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|
*DECK FLDADJ
SUBROUTINE FLDADJ(IPTRK,IPSYS,IPFLUX,LL4,ITY,NUN,NGRP,ICL1,ICL2,
1 IMPX,EPS2,NADI,MAXOUT,MAXINR,EPSINR,ADECT,FKEFF)
*
*-----------------------------------------------------------------------
*
*Purpose:
* Solution of a multigroup eigenvalue system for the calculation of the
* adjoint neutron flux in TRIVAC. Use the preconditionned power method
* with a two-parameter SVAT acceleration technique.
*
*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
* IPTRK L_TRACK pointer to the tracking information.
* IPSYS L_SYSTEM pointer to system matrices.
* IPFLUX L_FLUX pointer to the solution.
* LL4 order of the system matrices.
* ITY type of solution (2: classical Trivac; 3: Thomas-Raviart).
* NUN number of unknowns in each energy group.
* NGRP number of energy groups.
* ICL1 number of free iterations in one cycle of the inverse power
* method.
* ICL2 number of accelerated iterations in one cycle.
* IMPX print parameter: =0: no print ; =1: minimum printing;
* =2: iteration history is printed; =3: solution is printed.
* TITR title.
* EPS2 convergence criteria for the flux.
* NADI number of inner ADI iterations per outer iteration.
* MAXOUT maximum number of outer iterations.
* MAXINR maximum number of thermal iterations.
* EPSINR thermal iteration epsilon.
* ADECT initial estimate of the unknown vector.
*
*Parameters: output
* FKEFF effective multiplication factor.
* ADECT converged unknown vector.
*
*Reference:
* A. H\'ebert, 'Preconditioning the power method for reactor
* calculations', Nucl. Sci. Eng., 94, 1 (1986).
*
*-----------------------------------------------------------------------
*
USE GANLIB
*----
* SUBROUTINE ARGUMENTS
*----
TYPE(C_PTR) IPTRK,IPSYS,IPFLUX
INTEGER LL4,ITY,NUN,NGRP,ICL1,ICL2,IMPX,NADI,MAXOUT,MAXINR
REAL FKEFF,EPS2,EPSINR,ADECT(NUN,NGRP)
*----
* LOCAL VARIABLES
*----
PARAMETER (EPS1=1.0E-5)
CHARACTER*12 TEXT12
LOGICAL LOGTES
DOUBLE PRECISION AEAE,AEAG,AEAH,AGAG,AGAH,AHAH,BEBE,BEBG,BEBH,
1 BGBG,BGBH,BHBH,AEBE,AEBG,AEBH,AGBE,AGBG,AGBH,AHBE,AHBG,AHBH,
2 X,DXDA,DXDB,Y,DYDA,DYDB,Z,DZDA,DZDB,F,D2F(2,3),EVAL,ALP,BET,
3 FMIN
DOUBLE PRECISION, PARAMETER :: ALP_TAB(24) = (/ 0.2, 0.4, 0.6,
1 0.8, 1.0, 1.2, 1.5, 2.0, 10.0, 15.0, 20.0, 25.0, 30.0, 35.0,
2 40.0, 45.0, 50.0, 55.0, 60.0, 65.0, 70.0, 75.0, 80.0, 85.0 /)
DOUBLE PRECISION, PARAMETER :: BET_TAB(11) = (/ -1.0, -0.8, -0.6,
1 -0.4, -0.2, 0.0, 0.2, 0.4, 0.6, 0.8, 1.0 /)
REAL, DIMENSION(:,:), ALLOCATABLE :: GRAD1,GRAD2,GAR1,GAR2,GAR3
REAL, DIMENSION(:), ALLOCATABLE :: GAF1,GAF2,GAF3
REAL, DIMENSION(:), POINTER :: AGAR
TYPE(C_PTR) AGAR_PTR
*----
* SCRATCH STORAGE ALLOCATION
*----
ALLOCATE(GRAD1(NUN,NGRP),GRAD2(NUN,NGRP),GAR1(NUN,NGRP),
1 GAR2(NUN,NGRP),GAR3(NUN,NGRP),GAF1(NUN),GAF2(NUN),GAF3(NUN))
*
* TKT : CPU TIME FOR THE SOLUTION OF LINEAR SYSTEMS.
