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quantum_package/plugins/loc_cele/loc_cele.irp.f
2015-07-03 13:37:10 +02:00

321 lines
5.6 KiB
Fortran

program loc_rasorb
implicit none
BEGIN_DOC
! This program performs a localization of the active orbitals
! of a CASSCF wavefunction, reading the orbitals from a RASORB
! file of molcas.
! id1=max is the number of MO in a given symmetry.
END_DOC
integer id1
parameter (id1=300)
character*1 jobz,uplo
character*64 file1,file2
character*72 string(id1,8),cdum
double precision :: cmo(id1,id1,1),cmoref(id1,id1,1),newcmo(id1,id1,1)
double precision ::s(id1,id1,1),dum,ddum(id1,id1),ovl(id1,id1)
double precision :: w(id1),work(3*id1),t(id1,id1),wi(id1,id1)
integer n,i,j,k,l,nmo(8),isym,nsym,idum,nrot(8),irot(id1,8)
integer ipiv(id1),info,lwork
logical *1 z54
print*,'passed the first copy'
z54=.false.
!Read the name of the RasOrb file
print*,'Entering in the loc program'
! read(5,*) z54
print*,'before = '
accu_norm = 0.d0
do i =1,mo_tot_num
accu_norm += dabs(mo_overlap(i,i))
enddo
print*,'accu_norm = ',accu_norm
nsym = 1
nmo(1) = mo_tot_num
print*,'nmo(1) = ',nmo(1)
cmo = 0.d0
do isym=1,nsym
do i=1,nmo(isym)
do j = 1, ao_num
cmo(j,i,isym) = mo_coef(j,i)
enddo
enddo
enddo
print*,'passed the first copy'
do isym=1,nsym
do j=1,mo_tot_num
do i=1,ao_num
newcmo(i,j,isym)=cmo(i,j,isym)
enddo
enddo
enddo
print*,'passed the copy'
nrot(1) = 6 ! number of orbitals to be localized
integer :: index_rot(1000,1)
cmoref = 0.d0
! Definition of the index of the MO to be rotated
irot(1,1) = 20 ! the first mo to be rotated is the 19 th MO
irot(2,1) = 21 ! the first mo to be rotated is the 20 th MO
irot(3,1) = 22 ! etc....
irot(4,1) = 23 !
irot(5,1) = 24 !
irot(6,1) = 25 !
! you define the guess vectors that you want
! the new MO to be close to
! cmore(i,j,1) = < AO_i | guess_vector_MO(j) >
! i goes from 1 to ao_num
! j goes from 1 to nrot(1)
! Here you must go to the GAMESS output file
! where the AOs are listed and explicited
! From the basis of this knowledge you can build your
! own guess vectors for the MOs
! The new MOs are provided in output
! in the same order than the guess MOs
cmoref(3,1,1) = 1.d0 !
cmoref(12,1,1) = 1.d0 !
cmoref(21,2,1) = 1.d0 !
cmoref(30,2,1) = 1.d0 !
cmoref(39,3,1) = 1.d0 !
cmoref(48,3,1) = 1.d0 !
cmoref(3,4,1) = 1.d0 !
cmoref(12,4,1) =-1.d0 !
cmoref(21,5,1) = 1.d0 !
cmoref(30,5,1) =-1.d0 !
cmoref(39,6,1) = 1.d0 !
cmoref(48,6,1) =-1.d0 !
print*,'passed the definition of the referent vectors '
!Building the S (overlap) matrix in the AO basis.
do isym=1,nsym
if (nrot(isym).eq.0) cycle
do i=1,ao_num
s(i,i,isym)=1.d0
do j=1,ao_num
if (i.ne.j) s(i,j,isym)=0.d0
ddum(i,j)=0.d0
do k=1,nmo(isym)
ddum(i,j)=ddum(i,j)+cmo(i,k,isym)*cmo(j,k,isym)
enddo
enddo
enddo
call dgesv(ao_num,ao_num,ddum,id1,ipiv,s(1,1,isym),id1,info)
if (info.ne.0) then
write (6,*) 'Something wrong in dgsev',isym
stop
endif
enddo
!Now big loop over symmetry
do isym=1,nsym
if (nrot(isym).eq.0) cycle
write (6,*)
write (6,*)
write (6,*)
write (6,*) 'WORKING ON SYMMETRY',isym
write (6,*)
!Compute the overlap matrix <ref|vec>
! do i=1,nmo(isym)
do i=1,ao_num
do j=1,nrot(isym)
ddum(i,j)=0.d0
do k=1,ao_num
ddum(i,j)=ddum(i,j)+s(i,k,isym)*cmo(k,irot(j,isym),isym)
enddo
enddo
enddo
do i=1,nrot(isym)
do j=1,nrot(isym)
ovl(i,j)=0.d0
do k=1,ao_num
! do k=1,mo_tot_num
ovl(i,j)=ovl(i,j)+cmoref(k,i,isym)*ddum(k,j)
enddo
enddo
enddo
call maxovl(nrot(isym),nrot(isym),ovl,t,wi)
do i=1,nrot(isym)
do j=1,ao_num
write (6,*) 'isym,',isym,nrot(isym),nmo(isym)
newcmo(j,irot(i,isym),isym)=0.d0
do k=1,nrot(isym)
newcmo(j,irot(i,isym),isym)=newcmo(j,irot(i,isym),isym) + cmo(j,irot(k,isym),isym)*t(k,i)
enddo
enddo
enddo
! if(dabs(newcmo(3,19,1) - mo_coef(3,19)) .gt.1.d-10 )then
! print*,'Something wrong bitch !!'
! print*,'newcmo(3,19,1) = ',newcmo(3,19,1)
! print*,'mo_coef(3,19) = ',mo_coef(3,19)
! stop
! endif
enddo !big loop over symmetry
10 format (4E18.12)
! Now we copyt the newcmo into the mo_coef
mo_coef = 0.d0
do isym=1,nsym
do i=1,nmo(isym)
do j = 1, ao_num
mo_coef(j,i) = newcmo(j,i,isym)
enddo
enddo
enddo
! if(dabs(newcmo(3,19,1) - mo_coef(3,19)) .gt.1.d-10 )then
print*,'mo_coef(3,19)',mo_coef(3,19)
pause
! we say that it hase been touched, and valid and that everything that
! depends on mo_coef must not be reprovided
double precision :: accu_norm
touch mo_coef
print*,'after = '
accu_norm = 0.d0
do i =1,mo_tot_num
accu_norm += dabs(mo_overlap(i,i))
enddo
print*,'accu_norm = ',accu_norm
! We call the routine that saves mo_coef in the ezfio format
call save_mos
stop
end