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|
*DECK USSIT3
SUBROUTINE USSIT3(MAXNOR,NGRP,MASKG,IRES,IPLI0,IPTRK,IFTRAK,CDOOR,
1 IMPX,NBMIX,NREG,NUN,IPHASE,MAXST,MAT,VOL,KEYFLX,LEAKSW,IREX,
2 SIGGAR,TITR,ICORR,NIRES,NBNRS,CONR,GOLD,IPPT1,IPPT2,VOLMER,
3 UNGAR)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Compute the snapshot weights as required by the resonance spectrum
* expansion (RSE) method:
* a) assume a single resonant isotope;
* b) use the standard solution doors of Dragon.
*
*Copyright:
* Copyright (C) 2023 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
* MAXNOR maximum number of base points.
* NGRP number of energy group.
* MASKG energy group mask pointing on self-shielded groups.
* IRES index of the resonant isotope.
* IPLI0 pointer to the internal microscopic cross section library
* builded by the self-shielding module.
* IPTRK pointer to the tracking (L_TRACK signature).
* IFTRAK file unit number used to store the tracks.
* CDOOR name of the geometry/solution operator.
* IMPX print flag (equal to zero for no print).
* NBMIX number of mixtures in the internal library.
* NREG number of regions.
* NUN number of unknowns in the flux or source vector in one
* energy group and one band.
* IPHASE type of flux solution (=1 use a native flux solution door;
* =2 use collision probabilities).
* MAXST maximum number of fixed point iterations for the ST scattering
* source.
* MAT index-number of the mixture type assigned to each volume.
* VOL volumes.
* KEYFLX pointers of fluxes in unknown vector.
* LEAKSW leakage switch (LEAKSW=.TRUE. if neutron leakage through
* external boundary is present).
* IREX fuel region index assigned to each mixture. Equal to zero
* in non-resonant mixtures or in mixtures not used.
* SIGGAR macroscopic x-s of the non-resonant isotopes in each mixture:
* (*,*,*,1) total; (*,*,*,2) transport correction;
* (*,*,*,3) P0 scattering.
* TITR title.
* ICORR mutual resonance shielding flag (=1 to suppress the model
* in cases it is required in LIB operator).
* NIRES exact number of correlated resonant isotopes.
* NBNRS number of correlated fuel regions.
* CONR number density of the resonant isotopes.
* GOLD type of self-shielding model (=1.0 physical probability
* tables; =-1001.0 resonance spectrum expansion method).
* IPPT1 pointer to LCM directory of each resonant isotope.
* IPPT2 information related to each resonant isotope:
* IPPT2(:,1) index of a resonant region (used with infinite
* dilution case);