* TKB : CPU TIME FOR BILINEAR PRODUCT EVALUATIONS.
TKT=0.0
TKB=0.0
CALL KDRCPU(TK1)
CALL MTOPEN(IMPX,IPTRK,LL4)
IF(LL4.GT.NUN) CALL XABORT('FLDADJ: INVALID NUMBER OF UNKNOWNS.')
*----
* PRECONDITIONED POWER METHOD
*----
EVAL=1.0D0
VVV=0.0
ISTART=1
NNADI=NADI
TEST=0.0
IF(IMPX.GE.1) WRITE (6,600) NADI
IF(IMPX.GE.2) WRITE (6,610)
DO 35 IGR=1,NGRP
WRITE(TEXT12,'(1HA,2I3.3)') IGR,IGR
CALL MTLDLM(TEXT12,IPTRK,IPSYS,LL4,ITY,ADECT(1,IGR),GAR1(1,IGR))
DO 30 JGR=1,NGRP
IF(JGR.EQ.IGR) GO TO 30
WRITE(TEXT12,'(1HA,2I3.3)') JGR,IGR
CALL LCMLEN(IPSYS,TEXT12,ILONG,ITYLCM)
IF(ILONG.EQ.0) GO TO 30
IF(ITY.EQ.13) THEN
CALL MTLDLM(TEXT12,IPTRK,IPSYS,LL4,ITY,ADECT(1,JGR),GAF1(1))
DO 10 I=1,LL4
GAR1(I,IGR)=GAR1(I,IGR)-GAF1(I)
10 CONTINUE
ELSE
CALL LCMGPD(IPSYS,TEXT12,AGAR_PTR)
CALL C_F_POINTER(AGAR_PTR,AGAR,(/ ILONG /))
DO 20 I=1,ILONG
GAR1(I,IGR)=GAR1(I,IGR)-AGAR(I)*ADECT(I,JGR)
20 CONTINUE
ENDIF
30 CONTINUE
35 CONTINUE
CALL KDRCPU(TK2)
TKB=TKB+(TK2-TK1)
*
M=0
40 M=M+1
*----
* EIGENVALUE EVALUATION
*----
CALL KDRCPU(TK1)
AEBE=0.0D0
BEBE=0.0D0
DO 95 IGR=1,NGRP
DO 50 I=1,LL4
GAF1(I)=0.0
50 CONTINUE
DO 80 JGR=1,NGRP
WRITE(TEXT12,'(1HB,2I3.3)') JGR,IGR
CALL LCMLEN(IPSYS,TEXT12,ILONG,ITYLCM)
IF(ILONG.EQ.0) GO TO 80
CALL LCMGPD(IPSYS,TEXT12,AGAR_PTR)
CALL C_F_POINTER(AGAR_PTR,AGAR,(/ ILONG /))
DO 60 I=1,ILONG
GAF1(I)=GAF1(I)+AGAR(I)*ADECT(I,JGR)
60 CONTINUE
80 CONTINUE
DO 90 I=1,LL4
AEBE=AEBE+GAR1(I,IGR)*GAF1(I)
BEBE=BEBE+GAF1(I)**2
GRAD1(I,IGR)=GAF1(I)
90 CONTINUE
95 CONTINUE
EVAL=AEBE/BEBE
CALL KDRCPU(TK2)
TKB=TKB+(TK2-TK1)
*----
* DIRECTION EVALUATION
*----
DO 140 IGR=NGRP,1,-1
CALL KDRCPU(TK1)
DO 100 I=1,LL4
GRAD1(I,IGR)=REAL(EVAL)*GRAD1(I,IGR)-GAR1(I,IGR)
100 CONTINUE
DO 130 JGR=NGRP,IGR+1,-1
WRITE(TEXT12,'(1HA,2I3.3)') JGR,IGR
CALL LCMLEN(IPSYS,TEXT12,ILONG,ITYLCM)
IF(ILONG.EQ.0) GO TO 130
IF(ITY.EQ.13) THEN
