CISE Submissions

Item: REP-2004-347

Item:REP-2004-347

Title:Algorithm 8xx: a concise sparse Cholesky factorization package

Timothy A. Davis

Abstract:
The LDL software package is a set of short, concise routines for factorizing symmetric positive-definite sparse matrices, with some applicability to symmetric indefinite matrices. Its primary purpose is to illustrate much of the basic theory of sparse matrix algorithms in as concise a code as possible, including an elegant new method of sparse symmetric factorization that computes the factorization row-by-row but stores it column-by-column. The entire symbolic and numeric factorization consists of a total of only 53 lines of code. The package is written in C, and includes a MATLAB interface.

Supporting File:here

Select Departmental Reports

To select a single entry given the item reference number, enter the reference number in the Item: box. Other select options will then be ignored.

The other select options (Category:, Select by Time:, and Select by Author: can be used in any combination. However, only one of the Select by Author: options can be used. You can either select entries from a specific CISE faculty member, or from any (non faculty) CISE user, or you can enter in part or all of the author's name <-- ' --> (which is case insensitive). But only the FIRST one will be used. For many entries, the username may not have been entered, and in this case the first two options will not work for those entries, but selecting by last name will.

The Display Level: option tells how much information to display for each entry ranging from the lease (Index) to the most (Full Listing).

Item:

Category:

Select by Time:

Select by Author:

CISE Faculty Member:
CISE Member:
Name:

Display Level:

Index
Short Listing
Full Listing

Departmental Report Categories

Technical Reports
	Coordinator: Alexander M Thompson Coordinator: Dan H. Eicher Coordinator: John L. Kramer Jr.

To submit items for this page, please log in on the CISE submit page.