* IPPT2(:,2:4) alias name of resonant isotope.
* VOLMER volumes of the resonant regions.
*
*Parameters: output
* UNGAR averaged flux unknowns.
*
*-----------------------------------------------------------------------
*
USE GANLIB
USE DOORS_MOD
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) IPLI0,IPTRK,IPPT1(NIRES)
INTEGER MAXNOR,NGRP,IRES,IFTRAK,IMPX,NBMIX,NREG,NUN,IPHASE,
1 MAXST,MAT(NREG),KEYFLX(NREG),IREX(NBMIX),ICORR,NIRES,NBNRS,
2 IPPT2(NIRES,4)
REAL VOL(NREG),SIGGAR(NBMIX,0:NIRES,NGRP,3),CONR(NBNRS,NIRES),
1 GOLD(NIRES,NGRP),VOLMER(0:NBNRS),UNGAR(NUN,NIRES,NGRP)
CHARACTER CDOOR*12,TITR*72
LOGICAL LEAKSW,MASKG(NGRP)
*----
* LOCAL VARIABLES
*----
REAL ERR1,ERR2
DOUBLE PRECISION T1
CHARACTER CBDPNM*12,TEXT12*12
LOGICAL LEXAC,REBFLG,LSOUR
TYPE(C_PTR) IPLIB,JPLI0,JPLIB1,KPLIB,IPSYS,KPSYS,IOFSET,
1 IPMACR,IPSOU
*----
* ALLOCATABLE ARRAYS
*----
TYPE(C_PTR), ALLOCATABLE, DIMENSION(:) :: JPLIB2,JPLIB3
INTEGER, ALLOCATABLE, DIMENSION(:) :: NPSYS,MRANK
INTEGER, ALLOCATABLE, DIMENSION(:,:) :: NJJ
REAL, ALLOCATABLE, DIMENSION(:) :: SIGTXS,SIGS0X,SIGG
REAL, ALLOCATABLE, DIMENSION(:,:) :: FUN,SUN
REAL, ALLOCATABLE, DIMENSION(:,:,:) :: XFLUX2
TYPE VECTOR_ARRAY
DOUBLE PRECISION, POINTER, DIMENSION(:) :: VECTOR
END TYPE VECTOR_ARRAY
TYPE MATRIX_ARRAY
DOUBLE PRECISION, POINTER, DIMENSION(:,:) :: MATRIX
END TYPE MATRIX_ARRAY
TYPE(VECTOR_ARRAY), ALLOCATABLE, DIMENSION(:) :: SIGT_V,WEIGHT_V,
1 GAMMA_V
TYPE(MATRIX_ARRAY), ALLOCATABLE, DIMENSION(:,:) :: SIGT_M
TYPE(MATRIX_ARRAY), ALLOCATABLE, DIMENSION(:,:,:) :: SCAT_M
TYPE MATRIX_ARRAY_SP
REAL, POINTER, DIMENSION(:,:) :: MATRIX
END TYPE MATRIX_ARRAY_SP
TYPE(MATRIX_ARRAY_SP), ALLOCATABLE, DIMENSION(:) :: PSI_M
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(JPLIB2(NIRES),JPLIB3(NIRES))
ALLOCATE(NJJ(NGRP,NIRES),NPSYS(MAXNOR*NGRP),MRANK(NGRP))
ALLOCATE(SIGT_V(NGRP),SIGT_M(NGRP,NIRES),SCAT_M(NGRP,NGRP,NIRES),
1 WEIGHT_V(NGRP),GAMMA_V(NGRP),PSI_M(NGRP))
*----
* FIND THE NUMBER OF COMPONENTS REQUIRED AND ALLOCATE THE LIST OF
* ASSEMBLY MATRICES.
*----
IPLIB=IPPT1(IRES)
CALL LCMLEN(IPLIB,'NOR',ILONG,ITYLCM)
IF(ILONG.NE.NGRP) THEN
CALL LCMLIB(IPLIB)
CALL XABORT('USSIT3: RANK ARRAY MISSING.')
ENDIF
CALL LCMGET(IPLIB,'NOR',MRANK)
NASM=0
DO IG=1,NGRP
IF(MASKG(IG).AND.(GOLD(IRES,IG).EQ.-1001.)) THEN
NASM=NASM+MRANK(IG)
ENDIF
ENDDO
IF(NASM.EQ.0) GO TO 50
DO JRES=1,NIRES
DO JG=1,NGRP
DO IG=1,NGRP
NULLIFY(SCAT_M(IG,JG,JRES)%MATRIX)
ENDDO
ENDDO
ENDDO
*----
* CREATE A SPECIFIC DIRECTORY FOR IRES-TH RESONANT ISOTOPE.
