OpenMP is an application programming interface (API) that is widely accepted as a de facto
standard for high-level shared-memory parallel programming. It is a portable scalable
programming model that provides a simple and ?exible interface for developing shared-memory
parallel applications in Fortran C and C++. Since its introduction in 1997 OpenMP has gained
support from the - jority of high-performance compiler and hardware vendors. Under the
direction of the OpenMP Architecture Review Board (ARB) the OpenMP speci?cation is undergoing
further improvement. Active research in OpenMP compilers r- time systems tools and
environments continues to drive OpenMP evolution.To
provideaforumforthedisseminationandexchangeofinformationaboutand- periences with OpenMP the
community of OpenMP researchersand developers in academia and industry is organized under
cOMPunity (www.compunity.org). This organization has held workshops on OpenMP since 1999. This
book contains the proceedings of the 5th International Workshop on OpenMP held in Dresden in
June 2009. With sessions on tools benchmarks applications performance and runtime
environments it covered all aspects of the current use of OpenMP. In addition several
contributions presented p- posed extensions to OpenMP and evaluated reference implementations
of those extensions. An invited talk provided the details on the latest speci?cation dev-
opment inside the Architecture Review Board. Together with the two keynotes about OpenMP on
hardware accelerators and future generation processors it demonstrated that OpenMP is suitable
for future generation systems.
