A parallel compact-TVD method for compressible fluid dynamics employing shared and distributed-memory paradigms

Fico, Vincenzo and Emerson, David and Reese, Jason (2011) A parallel compact-TVD method for compressible fluid dynamics employing shared and distributed-memory paradigms. Computers and Fluids, 45 (1). pp. 172-176. ISSN 0045-7930

[img] PDF
Reese_JM_Pure_A_parallel_compact_TVD_method_for_compressible_fluid_dynamics..._distributed_memory_paradigms_05_Nov_2010.pdf
Preprint

Download (556kB)

    Abstract

    A novel multi-block compact-TVD finite difference method for the simulation of compressible flows is presented. The method combines distributed and shared-memory paradigms to take advantage of the configuration of modern supercomputers that host many cores per shared-memory node. In our approach a domain decomposition technique is applied to a compact scheme using explicit flux formulas at block interfaces. This method offers great improvement in performance over earlier parallel compact methods that rely on the parallel solution of a linear system. A test case is presented to assess the accuracy and parallel performance of the new method.