*----
WRITE(CBDPNM,'(3HCOR,I4.4,1H/,I4.4)') IRES,NIRES
CALL LCMSIX(IPLI0,CBDPNM,1)
JPLI0=LCMGID(IPLI0,'NWT0-PT')
IPSYS=LCMLID(IPLI0,'ASSEMB-RSE',NASM)
CALL LCMSIX(IPLI0,' ',2)
*----
* RECOVER RSE INFORMATION FROM MICROLIB (PART 1)
*----
JPLIB1=LCMGID(IPLIB,'GROUP-RSE')
DO JRES=1,NIRES
WRITE(TEXT12,'(3A4)') (IPPT2(JRES,I),I=2,4)
CALL LCMSIX(IPLIB,TEXT12,1)
IF(JRES.NE.IRES) THEN
JPLIB2(JRES)=LCMGID(IPLIB,'SIGT_M') ! holds SIGT_M information
ELSE
JPLIB2(JRES)=C_NULL_PTR
ENDIF
JPLIB3(JRES)=LCMGID(IPLIB,'SCAT_M') ! holds SCAT_M information
CALL LCMGET(IPLIB,'NJJS00',NJJ(:NGRP,JRES))
CALL LCMSIX(IPLIB,' ',2)
ENDDO
IPOS=1
DO IG=1,NGRP
IF(.NOT.MASKG(IG).OR.(GOLD(IRES,IG).NE.-1001.)) CYCLE
IF(IMPX.GE.9) WRITE(6,'(22H USSIT3: energy group=,I8)') IG
*----
* RECOVER RSE INFORMATION FROM MICROLIB (PART 2)
*----
MI=MRANK(IG)
KPLIB=LCMGIL(JPLIB1,IG)
CALL LCMLEN(KPLIB,'SIGT_V',ILONG,ITYLCM)
IF(ILONG.GT.MAXNOR) CALL XABORT('USSIT3: MAXNOR OVERFLOW.')
CALL LCMGPD(KPLIB,'SIGT_V',IOFSET)
CALL C_F_POINTER(IOFSET,SIGT_V(IG)%VECTOR,(/MI/))
CALL LCMGPD(KPLIB,'WEIGHT_V',IOFSET)
CALL C_F_POINTER(IOFSET,WEIGHT_V(IG)%VECTOR,(/MI/))
CALL LCMGPD(KPLIB,'GAMMA_V',IOFSET)
CALL C_F_POINTER(IOFSET,GAMMA_V(IG)%VECTOR,(/MI/))
DO JRES=1,NIRES
IF(JRES.NE.IRES) THEN
CALL LCMGPL(JPLIB2(JRES),IG,IOFSET)
CALL C_F_POINTER(IOFSET,SIGT_M(IG,JRES)%MATRIX,(/MI,MI/))
ENDIF
IPOS=1
DO JG=1,IG-1
IPOS=IPOS+NJJ(JG,JRES)
ENDDO
DO JG=IG-NJJ(IG,JRES)+1,IG
MJ=MRANK(JG)
CALL LCMGPL(JPLIB3(JRES),IPOS+IG-JG,IOFSET)
CALL C_F_POINTER(IOFSET,SCAT_M(IG,JG,JRES)%MATRIX,(/MI,MJ/))
ENDDO
ENDDO
ENDDO
*----
* INITIALIZE THE SUBGROUP FLUX WITH FUNKNO$USS INFORMATION
*----
IASM=0
DO IG=1,NGRP
IF(.NOT.MASKG(IG).OR.(GOLD(IRES,IG).NE.-1001.)) CYCLE
MI=MRANK(IG)
ALLOCATE(PSI_M(IG)%MATRIX(NUN,MI))
DO IM=1,MI
CALL LCMLEL(IPSYS,IASM+IM,ILONG,ITYLCM)
IF(ILONG.EQ.-1) THEN
KPSYS=LCMGIL(IPSYS,IASM+IM)
CALL LCMGET(KPSYS,'FUNKNO$USS',PSI_M(IG)%MATRIX(:NUN,IM))
ELSE
PSI_M(IG)%MATRIX(:NUN,IM)=REAL(GAMMA_V(IG)%VECTOR(IM))
ENDIF
ENDDO
*----
* COMPUTE GROUPWISE MACROSCOPIC CROSS SECTIONS.
*----
ALLOCATE(SIGTXS(0:NBMIX),SIGS0X(0:NBMIX))
DO IM=1,MI
SIGTXS(0:NBMIX)=0.0
SIGS0X(0:NBMIX)=0.0
DO IBM=1,NBMIX
IND=IREX(IBM)
DO 10 JRES=0,NIRES
IF(JRES.EQ.0) THEN
* ADMIXED NON-RESONANT ISOTOPES.
SIGTXS(IBM)=SIGTXS(IBM)+(SIGGAR(IBM,0,IG,1)-
1 SIGGAR(IBM,0,IG,2))
SIGS0X(IBM)=SIGS0X(IBM)-SIGGAR(IBM,0,IG,2)
ELSE IF((JRES.NE.IRES).AND.(IND.GT.0).AND.(ICORR.EQ.1)) THEN
* ECCO CORRELATION MODEL.
