Invasive computing with iOMP

This paper describes an extension to OpenMP for invasive computing. iOMP is being developed within the framework of the Transregional Collaborative Research Centre 89 (TRR89) funded by the German Research Foundation (DFG). Invasive computing allows the programmer to write resource aware parallel programs. The programs can specify to the resource management which and how many resource are required for execution. In addition, resource aware programs can adapt to a certain amount of resources available to their execution. iOMP is being developed in the context of scientific computing where novel algorithms tend to be more dynamic, e.g., by refining the grid dynamically to increase the quality of the solution in certain areas of the simulated domain. The main advantage of invasive computing in this context is the better utilization of resources compared to a static allocation.