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*DECK SHI
      SUBROUTINE SHI(NENTRY,HENTRY,IENTRY,JENTRY,KENTRY)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Interpolation of nuclear properties in a lattice code library using
* the generalized Stamm'ler method.
*
*Copyright:
* Copyright (C) 2002 Ecole Polytechnique de Montreal
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version
*
*Author(s): A. Hebert
*
*Parameters: input/output
* NENTRY  number of LCM objects or files used by the operator.
* HENTRY  name of each LCM object or file. The first option is:
*         HENTRY(1) modification type(L_LIBRARY);
*         HENTRY(2) read-only type(L_TRACK);
*         HENTRY(3) read-only sequential binary tracking file.
*         The second option is:
*         HENTRY(1) creation type(L_LIBRARY);
*         HENTRY(2) read-only type(L_LIBRARY);
*         HENTRY(3) read-only type(L_TRACK);
*         HENTRY(4) read-only sequential binary tracking file.
* IENTRY  type of each LCM object or file:
*         =1 LCM memory object; =2 XSM file; =3 sequential binary file;
*         =4 sequential ascii file.
* JENTRY  access of each LCM object or file:
*         =0 the LCM object or file is created;
*         =1 the LCM object or file is open for modifications;
*         =2 the LCM object or file is open in read-only mode.
* KENTRY  LCM object address or file unit number.
*
*-----------------------------------------------------------------------
*
      USE GANLIB
*----
*  SUBROUTINE ARGUMENTS
*----
      INTEGER      NENTRY,IENTRY(NENTRY),JENTRY(NENTRY)
      TYPE(C_PTR)  KENTRY(NENTRY)
      CHARACTER    HENTRY(NENTRY)*12
*----
*  LOCAL VARIABLES
*----
      PARAMETER(NSTATE=40)
      CHARACTER HSMG*131,TEXT12*12,HSIGN*12,TEXT4*4,CDOOR*12,TITLE*72
      INTEGER IPAR(NSTATE),IGP(NSTATE)
      DOUBLE PRECISION DFLOTT
      LOGICAL LEAKSW
      TYPE(C_PTR) IPLIB,IPTRK
*----
*  ALLOCATABLE ARRAYS
*----
      INTEGER, ALLOCATABLE, DIMENSION(:) :: MAT,IDL,MIX,LSHI,ISONR,ISONA
      REAL, ALLOCATABLE, DIMENSION(:) :: VOL,DEN,SNGAR,SBGAR
*----
*  PARAMETER VALIDATION
*----
      IENT=1
      IF(NENTRY.LE.1) CALL XABORT('SHI: TWO PARAMETERS EXPECTED.')
      IF((IENTRY(1).NE.1).AND.(IENTRY(1).NE.2)) CALL XABORT('SHI: LCM '
     1 //'OBJECT EXPECTED AT LHS.')
      IF(JENTRY(1).EQ.0) THEN
*        INTERNAL LIBRARY CREATION. COPY THE FIRST RHS ON THIS LHS.
         IF(NENTRY.LE.2) CALL XABORT('SHI: THREE PARAMETERS EXPECTED.')
         IF((JENTRY(2).NE.2).OR.((IENTRY(2).NE.1).AND.
     1   (IENTRY(2).NE.2)))  CALL XABORT('SHI: LCM OBJECT IN READ-ONLY'
     2   //'MODE EXPECTED AT FIRST RHS.')
         CALL LCMEQU(KENTRY(2),KENTRY(1))
         IENT=3
      ELSE IF(JENTRY(1).EQ.1) THEN
*        INTERNAL LIBRARY MODIFICATION.
         IENT=2
      ELSE
         CALL XABORT('SHI: INTERNAL LIBRARY IN CREATE OR MODIFICATION M'
     1   //'ODE EXPECTED.')
      ENDIF
      IPLIB=KENTRY(1)
*----
*  RECOVER THE TRACKING OBJECT
*----
      DO 10 I=IENT,NENTRY
      IF((JENTRY(I).EQ.2).AND.(IENTRY(I).LE.2)) THEN
         CALL LCMGTC(KENTRY(I),'SIGNATURE',12,HSIGN)
         IF(HSIGN.EQ.'L_TRACK') THEN
            IPTRK=KENTRY(I)
            GO TO 20
         ENDIF
      ENDIF
   10 CONTINUE
      CALL XABORT('SHI: UNABLE TO FIND A TRACKING OBJECT.')
   20 CALL LCMGTC(IPTRK,'TRACK-TYPE',12,CDOOR)
*----
*  RECOVER TRACKING FILE INFORMATION
*----
      IFTRAK=0
      DO 40 I=IENT+1,NENTRY
      IF(IENTRY(I).EQ.3) THEN
         IFTRAK=FILUNIT(KENTRY(I))
         TEXT12=HENTRY(I)
         IF(JENTRY(I).NE.2) CALL XABORT('SHI: TRACKING FILE '//TEXT12//
     1   ' NOT IN READ-ONLY MODE.')
