XtremWeb: A Generic Global Computing System
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This paper describes a scheduling algorithm used to execute parallel and distributed applications on a Global Computing (GC) environment, called XtremWeb-CH (XWCH). XWCH is an improved version of a GC tool called XtremWeb (XW). XWCH is an enrichment of XW allowing it to match P2P concepts: distributed scheduling, distributed communication and development of symmetrical models. The scheduling algorithm takes into account the heterogeneity and volatility of nodes. This paper illustrates the performance of XWCH in a real CPU time consuming application.