1. Department of Computing Languages and Systems II, ETS Ingeniería Informática, Campus de Móstoles; Rey Juan Carlos University; 28934; Madrid; Spain
2. Computing Systems Department; University of Castilla-La Mancha; Avda. España s/n; 02071; Albacete; Spain
3. Department of Electrical and Computer Engineering; The University of Texas at Austin; Austin; TX; USA
4. Vector Corp.; Parque Científico y Tecnológico de Albacete, Paseo de la Innovación 3; Centro de Empresas de I+D; 02006; Albacete; Spain