A DRMAA-based target system interface framework for UNICORE

The UNICORE grid technology provides a seamless, secure, and intuitive access to distributed grid resources. UNICORE is a full-grown and well-tested grid middleware system that is used in daily production and research projects worldwide. The success of the UNICORE technology can at least partially be explained by the fact that UNICORE consists of a three-tier architecture. In this paper, we present the evolution of one of its tiers that is mainly used for job and resource management. This evolution integrates the distributed resource management application API (DRMAA) of the Global Grid Forum providing UNICORE with a standardized interface to underlying resource management systems and other grid systems