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*DECK BIVACA
SUBROUTINE BIVACA(NENTRY,HENTRY,IENTRY,JENTRY,KENTRY)
*
*-----------------------------------------------------------------------
*
*Purpose:
* BIVAC type (2-D) system matrix assembly operator.
*
*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:
* HENTRY(1): create or modification type(L_SYSTEM);
* HENTRY(2): read-only type(L_MACROLIB);
* HENTRY(3): read-only type(L_TRACK).
* 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.
*
*Comments:
* The BIVACA: calling specifications are:
* SYST := BIVACA: [ SYST} ] MACRO TRACK :: (bivaca\_data) ;
* where
* SYST : name of the \emph{lcm} object (type L\_SYSTEM) containing the
* system matrices. If SYST appears on the RHS, the system matrices
* previously stored in SYST} are kept.
* MACRO : name of the \emph{lcm} object (type L\_MACROLIB) containing the
* macroscopic cross sections and diffusion coefficients.
* TRACK : name of the \emph{lcm} object (type L\_BIVAC) containing the BIVAC
* \emph{tracking}.
* bivaca\_data : structure containing the data to module BIVACA:.
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
INTEGER NENTRY,IENTRY(NENTRY),JENTRY(NENTRY)
CHARACTER HENTRY(NENTRY)*12
TYPE(C_PTR) KENTRY(NENTRY)
*----
* LOCAL VARIABLES
*----
PARAMETER(NSTATE=40)
CHARACTER TEXT4*4,HSIGN*12,TEXT12*12,HSMG*131,CNAM*12
DOUBLE PRECISION DFLOTT
INTEGER IGP(NSTATE),IPAR(NSTATE),IBR(NSTATE)
LOGICAL LDIFF
TYPE(C_PTR) IPSYS,IPMACR,JPMACR,KPMACR,IPTRK
INTEGER, DIMENSION(:), ALLOCATABLE :: MAT
REAL, DIMENSION(:), ALLOCATABLE :: VOL,UN,VII,GAMMA
*----
* PARAMETER VALIDATION.
*----
IF(NENTRY.LE.2) CALL XABORT('BIVACA: THREE PARAMETERS EXPECTED.')
IF((IENTRY(1).NE.1).AND.(IENTRY(1).NE.2)) CALL XABORT('BIVACA: L'
1 //'CM OBJECT EXPECTED AT LHS.')
IF((JENTRY(1).NE.0).AND.(JENTRY(1).NE.1)) CALL XABORT('BIVACA: E'
1 //'NTRY IN CREATE OR MODIFICATION MODE EXPECTED.')
IF((JENTRY(2).NE.2).OR.((IENTRY(2).NE.1).AND.(IENTRY(2).NE.2)))
1 CALL XABORT('BIVACA: LCM OBJECT IN READ-ONLY MODE EXPECTED AT S'
2 //'ECOND RHS.')
IF((JENTRY(3).NE.2).OR.((IENTRY(3).NE.1).AND.(IENTRY(3).NE.2)))
1 CALL XABORT('BIVACA: LCM OBJECT IN READ-ONLY MODE EXPECTED AT F'
2 //'IRST RHS.')
CALL LCMGTC(KENTRY(3),'SIGNATURE',12,HSIGN)
IF(HSIGN.NE.'L_TRACK') THEN
TEXT12=HENTRY(3)
CALL XABORT('BIVACA: SIGNATURE OF '//TEXT12//' IS '//HSIGN//
1 '. L_TRACK EXPECTED.')
ENDIF
CALL LCMGTC(KENTRY(3),'TRACK-TYPE',12,HSIGN)
IF(HSIGN.NE.'BIVAC') THEN
TEXT12=HENTRY(3)
CALL XABORT('BIVACA: TRACK-TYPE OF '//TEXT12//' IS '//HSIGN//
1 '. BIVAC EXPECTED.')
ENDIF
HSIGN='L_SYSTEM'
IPSYS=KENTRY(1)
CALL LCMPTC(IPSYS,'SIGNATURE',12,HSIGN)
IPMACR=KENTRY(2)
IPTRK=KENTRY(3)
TEXT12=HENTRY(2)
CALL LCMPTC(IPSYS,'LINK.MACRO',12,TEXT12)
TEXT12=HENTRY(3)
CALL LCMPTC(IPSYS,'LINK.TRACK',12,TEXT12)
*----
* RECOVER GENERAL TRACKING INFORMATION.
*----
CALL LCMGET(IPTRK,'STATE-VECTOR',IGP)
NEL=IGP(1)
NLF=IGP(14)
ISCAT=IGP(16)
LDIFF=(ISCAT.LT.0)
ISCAT=ABS(ISCAT)
IF((NLF.NE.0).AND.(IGP(15).NE.1)) CALL XABORT('BIVACA: ONLY SPN '
1 //'DISCRETIZATIONS ARE ALLOWED.')
ALLOCATE(MAT(NEL),VOL(NEL))
CALL LCMGET(IPTRK,'MATCOD',MAT)
CALL LCMGET(IPTRK,'VOLUME',VOL)
*----
* RECOVER MACROLIB PARAMETERS.