         GO TO 50
      ENDIF
   40 CONTINUE
*----
*  RECOVER TABULATED FUNCTIONS
*----
   50 CALL XDRTA2
*----
*  RECOVER GENERAL TRACKING INFORMATION
*----
      CALL LCMGET(IPTRK,'STATE-VECTOR',IGP)
      NREG=IGP(1)
      NUN=IGP(2)
      LEAKSW=IGP(3).EQ.0
      IF(CDOOR.EQ.'MCCG') THEN
         CALL LCMLEN(IPTRK,'KEYFLX',LKFL,ITYLCM)
         NFUNL=LKFL/NREG
      ELSE
         NFUNL=1
      ENDIF
      ALLOCATE(MAT(NREG),VOL(NREG),IDL(NREG*NFUNL))
      CALL LCMGET(IPTRK,'MATCOD',MAT)
      CALL LCMGET(IPTRK,'VOLUME',VOL)
      CALL LCMGET(IPTRK,'KEYFLX',IDL)
      CALL LCMLEN(IPTRK,'TITLE',LENGT,ITYLCM)
      IF(LENGT.GT.0) THEN
         CALL LCMGTC(IPTRK,'TITLE',72,TITLE)
      ELSE
         TITLE='*** NO TITLE PROVIDED ***'
      ENDIF
*----
*  RECOVER GENERAL INTERNAL LIBRARY INFORMATION
*----
      CALL LCMGTC(IPLIB,'SIGNATURE',12,HSIGN)
      IF(HSIGN.NE.'L_LIBRARY') THEN
         TEXT12=HENTRY(1)
         CALL XABORT('SHI: SIGNATURE OF '//TEXT12//' IS '//HSIGN//
     1   '. L_LIBRARY EXPECTED.')
      ENDIF
      CALL LCMGET(IPLIB,'STATE-VECTOR',IPAR)
      NBISO=IPAR(2)
      NGRO=IPAR(3)
      ITRANC=IPAR(5)
      IPROB=IPAR(6)
      IGRMIN=IPAR(9)+1
      IGRMAX=IPAR(10)
      NBMIX=IPAR(14)
      NRES=IPAR(15)
      IF(IGP(4).GT.NBMIX) THEN
         WRITE(HSMG,'(43HSHI: THE NUMBER OF MIXTURES IN THE TRACKING,
     1   2H (,I5,50H) IS GREATER THAN THE NUMBER OF MIXTURES IN THE IN,
     2   16HTERNAL LIBRARY (,I5,2H).)') IGP(4),NBMIX
         CALL XABORT(HSMG)
      ENDIF
      ALLOCATE(MIX(NBISO),DEN(NBISO),LSHI(NBISO),SNGAR(NGRO*NBISO),
     1 SBGAR(NGRO*NBISO))
      CALL LCMGET(IPLIB,'ISOTOPESMIX',MIX)
      CALL LCMGET(IPLIB,'ISOTOPESDENS',DEN)
      CALL LCMGET(IPLIB,'ISOTOPESSHI',LSHI)
      CALL LCMGET(IPLIB,'ISOTOPESDSB',SBGAR)
      CALL LCMGET(IPLIB,'ISOTOPESDSN',SNGAR)
*----
*  RECOVER REFERENCE AND ALIAS ISOTOPES NAMES
*----
      ALLOCATE(ISONR(3*NBISO),ISONA(3*NBISO))
      CALL LCMGET(IPLIB,'ISOTOPERNAME',ISONR)
      CALL LCMGET(IPLIB,'ISOTOPESUSED',ISONA)
*----
*  READ THE INPUT DATA
*----
*     DEFAULT OPTIONS:
      IMPX=1
      CALL LCMLEN(IPLIB,'SHIBA',LENLCM,ITYLCM)
      IF(LENLCM.NE.0) THEN
         CALL LCMSIX(IPLIB,'SHIBA',1)
         CALL LCMGET(IPLIB,'STATE-VECTOR',IPAR)
         CALL LCMGET(IPLIB,'EPS-SHIBA',EPS)
         CALL LCMSIX(IPLIB,' ',2)
         IGRMIN=IPAR(1)
         IGRMAX=IPAR(2)
         MAXX0=IPAR(3)
         IBIEFF=IPAR(4)
         IGC=IPAR(5)
         ITRANZ=IPAR(6)
         LEVEL=IPAR(7)
         IPHASE=IPAR(8)
      ELSE
         MAXX0=20
         IBIEFF=0
         IGC=1
         ITRANZ=ITRANC
         LEVEL=0
         EPS=1.0E-4
         IF(CDOOR.EQ.'SYBIL') THEN
            IPHASE=2
         ELSE IF(CDOOR.EQ.'EXCELL') THEN
            IPHASE=2
         ELSE
            IPHASE=1
         ENDIF
      ENDIF
*----
*  READ LIBRARY DATA
*----
   60 CALL REDGET(INDIC,NITMA,FLOTT,TEXT4,DFLOTT)
      IF(INDIC.EQ.10) GO TO 100
      IF(INDIC.NE.3) CALL XABORT('SHI: CHARACTER DATA EXPECTED.')
