Submissions of relevant research on GPU Computing are invited to this minisymposium, organized as part of the 2009 International Conference on Parallel Processing and Applied Mathematics (PPAM 2009: Wroclaw, Poland, September 13-16, 2009) by April 10, 2009. Topics of interests include, but are not limited to, the development of techniques and tools (e.g., compilers, high-level application programming interfaces, etc.) that improve the programmability of GPUs as well as practical demonstrations of the potential of GPUs in the solution of scientific, engineering and commercial applications. Best papers presented at the minisymposium will be considered for a special issue of Concurrency and Computation: Practice & Experience. For further details, visit GPUCOMP2009.