Coupling DDT and Marmot for Debugging of MPI Applications

Parallel programming is a complex, and, since the multi-core era has dawned, also a more common task that can be alleviated considerably by tools supporting the application development and porting process. Existing tools, namely the MPI correctness checker Marmot and the parallel debugger DDT, have so far been used on a wide range of platforms as stand-alone tools to cover different aspects of correctness debugging. In this paper we will describe first steps towards coupling these two tools to provide application developers with a powerful and user-friendly environment.