SLATEC Routines --- SPLPMU ---

*DECK SPLPMU
      SUBROUTINE SPLPMU (MRELAS, NVARS, LMX, LBM, NREDC, INFO, IENTER,
     +   ILEAVE, IOPT, NPP, JSTRT, IBASIS, IMAT, IBRC, IPR, IWR, IND,
     +   IBB, ANORM, EPS, UU, GG, RPRNRM, ERDNRM, DULNRM, THETA, COSTSC,
     +   XLAMDA, RHSNRM, AMAT, BASMAT, CSC, WR, RPRIM, WW, BU, BL, RHS,
     +   ERD, ERP, RZ, RG, COLNRM, COSTS, PRIMAL, DUALS, SINGLR, REDBAS,
     +   ZEROLV, STPEDG)
C***BEGIN PROLOGUE  SPLPMU
C***SUBSIDIARY
C***PURPOSE  Subsidiary to SPLP
C***LIBRARY   SLATEC
C***TYPE      SINGLE PRECISION (SPLPMU-S, DPLPMU-D)
C***AUTHOR  (UNKNOWN)
C***DESCRIPTION
C
C     THE EDITING REQUIRED TO CONVERT THIS SUBROUTINE FROM SINGLE TO
C     DOUBLE PRECISION INVOLVES THE FOLLOWING CHARACTER STRING CHANGES.
C
C     USE AN EDITING COMMAND (CHANGE) /STRING-1/(TO)STRING-2/.
C     /REAL (12 BLANKS)/DOUBLE PRECISION/,
C     /SASUM/DASUM/,/SCOPY/DCOPY/,/SDOT/DDOT/,
C     /.E0/.D0/
C
C     THIS SUBPROGRAM IS FROM THE SPLP( ) PACKAGE.  IT PERFORMS THE
C     TASKS OF UPDATING THE PRIMAL SOLUTION, EDGE WEIGHTS, REDUCED
C     COSTS, AND MATRIX DECOMPOSITION.
C     IT IS THE MAIN PART OF THE PROCEDURE (MAKE MOVE AND UPDATE).
C
C     REVISED 821122-1100
C     REVISED YYMMDD
C
C***SEE ALSO  SPLP
C***ROUTINES CALLED  IPLOC, LA05BS, LA05CS, PNNZRS, PRWPGE, SASUM,
C                    SCOPY, SDOT, SPLPDM, XERMSG
C***REVISION HISTORY  (YYMMDD)
C   811215  DATE WRITTEN
C   890531  Changed all specific intrinsics to generic.  (WRB)
C   890605  Removed unreferenced labels.  (WRB)
C   890606  Removed unused COMMON block LA05DS.  (WRB)
C   891214  Prologue converted to Version 4.0 format.  (BAB)
C   900315  CALLs to XERROR changed to CALLs to XERMSG.  (THJ)
C   900328  Added TYPE section.  (WRB)
C***END PROLOGUE  SPLPMU