mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-06-02 02:35:18 +02:00
214 lines
4.2 KiB
Fortran
214 lines
4.2 KiB
Fortran
! T1
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subroutine guess_t1(nO,nV,f_o,f_v,f_ov,t1)
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implicit none
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BEGIN_DOC
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! Update the T1 amplitudes for CC
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END_DOC
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! in
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integer, intent(in) :: nO, nV
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double precision, intent(in) :: f_o(nO), f_v(nV), f_ov(nO,nV)
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! inout
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double precision, intent(out) :: t1(nO, nV)
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! internal
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integer :: i,a
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if (trim(cc_guess_t1) == 'none') then
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t1 = 0d0
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else if (trim(cc_guess_t1) == 'MP') then
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do a = 1, nV
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do i = 1, nO
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t1(i,a) = f_ov(i,a) / (f_o(i) - f_v(a) - cc_level_shift_guess)
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enddo
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enddo
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else if (trim(cc_guess_t1) == 'read') then
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call read_t1(nO,nV,t1)
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else
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print*, 'Unknown cc_guess_t1 type: '//trim(cc_guess_t1)
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call abort
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endif
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end
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! T2
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subroutine guess_t2(nO,nV,f_o,f_v,v_oovv,t2)
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implicit none
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BEGIN_DOC
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! Update the T2 amplitudes for CC
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END_DOC
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! in
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integer, intent(in) :: nO, nV
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double precision, intent(in) :: f_o(nO), f_v(nV), v_oovv(nO, nO, nV, nV)
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! inout
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double precision, intent(out) :: t2(nO, nO, nV, nV)
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! internal
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integer :: i,j,a,b
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if (trim(cc_guess_t2) == 'none') then
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t2 = 0d0
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else if (trim(cc_guess_t2) == 'MP') then
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do b = 1, nV
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do a = 1, nV
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do j = 1, nO
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do i = 1, nO
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t2(i,j,a,b) = v_oovv(i,j,a,b) / (f_o(i) + f_o(j) - f_v(a) - f_v(b) - cc_level_shift_guess)
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enddo
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enddo
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enddo
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enddo
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else if (trim(cc_guess_t2) == 'read') then
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call read_t2(nO,nV,t2)
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else
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print*, 'Unknown cc_guess_t1 type: '//trim(cc_guess_t2)
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call abort
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endif
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end
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! T1
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subroutine write_t1(nO,nV,t1)
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implicit none
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BEGIN_DOC
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! Write the T1 amplitudes for CC
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END_DOC
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! in
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integer, intent(in) :: nO, nV
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double precision, intent(in) :: t1(nO, nV)
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! internal
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integer :: i,a
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if (cc_write_t1) then
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open(unit=11, file=trim(ezfio_filename)//'/cc_utils/T1')
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do a = 1, nV
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do i = 1, nO
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write(11,'(F20.12)') t1(i,a)
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enddo
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enddo
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close(11)
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endif
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end
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! T2
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subroutine write_t2(nO,nV,t2)
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implicit none
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BEGIN_DOC
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! Write the T2 amplitudes for CC
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END_DOC
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! in
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integer, intent(in) :: nO, nV
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double precision, intent(in) :: t2(nO, nO, nV, nV)
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! internal
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integer :: i,j,a,b
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if (cc_write_t2) then
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open(unit=11, file=trim(ezfio_filename)//'/cc_utils/T2')
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do b = 1, nV
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do a = 1, nV
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do j = 1, nO
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do i = 1, nO
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write(11,'(F20.12)') t2(i,j,a,b)
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enddo
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enddo
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enddo
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enddo
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close(11)
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endif
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end
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! T1
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subroutine read_t1(nO,nV,t1)
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implicit none
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BEGIN_DOC
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! Read the T1 amplitudes for CC
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END_DOC
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! in
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integer, intent(in) :: nO, nV
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double precision, intent(out) :: t1(nO, nV)
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! internal
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integer :: i,a
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logical :: ok
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inquire(file=trim(ezfio_filename)//'/cc_utils/T1', exist=ok)
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if (.not. ok) then
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print*, 'There is no file'// trim(ezfio_filename)//'/cc_utils/T1'
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print*, 'Do a first calculation with cc_write_t1 = True'
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print*, 'and cc_guess_t1 /= read before setting cc_guess_t1 = read'
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call abort
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endif
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open(unit=11, file=trim(ezfio_filename)//'/cc_utils/T1')
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do a = 1, nV
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do i = 1, nO
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read(11,'(F20.12)') t1(i,a)
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enddo
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enddo
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close(11)
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end
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! T2
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subroutine read_t2(nO,nV,t2)
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implicit none
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BEGIN_DOC
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! Read the T2 amplitudes for CC
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END_DOC
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! in
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integer, intent(in) :: nO, nV
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double precision, intent(out) :: t2(nO, nO, nV, nV)
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! internal
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integer :: i,j,a,b
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logical :: ok
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inquire(file=trim(ezfio_filename)//'/cc_utils/T1', exist=ok)
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if (.not. ok) then
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print*, 'There is no file'// trim(ezfio_filename)//'/cc_utils/T1'
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print*, 'Do a first calculation with cc_write_t2 = True'
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print*, 'and cc_guess_t2 /= read before setting cc_guess_t2 = read'
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call abort
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endif
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open(unit=11, file=trim(ezfio_filename)//'/cc_utils/T2')
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do b = 1, nV
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do a = 1, nV
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do j = 1, nO
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do i = 1, nO
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read(11,'(F20.12)') t2(i,j,a,b)
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enddo
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enddo
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enddo
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enddo
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close(11)
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end
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