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Parallel-in-Space-and-Time Simulation of the Three-Dimensional, Unsteady Navier-Stokes Equations for Incompressible Flow. (arXiv:1705.06149v1 [cs.CE])
来源于:arXiv
In this paper we combine the Parareal parallel-in-time method together with
spatial parallelization and investigate this space-time parallel scheme by
means of solving the three-dimensional incompressible Navier-Stokes equations.
Parallelization of time stepping provides a new direction of parallelization
and allows to employ additional cores to further speed up simulations after
spatial parallelization has saturated. We report on numerical experiments
performed on a Cray XE6, simulating a driven cavity flow with and without
obstacles. Distributed memory parallelization is used in both space and time,
featuring up to 2,048 cores in total. It is confirmed that the
space-time-parallel method can provide speedup beyond the saturation of the
spatial parallelization. 查看全文>>