### A Distributed Computational Implementation Of A Finite Element Code Using Fortran In Windows 9x Environment.

#### Abstract

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.

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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Güemes 3450

S3000GLN Santa Fe, Argentina

Phone: 54-342-4511594 / 4511595 Int. 1006

Fax: 54-342-4511169

E-mail: amca(at)santafe-conicet.gov.ar

**Asociación Argentina de Mecánica Computacional**Güemes 3450

S3000GLN Santa Fe, Argentina

Phone: 54-342-4511594 / 4511595 Int. 1006

Fax: 54-342-4511169

E-mail: amca(at)santafe-conicet.gov.ar

**ISSN 2591-3522**