Introduction to Performance Analysis

The complexity of modern High-Performance-Computing systems impose greatchallenges on running parallel applications efficiently on them.Performance analysis is therefore a key issue to identify bottlenecksand efficiency problems in HPC applications in order to improve andoptimize the performance of these applications.We start with an overview of different performance problems whichfrequently occur in parallel applications and give an introductions tothe concepts of performance analysis. In the second part we will discussselected performance analysis tools in more detail and show how to usethem in order to identify bottlenecks