A Comparison of Parallel Programming Models for Multiblock Flow Computations

摘要

A study is presented of the implementation of four different parallel programming models in a code that solves the fluid flow equations on block structured meshes. Performance results obtained on a number of distributed-memory parallel computer systems are given, in particular, for a 1024 processor Cray T3D system. Using the appropriate programming model, it is shown that excellent performance scaling can be obtained even for small problem sizes. The relative merits of each programming model in terms of ease of use, functionality, and performance are assessed.