CALL MTLDLM(TEXT12,IPTRK,IPSYS,LL4,ITY,GRAD1(1,JGR),GAF1(1))
DO 110 I=1,LL4
GRAD1(I,IGR)=GRAD1(I,IGR)+GAF1(I)
110 CONTINUE
ELSE
CALL LCMGPD(IPSYS,TEXT12,AGAR_PTR)
CALL C_F_POINTER(AGAR_PTR,AGAR,(/ ILONG /))
DO 120 I=1,ILONG
GRAD1(I,IGR)=GRAD1(I,IGR)+AGAR(I)*GRAD1(I,JGR)
120 CONTINUE
ENDIF
130 CONTINUE
CALL KDRCPU(TK2)
TKB=TKB+(TK2-TK1)
*
CALL KDRCPU(TK1)
WRITE(TEXT12,'(1HA,2I3.3)') IGR,IGR
CALL FLDADI(TEXT12,IPTRK,IPSYS,LL4,ITY,GRAD1(1,IGR),NNADI)
CALL KDRCPU(TK2)
TKT=TKT+(TK2-TK1)
140 CONTINUE
*----
* PERFORM THERMAL (UP-SCATTERING) ITERATIONS
*----
IF(MAXINR.GT.1) THEN
CALL FLDTHR(IPTRK,IPSYS,IPFLUX,.TRUE.,LL4,ITY,NUN,NGRP,ICL1,
1 ICL2,IMPX,NNADI,0,MAXINR,EPSINR,ITER,TKT,TKB,GRAD1)
ENDIF
*----
* DISPLACEMENT EVALUATION
*----
F=0.0D0
DELS=ABS(REAL((EVAL-VVV)/EVAL))
VVV=REAL(EVAL)
CALL KDRCPU(TK1)
*----
* EVALUATION OF THE TWO ACCELERATION PARAMETERS ALP AND BET
*----
ALP=1.0D0
BET=0.0D0
N=0
AEAE=0.0D0
AEAG=0.0D0
AEAH=0.0D0
AGAG=0.0D0
AGAH=0.0D0
AHAH=0.0D0
BEBG=0.0D0
BEBH=0.0D0
BGBG=0.0D0
BGBH=0.0D0
BHBH=0.0D0
AEBG=0.0D0
AEBH=0.0D0
AGBE=0.0D0
AGBG=0.0D0
AGBH=0.0D0
AHBE=0.0D0
AHBG=0.0D0
AHBH=0.0D0
DO 175 IGR=1,NGRP
WRITE(TEXT12,'(1HA,2I3.3)') IGR,IGR
CALL MTLDLM(TEXT12,IPTRK,IPSYS,LL4,ITY,GRAD1(1,IGR),GAR2(1,IGR))
DO 170 JGR=1,NGRP
IF(JGR.EQ.IGR) GO TO 170
WRITE(TEXT12,'(1HA,2I3.3)') JGR,IGR
CALL LCMLEN(IPSYS,TEXT12,ILONG,ITYLCM)
IF(ILONG.EQ.0) GO TO 170
IF(ITY.EQ.13) THEN
CALL MTLDLM(TEXT12,IPTRK,IPSYS,LL4,ITY,GRAD1(1,JGR),GAF1(1))
DO 150 I=1,LL4
GAR2(I,IGR)=GAR2(I,IGR)-GAF1(I)
150 CONTINUE
ELSE
CALL LCMGPD(IPSYS,TEXT12,AGAR_PTR)
CALL C_F_POINTER(AGAR_PTR,AGAR,(/ ILONG /))
DO 160 I=1,ILONG
GAR2(I,IGR)=GAR2(I,IGR)-AGAR(I)*GRAD1(I,JGR)
160 CONTINUE
ENDIF
170 CONTINUE
175 CONTINUE
IF(1+MOD(M-ISTART,ICL1+ICL2).GT.ICL1) THEN
DO 205 IGR=1,NGRP
GAF1(:LL4)=0.0
GAF2(:LL4)=0.0
GAF3(:LL4)=0.0
DO 190 JGR=1,NGRP
WRITE(TEXT12,'(1HB,2I3.3)') JGR,IGR
