Concurrent’s SIMulation Workbench® (SimWB) is a complete modelling environment for developing and executing real-time hardware-in-the-loop and man-in-the-loop simulations. Fully integrated SimWB solutions improve test quality and reduce development and production costs. Concurrent iHawk multiprocessing systems running SimWB are based on COTS components offering the latest, leading-edge processor, chipset, memory and I/O bus technology. With SimWB, individual I/O processes can be targeted to different system cores and I/O buses for parallel execution, thus allowing the simulation loop to run at faster frame rates. SimWB recognizes and utilizes multiple cores by default and there is no limit on the number of cores than can be used by SimWB.