This book constitutes the refereed proceedings of the 7th International Workshop on Advanced Parallel Processing Technologies, APPT 2007, held in Guangzhou, China, in November 2007. The 78 revised full papers presented were carefully reviewed and selected from 346 submissions. All current aspects in parallel and distributed computing are addressed ranging from hardware and software issues to algorithmic aspects and advanced applications. The papers are organized in topical sections on, advanced microprocessor architecture, parallel distributed system architectures, grid computing, interconnection networks, network protocols, pervasive and mobile computing architectures, task scheduling and load balancing, software engineering, and other issues.