IF((IPPT2(IRES,2).EQ.IPPT2(JRES,2)).AND.
1 (IPPT2(IRES,3).EQ.IPPT2(JRES,3))) THEN
DENSIT=CONR(IND,JRES)
SIGTXS(IBM)=SIGTXS(IBM)+DENSIT*
1 REAL(SIGT_V(IG)%VECTOR(IM))
SIGS0X(IBM)=SIGS0X(IBM)+DENSIT*
1 REAL(SCAT_M(IG,IG,JRES)%MATRIX(IM,IM))
ELSE
DENSIT=CONR(IND,JRES)
SIGS0X(IBM)=SIGS0X(IBM)+DENSIT*
1 REAL(SCAT_M(IG,IG,JRES)%MATRIX(IM,IM))
ENDIF
ELSE IF((JRES.NE.IRES).AND.(IND.GT.0).AND.(ICORR.EQ.0)) THEN
* MUTUAL SHIELDING MODEL OF CORRELATED RESONANT ISOTOPES.
DENSIT=CONR(IND,JRES)
SIGTXS(IBM)=SIGTXS(IBM)+DENSIT*
1 REAL(SIGT_M(IG,JRES)%MATRIX(IM,IM))
SIGS0X(IBM)=SIGS0X(IBM)+DENSIT*
1 REAL(SCAT_M(IG,IG,JRES)%MATRIX(IM,IM))
ENDIF
10 CONTINUE
IF(IND.GT.0) THEN
DENSIT=CONR(IND,IRES)
SIGTXS(IBM)=SIGTXS(IBM)+DENSIT*REAL(SIGT_V(IG)%VECTOR(IM))
SIGS0X(IBM)=SIGS0X(IBM)+DENSIT*
1 REAL(SCAT_M(IG,IG,IRES)%MATRIX(IM,IM))
ENDIF
ENDDO
NPSYS(IASM+IM)=IASM+IM
KPSYS=LCMDIL(IPSYS,IASM+IM)
CALL LCMPUT(KPSYS,'DRAGON-TXSC',NBMIX+1,2,SIGTXS(0))
CALL LCMPUT(KPSYS,'DRAGON-S0XSC',NBMIX+1,2,SIGS0X(0))
ENDDO
IASM=IASM+MI
DEALLOCATE(SIGS0X,SIGTXS)
ENDDO
*----
* ASSEMBLY MATRIX OR REDUCED COLLISION PROBABILITIES CALCULATION.
*----
NANI=1
KNORM=1
NALBP=0
IMPY=MAX(0,IMPX-3)
IF(IPHASE.EQ.1) THEN
* USE A NATIVE DOOR.
ISTRM=1
NW=0
CALL DOORAV(CDOOR,IPSYS,NPSYS,IPTRK,IFTRAK,IMPY,NASM,NREG,
1 NBMIX,NANI,NW,MAT,VOL,KNORM,LEAKSW,TITR,NALBP,ISTRM)
ELSE IF(IPHASE.EQ.2) THEN
* USE A COLLISION PROBABILITY DOOR.
IPIJK=1
ITPIJ=1
CALL DOORPV(CDOOR,IPSYS,NPSYS,IPTRK,IFTRAK,IMPY,NASM,NREG,
1 NBMIX,NANI,MAT,VOL,KNORM,IPIJK,LEAKSW,ITPIJ,.FALSE.,TITR,
2 NALBP)
ENDIF
*----
* LOOP OVER ENERGY GROUPS FOR THE FLUX CALCULATION.
*----
ALLOCATE(XFLUX2(NBNRS,MAXNOR,NGRP))
XFLUX2(:NBNRS,:MAXNOR,:NGRP)=0.0
IASM=0
DO IG=1,NGRP
MI=MRANK(IG)
IF(.NOT.MASKG(IG).OR.(GOLD(IRES,IG).NE.-1001.)) CYCLE
ITER=0
20 ITER=ITER+1
IF(ITER.GT.MAXST) GO TO 30
ERR1=0.0
ERR2=0.0
*----
* COMPUTE THE AVERAGED SOURCE TAKING INTO ACCOUNT CORRELATION EFFECTS.
