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*DECK MCGFST
SUBROUTINE MCGFST(NGEFF,KPSYS,NCONV,KPN,K,NREG,NANI,NFUNL,NPJJM,
1 KEYFLX,KEYCUR,PJJIND,NZON,V,S,PHIOUT,IDIR)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Addition of the contribution to the flux of the regional source
* when the 'source term isolation' option is turned on for the
* method of characteristics integration.
*
*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): R. Le Tellier
*
*Parameters: input
* NGEFF number of groups to process.
* KPSYS pointer array for each group properties.
* NCONV logical array of convergence status for each group (.TRUE.
* not converged).
* KPN total number of unknowns per group in flux vector.
* K total number of volumes for which specific values
* of the neutron flux and reactions rates are required.
* NREG number of volumes.
* NANI scattering anisotropy (=1 for isotropic scattering).
* NFUNL number of moments of the flux (in 2D : NFUNL=NANI*(NANI+1)/2).
* NPJJM number of pjj modes to store for STIS option.
* KEYFLX position of flux elements in flux vector.
* KEYCUR position of current elements in flux vector.
* PJJIND index for pjj(nu <- nu') modes.
* NZON index-number of the mixture type assigned to each volume.
* V volumes.
* S source vector.
* IDIR direction of fundamental current for TIBERE with MoC
* (=0,1,2,3).
*
*Parameters: input/output
* PHIOUT flux vector.
*
*-----------------------------------------------------------------------
*
USE GANLIB
IMPLICIT NONE
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) KPSYS(NGEFF)
INTEGER NGEFF,KPN,K,NREG,NANI,NFUNL,NPJJM,KEYFLX(NREG,NFUNL),
1 KEYCUR(K-NREG),PJJIND(NPJJM,2),NZON(K),IDIR
REAL V(K)
DOUBLE PRECISION S(KPN,NGEFF),PHIOUT(KPN,NGEFF)
LOGICAL NCONV(NGEFF)
*----
* LOCAL VARIABLES
*----
TYPE(C_PTR) JPSYS
INTEGER II,I,IND,IMOD,INU,INUP,INDP
REAL, ALLOCATABLE, DIMENSION(:,:) :: PJJ,PJJI
CHARACTER*12 NPJJT,NPJJIT
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(PJJ(NREG,NPJJM),PJJI(NREG,NPJJM))
*
IF(IDIR .EQ.0) THEN
NPJJT='PJJ$MCCG'
NPJJIT=' '
ELSEIF(IDIR .EQ. 1) THEN
NPJJT='PJJX$MCCG'
NPJJIT='PJJXI$MCCG'
ELSEIF(IDIR .EQ. 2) THEN
NPJJT='PJJY$MCCG'
NPJJIT='PJJYI$MCCG'
ELSE
NPJJT='PJJZ$MCCG'
NPJJIT='PJJZI$MCCG'
ENDIF
IF(NANI.LE.0) CALL XABORT('MCGFST: INVALID VALUE OF NANI.')
DO II=1,NGEFF
IF(NCONV(II)) THEN
JPSYS=KPSYS(II)
CALL LCMGET(JPSYS,NPJJT,PJJ)
IF(IDIR.GT.0) CALL LCMGET(JPSYS,NPJJIT,PJJI)
DO I=1,K
IF(V(I).GT.0.) THEN
IF(NZON(I).LT.0) THEN
IND=KEYCUR(I-NREG)
PHIOUT(IND,II)=PHIOUT(IND,II)/V(I)
ELSE
DO INU=1,NFUNL
IND=KEYFLX(I,INU)
PHIOUT(IND,II)=PHIOUT(IND,II)/V(I)
ENDDO
* DIVIDE THE EXTRA TERMS XI, YI, AND ZI BY THE VOLUME
IF(IDIR.NE.0) THEN
IND=KEYFLX(I,NFUNL)
PHIOUT(IND+KPN/2,II)=PHIOUT(IND+KPN/2,II)/V(I)
ENDIF
DO IMOD=1,NPJJM
INU=PJJIND(IMOD,1)
INUP=PJJIND(IMOD,2)
IND=KEYFLX(I,INU)
INDP=KEYFLX(I,INUP)
PHIOUT(IND,II)=PHIOUT(IND,II)+
1 PJJ(I,IMOD)*S(INDP,II)
IF(IDIR .GT. 0) THEN
PHIOUT(IND+KPN/2,II)=PHIOUT(IND+KPN/2,II)+
1 PJJI(I,IMOD)*S(INDP,II)
ENDIF
IF(INU.NE.INUP) THEN
PHIOUT(INDP,II)=PHIOUT(INDP,II)+
1 PJJ(I,IMOD)*S(IND,II)
IF(IDIR .GT. 0) THEN
PHIOUT(INDP+KPN/2,II)=PHIOUT(INDP+KPN/2,II)+
1 PJJI(I,IMOD)*S(IND,II)
ENDIF
ENDIF
ENDDO
ENDIF
ENDIF
ENDDO
ENDIF
ENDDO
*----
* SCRATCH STORAGE DEALLOCATION
*----
DEALLOCATE(PJJI,PJJ)
*
RETURN
END
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