Welcome to participate in ICA3PP 2015, Zhangjiajie, China, November 18-20, 2015! Zhangjiajie is an emerging tourist destination famous for its unique natural scenery and abundant tourism resources. It is located in the northwest of Hunan province, about 400 kilometers away from Changsha, the capital of Hunan province, covering a total area of 9,563 square kilometers, of which 76% are mountainous area. Out of its total population of 1.62 million, almost 72% belong to ethnic minority groups, including Tujia, Bai and Miao nationalities. Zhangjiajie National Forest Park was established by the State Council in 1982 as the first National Forest Park of China. Zhangjiajie was listed into the World Natural Heritage Catalogue by the UNESCO in 1992. Zhangjiajie was awarded the title of "World Geological Park" in 2004. ICA3PP is now recognized as the main regular event of the world that is covering many dimensions of parallel algorithms and architectures, encompassing fundamental theoretical approaches, practical experimental projects, and commercial components and systems. As applications of computing systems have permeated in every aspect of our daily life, the power of computing system has become increasingly critical. This conference provides a forum for academics and practitioners from countries around the world to exchange ideas for improving the efficiency, performance, reliability, security and interoperability of computing systems and applications.