Parallel Applications has become one of most demanded subjects on Science Computing for multiple purposes as wheather, biologics, human body, economy, Video On-Demand, image processing, and so on. Now, these applications has to optimize the use of resources in order to increase the performance. This book intends to provide an idea about performance tuning based on resources management strategies for composite applications. Composite applications are defined as those which are composed by two (or more) parallel structures as Master/Worker, Pipeline, SPMD and so on. I sincerely hope to provide a useful material for those who needs it. Thank you