mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-12-21 11:03:29 +01:00
296 lines
7.9 KiB
Fortran
296 lines
7.9 KiB
Fortran
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BEGIN_PROVIDER [ integer, mo_num ]
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implicit none
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BEGIN_DOC
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! Number of MOs
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END_DOC
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logical :: has
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PROVIDE ezfio_filename
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if (mpi_master) then
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call ezfio_has_mo_basis_mo_num(has)
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endif
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IRP_IF MPI_DEBUG
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print *, irp_here, mpi_rank
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call MPI_BARRIER(MPI_COMM_WORLD, ierr)
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IRP_ENDIF
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IRP_IF MPI
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include 'mpif.h'
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integer :: ierr
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call MPI_BCAST( has, 1, MPI_LOGICAL, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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stop 'Unable to read mo_num with MPI'
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endif
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IRP_ENDIF
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if (.not.has) then
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mo_num = ao_ortho_canonical_num
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else
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if (mpi_master) then
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call ezfio_get_mo_basis_mo_num(mo_num)
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endif
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IRP_IF MPI
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call MPI_BCAST( mo_num, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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stop 'Unable to read mo_num with MPI'
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endif
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IRP_ENDIF
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endif
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call write_int(6,mo_num,'mo_num')
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ASSERT (mo_num > 0)
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_coef, (ao_num,mo_num) ]
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implicit none
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BEGIN_DOC
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! Molecular orbital coefficients on |AO| basis set
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!
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! mo_coef(i,j) = coefficient of the i-th |AO| on the jth mo
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!
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! mo_label : Label characterizing the MOS (local, canonical, natural, etc)
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END_DOC
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integer :: i, j
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double precision, allocatable :: buffer(:,:)
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logical :: exists
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PROVIDE ezfio_filename
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if (mpi_master) then
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! Coefs
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call ezfio_has_mo_basis_mo_coef(exists)
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endif
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IRP_IF MPI_DEBUG
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print *, irp_here, mpi_rank
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call MPI_BARRIER(MPI_COMM_WORLD, ierr)
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IRP_ENDIF
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IRP_IF MPI
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include 'mpif.h'
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integer :: ierr
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call MPI_BCAST(exists, 1, MPI_LOGICAL, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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stop 'Unable to read mo_coef with MPI'
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endif
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IRP_ENDIF
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if (exists) then
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if (mpi_master) then
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call ezfio_get_mo_basis_mo_coef(mo_coef)
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write(*,*) 'Read mo_coef'
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endif
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IRP_IF MPI
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call MPI_BCAST( mo_coef, mo_num*ao_num, MPI_DOUBLE_PRECISION, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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stop 'Unable to read mo_coef with MPI'
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endif
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IRP_ENDIF
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else
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! Orthonormalized AO basis
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do i=1,mo_num
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do j=1,ao_num
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mo_coef(j,i) = ao_ortho_canonical_coef(j,i)
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enddo
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enddo
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endif
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_coef_in_ao_ortho_basis, (ao_num, mo_num) ]
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implicit none
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BEGIN_DOC
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! |MO| coefficients in orthogonalized |AO| basis
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!
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! $C^{-1}.C_{mo}$
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END_DOC
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call dgemm('N','N',ao_num,mo_num,ao_num,1.d0, &
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ao_ortho_canonical_coef_inv, size(ao_ortho_canonical_coef_inv,1),&
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mo_coef, size(mo_coef,1), 0.d0, &
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mo_coef_in_ao_ortho_basis, size(mo_coef_in_ao_ortho_basis,1))
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END_PROVIDER
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BEGIN_PROVIDER [ character*(64), mo_label ]
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implicit none
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BEGIN_DOC
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! |MO| coefficients on |AO| basis set
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!
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! mo_coef(i,j) = coefficient of the i-th |AO| on the j-th |MO|
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!
