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Orthogonalize MOs

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This commit is contained in:
Anthony Scemama 2020-11-11 10:26:36 +01:00
parent 69dfa85277
commit 6b2020d40d
5 changed files with 13 additions and 10 deletions
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6
src/hartree_fock/10.hf.bats
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@ -13,7 +13,7 @@ function run() {
qp set scf_utils n_it_scf_max 50
qp set ao_one_e_ints lin_dep_cutoff 1.e-50
qp run scf
# qp set_frozen_core
# qp set_frozen_core
energy="$(ezfio get hartree_fock energy)"
eq $energy $2 $thresh
}
@ -49,7 +49,7 @@ function run() {
}
@test "HBO" { # 0.805600 1.4543s
run hbo.ezfio -100.018582259096
run hbo.ezfio -100.018582259096
}
@test "H2S" { # 1.655600 4.21402s
@ -101,7 +101,7 @@ function run() {
}
@test "DHNO" { # 12.856700 16.5908s
run dhno.ezfio -130.427877782432
run dhno.ezfio -130.427877782432
}
@test "NH3" { # 13.632200 34.7981s

7
src/hartree_fock/scf.irp.f
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@ -47,22 +47,23 @@ subroutine create_guess
PROVIDE ezfio_filename
call ezfio_has_mo_basis_mo_coef(exists)
if (.not.exists) then
mo_label = 'Guess'
if (mo_guess_type == "HCore") then
mo_coef = ao_ortho_lowdin_coef
TOUCH mo_coef
mo_label = 'Guess'
call mo_as_eigvectors_of_mo_matrix(mo_one_e_integrals, &
size(mo_one_e_integrals,1), &
size(mo_one_e_integrals,2), &
mo_label,1,.false.)
call nullify_small_elements(ao_num, mo_num, mo_coef, size(mo_coef,1), 1.d-10)
SOFT_TOUCH mo_coef mo_label
SOFT_TOUCH mo_coef
else if (mo_guess_type == "Huckel") then
call huckel_guess
else
print *, 'Unrecognized MO guess type : '//mo_guess_type
stop 1
endif
SOFT_TOUCH mo_label
endif
end
@ -77,7 +78,7 @@ subroutine run
integer :: i_it, i, j, k
mo_label = "Orthonormalized"
mo_label = 'Near-Canonical'
call Roothaan_Hall_SCF
call ezfio_set_hartree_fock_energy(SCF_energy)

2
src/mo_guess/h_core_guess_routine.irp.f
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@ -4,7 +4,7 @@ subroutine hcore_guess
END_DOC
implicit none
character*(64) :: label
label = "Guess"
label = 'Guess'
call mo_as_eigvectors_of_mo_matrix(mo_one_e_integrals, &
size(mo_one_e_integrals,1), &
size(mo_one_e_integrals,2),label,1,.false.)

1
src/scf_utils/huckel.irp.f
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@ -26,6 +26,7 @@ subroutine huckel_guess
TOUCH Fock_matrix_ao_alpha Fock_matrix_ao_beta
mo_coef = eigenvectors_fock_matrix_mo
call nullify_small_elements(ao_num, mo_num, mo_coef, size(mo_coef,1), 1.d-12 )
call orthonormalize_mos
SOFT_TOUCH mo_coef
call save_mos
deallocate(A)

7
src/scf_utils/roothaan_hall_scf.irp.f
View File

@ -153,7 +153,7 @@ END_DOC
enddo
if (iteration_SCF < n_it_SCF_max) then
mo_label = "Canonical"
mo_label = 'Canonical'
endif
!
! End of Main SCF loop
@ -164,7 +164,8 @@ END_DOC
write(6,*)
if(.not.frozen_orb_scf)then
call mo_as_eigvectors_of_mo_matrix(Fock_matrix_mo,size(Fock_matrix_mo,1),size(Fock_matrix_mo,2),mo_label,1,.true.)
call mo_as_eigvectors_of_mo_matrix(Fock_matrix_mo,size(Fock_matrix_mo,1), &
size(Fock_matrix_mo,2),mo_label,1,.true.)
call nullify_small_elements(ao_num, mo_num, mo_coef, size(mo_coef,1), 1.d-10)
call orthonormalize_mos
call save_mos
@ -305,7 +306,7 @@ END_DOC
Fock_matrix_AO_(i,j) = 0.d0
enddo
do k=1,dim_DIIS
if (dabs(X_vector_DIIS(k)) < 1.d-12) cycle
if (dabs(X_vector_DIIS(k)) < 1.d-10) cycle
do i=1,ao_num
Fock_matrix_AO_(i,j) = Fock_matrix_AO_(i,j) + &
X_vector_DIIS(k)*Fock_matrix_DIIS(i,j,dim_DIIS-k+1)