其他摘要：In order to solve large finite element problems, engineers and scientists have used both supercomputers and cluster of workstations. Supercomputers have high acquisition and maintenance costs, and has obsolescence in short period. Clusters of workstations are usually associated with specific network hardware and software, and special implementation techniques are necessary. The aim of this work is to test the viability of obtaining high performance computing using usual low cost PCs connected by low cost network hardware, using neither special operational system nor special programming languages, Only resources usually available in computing laboratories at research centers are used. Specifically, in this work were used PCs with at least 700 MHz processors and 128 Mbytes of RAM, connected by a 100 Mbit/s local network. All machines use windows 9x and the implementation was made using FORTRAN 90 language. An initial application implemented in this computational environment was a Finite Element code for 3D Solid Mechanics analysis in linear elasticity, using 8-nodes 1-integration point bricks with hourglass control, and a conjugated gradient solver using preconditioners. Results of scalability of solution time with the number of PCs used and the size of the problem are shown. Initial results show the viability of this approach, both in solution time and in size of problem that can be solved.
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