Abstract
Enhancing the performance of turbulent flow simulations is important as the size of simulations grows with higher Reynolds number. We discuss the performance of our in-house turbulent flow simulation solver, named as DNS-TBL (Direct Numerical Simulation: Turbulent Boundary Layer), on the Intel Xeon Phi™ manycore processors. With bootable Knights Landing processors, the DNS-TBL solver shows excellent parallel scalability and, in particular, shows a 1.6 times better performance in solver time than the original CPU-based version. Current intermediate results serve as a practical case-study which directly shows how much turbulent flow simulations can be accelerated on manycore processors, providing a good reference for the parallelization and optimization schemes in the filed of computational fluid dynamics.