@article{kim2019time-, author = {Kim, Young Jin and Mavris, Dimitri and Fujimoto, Richard}, title = {Time- and space-parallel simulation of air traffic networks}, year = {2019}, month = {December}, abstract = {Computer simulations are widely used to design and evaluate air traffic systems. A fast time simulation capability is essential to effectively explore the consequences of decisions in airspace design, air traffic management, and operations. A parallel simulation approach is proposed to accelerate fast time simulation of air traffic networks that exploits both temporal and spatial parallelisms. A time-parallel algorithm is first described that simulates different time intervals concurrently and uses a fix up computation that exploits the scheduled nature of commercial air traffic to address the problem of dependencies between time segments. The time-parallel algorithm is then extended with a space-parallel simulation approach using Time Warp to simulate each time segment in parallel thereby increasing the amount of parallelism that can be exploited. The time and space-parallel algorithms are evaluated using a simulation of the U.S. National Airspace System (NAS). Experimental data is presented demonstrating that this approach can achieve greater acceleration than what can be achieved by exploiting time-parallel or space-parallel simulation techniques alone.}, url = {http://approjects.co.za/?big=en-us/research/publication/time-and-space-parallel-simulation-of-air-traffic-networks/}, pages = {1213-1228}, journal = {SIMULATION (SAGE)}, volume = {95}, number = {12}, }