CALL LCMLEN(IPSYS,TEXT12,ILONG,ITYLCM)
IF(ILONG.EQ.0) GO TO 190
CALL LCMGPD(IPSYS,TEXT12,AGAR_PTR)
CALL C_F_POINTER(AGAR_PTR,AGAR,(/ ILONG /))
DO 180 I=1,ILONG
GAF1(I)=GAF1(I)+AGAR(I)*ADECT(I,JGR)
GAF2(I)=GAF2(I)+AGAR(I)*GRAD1(I,JGR)
GAF3(I)=GAF3(I)+AGAR(I)*GRAD2(I,JGR)
180 CONTINUE
190 CONTINUE
DO 200 I=1,LL4
* COMPUTE (A ,A )
AEAE=AEAE+GAR1(I,IGR)**2
AEAG=AEAG+GAR1(I,IGR)*GAR2(I,IGR)
AEAH=AEAH+GAR1(I,IGR)*GAR3(I,IGR)
AGAG=AGAG+GAR2(I,IGR)**2
AGAH=AGAH+GAR2(I,IGR)*GAR3(I,IGR)
AHAH=AHAH+GAR3(I,IGR)**2
* COMPUTE (B ,B )
BEBG=BEBG+GAF1(I)*GAF2(I)
BEBH=BEBH+GAF1(I)*GAF3(I)
BGBG=BGBG+GAF2(I)**2
BGBH=BGBH+GAF2(I)*GAF3(I)
BHBH=BHBH+GAF3(I)**2
* COMPUTE (A ,B )
AEBG=AEBG+GAR1(I,IGR)*GAF2(I)
AEBH=AEBH+GAR1(I,IGR)*GAF3(I)
AGBE=AGBE+GAR2(I,IGR)*GAF1(I)
AGBG=AGBG+GAR2(I,IGR)*GAF2(I)
AGBH=AGBH+GAR2(I,IGR)*GAF3(I)
AHBE=AHBE+GAR3(I,IGR)*GAF1(I)
AHBG=AHBG+GAR3(I,IGR)*GAF2(I)
AHBH=AHBH+GAR3(I,IGR)*GAF3(I)
200 CONTINUE
205 CONTINUE
*
210 N=N+1
IF(N.GT.10) GO TO 215
* COMPUTE X(M+1)
X=BEBE+ALP*ALP*BGBG+BET*BET*BHBH+2.0D0*(ALP*BEBG+BET*BEBH
1 +ALP*BET*BGBH)
DXDA=2.0D0*(BEBG+ALP*BGBG+BET*BGBH)
DXDB=2.0D0*(BEBH+ALP*BGBH+BET*BHBH)
* COMPUTE Y(M+1)
Y=AEAE+ALP*ALP*AGAG+BET*BET*AHAH+2.0D0*(ALP*AEAG+BET*AEAH
1 +ALP*BET*AGAH)
DYDA=2.0D0*(AEAG+ALP*AGAG+BET*AGAH)
DYDB=2.0D0*(AEAH+ALP*AGAH+BET*AHAH)
* COMPUTE Z(M+1)
Z=AEBE+ALP*ALP*AGBG+BET*BET*AHBH+ALP*(AEBG+AGBE)
1 +BET*(AEBH+AHBE)+ALP*BET*(AGBH+AHBG)
DZDA=AEBG+AGBE+2.0D0*ALP*AGBG+BET*(AGBH+AHBG)
DZDB=AEBH+AHBE+ALP*(AGBH+AHBG)+2.0D0*BET*AHBH
* COMPUTE F(M+1)
F=X*Y-Z*Z
D2F(1,1)=2.0D0*(BGBG*Y+DXDA*DYDA+X*AGAG-DZDA**2-2.0D0*Z*AGBG)
D2F(1,2)=2.0D0*BGBH*Y+DXDA*DYDB+DXDB*DYDA+2.0D0*X*AGAH
1 -2.0D0*DZDA*DZDB-2.0D0*Z*(AGBH+AHBG)
D2F(2,2)=2.0D0*(BHBH*Y+DXDB*DYDB+X*AHAH-DZDB**2-2.0D0*Z*AHBH)
D2F(2,1)=D2F(1,2)
D2F(1,3)=DXDA*Y+X*DYDA-2.0D0*Z*DZDA
D2F(2,3)=DXDB*Y+X*DYDB-2.0D0*Z*DZDB
* SOLUTION OF A LINEAR SYSTEM.