*----
ALLOCATE(FUN(NUN,MI),SUN(NUN,MI),SIGG(0:NBMIX))
SUN(:NUN,:MI)=0.0
DO IM=1,MI
FUN(:NUN,IM)=PSI_M(IG)%MATRIX(:NUN,IM)
NPSYS(IM)=IASM+IM
SIGG(0)=0.0
DO IBM=1,NBMIX
SIGG(IBM)=REAL(SIGGAR(IBM,0,IG,3)*GAMMA_V(IG)%VECTOR(IM),4)
ENDDO
CALL DOORS(CDOOR,IPTRK,NBMIX,0,NUN,SIGG,SUN(1,IM))
DO JG=1,IG
DO JM=1,MRANK(JG)
IF((JG.EQ.IG).AND.(JM.EQ.IM)) CYCLE
SIGG(0:NBMIX)=0.0
LSOUR=.FALSE.
DO IBM=1,NBMIX
IND=IREX(IBM)
IF(IND.LE.0) CYCLE
DO JRES=1,NIRES
DENSIT=CONR(IND,JRES)
IF((JG.EQ.IG).AND.(JRES.NE.IRES)) THEN
! process off-diagonal terms in SIGT_M(IG,JRES)%MATRIX
LSOUR=.TRUE.
SIGG(IBM)=SIGG(IBM)-REAL(DENSIT*
1 SIGT_M(IG,JRES)%MATRIX(IM,JM),4)
ENDIF
IF(JG.LT.IG-NJJ(IG,JRES)+1) CYCLE
IF(GOLD(IRES,JG).NE.-1001.) CYCLE
LSOUR=.TRUE.
SIGG(IBM)=SIGG(IBM)+DENSIT*REAL(
1 SCAT_M(IG,JG,JRES)%MATRIX(IM,JM),4)
ENDDO ! JRES
ENDDO ! IBM
IF(LSOUR) CALL DOORS(CDOOR,IPTRK,NBMIX,0,NUN,SIGG,
1 SUN(1,IM),PSI_M(JG)%MATRIX(:,JM))
ENDDO ! JM
ENDDO ! JG
ENDDO ! IM
DEALLOCATE(SIGG)
*----
* SOLVE FOR THE MULTIBAND FLUX.
*----
IDIR=0
LEXAC=.FALSE.
IPMACR=C_NULL_PTR
IPSOU=C_NULL_PTR
REBFLG=.FALSE.
CALL DOORFV(CDOOR,IPSYS,NPSYS,IPTRK,IFTRAK,IMPX,MI,NBMIX,IDIR,
1 NREG,NUN,IPHASE,LEXAC,MAT,VOL,KEYFLX,TITR,SUN,FUN,IPMACR,IPSOU,
2 REBFLG)
*----
* CONVERGENCE CONTROL.
*----
DO IM=1,MI
KPSYS=LCMGIL(IPSYS,IASM+IM)
CALL LCMPUT(KPSYS,'FUNKNO$USS',NUN,2,FUN(1,IM))
DO I=1,NREG
IUN=KEYFLX(I)
DELTA=FUN(IUN,IM)-PSI_M(IG)%MATRIX(IUN,IM)
ERR1=MAX(ERR1,ABS(DELTA))
ERR2=MAX(ERR2,ABS(FUN(IUN,IM)))
ENDDO
PSI_M(IG)%MATRIX(:NUN,IM)=FUN(:NUN,IM)
ENDDO
DEALLOCATE(SUN,FUN)
IF(IMPX.GT.2) THEN
WRITE(TEXT12,'(3A4)') (IPPT2(IRES,I),I=2,4)
WRITE(6,'(15H USSIT3: GROUP=,I5,15H. RSE ITERATION,I4,
1 11H. ISOTOPE='',A12,9H''. ERROR=,1P,E11.4,1H.)') IG,
2 ITER,TEXT12,ERR1
ENDIF
IF(ERR1.GT.1.0E5) GO TO 30
IF(ERR1.GT.1.0E-4*ERR2) GO TO 20
IF(IMPX.GT.1) THEN
WRITE(TEXT12,'(3A4)') (IPPT2(IRES,I),I=2,4)
WRITE(6,'(15H USSIT3: GROUP=,I5,24H. RSE ITERATION CONVERGE,
1 6HNCE IN,I4,22H ITERATIONS. ISOTOPE='',A12,2H''.)') IG,
2 ITER,TEXT12
ENDIF
*----
* COMPUTE XFLUX2 FOR IRES IN GROUP IG.
