Chimie Théorique » Opt'n Path

!C

!C  SPACE SIMPLY LOADS THE CURRENT VALUES OF Geom AND GRAD INTO

!C  THE ARRAYS GeomSet AND GradSet

!C

      SUBROUTINE Space_all(NGeomF,IGeom,MRESET,MSET,Geom,GRAD,HEAT,NCoord,GeomSet,GradSet,ESET,FRST)

!      IMPLICIT DOUBLE PRECISION (A-H,O-Z)

!      INCLUDE 'SIZES'

      IMPLICIT NONE

      integer, parameter :: KINT = kind(1)

      integer, parameter :: KREAL = kind(1.0d0)

!      INCLUDE 'SIZES'

 !MSET=mth iteration, MRESET=Maximum no. of iterations. 

      INTEGER(KINT) :: NCoord,MRESET,NGeomF,IGeom

      INTEGER(KINT) :: MSET(NGeomF)

 !Geom=geometry with NCoord coordinates. GRAD=gradients.

      REAL(KREAL) :: Geom(NCoord),GRAD(NCoord)

      REAL(KREAL) :: Heat

      LOGICAL :: FRST(NGeomF), Print=.FALSE.

 ! GeomSet, GradSet : a long array to store

      REAL(KREAL) :: GeomSet(NGeomF,MRESET*NCoord),GradSet(NGeomF,MRESET*NCoord), ESET(MRESET)

        ! Geom and GRAD for all iterations.

      INTEGER(KINT) :: I, K, NMK, MI, NI

      INTEGER(KINT), SAVE :: NRESET

!C

!C     UPDATE PARAMETER AND GRADIENT SUBSPACE

!C

      IF (PRINT)  WRITE(*,'(/,''       BEGIN SPACE  '')')

      IF(FRST(IGeom))THEN

         NRESET=MIN(NCoord/2,MRESET)

         IF(NCoord .LT. 5 ) THEN ! This condition is imposed for small NCoord,

           ! particularly if NCoord is equal to 2 or 3.

           NRESET = NCoord-1

         ENDIF

         FRST(IGeom)=.FALSE.

         MSET(IGeom)=0

      ENDIF

!C

      !IF (PRINT)  WRITE(*,'(/,''       SPACE 1  '')')

        ! purging the very first Geom and GRAD.

       if (print) WRITE(*,*) "DBG Space MSET(",IGeom,"), NRESET",MSET(IGeom),NRESET

       IF (MSET(IGeom) .EQ. NRESET) THEN

         DO 10 I=1,MSET(IGeom)-1

            MI = NCoord*(I-1)

            NI = NCoord*I

            ESET(I)=ESET(I+1)

            DO 10 K=1,NCoord

               GeomSet(IGeom,MI+K) = GeomSet(IGeom,NI+K)

   10    GradSet(IGeom,MI+K) = GradSet(IGeom,NI+K)

            MSET(IGeom)=NRESET-1

       ENDIF

!C

!C     STORE THE CURRENT POINT

!C

      !IF (PRINT)  WRITE(*,'(/,''       SPACE 2  '')')

      DO  K=1,NCoord

         NMK = NCoord*MSET(IGeom)+K ! MSET(IGeom) corresponds the mth iteration.

         IF (PRINT)  WRITE(*,*) 'K,NMK,MSET(',IGeom,'),NCoord',K,NMK,MSET(IGeom),NCoord, &

                     SIZE(GeomSet(IGeom,:)), SIZE(GradSet(IGeom,:)),SIZE(Geom),SIZE(GRAD)

         GeomSet(IGeom,NMK) = Geom(K)

         GradSet(IGeom,NMK) = Grad(K)

      END DO

      MSET(IGeom)=MSET(IGeom)+1

      ESET(MSET(IGeom))=HEAT

      IF (PRINT) WRITE (*,*) "MSET(",IGeom,")=", MSET(IGeom)

      IF (PRINT)  WRITE(*,'(/,''       END SPACE   '')')

      END SUBROUTINE Space_all