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sint.F
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sint.F
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SUBROUTINE SINT(XF, &
ims, ime, jms, jme, icmask , &
its, ite, jts, jte, nf, xstag, ystag )
IMPLICIT NONE
INTEGER ims, ime, jms, jme, &
its, ite, jts, jte
LOGICAL icmask( ims:ime, jms:jme )
LOGICAL xstag, ystag
INTEGER nf, ior
REAL one12, one24, ep
PARAMETER(one12=1./12.,one24=1./24.)
PARAMETER(ior=2)
!
REAL XF(ims:ime,jms:jme,NF)
!
REAL Y(ims:ime,jms:jme,-IOR:IOR), &
Z(ims:ime,jms:jme,-IOR:IOR), &
F(ims:ime,jms:jme,0:1)
!
INTEGER I,J,II,JJ,IIM
INTEGER N2STAR, N2END, N1STAR, N1END
!
DATA EP/ 1.E-10/
REAL W(ims:ime,jms:jme),OV(ims:ime,jms:jme),UN(ims:ime,jms:jme)
REAL MXM(ims:ime,jms:jme),MN(ims:ime,jms:jme)
REAL FL(ims:ime,jms:jme,0:1)
REAL XIG(NF*NF), XJG(NF*NF) ! NF is parent to child grid refinement ratio
integer rr
REAL rioff, rjoff
!
REAL donor, y1, y2, a
DONOR(Y1,Y2,A)=(Y1*AMAX1(0.,SIGN(1.,A))-Y2*AMIN1(0.,SIGN(1.,A)))*A
REAL tr4, ym1, y0, yp1, yp2
TR4(YM1,Y0,YP1,YP2,A)=A*ONE12*(7.*(YP1+Y0)-(YP2+YM1)) &
-A*A*ONE24*(15.*(YP1-Y0)-(YP2-YM1))-A*A*A*ONE12*((YP1+Y0) &
-(YP2+YM1))+A*A*A*A*ONE24*(3.*(YP1-Y0)-(YP2-YM1))
REAL pp, pn, x
PP(X)=AMAX1(0.,X)
PN(X)=AMIN1(0.,X)
rr = nint(sqrt(float(nf)))
!! write(6,*) ' nf, rr are ',nf,rr
rioff = 0
rjoff = 0
if(xstag .and. (mod(rr,2) .eq. 0)) rioff = 1.
if(ystag .and. (mod(rr,2) .eq. 0)) rjoff = 1.
DO I=1,rr
DO J=1,rr
XIG(J+(I-1)*rr)=(float(rr)-1.-rioff)/float(2*rr)-FLOAT(J-1)*1./float(rr)
XJG(J+(I-1)*rr)=(float(rr)-1.-rjoff)/float(2*rr)-FLOAT(I-1)*1./float(rr)
ENDDO
ENDDO
N2STAR = jts
N2END = jte
N1STAR = its
N1END = ite
DO 2000 IIM=1,NF
!
! HERE STARTS RESIDUAL ADVECTION
!
DO 9000 JJ=N2STAR,N2END
DO 50 J=-IOR,IOR
DO 51 I=-IOR,IOR
DO 511 II=N1STAR,N1END
IF ( icmask(II,JJ) ) Y(II,JJ,I)=XF(II+I,JJ+J,IIM)
511 CONTINUE
51 CONTINUE
DO 811 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
FL(II,JJ,0)=DONOR(Y(II,JJ,-1),Y(II,JJ,0),XIG(IIM))
FL(II,JJ,1)=DONOR(Y(II,JJ,0),Y(II,JJ,1),XIG(IIM))
ENDIF
811 CONTINUE
DO 812 II=N1STAR,N1END
IF ( icmask(II,JJ) ) W(II,JJ)=Y(II,JJ,0)-(FL(II,JJ,1)-FL(II,JJ,0))
812 CONTINUE
DO 813 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
MXM(II,JJ)= &
AMAX1(Y(II,JJ,-1),Y(II,JJ,0),Y(II,JJ,1), &
W(II,JJ))
MN(II,JJ)=AMIN1(Y(II,JJ,-1),Y(II,JJ,0),Y(II,JJ,1),W(II,JJ))
ENDIF
813 CONTINUE
DO 312 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
F(II,JJ,0)= &
TR4(Y(II,JJ,-2),Y(II,JJ,-1),Y(II,JJ,0), &
Y(II,JJ,1),XIG(IIM))
F(II,JJ,1)= &
TR4(Y(II,JJ,-1),Y(II,JJ,0),Y(II,JJ,1),Y(II,JJ,2),&
XIG(IIM))
ENDIF
312 CONTINUE
DO 822 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
F(II,JJ,0)=F(II,JJ,0)-FL(II,JJ,0)
F(II,JJ,1)=F(II,JJ,1)-FL(II,JJ,1)
ENDIF
822 CONTINUE
DO 823 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
OV(II,JJ)=(MXM(II,JJ)-W(II,JJ))/(-PN(F(II,JJ,1))+ &
PP(F(II,JJ,0))+EP)
UN(II,JJ)=(W(II,JJ)-MN(II,JJ))/(PP(F(II,JJ,1))- &
PN(F(II,JJ,0))+EP)
ENDIF
823 CONTINUE
DO 824 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
F(II,JJ,0)=PP(F(II,JJ,0))*AMIN1(1.,OV(II,JJ))+ &
PN(F(II,JJ,0))*AMIN1(1.,UN(II,JJ))
F(II,JJ,1)=PP(F(II,JJ,1))*AMIN1(1.,UN(II,JJ))+ &
PN(F(II,JJ,1))*AMIN1(1.,OV(II,JJ))
ENDIF
824 CONTINUE
DO 825 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
Y(II,JJ,0)=W(II,JJ)-(F(II,JJ,1)-F(II,JJ,0))
ENDIF
825 CONTINUE
DO 361 II=N1STAR,N1END
IF ( icmask(II,JJ) ) Z(II,JJ,J)=Y(II,JJ,0)
361 CONTINUE
!
