Wearepleasedtopresenttheproceedingsofthe8thInternationalConferenceon Parallel Processing and Applied Mathematics - PPAM 2009, which was held in Wroc law, Poland, September 13-16, 2009. It was organized by the Department ofComputer andInformationSciencesof theCzestochowaUniversity ofTechno- logy,withthehelpoftheWroc lawUniversityofTechnology,FacultyofComputer Science and Management. The main organizer was Roman Wyrzykowski. PPAM is a biennial conference. Seven previous events have been held in di erentplacesinPolandsince1994.Theproceedingsofthelastfourconferences havebeenpublishedbySpringerintheLectureNotes in Computer Science series (Nal ecz' ow, 2001,vol.2328;Czestochowa,2003,vol.3019;Poznan ', 2005,vol.3911; Gdan 'sk, 2007, vol. 4967). The PPAM conferences have become an international forum for exchanging ideasbetweenresearchersinvolvedinparallelanddistributedcomputing,incl- ing theory and applications, as well as applied and computational mathematics. The focus of PPAM 2009 was on models, algorithms, and software tools which facilitate e cient and convenient utilization of modern parallel and distributed computing architectures, as well as on large-scale applications. Thismeeting gatheredmorethan210participantsfrom 32countries.A strict refereeing process resulted in the acceptance of 129 contributed presentations, while approximately46% of the submissionswere rejected. Regular tracksof the conference covered such important ?elds of parallel/distributed/grid computing and applied mathematics as: - Parallel/distributed architectures and mobile computing - Numerical algorithms and parallel numerics - Parallel and distributed non-numerical algorithms - Tools and environments for parallel/distributed/grid computing - Applications of parallel/distributed computing - Applied mathematics and neural networks Plenary and Invited Speakers The plenary and invited talks were presented by: - Srinivas Aluru from the Iowa State University (USA) - Dominik Behr from AMD (USA) - Ewa Deelman from the University of Southern California (USA) - Jack Dongarra from the University of Tennessee and Oak Ridge National