*----
XFLUX2(:NBNRS,:MI,IG)=0.0
DO I=1,NREG
IF(MAT(I).EQ.0) CYCLE
IND=IREX(MAT(I))
IF(IND.EQ.0) CYCLE
IUN=KEYFLX(I)
DO IM=1,MI
XFLUX2(IND,IM,IG)=XFLUX2(IND,IM,IG)+VOL(I)*
1 PSI_M(IG)%MATRIX(IUN,IM)
ENDDO
ENDDO
DO IM=1,MI
DO IND=1,NBNRS
XFLUX2(IND,IM,IG)=XFLUX2(IND,IM,IG)/VOLMER(IND)
ENDDO
ENDDO
*----
* USE SNAPSHOT WEIGHTS TO AVERAGE SUBGROUP FLUX UNKNOWNS.
*----
UNGAR(:NUN,IRES,IG)=0.0
DO IUN=1,NUN
DO IM=1,MI
UNGAR(IUN,IRES,IG)=UNGAR(IUN,IRES,IG)+
1 REAL(WEIGHT_V(IG)%VECTOR(IM)*PSI_M(IG)%MATRIX(IUN,IM),4)
ENDDO
ENDDO
GO TO 40
*----
* ALTERNATIVE TREATMENT IN CASE OF FAILURE OF FIXED POINT ITERATIONS.
* USE A NON-ITERATIVE RESPONSE MATRIX APPROACH.
*----
30 IF(IMPX.GT.0) THEN
WRITE(TEXT12,'(3A4)') (IPPT2(IRES,I),I=2,4)
WRITE(6,'(15H USSIT3: GROUP=,I5,24H. SUBGROUP ITERATION FAI,
1 16HLED FOR ISOTOPE ,A12,32H. USE AN ALTERNATIVE RESPONSE MA,
2 14HTRIX APPROACH.)') IG,TEXT12
ENDIF
CALL USSEXD(MAXNOR,CDOOR,IPLI0,IPTRK,IFTRAK,IMPX,NGRP,IG,IASM,
1 NBMIX,NREG,NUN,IPHASE,MAT,VOL,KEYFLX,IREX,SIGGAR,TITR,NIRES,
2 IRES,NBNRS,MRANK,CONR,GOLD,IPPT1,IPPT2,VOLMER,XFLUX2,UNGAR)
*----
* SAVE XFLUX2 FOR IRES IN GROUP IG.
*----
40 CALL LCMPDL(JPLI0,IG,NBNRS*MI,2,XFLUX2(1,1,IG))
IF(IMPX.GT.2) THEN
DO IND=1,NBNRS
T1=0.0D0
DO IM=1,MI
T1=T1+WEIGHT_V(IG)%VECTOR(IM)*XFLUX2(IND,IM,IG)
ENDDO
WRITE(6,'(31H USSIT3: AVERAGED FLUX IN GROUP,I4,9H AND RESO,
1 11HNANT REGION,I4,21H FOR RESONANT ISOTOPE,I4,2H =,F9.5)')
2 IG,IND,IRES,T1
ENDDO
ENDIF
IASM=IASM+MI
ENDDO
*----
* SCRATCH STORAGE DEALLOCATION.
*----
DEALLOCATE(XFLUX2)
DO IG=1,NGRP
IF(.NOT.MASKG(IG).OR.(GOLD(IRES,IG).NE.-1001.)) CYCLE
DEALLOCATE(PSI_M(IG)%MATRIX)
ENDDO
50 DEALLOCATE(PSI_M,GAMMA_V,WEIGHT_V,SCAT_M,SIGT_M,SIGT_V)
DEALLOCATE(MRANK,NPSYS,NJJ)
DEALLOCATE(JPLIB3,JPLIB2)
RETURN
END
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