ITPACK project: past, present, and future

Conference · Tue Mar 01 04:00:00 EST 1983

OSTI ID:5580091

Kincaid, D R; Young, Jr, D M

The ITPACK project involves the development of research-oriented mathematical software, based on iterative algorithms, for solving large systems of linear algebraic equations with sparse coefficient matrices. The emphasis is on linear systems arising in the solution of partial differential equations by discretizations such as finite difference or finite element methods. Among other things this project has resulted in the development of a package of subroutines known as ITPACK which is available to the scientific community. Important features of the ITPACK routines include the adaptive determination of the iteration parameters and realistic procedures for terminating the iterative processes. An important application of ITPACK is for use as solution modules in the ELLPACK package of computer routines for solving a class of partial differential equations. We review the objectives of the ITPACK project, summarize the progress made to date and outline plans for future work. A summary is given of work on both software and research that has contributed to the present mathematical software package. The 2C version of ITPACK for scalar computers and a version for use on high performance vector computers are discussed. An overview is given of the developmental work on other software involving more general preconditioners and additional nonsymmetric procedures.

• Research Organization: Texas Univ., Austin (USA). Center for Numerical Analysis
• DOE Contract Number: AS05-81ER10954
• OSTI ID: 5580091
• Report Number(s): CONF-830116-5; ON: DE85012470
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
ALGORITHMS
ANALYTICAL SOLUTION
COMPUTER CODES
DIFFERENTIAL EQUATIONS
EQUATIONS
FINITE ELEMENT METHOD
I CODES
ITERATIVE METHODS
MATHEMATICAL LOGIC
NUMERICAL SOLUTION
PROGRAMMING
VECTOR PROCESSING