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! mo_label : Label characterizing the |MOs| (local, canonical, natural, etc)
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END_DOC
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logical :: exists
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PROVIDE ezfio_filename
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if (mpi_master) then
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call ezfio_has_mo_basis_mo_label(exists)
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if (exists) then
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call ezfio_get_mo_basis_mo_label(mo_label)
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mo_label = trim(mo_label)
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else
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mo_label = 'no_label'
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endif
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write(*,*) '* mo_label ', trim(mo_label)
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endif
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IRP_IF MPI_DEBUG
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print *, irp_here, mpi_rank
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call MPI_BARRIER(MPI_COMM_WORLD, ierr)
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IRP_ENDIF
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IRP_IF MPI
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include 'mpif.h'
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integer :: ierr
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call MPI_BCAST( mo_label, 64, MPI_CHARACTER, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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stop 'Unable to read mo_label with MPI'
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endif
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IRP_ENDIF
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_coef_transp, (mo_num,ao_num) ]
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implicit none
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BEGIN_DOC
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! |MO| coefficients on |AO| basis set
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END_DOC
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integer :: i, j
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do j=1,ao_num
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do i=1,mo_num
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mo_coef_transp(i,j) = mo_coef(j,i)
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enddo
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enddo
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END_PROVIDER
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BEGIN_PROVIDER [ double precision, mo_occ, (mo_num) ]
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implicit none
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BEGIN_DOC
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! |MO| occupation numbers
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END_DOC
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PROVIDE ezfio_filename elec_beta_num elec_alpha_num
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if (mpi_master) then
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logical :: exists
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call ezfio_has_mo_basis_mo_occ(exists)
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if (exists) then
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call ezfio_get_mo_basis_mo_occ(mo_occ)
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else
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mo_occ = 0.d0
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integer :: i
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do i=1,elec_beta_num
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mo_occ(i) = 2.d0
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enddo
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do i=elec_beta_num+1,elec_alpha_num
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mo_occ(i) = 1.d0
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enddo
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endif
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write(*,*) 'Read mo_occ'
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endif
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IRP_IF MPI_DEBUG
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print *, irp_here, mpi_rank
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call MPI_BARRIER(MPI_COMM_WORLD, ierr)
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IRP_ENDIF
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IRP_IF MPI
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include 'mpif.h'
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integer :: ierr
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call MPI_BCAST( mo_occ, mo_num, MPI_DOUBLE_PRECISION, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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stop 'Unable to read mo_occ with MPI'
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endif
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IRP_ENDIF
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END_PROVIDER
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subroutine ao_to_mo(A_ao,LDA_ao,A_mo,LDA_mo)
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implicit none
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BEGIN_DOC
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! Transform A from the |AO| basis to the |MO| basis
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!
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! $C^\dagger.A_{ao}.C$
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END_DOC
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integer, intent(in) :: LDA_ao,LDA_mo
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double precision, intent(in) :: A_ao(LDA_ao,ao_num)
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double precision, intent(out) :: A_mo(LDA_mo,mo_num)
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double precision, allocatable :: T(:,:)
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allocate ( T(ao_num,mo_num) )
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!DIR$ ATTRIBUTES ALIGN : $IRP_ALIGN :: T
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call dgemm('N','N', ao_num, mo_num, ao_num, &
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1.d0, A_ao,LDA_ao, &
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mo_coef, size(mo_coef,1), &
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0.d0, T, size(T,1))
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call dgemm('T','N', mo_num, mo_num, ao_num, &
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1.d0, mo_coef,size(mo_coef,1), &
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T, ao_num, &
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0.d0, A_mo, size(A_mo,1))
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deallocate(T)
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end
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subroutine mix_mo_jk(j,k)
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implicit none
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integer, intent(in) :: j,k
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integer :: i,i_plus,i_minus
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BEGIN_DOC
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! Rotates the j-th |MO| with the k-th |MO| to give two new |MOs| that are
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!
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! * $+ = \frac{1}{\sqrt{2}} (|j\rangle + |k\rangle)$
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!
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! * $- = \frac{1}{\sqrt{2}} (|j\rangle - |k\rangle)$
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!
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! by convention, the '+' |MO| is in the lowest index (min(j,k))
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! by convention, the '-' |MO| is in the highest index (max(j,k))
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END_DOC
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double precision :: array_tmp(ao_num,2),dsqrt_2
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if(j==k)then
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print*,'You want to mix two orbitals that are the same !'
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print*,'It does not make sense ... '
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print*,'Stopping ...'
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stop
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endif
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array_tmp = 0.d0
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dsqrt_2 = 1.d0/dsqrt(2.d0)
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do i = 1, ao_num
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array_tmp(i,1) = dsqrt_2 * (mo_coef(i,j) + mo_coef(i,k))
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array_tmp(i,2) = dsqrt_2 * (mo_coef(i,j) - mo_coef(i,k))
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enddo
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i_plus = min(j,k)
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i_minus = max(j,k)
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do i = 1, ao_num
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mo_coef(i,i_plus) = array_tmp(i,1)
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mo_coef(i,i_minus) = array_tmp(i,2)
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enddo
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end
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subroutine ao_ortho_cano_to_ao(A_ao,LDA_ao,A,LDA)
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implicit none
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BEGIN_DOC
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! Transform A from the |AO| basis to the orthogonal |AO| basis
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!
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! $C^{-1}.A_{ao}.C^{\dagger-1}$
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END_DOC
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integer, intent(in) :: LDA_ao,LDA
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double precision, intent(in) :: A_ao(LDA_ao,*)
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double precision, intent(out) :: A(LDA,*)
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double precision, allocatable :: T(:,:)
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allocate ( T(ao_num,ao_num) )
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call dgemm('T','N', ao_num, ao_num, ao_num, &
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1.d0, &
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ao_ortho_canonical_coef_inv, size(ao_ortho_canonical_coef_inv,1),&
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A_ao,size(A_ao,1), &
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0.d0, T, size(T,1))
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call dgemm('N','N', ao_num, ao_num, ao_num, 1.d0, &
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T, size(T,1), &
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ao_ortho_canonical_coef_inv,size(ao_ortho_canonical_coef_inv,1),&
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0.d0, A, size(A,1))
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deallocate(T)
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end
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