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 was 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 was the first of its kind in Sweden, and was co-organized by Blekinge Institute of Technology (http://www.bth.se/) and the Swedish Multicore Initiative (http://www.swedishmulticore.se/). The technical program was put together by a distinguished program committee consisting of people from both 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. This workshop was the result of many people’s effort. First of all, I would like to thank Monica Nilsson and Madeleine Rovegård for their help with many practical arrangements and organizational issues around the workshop. Then, I would like to thank the program committee for their dedicated and hard work, especially finishing all reviews on time despite the short time frame so we could send out author notifications as scheduled. I would also like to thank the steering committee of the Sweden Multicore Initiative for valuable and fruitful discussions about how to make this workshop successful. Finally, I would like to thank the SIGARCH Computer Architecture News editor Doug DeGroot for his help when compiling this special issue. On behalf of the program committee, I hope you find the included papers interesting. The workshop will continue as an annual activity within the Swedish Multicore Initiative.