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*DECK DRESOU
SUBROUTINE DRESOU(IPRINT,IPGPT,IPMAC1,IPMAC2,IPFLX,IPGRAD,NG,NREG,
1 NMIL,NUN,MATCOD,KEYFLX,VOL,LNO,RMSD)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Compute the GPT sources corresponding to the gradient of the RMS power
* distribution. Case with no direct effect.
*
*Copyright:
* Copyright (C) 2012 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
* IPRINT print parameter
* IPGPT pointer to the L_GPT data structure.
* IPMAC1 pointer to the actual macrolib structure.
* IPMAC2 pointer to the reference macrolib structure.
* IPFLX pointer to the multigroup flux.
* IPGRAD pointer to the L_OPTIMIZE object.
* NG number of energy groups.
* NREG number of regions.
* NMIL number of material mixtures.
* NUN number of unknowns per energy group.
* MATCOD material mixture indices per region.
* KEYFLX position of averaged fluxes in unknown vector.
* VOL volumes.
* LNO flag set to .true. to exit after calculation of RMS.
*
*Parameters: output
* RMSD RMS error on power distribution.
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) IPGPT,IPMAC1,IPMAC2,IPFLX,IPGRAD
INTEGER IPRINT,NG,NREG,NMIL,NUN,MATCOD(NREG),KEYFLX(NREG)
REAL VOL(NREG)
DOUBLE PRECISION RMSD
LOGICAL LNO
*----
* LOCAL VARIABLES
*----
TYPE(C_PTR) JPMAC1,JPMAC2,KPMAC1,KPMAC2,JPFLX,JPGPT,KPGPT
DOUBLE PRECISION SOUT2,SOUTOT,PW1TOT,PW2TOT,DSUM,AIL,BIL
REAL, ALLOCATABLE, DIMENSION(:) :: POW1,H1,F1,POW2,H2,F2,SUNK,
1 FLUX
CHARACTER HSMG*131
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(POW1(NMIL),H1(NMIL),F1(NMIL),POW2(NMIL),H2(NMIL),
1 F2(NMIL))
*----
* COMPUTE THE ACTUAL AND REFERENCE POWER DISTRIBUTION
*----
POW1(:NMIL)=0.0
POW2(:NMIL)=0.0
JPMAC1=LCMGID(IPMAC1,'GROUP')
JPMAC2=LCMGID(IPMAC2,'GROUP')
DO IG=1,NG
KPMAC1=LCMGIL(JPMAC1,IG)
KPMAC2=LCMGIL(JPMAC2,IG)
CALL LCMLEN(KPMAC1,'FLUX-INTG',ILG,ITYLCM)
IF(ILG.EQ.0) CALL XABORT('DRESOU: MISSING ACTUAL FLUX.')
CALL LCMLEN(KPMAC2,'FLUX-INTG',ILG,ITYLCM)
IF(ILG.EQ.0) CALL XABORT('DRESOU: MISSING REFERENCE FLUX.')
CALL LCMLEN(KPMAC1,'H-FACTOR',ILG,ITYLCM)
IF(ILG.EQ.0) CALL XABORT('DRESOU: MISSING ACTUAL H-FACTOR.')
CALL LCMLEN(KPMAC2,'H-FACTOR',ILG,ITYLCM)
IF(ILG.EQ.0) CALL XABORT('DRESOU: MISSING REFERENCE H-FACTOR.')
CALL LCMGET(KPMAC1,'FLUX-INTG',F1)
CALL LCMGET(KPMAC2,'FLUX-INTG',F2)
CALL LCMGET(KPMAC1,'H-FACTOR',H1)
CALL LCMGET(KPMAC2,'H-FACTOR',H2)
DO IBM=1,NMIL
POW1(IBM)=POW1(IBM)+F1(IBM)*H1(IBM)
POW2(IBM)=POW2(IBM)+F2(IBM)*H2(IBM)
ENDDO
ENDDO
*----
* COMPUTE THE RMS FUNCTIONAL
*----
PW1TOT=0.0D0
PW2TOT=0.0D0
DO IBM=1,NMIL
PW1TOT=PW1TOT+POW1(IBM)
PW2TOT=PW2TOT+POW2(IBM)
ENDDO
RMSD=0.0D0
DO IBM=1,NMIL
RMSD=RMSD+(POW1(IBM)/PW1TOT-POW2(IBM)/PW2TOT)**2
ENDDO
CALL LCMPUT(IPGRAD,'FOBJ-CST-VAL',1,4,RMSD)
IF(IPRINT.GT.0) WRITE(6,100) RMS
IF(LNO) GO TO 10
*----
* COMPUTE THE GRADIENT OF THE RMS FUNCTIONAL
*----
ALLOCATE(SUNK(NUN))
JPFLX=LCMGID(IPFLX,'FLUX')
JPGPT=LCMLID(IPGPT,'ASOUR',1)
KPGPT=LCMLIL(JPGPT,1,NG)
DO IG=1,NG
SUNK(:NUN)=0.0
KPMAC1=LCMGIL(JPMAC1,IG)
CALL LCMGET(KPMAC1,'H-FACTOR',H1)
DO IR=1,NREG
IUNK=KEYFLX(IR)
IF(IUNK.EQ.0) CYCLE
IBM=MATCOD(IR)
IF(IBM.EQ.0) CYCLE
SOUT2=0.0D0
DO JBM=1,NMIL
SOUTOT=0.0D0
IF(IBM.EQ.JBM) SOUTOT=1.0D0
SOUTOT=SOUTOT-POW1(JBM)/PW1TOT
SOUT2=SOUT2+SOUTOT*(POW1(JBM)/PW1TOT-POW2(JBM)/PW2TOT)
ENDDO
SUNK(IUNK)=2.0*VOL(IR)*H1(IBM)*REAL(SOUT2/PW1TOT)
ENDDO
CALL LCMPDL(KPGPT,IG,NUN,2,SUNK)
ENDDO
*----
* CHECK SOURCE ORTHOGONALITY
*----
ALLOCATE(FLUX(NUN))
AIL=0.0D0
BIL=0.0D0
DO IG=1,NG
CALL LCMGDL(KPGPT,IG,SUNK)
CALL LCMGDL(JPFLX,IG,FLUX)
DO IUNK=1,NUN
GAZ=FLUX(IUNK)*SUNK(IUNK)
DAZ=FLUX(IUNK)**2
AIL=AIL+GAZ
BIL=BIL+DAZ
ENDDO
ENDDO
DSUM=ABS(AIL)/ABS(BIL)/REAL(NUN)
IF(IPRINT.GT.0) THEN
WRITE(6,'(/21H DRESOU: DOT PRODUCT=,1P,E11.4)') DSUM
ENDIF
IF(ABS(DSUM).GT.1.0E-5) THEN
WRITE(HSMG,'(36HDRESOU: NON ORTHOGONAL SOURCE (DSUM=,1P,E11.3,
1 2H).)') DSUM
CALL XABORT(HSMG)
ENDIF
DEALLOCATE(FLUX,SUNK)
*----
* SCRATCH STORAGE DEALLOCATION
*----
10 DEALLOCATE(F2,H2,POW2,F1,H1,POW1)
RETURN
*
100 FORMAT(/41H DRESOU: RMS ERROR ON POWER DISTRIBUTION=,1P,E11.4)
END
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