Accession Number : ADA137767

Title :   Design of Array Processor Software for Nonlinear Structural Analysis.

Descriptive Note : Technical rept. Jun 82-Dec 83,


Personal Author(s) : Sarigul,N ; Jin,M ; Kolar,R ; Kamel,H A

PDF Url : ADA137767

Report Date : Dec 1983

Pagination or Media Count : 41

Abstract : This paper presents ongoing research on the solution of large-scale nonlinear structural problems using a 32-bit minicomputer with an attached 64-bit array processor that communicate via a common memory interface. This configuration is typical of what we see as representative of future work stations with attached specialized processors. A user-oriented software package has been designed to allow the use of the given computer configuration by a typical engineer or a scientific user without a detailed knowledge of the operation of the array processor or/and the complex data handling necessary to create the manipulate the data associated with the solution of large problems. The software was then used to implement typical building blocks of a nonlinear finite element code, and performance measurements were taken. Several test examples are considered using 3-D beam finite elements and the Newton Raphson solution scheme. The array processor could not be utilized as yet, due to the lack of the proper vendor software. Hence, a simulator was designed to predict the performance of the software. The simulator was based on reliable time measurements obtained from previous work with the same array processor, using a 16-bit host computer, as well as experiments with the current 32-bit host computer. (Author)

Descriptors :   *Computer programs, *Systems engineering, *Nonlinear analysis, *Structural analysis, Problem solving, Structural mechanics, Data processing, Minicomputers, Processing equipment, Finite element analysis, Configurations, FORTRAN, Input output processing

Subject Categories : Administration and Management
      Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE