# dsllti.f

          SUBROUTINE DSLLTI (N, B, X, NELT, IA, JA, A, ISYM, RWORK, IWORK)
    C***BEGIN PROLOGUE  DSLLTI
    C***PURPOSE  SLAP MSOLVE for LDL' (IC) Factorization.
    C            This routine acts as an interface between the SLAP generic
    C            MSOLVE calling convention and the routine that actually
    C                           -1
    C            computes (LDL')  B = X.
    C***LIBRARY   SLATEC (SLAP)
    C***CATEGORY  D2E
    C***TYPE      DOUBLE PRECISION (SSLLTI-S, DSLLTI-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 DLLTI2:
    C          IWORK(1) = NEL
    C          IWORK(2) = Starting location of IEL in IWORK.
    C          IWORK(3) = Starting location of JEL in IWORK.
    C          IWORK(4) = Starting location of EL in RWORK.
    C          IWORK(5) = Starting location of DINV in RWORK.
    C       See the DESCRIPTION of DLLTI2 for details.
    C***REFERENCES  (NONE)
    C***ROUTINES CALLED  DLLTI2
    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   910502  Corrected conversion error.  (FNF)
    C   920511  Added complete declaration section.  (WRB)
    C   921113  Corrected C***CATEGORY line.  (FNF)
    C   930701  Updated CATEGORY section.  (FNF, WRB)
    C***END PROLOGUE  DSLLTI