Reference: Bohn, R.B. and Garboczi, E.J. National Institute of Standards and Technology Internal Report 6997, Technology Administration, U.S. Department of Commerce (2003).

(PDF Version of Original Paper)

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User Manual for Finite Element and Finite Difference Programs: A Parallel Version of NISTIR−6269

Robert B. Bohn
Information Technology Laboratory

Edward J. Garboczi
Building and Fire Research Laboratory
NIST
Gaithersburg, MD 20899
March 4, 2003


Abstract

This document contains the descriptions, algorithms, user information and listings of the parallel Fortran90/MPI versions of the suite of programs found in NIST-IR 6269 [1], Finite Element and Finite Difference Programs for Computing the Linear Electric and Elastic Properties of Digital Images of Random Materials. These programs use 3-D digital image data on random materials as input and then calculate the effective properties of the random material when subjected to applied fields (for example, mechanical/thermal stresses and AC/DC electric fields).

The purpose behind this undertaking is to execute these programs in a parallel computing environment (for example, Linux clusters), so as to decrease real-time execution, increase the potential problem size, and increase digital resolution/problem accuracy.

Keywords: computer modeling; concrete; elastic moduli; electrical conductivity; finite difference; finite element; MPI; parallel computing; random materials; thermal elasticity

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