PPoPP is a forum for leading work on all aspects of parallel programming, including foundational results, techniques, tools, and practical experience. In the context of the symposium, "parallel programming" is construed to encompass work on concurrent, multithreaded, multicore, accelerated, multiprocessor, and tightly-clustered systems. Given the rise of multicore processors, PPoPP is particularly interested in work that seeks to transition parallel programming into the computing mainstream.