Numerical simulation and modelling using High Performance Computing has evolved into an
established technique in academic and industrial research. At the same time the High
Performance Computing infrastructure is becoming ever more complex. For instance most of the
current top systems around the world use thousands of nodes in which classical CPUs are
combined with accelerator cards in order to enhance their compute power and energy efficiency.
This complexity can only be mastered with adequate development and optimization tools. Key
topics addressed by these tools include parallelization on heterogeneous systems performance
optimization for CPUs and accelerators debugging of increasingly complex scientific
applications and optimization of energy usage in the spirit of green IT. This book represents
the proceedings of the 8 th International Parallel Tools Workshop held October 1-2 2014 in
Stuttgart Germany - which is a forum to discuss the latest advancements in the parallel tools.
