On the dynamic resource availability in grids

— Currently deployed grids gather together thousands of computational and storage resources for the benefit of a large community of scientists. However, the large scale, the wide geographical spread, and at times the decision of the rightful resource owners to commit the capacity elsewhere, raises serious resource availability issues. Little is known about the characteristics of the grid resource availability, and of the impact of resource unavailability on the performance of grids. In this work, we make first steps in addressing this twofold lack of information. First, we analyze a long-term availability trace and assess the resource availability characteristics of Grid’5000, an experimental grid environment of over 2,500 processors. The average utilization for the studied trace is increased by almost 5%, when availability is considered. Based on the results of the analysis, we further propose a model for grid resource availability. Our analysis and modeling results show that gr...

• Type: Conference
• Year: 2007
• Where: GRID
• Authors: Alexandru Iosup, Mathieu Jan, Omer Ozan Sonmez, Dick H. J. Epema
• Keywords: Distributed And Parallel Computing, Grid, GRID 2007, Resource, Resource Availability