2020-02-12 23:34:32 +01:00
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BEGIN_PROVIDER [double precision, df_mo_integrals_real, (mo_num_per_kpt,mo_num_per_kpt,df_num,kpt_pair_num)]
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&BEGIN_PROVIDER [double precision, df_mo_integrals_imag, (mo_num_per_kpt,mo_num_per_kpt,df_num,kpt_pair_num)]
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&BEGIN_PROVIDER [complex*16, df_mo_integrals_complex, (mo_num_per_kpt,mo_num_per_kpt,df_num,kpt_pair_num)]
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2020-02-12 00:35:28 +01:00
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implicit none
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BEGIN_DOC
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! df AO integrals
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END_DOC
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integer :: i,j,k,l
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if (read_df_mo_integrals) then
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df_mo_integrals_real = 0.d0
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df_mo_integrals_imag = 0.d0
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call ezfio_get_mo_two_e_ints_df_mo_integrals_real(df_mo_integrals_real)
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call ezfio_get_mo_two_e_ints_df_mo_integrals_imag(df_mo_integrals_imag)
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print *, 'df AO integrals read from disk'
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do l=1,kpt_pair_num
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do k=1,df_num
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2020-02-12 23:34:32 +01:00
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do j=1,mo_num_per_kpt
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do i=1,mo_num_per_kpt
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2020-02-12 00:35:28 +01:00
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df_mo_integrals_complex(i,j,k,l) = dcmplx(df_mo_integrals_real(i,j,k,l), &
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df_mo_integrals_imag(i,j,k,l))
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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
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2020-02-12 23:34:32 +01:00
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call df_mo_from_df_ao(df_mo_integrals_complex,df_ao_integrals_complex,mo_num_per_kpt,ao_num_per_kpt,df_num,kpt_pair_num)
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2020-02-12 00:35:28 +01:00
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endif
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if (write_df_mo_integrals) then
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do l=1,kpt_pair_num
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do k=1,df_num
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2020-02-12 23:34:32 +01:00
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do j=1,mo_num_per_kpt
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do i=1,mo_num_per_kpt
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2020-02-12 00:35:28 +01:00
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df_mo_integrals_real(i,j,k,l) = dble(df_mo_integrals_complex(i,j,k,l))
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df_mo_integrals_imag(i,j,k,l) = dimag(df_mo_integrals_complex(i,j,k,l))
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enddo
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enddo
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enddo
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enddo
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call ezfio_set_mo_two_e_ints_df_mo_integrals_real(df_mo_integrals_real)
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call ezfio_set_mo_two_e_ints_df_mo_integrals_imag(df_mo_integrals_imag)
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print *, 'df AO integrals written to disk'
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endif
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END_PROVIDER
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subroutine df_mo_from_df_ao(df_mo,df_ao,n_mo,n_ao,n_df,n_k_pairs)
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use map_module
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implicit none
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BEGIN_DOC
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! create 3-idx mo ints from 3-idx ao ints
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END_DOC
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integer,intent(in) :: n_mo,n_ao,n_df,n_k_pairs
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complex*16,intent(out) :: df_mo(n_mo,n_mo,n_df,n_k_pairs)
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complex*16,intent(in) :: df_ao(n_ao,n_ao,n_df,n_k_pairs)
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integer :: kl,kj,kjkl2,mu,p,q
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complex*16,allocatable :: coef_l(:,:), coef_j(:,:), ints_jl(:,:), ints_tmp(:,:)
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double precision :: wall_1,wall_2,cpu_1,cpu_2
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print*,'providing 3-index MO integrals from 3-index AO integrals'
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call wall_time(wall_1)
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call cpu_time(cpu_1)
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allocate( &
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coef_l(n_ao,n_mo),&
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coef_j(n_ao,n_mo),&
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ints_jl(n_ao,n_ao),&
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ints_tmp(n_mo,n_ao)&
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)
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do kl=1, kpt_num
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coef_l = mo_coef_kpts(:,:,kl)
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do kj=1, kl
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coef_j = mo_coef_kpts(:,:,kj)
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kjkl2 = kj+shiftr(kl*kl-kl,1)
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do mu=1, df_num
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ints_jl = df_ao(:,:,mu,kjkl2)
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call zgemm('C','N',n_mo,n_ao,n_ao, &
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(1.d0,0.d0), coef_j, n_ao, &
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ints_jl, n_ao, &
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(0.d0,0.d0), ints_tmp, n_mo)
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call zgemm('N','N',n_mo,n_mo,n_ao, &
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(1.d0,0.d0), ints_tmp, n_mo, &
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coef_l, n_ao, &
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(0.d0,0.d0), df_mo(:,:,mu,kjkl2), n_mo)
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enddo
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enddo
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call wall_time(wall_2)
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print*,100.*float(kl*(kl+1))/(2.*n_k_pairs), '% in ', &
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wall_2-wall_1, 's'
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enddo
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deallocate( &
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coef_l, &
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coef_j, &
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ints_jl, &
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ints_tmp &
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)
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call wall_time(wall_2)
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call cpu_time(cpu_2)
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print*,' 3-idx MO provided'
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print*,' cpu time:',cpu_2-cpu_1,'s'
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print*,' wall time:',wall_2-wall_1,'s ( x ',(cpu_2-cpu_1)/(wall_2-wall_1),')'
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end subroutine df_mo_from_df_ao
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