Message-Passing Interface - Selected Topics and Best Practices

The Message-Passing Interface (MPI) is a widely-used standard library for programming parallel applications using the distributed-memory model. In the first part of this talk we will give a short overview over concepts and properties of modern HPC hardware architectures as well as basic programming concepts. A brief introduction into a design strategy for parallel algorithms is presented.The focus of the second part will be on the Message-Passing interface. After a short overview over general MPI properties and features we will present selected MPI topics including Derived Datatypes, MPI_Info objects and One-sided Communication and discuss best practices for their usage