Parallel Computations for Euler Equations Using a Dynamic Load Balancing Technique.

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  • 収束性を考慮した動的負荷分散手法によるオイラー方程式の並列計算

Abstract

A dynamic load balancing technique is applied for solving the Euler equations on networked engineering workstations Message passing is handled by PVM(Parallel Virtual Machine) software. A domain decomposition method is employed to parallelize the algorithm. In this load balancing technique, the convergence criterion is evaluated on each subdomain. When the criterion is satisfied on a subdomain, the computational domain other than that subdomain is redecomposed on each processor. This procedure is performed once for supersonic flow, and several times for transonic flow. In the present approach, the total load of the calculation of two-dimensional Euler equations solvers is reduced by 48% for the test case of supersonic flow in a duct and by 29% for transonic flow.

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