Made available in DSpace on 2018-11-26T15:28:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01; Detector simulation is consuming at least half of the HEP computing cycles, and even so, experiments have to take hard decisions on what to simulate, as their needs greatly surpass the availability of computing resources. New experiments still in the design phase such as FCC, CLIC and ILC as well as upg...