      IF(TEXT4.EQ.'EDIT') THEN
*        READ THE PRINT INDEX.
         CALL REDGET(INDIC,IMPX,FLOTT,TEXT4,DFLOTT)
         IF(INDIC.NE.1) CALL XABORT('SHI: INTEGER DATA EXPECTED(1).')
      ELSE IF(TEXT4.EQ.'GRMI') THEN
         CALL REDGET(ITYPLU,IGRMIN,FLOTT,TEXT4,DFLOTT)
         IF(ITYPLU.NE.1) CALL XABORT('SHI: INTEGER DATA EXPECTED(2).')
      ELSE IF(TEXT4.EQ.'GRMA') THEN
         CALL REDGET(ITYPLU,IGRMAX,FLOTT,TEXT4,DFLOTT)
         IF(ITYPLU.NE.1) CALL XABORT('SHI: INTEGER DATA EXPECTED(3).')
         IF(IGRMAX.GT.NGRO) THEN
            CALL XABORT('SHI: ILLEGAL NUMBER OF GROUP IN LIBRARY.')
         ENDIF
      ELSE IF(TEXT4.EQ.'MXIT') THEN
         CALL REDGET(ITYPLU,MAXX0,FLOTT,TEXT4,DFLOTT)
         IF(ITYPLU.NE.1) CALL XABORT('SHI: INTEGER DATA EXPECTED(4).')
      ELSE IF(TEXT4.EQ.'EPS') THEN
         CALL REDGET(ITYPLU,NITMA,EPS,TEXT4,DFLOTT)
         IF(ITYPLU.NE.2) CALL XABORT('SHI: REAL DATA EXPECTED.')
      ELSE IF(TEXT4.EQ.'NOLJ') THEN
         IBIEFF=0
      ELSE IF(TEXT4.EQ.'LJ') THEN
         IBIEFF=1
      ELSE IF(TEXT4.EQ.'NOGC') THEN
         IGC=0
      ELSE IF(TEXT4.EQ.'GC') THEN
         IGC=1
      ELSE IF(TEXT4.EQ.'NOTR') THEN
         ITRANZ=0
      ELSE IF(TEXT4.EQ.'TRAN') THEN
         ITRANZ=ITRANC
      ELSE IF(TEXT4.EQ.'LEVE') THEN
         CALL REDGET(ITYPLU,LEVEL,FLOTT,TEXT4,DFLOTT)
         IF(ITYPLU.NE.1) CALL XABORT('SHI: INTEGER DATA EXPECTED(5).')
         IF((LEVEL.LT.0).OR.(LEVEL.GT.2)) CALL XABORT('SHI: BAD LEVEL.')
      ELSE IF(TEXT4.EQ.'ARM') THEN
         IPHASE=1
      ELSE IF(TEXT4.EQ.'PIJ') THEN
         IPHASE=2
      ELSE IF(TEXT4.EQ.';') THEN
         GO TO 100
      ELSE
         CALL XABORT('SHI: '//TEXT4//' IS AN INVALID KEY-WORD.')
      ENDIF
      GO TO 60
*----
*  THE NUMBER OF UNKNOWNS OF A CURRENT-BASED MULTICELL ITERATION IS
*  INCREASED TO HOLD INTERFACE CURRENT COMPONENTS.
*----
  100 IF(IPHASE.EQ.1) THEN
        IF(CDOOR.EQ.'SYBIL') NUN=NUN+IGP(9)
        IF((CDOOR.EQ.'EXCELL').AND.(IGP(7).EQ.5)) NUN=NUN+IGP(28)
      ENDIF
      IF(NBMIX.EQ.0) CALL XABORT('SHI: NBMIX NOT YET DEFINED.')
      IF(NRES.EQ.0) CALL XABORT('SHI: THERE IS NO RESONANT ISOTOPES.')
      IF(NREG.EQ.0) CALL XABORT('SHI: NREG = 0')
      CALL SHIDRV(IPLIB,IPTRK,IFTRAK,LEVEL,NGRO,NBISO,NBMIX,NREG,NUN,
     1 CDOOR,NRES,IMPX,ISONR,ISONA,MIX,DEN,SNGAR,SBGAR,LSHI,IPHASE,
     2 IPROB,MAT,VOL,IDL,LEAKSW,TITLE,IGRMIN,IGRMAX,MAXX0,IBIEFF,IGC,
     3 ITRANZ,EPS)
*----
*  RELEASE GENERAL TRACKING INFORMATION
*----
      DEALLOCATE(IDL,VOL,MAT)
*----
*  RELEASE GENERAL INTERNAL LIBRARY INFORMATION
*----
      DEALLOCATE(ISONA,ISONR,SBGAR,SNGAR,LSHI,DEN,MIX)
      RETURN
      END