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In this paper the parallel algorithm of preconditioned conjugate gradient method (PCGM) is presented and implemented on DELL workstation cluster. Optimization techniques for the sparse matrix vector multiplication are adopted in programming. The storage schemes are analyzed in detail. The numerical results show that the designed parallel algorithm has good parallel performance on the high performance...
NetSolve is a kind of grid middleware used for science computing. In this article, the architecture and operational principle of NetSolve system are firstly analyzed. Moreover a numerical experiment is given. NetSolveparallel PCG for solving linear equation Ax=b has been implemented in this experiment, the performance of it is also presented.
A parallel algorithm for nonlinear transient dynamic analysis of large structures is presented in this paper. An unconditionally stable Newmark-?? method (average acceleration technique) is employed for time integration. The proposed parallel algorithm is devised using overlapped domains, unlike most of the existing parallel algorithms which are basically derived using nonoverlapped domains. A predictor-corrector...
On the basis of mode synthesis analysis, parallel algorithm of solving large-scale structural eigen problem is presented in this paper. The eigenmode of the structure is solved using subspace iterative parallel method. The substructure subspace iterative method is implemented using the stiffness matrix and mass matrix of the substructures without assembling the stiffness and mass matrix of whole structure...
A parallel preconditioned conjugate gradient iterative algorithm for finite element problems with coarse-mesh/fine-mesh formulation is presented in this paper. An efficient preconditioner is derived from the multigrid stiffness matrix. The algorithm is implemented on a cluster of workstation. Example of solution of simple linear elastic problem on rectangular grids is presented and parallel performance...
Parallel computing has become a promising trend in science and engineering computing. In this paper, parallel finite element method using domain decomposition technique is adapted to a distributed parallel environment of workstation cluster. The algorithm is presented for solving the conjugate gradient method on a parallel platform with element based domain decomposition. Using the developed code,...
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