Following the successful PAAP'08 in Hefei, PAAP'09 in Nanning, PAAP'10 in Dalian, and PAAP'11 in Tianjin, PAAP'12 in Taipei, the Sixth International Symposium on Parallel Architectures, Algorithms and Programming (PAAP 2013) will be held in Guangzhou, during December 20-22, 2013. The PAAP 2013 aims at addressing advances in research on parallel computing and information security, covering topics from theoretic studies to technology issues and applications. The conference is to providea forum for scientists and engineers in academia and industry to present their research results and development activities in all aspects of computer engineering and it also provides opportunities for the delegates to exchange new ideas and application experiences face to face, to establish business or research relations and to find global partners for future collaboration, especially. We devoutly wish participants to learn the basic theory of a gradual approach, practical experimental data, new business models, and the latest academic trends from this conference.