MC-PM2: Multi-Cluster Approach With PM2

Due to heterogeneity in modern computing systems, methodological and technological problems arise for the development of parallel applications. Heterogeneity occurs for instance at architecture level, when processing units use diierent data representation or exhibit various performances. At interconnection level, heterogeneity can be found in the programming interfaces and in the communication performances. In this paper, we focus on problems related to het-erogeneity in the frame of interconnected clusters of workstations. In order to help the programmer to overcome these problems, we propose an extension to the multi-threaded programming environment PM 2. It facilitates the development of eecient parallel applications on such systems. The implementation of this extension is then described, the mechanisms involved are fundamental for an environment for meta-computing.