! END IF FIRST J LOOP
!
8000 CONTINUE
50 CONTINUE
DO 911 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
FL(II,JJ,0)=DONOR(Z(II,JJ,-1),Z(II,JJ,0),XJG(IIM))
FL(II,JJ,1)=DONOR(Z(II,JJ,0),Z(II,JJ,1),XJG(IIM))
ENDIF
911 CONTINUE
DO 912 II=N1STAR,N1END
IF ( icmask(II,JJ) ) W(II,JJ)=Z(II,JJ,0)-(FL(II,JJ,1)-FL(II,JJ,0))
912 CONTINUE
DO 913 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
MXM(II,JJ)=AMAX1(Z(II,JJ,-1),Z(II,JJ,0),Z(II,JJ,1),W(II,JJ))
MN(II,JJ)=AMIN1(Z(II,JJ,-1),Z(II,JJ,0),Z(II,JJ,1),W(II,JJ))
ENDIF
913 CONTINUE
DO 412 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
F(II,JJ,0)= &
TR4(Z(II,JJ,-2),Z(II,JJ,-1),Z(II,JJ,0),Z(II,JJ,1)&
,XJG(IIM))
F(II,JJ,1)= &
TR4(Z(II,JJ,-1),Z(II,JJ,0),Z(II,JJ,1),Z(II,JJ,2), &
XJG(IIM))
ENDIF
412 CONTINUE
DO 922 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
F(II,JJ,0)=F(II,JJ,0)-FL(II,JJ,0)
F(II,JJ,1)=F(II,JJ,1)-FL(II,JJ,1)
ENDIF
922 CONTINUE
DO 923 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
OV(II,JJ)=(MXM(II,JJ)-W(II,JJ))/(-PN(F(II,JJ,1))+ &
PP(F(II,JJ,0))+EP)
UN(II,JJ)=(W(II,JJ)-MN(II,JJ))/(PP(F(II,JJ,1))-PN(F(II,JJ,0))+ &
EP)
ENDIF
923 CONTINUE
DO 924 II=N1STAR,N1END
IF ( icmask(II,JJ) ) THEN
F(II,JJ,0)=PP(F(II,JJ,0))*AMIN1(1.,OV(II,JJ))+PN(F(II,JJ,0)) &
*AMIN1(1.,UN(II,JJ))
F(II,JJ,1)=PP(F(II,JJ,1))*AMIN1(1.,UN(II,JJ))+PN(F(II,JJ,1)) &
*AMIN1(1.,OV(II,JJ))
ENDIF
924 CONTINUE
9000 CONTINUE
DO 925 JJ=N2STAR,N2END
DO 925 II=N1STAR,N1END
IF ( icmask(II,JJ) ) XF(II,JJ,IIM)=W(II,JJ)-(F(II,JJ,1)-F(II,JJ,0))
925 CONTINUE
!
2000 CONTINUE
RETURN
END
! Version of sint that replaces mask with detailed ranges for avoiding boundaries
! may help performance by getting the conditionals out of innner loops
SUBROUTINE SINTB(XF1, XF , &
ims, ime, jms, jme, icmask , &
its, ite, jts, jte, nf, xstag, ystag )
IMPLICIT NONE
INTEGER ims, ime, jms, jme, &
its, ite, jts, jte
LOGICAL icmask( ims:ime, jms:jme )
LOGICAL xstag, ystag
INTEGER nf, ior
REAL one12, one24, ep
PARAMETER(one12=1./12.,one24=1./24.)
PARAMETER(ior=2)
!
REAL XF(ims:ime,jms:jme,NF)
REAL XF1(ims:ime,jms:jme,NF)
!
REAL Y(-IOR:IOR), &
Z(ims:ime,-IOR:IOR), &
F(0:1)
!
INTEGER I,J,II,JJ,IIM
INTEGER N2STAR, N2END, N1STAR, N1END
!
DATA EP/ 1.E-10/
!
! PARAMETER(NONOS=1)
! PARAMETER(N1OS=N1*NONOS+1-NONOS,N2OS=N2*NONOS+1-NONOS)
!
