HP MLIB User's Guide Vol. 2 7th Ed.

Chapter 13 Sparse Linear Equations 939

Reordering and symbolic factorization DSLEOR

Example The sparse matrix has been communicated to the page using DSLEIN and

DSLEI1, DSLEIE, and DSLEIF, and DSLEIC or DSLEIM. The next step is

obtaining good reordering and performing symbolic factorization for the

numeric factorization phase. The value of MAXZER = 0 is used so that no extra

ﬁll occurs in the factorization.

INTEGER*4 IER

REAL*8 GLOBAL(150)

CALL DSLEOR (0,GLOBAL,IER)

IF ( IER .NE. 0 ) THEN

handle error condition

ENDIF