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quantum_package/plugins/read_integral/read_integrals_mo.irp.f

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Fortran
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program read_integrals
BEGIN_DOC
! Reads the integrals from the following files:
! - kinetic_mo
! - nuclear_mo
! - bielec_mo
END_DOC
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integer :: iunit
integer :: getunitandopen
integer :: i,j,n
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PROVIDE ezfio_filename
call ezfio_set_integrals_monoelec_disk_access_mo_one_integrals("None")
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logical :: has
call ezfio_has_mo_basis_mo_tot_num(has)
if (.not.has) then
iunit = getunitandopen('nuclear_mo','r')
n=0
do
read (iunit,*,end=12) i
n = max(n,i)
enddo
12 continue
close(iunit)
call ezfio_set_mo_basis_mo_tot_num(n)
call ezfio_has_ao_basis_ao_num(has)
mo_label = "None"
if (has) then
call huckel_guess
else
call ezfio_set_ao_basis_ao_num(n)
double precision, allocatable :: X(:,:)
allocate (X(n,n))
X = 0.d0
do i=1,n
X(i,i) = 1.d0
enddo
call ezfio_set_mo_basis_mo_coef(X)
call save_mos
endif
endif
call run
end
subroutine run
use map_module
implicit none
integer :: iunit
integer :: getunitandopen
integer ::i,j,k,l
double precision :: integral
double precision, allocatable :: A(:,:)
integer :: n_integrals
integer(key_kind), allocatable :: buffer_i(:)
real(integral_kind), allocatable :: buffer_values(:)
integer(key_kind) :: key
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call ezfio_get_mo_basis_mo_tot_num(mo_tot_num)
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allocate (A(mo_tot_num,mo_tot_num))
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A = 0.d0
iunit = getunitandopen('kinetic_mo','r')
do
read (iunit,*,end=10) i,j, integral
A(i,j) = integral
enddo
10 continue
close(iunit)
call write_one_e_integrals('mo_kinetic_integral', A, size(A,1), size(A,2))
iunit = getunitandopen('nuclear_mo','r')
do
read (iunit,*,end=12) i,j, integral
A(i,j) = integral
enddo
12 continue
close(iunit)
call write_one_e_integrals('mo_ne_integral', A, size(A,1), size(A,2))
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call write_one_e_integrals('mo_pseudo_integral', mo_pseudo_integral,&
size(mo_pseudo_integral,1), size(mo_pseudo_integral,2))
call ezfio_set_integrals_monoelec_disk_access_mo_one_integrals("Read")
allocate(buffer_i(mo_tot_num**4), buffer_values(mo_tot_num**4))
iunit = getunitandopen('bielec_mo','r')
n_integrals=0
do
read (iunit,*,end=13) i,j,k,l, integral
n_integrals += 1
call bielec_integrals_index(i, j, k, l, buffer_i(n_integrals) )
buffer_values(n_integrals) = integral
enddo
13 continue
close(iunit)
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call map_append(mo_integrals_map, buffer_i, buffer_values, n_integrals)
call map_sort(mo_integrals_map)
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call map_unique(mo_integrals_map)
call map_save_to_disk(trim(ezfio_filename)//'/work/mo_ints',mo_integrals_map)
call ezfio_set_integrals_bielec_disk_access_mo_integrals("Read")
end