This book constitutes the thoroughly refereed postproceedings of the 11th International Workshop on Job Scheduling Strategies for Parallel Processing, JSSPP 2005, held in Cambridge, MA, USA in June 2005 in conjunction with the 19th ACM International Conference on Supercomputing (ICS 2005).

The 13 revised full research papers presented went through two rounds of reviewing and improvement. The papers in this volume cover a wide range of parallel architectures, from distributed grids, through clusters, to massively-parallel supercomputers. They are organized in topical sections on modeling and workloads, implementations and deployments, grid scheduling, as well as evaluation and metrics.