Multicore processors have become the main computing platform for current and future computer systems. This calls for a forum to discuss the challenges and opportunities of both designing and using multicore systems. The objective of this workshop is to bring together researchers and practitioners from academia and industry to present and discuss the recent work in the area of multicore computing. The workshop is the first of its kind in Sweden, and it is co-organized by Blekinge Institute of Technology and the Swedish Multicore Initiative (http://www.sics.se/multicore/). The technical program was put together by a distinguished program committee consisting of people from both from academia and industry in Sweden. We received 16 extended abstracts. Each abstract was sent to four members of the program committee. In total, we collected 64 review reports. The abstracts were judged based on their merits in terms of relevance to the workshop, significance and originality, as well as the scientific and presentation quality. Based on the reviews, the program committee decided to accept 12 papers for inclusion in the workshop, giving an acceptance rate of 75%. The accepted papers cover a broad range of topics, such as programming techniques and languages, compiler and library support, coherence and consistency issues, and verification techniques for multicore systems.