CALL ALSBD(2,1,D2F,IER,2)
IF(IER.NE.0) GO TO 215
ALP=ALP-D2F(1,3)
BET=BET-D2F(2,3)
IF(ALP.GT.100.0) GO TO 215
IF((ABS(D2F(1,3)).LE.1.0D-4).AND.(ABS(D2F(2,3)).LE.1.0D-4))
1 GO TO 220
GO TO 210
*
* alternative algorithm in case of Newton-Raphton failure
215 IF(IMPX.GT.0) WRITE(6,'(/30H FLDADJ: FAILURE OF THE NEWTON,
1 55H-RAPHTON ALGORIHTHM FOR COMPUTING THE OVERRELAXATION PA,
2 9HRAMETERS.)')
IAMIN=999
IBMIN=999
FMIN=HUGE(FMIN)
DO IA=1,SIZE(ALP_TAB)
ALP=ALP_TAB(IA)
DO IB=1,SIZE(BET_TAB)
BET=BET_TAB(IB)
* COMPUTE X
X=BEBE+ALP*ALP*BGBG+BET*BET*BHBH+2.0D0*(ALP*BEBG+BET*BEBH
1 +ALP*BET*BGBH)
* COMPUTE Y
Y=AEAE+ALP*ALP*AGAG+BET*BET*AHAH+2.0D0*(ALP*AEAG+BET*AEAH
1 +ALP*BET*AGAH)
* COMPUTE Z
Z=AEBE+ALP*ALP*AGBG+BET*BET*AHBH+ALP*(AEBG+AGBE)
1 +BET*(AEBH+AHBE)+ALP*BET*(AGBH+AHBG)
* COMPUTE F
F=X*Y-Z*Z
IF(F.LT.FMIN) THEN
IAMIN=IA
IBMIN=IB
FMIN=F
ENDIF
ENDDO
ENDDO
ALP=ALP_TAB(IAMIN)
BET=BET_TAB(IBMIN)
220 BET=BET/ALP
IF((ALP.LT.1.0D0).AND.(ALP.GT.0.0D0)) THEN
ALP=1.0D0
BET=0.0D0
ELSE IF(ALP.LE.0.0D0) THEN
ISTART=M+1
ALP=1.0D0
BET=0.0D0
ENDIF
DO 235 IGR=1,NGRP
DO 230 I=1,LL4
GRAD1(I,IGR)=REAL(ALP)*(GRAD1(I,IGR)+REAL(BET)*GRAD2(I,IGR))
GAR2(I,IGR)=REAL(ALP)*(GAR2(I,IGR)+REAL(BET)*GAR3(I,IGR))
230 CONTINUE
235 CONTINUE
ENDIF
CALL KDRCPU(TK2)
TKB=TKB+(TK2-TK1)
*
LOGTES=(M.LT.ICL1).OR.(MOD(M-ISTART,ICL1+ICL2).EQ.ICL1-1)
IF(LOGTES.AND.(DELS.LE.EPS1))THEN
DELT=0.0
DO 290 IGR=1,NGRP
GAF1(:LL4)=0.0
GAF2(:LL4)=0.0
DO 250 JGR=1,NGRP
WRITE(TEXT12,'(1HB,2I3.3)') JGR,IGR
CALL LCMLEN(IPSYS,TEXT12,ILONG,ITYLCM)
IF(ILONG.EQ.0) GO TO 250
CALL LCMGPD(IPSYS,TEXT12,AGAR_PTR)
CALL C_F_POINTER(AGAR_PTR,AGAR,(/ ILONG /))
DO 240 I=1,ILONG
GAF1(I)=GAF1(I)+AGAR(I)*ADECT(I,JGR)
GAF2(I)=GAF2(I)+AGAR(I)*GRAD1(I,JGR)
240 CONTINUE
250 CONTINUE
DELN=0.0
DELD=0.0
DO 280 I=1,LL4
ADECT(I,IGR)=ADECT(I,IGR)+GRAD1(I,IGR)
GAR1(I,IGR)=GAR1(I,IGR)+GAR2(I,IGR)
GRAD2(I,IGR)=GRAD1(I,IGR)
GAR3(I,IGR)=GAR2(I,IGR)
DELN=MAX(DELN,ABS(GAF2(I)))
DELD=MAX(DELD,ABS(GAF1(I)))
280 CONTINUE
IF(DELD.NE.0.0) DELT=MAX(DELT,DELN/DELD)
290 CONTINUE
IF(IMPX.GE.2) WRITE (6,615) M,AEAE,AEAG,AEAH,AGAG,AGAH,AHAH,
1 BEBE,ALP,BET,EVAL,F,DELS,DELT,N,BEBG,BEBH,BGBG,BGBH,BHBH,AEBE,
