Agradecimentos: We would like to thank Alex Nicolau, the Editor-in-Chief of the International Journal on Parallel Programming, for giving us a chance to guest edit this Special Issue, the Program Committee of SBAC-PAD 2013, for their kind and expert work in evaluating these papers, the SBAC-PAD Steering Committee for their expert guidance, and of course the authors for their participation and for making this outstanding issue possible Ver menos