SLATEC Routines --- SSMMTI ---

*DECK SSMMTI
      SUBROUTINE SSMMTI (N, B, X, NELT, IA, JA, A, ISYM, RWORK, IWORK)
C***BEGIN PROLOGUE  SSMMTI
C***PURPOSE  SLAP MSOLVE for LDU Factorization of Normal Equations.
C            This routine acts as an interface between the SLAP generic
C            MMTSLV calling convention and the routine that actually
C                                    -1
C            computes  [(LDU)*(LDU)']  B = X.
C***LIBRARY   SLATEC (SLAP)
C***CATEGORY  D2E
C***TYPE      SINGLE PRECISION (SSMMTI-S, DSMMTI-D)
C***KEYWORDS  ITERATIVE PRECONDITION, LINEAR SYSTEM SOLVE, SLAP, SPARSE
C***AUTHOR  Greenbaum, Anne, (Courant Institute)
C           Seager, Mark K., (LLNL)
C             Lawrence Livermore National Laboratory
C             PO BOX 808, L-60
C             Livermore, CA 94550 (510) 423-3141
C             seager@llnl.gov
C***DESCRIPTION
C       It is assumed that RWORK and IWORK have initialized with
C       the information required for SSMMI2:
C          IWORK(1) = Starting location of IL in IWORK.
C          IWORK(2) = Starting location of JL in IWORK.
C          IWORK(3) = Starting location of IU in IWORK.
C          IWORK(4) = Starting location of JU in IWORK.
C          IWORK(5) = Starting location of L in RWORK.
C          IWORK(6) = Starting location of DINV in RWORK.
C          IWORK(7) = Starting location of U in RWORK.
C       See the DESCRIPTION of SSMMI2 for details.
C***REFERENCES  (NONE)
C***ROUTINES CALLED  SSMMI2
C***REVISION HISTORY  (YYMMDD)
C   871119  DATE WRITTEN
C   881213  Previous REVISION DATE
C   890915  Made changes requested at July 1989 CML Meeting.  (MKS)
C   890922  Numerous changes to prologue to make closer to SLATEC
C           standard.  (FNF)
C   890929  Numerous changes to reduce SP/DP differences.  (FNF)
C   910411  Prologue converted to Version 4.0 format.  (BAB)
C   920511  Added complete declaration section.  (WRB)
C   921113  Corrected C***CATEGORY line.  (FNF)
C   930701  Updated CATEGORY section.  (FNF, WRB)
C***END PROLOGUE  SSMMTI