2 AEBG,AEBH,AGBE,AGBG,AGBH,AHBE,AHBG,AHBH
IF(DELT.LE.EPS2) GO TO 310
ELSE
DO 305 IGR=1,NGRP
DO 300 I=1,LL4
ADECT(I,IGR)=ADECT(I,IGR)+GRAD1(I,IGR)
GAR1(I,IGR)=GAR1(I,IGR)+GAR2(I,IGR)
GRAD2(I,IGR)=GRAD1(I,IGR)
GAR3(I,IGR)=GAR2(I,IGR)
300 CONTINUE
305 CONTINUE
IF(IMPX.GE.2) WRITE (6,620) M,AEAE,AEAG,AEAH,AGAG,AGAH,AHAH,
1 BEBE,ALP,BET,EVAL,F,DELS,N,BEBG,BEBH,BGBG,BGBH,BHBH,AEBE,
2 AEBG,AEBH,AGBE,AGBG,AGBH,AHBE,AHBG,AHBH
ENDIF
IF(M.EQ.1) TEST=DELS
IF((M.GT.5).AND.(DELS.GT.TEST)) CALL XABORT('FLDADJ: CONVERGENCE'
1 //' FAILURE.')
IF(M.GE.MAXOUT) THEN
WRITE (6,690)
GO TO 310
ENDIF
IF(MOD(M,36).EQ.0) THEN
ISTART=M+1
NNADI=NNADI+1
IF(IMPX.GE.1) WRITE (6,700) NNADI
ENDIF
GO TO 40
*----
* SOLUTION EDITION
*----
310 FKEFF=REAL(1.0D0/EVAL)
IF(IMPX.EQ.1) WRITE (6,640) M
IF(IMPX.GE.1) THEN
WRITE (6,650) TKT,TKB,TKT+TKB
WRITE (6,670) FKEFF
ENDIF
IF(IMPX.EQ.3) THEN
DO 320 IGR=1,NGRP
WRITE (6,680) IGR,(ADECT(I,IGR),I=1,LL4)
320 CONTINUE
ENDIF
*----
* SCRATCH STORAGE DEALLOCATION
*----
DEALLOCATE(GRAD1,GRAD2,GAR1,GAR2,GAR3,GAF1,GAF2,GAF3)
RETURN
*
600 FORMAT(1H1/50H FLDADJ: ITERATIVE PROCEDURE BASED ON PRECONDITION,
1 17HED POWER METHOD (,I2,37H ADI ITERATIONS PER OUTER ITERATION)./
2 9X,17HADJOINT EQUATION.)
610 FORMAT(//5X,17HBILINEAR PRODUCTS,48X,5HALPHA,3X,4HBETA,3X,
1 12HEIGENVALUE..,12X,8HACCURACY,11(1H.),2X,1HN)
615 FORMAT(1X,I3,1P,7E9.1,0P,2F8.3,E14.6,3E10.2,I4/(4X,1P,7E9.1))
620 FORMAT(1X,I3,1P,7E9.1,0P,2F8.3,E14.6,2E10.2,10X,I4/(4X,1P,7E9.1))
640 FORMAT(/23H FLDADJ: CONVERGENCE IN,I4,12H ITERATIONS.)
650 FORMAT(/53H FLDADJ: CPU TIME USED TO SOLVE THE TRIANGULAR LINEAR,
1 10H SYSTEMS =,F10.3/23X,34HTO COMPUTE THE BILINEAR PRODUCTS =,
2 F10.3,20X,16HTOTAL CPU TIME =,F10.3)
670 FORMAT(//42H FLDADJ: EFFECTIVE MULTIPLICATION FACTOR =,1P,E17.10/)
680 FORMAT(//53H FLDADJ: ADJOINT EIGENVECTOR CORRESPONDING TO THE GRO,
1 2HUP,I4//(5X,1P,8E14.5))
690 FORMAT(/53H FLDADJ: ***WARNING*** THE MAXIMUM NUMBER OF OUTER IT,
1 20HERATIONS IS REACHED.)
700 FORMAT(/53H FLDADJ: INCREASING THE NUMBER OF INNER ITERATIONS TO,
1 I3,36H ADI ITERATIONS PER OUTER ITERATION./)
END
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