*----
CALL LCMGTC(IPMACR,'SIGNATURE',12,HSIGN)
IF(HSIGN.NE.'L_MACROLIB') THEN
TEXT12=HENTRY(2)
CALL XABORT('BIVACA: SIGNATURE OF '//TEXT12//' IS '//HSIGN//
1 '. L_MACROLIB EXPECTED.')
ENDIF
CALL LCMGET(IPMACR,'STATE-VECTOR',IPAR)
NGRP=IPAR(1)
NBMIX=IPAR(2)
NANI=IPAR(3)
NBFIS=IPAR(4)
NALBP=IPAR(8)
IF(IGP(4).GT.NBMIX) THEN
WRITE(HSMG,'(46HBIVACA: THE NUMBER OF MIXTURES IN THE TRACKING,
1 2H (,I5,51H) IS GREATER THAN THE NUMBER OF MIXTURES IN THE MAC,
2 7HROLIB (,I5,2H).)') IGP(4),NBMIX
CALL XABORT(HSMG)
ENDIF
*
IMPX=1
IUNIT=0
IOVEL=0
10 CALL REDGET(INDIC,NITMA,FLOTT,TEXT4,DFLOTT)
IF(INDIC.EQ.10) GO TO 40
IF(INDIC.NE.3) CALL XABORT('BIVACA: CHARACTER DATA EXPECTED.')
IF(TEXT4.EQ.'EDIT') THEN
CALL REDGET(INDIC,IMPX,FLOTT,TEXT4,DFLOTT)
IF(INDIC.NE.1) CALL XABORT('BIVACA: INTEGER DATA EXPECTED(1).')
ELSE IF(TEXT4.EQ.'UNIT') THEN
* COMPUTE THE UNITARY WEIGHTING MATRIX.
IUNIT=1
ALLOCATE(UN(NBMIX),GAMMA(NALBP))
UN(:NBMIX)=1.0
CALL BIVASM('RM',1,IPTRK,IPSYS,IMPX,NBMIX,NEL,0,1,0,MAT,VOL,
1 GAMMA,UN)
DEALLOCATE(GAMMA,UN)
ELSE IF(TEXT4.EQ.'OVEL') THEN
* COMPUTE THE RECIPROCAL NEUTRON VELOCITIES MATRIX.
IOVEL=1
JPMACR=LCMGID(IPMACR,'GROUP')
ALLOCATE(VII(NBMIX),GAMMA(NALBP))
DO 30 IGR=1,NGRP
KPMACR=LCMGIL(JPMACR,IGR)
CALL LCMLEN(KPMACR,'OVERV',LENGT,ITYLCM)
IF(LENGT.EQ.0) THEN
CALL XABORT('BIVACA: NO ''VELOCITY'' INFORMATION.')
ELSE IF(LENGT.GT.NBMIX) THEN
CALL XABORT('BIVACA: INVALID LENGTH FOR ''VELOCITY'' IN'
1 //'FORMATION.')
ENDIF
CALL LCMGET(KPMACR,'OVERV',VII)
WRITE(CNAM,'(1HV,2I3.3)') IGR,IGR
CALL BIVASM(CNAM,1,IPTRK,IPSYS,IMPX,NBMIX,NEL,0,1,0,MAT,VOL,
1 GAMMA,VII)
30 CONTINUE
DEALLOCATE(GAMMA,VII)
ELSE IF(TEXT4.EQ.';') THEN
GO TO 40
ELSE
CALL XABORT('BIVACA: '//TEXT4//' IS AN INVALID KEY WORD.')
ENDIF
GO TO 10
*----
* SET THE STATE VECTOR FOR THE L_SYSTEM OBJECT
*----
40 IBR(:NSTATE)=0
IBR(1)=NGRP
IBR(2)=IGP(11)
IBR(4)=1
IF(NLF.GT.0) IBR(4)=11
IF(IUNIT.EQ.1) IBR(5)=1
IBR(7)=NBMIX
NAN=MIN(ISCAT,NANI)
IBR(8)=NLF
CALL LCMPUT(IPSYS,'STATE-VECTOR',NSTATE,1,IBR)
*----
* BIVAC SYSTEM MATRIX ASSEMBLY.
*----
IF(NLF.EQ.0) THEN
* DIFFUSION THEORY.
CALL BIVSYS(IPTRK,IPMACR,IPSYS,IMPX,NGRP,NEL,NBFIS,NALBP,MAT,
1 VOL,NBMIX)
ELSE
* SIMPLIFIED PN THEORY.
CALL BIVSPS(IPTRK,IPMACR,IPSYS,IMPX,NGRP,NEL,NLF,NAN,NBFIS,
1 NALBP,LDIFF,MAT,VOL,NBMIX)
ENDIF
*
IF(IMPX.GE.3) CALL LCMLIB(IPSYS)
*----
* RELEASE GENERAL TRACKING INFORMATION.
*----
DEALLOCATE(VOL,MAT)
RETURN
END
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