REAL W,OV,UN
REAL MXM,MN
REAL FL(0:1)
REAL XIG(NF*NF), XJG(NF*NF) ! NF is the parent to child grid refinement ratio
integer rr
REAL rioff, rjoff
!
REAL donor, y1, y2, a
DONOR(Y1,Y2,A)=(Y1*AMAX1(0.,SIGN(1.,A))-Y2*AMIN1(0.,SIGN(1.,A)))*A
REAL tr4, ym1, y0, yp1, yp2
TR4(YM1,Y0,YP1,YP2,A)=A*ONE12*(7.*(YP1+Y0)-(YP2+YM1)) &
-A*A*ONE24*(15.*(YP1-Y0)-(YP2-YM1))-A*A*A*ONE12*((YP1+Y0) &
-(YP2+YM1))+A*A*A*A*ONE24*(3.*(YP1-Y0)-(YP2-YM1))
REAL pp, pn, x
PP(X)=AMAX1(0.,X)
PN(X)=AMIN1(0.,X)
rr = nint(sqrt(float(nf)))
rioff = 0
rjoff = 0
if(xstag .and. (mod(rr,2) .eq. 0)) rioff = 1.
if(ystag .and. (mod(rr,2) .eq. 0)) rjoff = 1.
DO I=1,rr
DO J=1,rr
XIG(J+(I-1)*rr)=(float(rr)-1.-rioff)/float(2*rr)-FLOAT(J-1)*1./float(rr)
XJG(J+(I-1)*rr)=(float(rr)-1.-rjoff)/float(2*rr)-FLOAT(I-1)*1./float(rr)
ENDDO
ENDDO
N2STAR = jts
N2END = jte
N1STAR = its
N1END = ite
DO 2000 IIM=1,NF
!
! HERE STARTS RESIDUAL ADVECTION
!
DO 9000 JJ=N2STAR,N2END
!cdir unroll=5
DO 50 J=-IOR,IOR
!cdir unroll=5
DO 511 II=N1STAR,N1END
Y(-2)=XF1(II-2,JJ+J,IIM)
Y(-1)=XF1(II-1,JJ+J,IIM)
Y(0)=XF1(II,JJ+J,IIM)
Y(1)=XF1(II+1,JJ+J,IIM)
Y(2)=XF1(II+2,JJ+J,IIM)
FL(0)=DONOR(Y(-1),Y(0),XIG(IIM))
FL(1)=DONOR(Y(0),Y(1),XIG(IIM))
W=Y(0)-(FL(1)-FL(0))
MXM= &
AMAX1(Y(-1),Y(0),Y(1), &
W)
MN=AMIN1(Y(-1),Y(0),Y(1),W)
F(0)= &
TR4(Y(-2),Y(-1),Y(0), &
Y(1),XIG(IIM))
F(1)= &
TR4(Y(-1),Y(0),Y(1),Y(2),&
XIG(IIM))
F(0)=F(0)-FL(0)
F(1)=F(1)-FL(1)
OV=(MXM-W)/(-PN(F(1))+ &
PP(F(0))+EP)
UN=(W-MN)/(PP(F(1))- &
PN(F(0))+EP)
F(0)=PP(F(0))*AMIN1(1.,OV)+ &
PN(F(0))*AMIN1(1.,UN)
F(1)=PP(F(1))*AMIN1(1.,UN)+ &
PN(F(1))*AMIN1(1.,OV)
Y(0)=W-(F(1)-F(0))
Z(II,J)=Y(0)
511 CONTINUE
!
! END IF FIRST J LOOP
!
8000 CONTINUE
50 CONTINUE
DO 911 II=N1STAR,N1END
FL(0)=DONOR(Z(II,-1),Z(II,0),XJG(IIM))
FL(1)=DONOR(Z(II,0),Z(II,1),XJG(IIM))
W=Z(II,0)-(FL(1)-FL(0))
MXM=AMAX1(Z(II,-1),Z(II,0),Z(II,1),W)
MN=AMIN1(Z(II,-1),Z(II,0),Z(II,1),W)
F(0)= &
TR4(Z(II,-2),Z(II,-1),Z(II,0),Z(II,1)&
,XJG(IIM))
F(1)= &
TR4(Z(II,-1),Z(II,0),Z(II,1),Z(II,2), &
XJG(IIM))
F(0)=F(0)-FL(0)
F(1)=F(1)-FL(1)
OV=(MXM-W)/(-PN(F(1))+ &
PP(F(0))+EP)
UN=(W-MN)/(PP(F(1))-PN(F(0))+ &
EP)
F(0)=PP(F(0))*AMIN1(1.,OV)+PN(F(0)) &
*AMIN1(1.,UN)
F(1)=PP(F(1))*AMIN1(1.,UN)+PN(F(1)) &
*AMIN1(1.,OV)
XF(II,JJ,IIM)=W-(F(1)-F(0))
911 CONTINUE
9000 CONTINUE
!
2000 CONTINUE
RETURN
END