Meta-computing for Fluid-Structure Coupled Simulation

Abstract

This chapter presents an experiment performed on a heterogeneous parallel computer cluster that simulates a coupled metacomputing for a fluid-structure. The fluid and the structure simulation codes are executed on parallel computers of different architectures connected by a high-speed network. These codes are linked by a loose coupling method exchanging the boundary data between fluid and structure domains. Loose coupling method has been used to link the computational fluid dynamics (CFD) and the CSD codes. Newly developed communication library Stampi has been used to enable communication among processors on a heterogeneous parallel computer cluster. The metacomputing experiments have shown higher total performance than calculations on a single parallel computer. In particular, although experiments on a wide area network are suffered from large communication cost, it can be hidden behind the CFD computation. The performance evaluation has shown that metacomputing for fluid-structure coupled simulations attains better performance compared with the parallel computing on a single parallel computer.