, with the aim of using them...
Grids are systems that involve coordinate resource sharing and problem solving in heterogeneous dynamic environments. In order to make grids effective it is necessary to provide them with the capability of dealing with uncertainties on resource availability and estimation of applications computational and communications demands. This paper presents a procedure for self-adjusting the resources allocated...
Grids are systems that involve coordinate resource sharing and problem solving in heterogeneous dynamic environments. Resource allocation is central to service provisioning in grids. In this paper, a brief survey of resource allocation of twelve existing systems is presented. Moreover, directions for future research are suggested.
This paper introduces a procedure called traffic engineering for grids for enabling grid networks to self-adjust to resource availability. The proposal is based on monitoring the state of resources and on task migration. It involves several layers of the Internet architecture. Experiments executed in NS-2 are used to illustrate the efficacy of the procedure proposed.
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