 Torrellas is an IEEE and ACM Fellow and member of the National Computational Science Alliance (NCSA) and the DOE Illinois Center for the Simulation of Advanced Rockets (CSAR).He is currently the Chairman of IEEE Technical Committee on Computer Architecture (TCCA), an Associate Editor of the ACM Transactions on Architecture and Code Optimization (TACO), and a Member of the Advisory Board of the ECE Department, University of Rochester.He previously served as Vice-Chairman and Member of the Advisory Board of IEEE TCCA from 1998 to 2005.