SSLUTI(3)

SYNOPSIS
SUBROUTINE SSLUTI (N, B, X, NELT, IA, JA, A, ISYM, RWORK, IWORK)

NAME
ssluti - SLAP MTSOLV for LDU Factorization. This routine acts as an interface between the SLAP generic MTSOLV calling convention and the routine that actually -T computes (LDU) B = X.

LIBRARY
SLATEC (SLAP)

CATEGORY
D2E

TYPE
SINGLE PRECISION (SSLUTI-S, DSLUTI-D)

KEYWORDS
ITERATIVE PRECONDITION, LINEAR SYSTEM SOLVE, SLAP, SPARSE

AUTHOR
Greenbaum, Anne, (Courant Institute) Seager, Mark K., (LLNL) Lawrence Livermore National Laboratory PO BOX 808, L-60 Livermore, CA 94550 (510) 423-3141 seager@llnl.gov

DESCRIPTION
It is assumed that RWORK and IWORK have initialized with the information required for SSLUI4: IWORK(1) = Starting location of IL in IWORK. IWORK(2) = Starting location of JL in IWORK. IWORK(3) = Starting location of IU in IWORK. IWORK(4) = Starting location of JU in IWORK. IWORK(5) = Starting location of L in RWORK. IWORK(6) = Starting location of DINV in RWORK. IWORK(7) = Starting location of U in RWORK. See the DESCRIPTION of SSLUI4 for details.

REFERENCES
(NONE)

ROUTINES CALLED
SSLUI4

REVISION HISTORY (YYMMDD)
871119 DATE WRITTEN
881213 Previous REVISION DATE
890915 Made changes requested at July 1989 CML Meeting. (MKS)
890922 Numerous changes to prologue to make closer to SLATEC standard. (FNF)
890929 Numerous changes to reduce SP/DP differences. (FNF)
910411 Prologue converted to Version 4.0 format. (BAB)
920511 Added complete declaration section. (WRB)
921113 Corrected C***CATEGORY line. (FNF)
930701 Updated CATEGORY section. (FNF, WRB)