Sixth International Workshop on OpenMP IWOMP 2010 -- Enabling Low-Overhead Hybrid MPI/OpenMP Parallelism with MPC -- A ROSE-Based OpenMP 3.0 Research Compiler Supporting Multiple Runtime Libraries -- Binding Nested OpenMP Programs on Hierarchical Memory Architectures -- A Proposal for User-Defined Reductions in OpenMP -- An Extension to Improve OpenMP Tasking Control -- Towards an Error Model for OpenMP -- How OpenMP Applications Get More Benefit from Many-Core Era -- Topology-Aware OpenMP Process Scheduling -- How to Reconcile Event-Based Performance Analysis with Tasking in OpenMP -- Fuzzy Application Parallelization Using OpenMP -- Hybrid Parallel Programming on SMP Clusters Using XPFortran and OpenMP -- A Case for Including Transactions in OpenMP -- OMPCUDA : OpenMP Execution Framework for CUDA Based on Omni OpenMP Compiler.

This book constitutes the refereed proceedings of the 6th International Workshop on OpenMP, IWOMP 2010, held in Tsukuba City, Japan, in June 2010. The papers are organized in topical sections on Runtime and Optimization, Proposed Extensions to OpenMP, Scheduling and Performance, as well as Hybrid Programming and Accelerators with OpenMP.