Heterogeneous computing. What is it and do we need it?

Heterogeneous computing promises more compute power while consuming less energy. However employing GPUs and Xeon Phi's come with a hefty price tag. Only software that is highly adapted to these new architectures will gain any performance increase. In my talk I will address these questions: \begin{itemize} \item What is heterogeneous computing? \item How can it help producing better results faster? \item Is it worthwhile exploring for the broader audience? \end{itemize} And finally I will try to shed some light on the question whether the future will really be heterogeneous or not.