LCOV - code coverage report
Current view: top level - src - mp2_gpw.F (source / functions) Hit Total Coverage
Test: CP2K Regtests (git:b8e0b09) Lines: 461 478 96.4 %
Date: 2024-08-31 06:31:37 Functions: 7 7 100.0 %

          Line data    Source code
       1             : !--------------------------------------------------------------------------------------------------!
       2             : !   CP2K: A general program to perform molecular dynamics simulations                              !
       3             : !   Copyright 2000-2024 CP2K developers group <https://cp2k.org>                                   !
       4             : !                                                                                                  !
       5             : !   SPDX-License-Identifier: GPL-2.0-or-later                                                      !
       6             : !--------------------------------------------------------------------------------------------------!
       7             : 
       8             : ! **************************************************************************************************
       9             : !> \brief Calls routines to get RI integrals and calculate total energies
      10             : !> \par History
      11             : !>      10.2011 created [Joost VandeVondele and Mauro Del Ben]
      12             : !>      07.2019 split from mp2_gpw.F [Frederick Stein]
      13             : ! **************************************************************************************************
      14             : MODULE mp2_gpw
      15             :    USE atomic_kind_types,               ONLY: atomic_kind_type
      16             :    USE basis_set_types,                 ONLY: get_gto_basis_set,&
      17             :                                               gto_basis_set_p_type,&
      18             :                                               gto_basis_set_type
      19             :    USE cell_types,                      ONLY: cell_type,&
      20             :                                               get_cell
      21             :    USE cp_blacs_env,                    ONLY: BLACS_GRID_SQUARE,&
      22             :                                               cp_blacs_env_create,&
      23             :                                               cp_blacs_env_release,&
      24             :                                               cp_blacs_env_type
      25             :    USE cp_control_types,                ONLY: dft_control_type
      26             :    USE cp_dbcsr_api,                    ONLY: &
      27             :         dbcsr_clear_mempools, dbcsr_copy, dbcsr_create, dbcsr_distribution_release, &
      28             :         dbcsr_distribution_type, dbcsr_filter, dbcsr_init_p, dbcsr_iterator_blocks_left, &
      29             :         dbcsr_iterator_next_block, dbcsr_iterator_start, dbcsr_iterator_stop, dbcsr_iterator_type, &
      30             :         dbcsr_p_type, dbcsr_release, dbcsr_reserve_all_blocks, dbcsr_type, dbcsr_type_no_symmetry, &
      31             :         dbcsr_type_real_default, dbcsr_type_symmetric
      32             :    USE cp_dbcsr_cp2k_link,              ONLY: cp_dbcsr_alloc_block_from_nbl
      33             :    USE cp_dbcsr_operations,             ONLY: cp_dbcsr_dist2d_to_dist,&
      34             :                                               cp_dbcsr_m_by_n_from_row_template
      35             :    USE cp_fm_types,                     ONLY: cp_fm_get_info,&
      36             :                                               cp_fm_release,&
      37             :                                               cp_fm_type
      38             :    USE cp_log_handling,                 ONLY: &
      39             :         cp_add_default_logger, cp_get_default_logger, cp_logger_create, &
      40             :         cp_logger_get_default_unit_nr, cp_logger_release, cp_logger_set, cp_logger_type, &
      41             :         cp_rm_default_logger, cp_to_string
      42             :    USE dbt_api,                         ONLY: dbt_type
      43             :    USE distribution_1d_types,           ONLY: distribution_1d_release,&
      44             :                                               distribution_1d_type
      45             :    USE distribution_2d_types,           ONLY: distribution_2d_release,&
      46             :                                               distribution_2d_type
      47             :    USE distribution_methods,            ONLY: distribute_molecules_1d,&
      48             :                                               distribute_molecules_2d
      49             :    USE group_dist_types,                ONLY: create_group_dist,&
      50             :                                               get_group_dist,&
      51             :                                               group_dist_d1_type,&
      52             :                                               release_group_dist
      53             :    USE hfx_types,                       ONLY: block_ind_type,&
      54             :                                               hfx_compression_type
      55             :    USE input_constants,                 ONLY: &
      56             :         do_eri_gpw, do_eri_os, do_potential_coulomb, do_potential_id, do_potential_truncated, &
      57             :         eri_default, mp2_method_gpw, ri_default, ri_mp2_method_gpw, rpa_exchange_none
      58             :    USE input_section_types,             ONLY: section_vals_val_get
      59             :    USE kinds,                           ONLY: dp
      60             :    USE kpoint_types,                    ONLY: kpoint_type
      61             :    USE libint_wrapper,                  ONLY: cp_libint_static_cleanup,&
      62             :                                               cp_libint_static_init
      63             :    USE machine,                         ONLY: default_output_unit,&
      64             :                                               m_flush
      65             :    USE message_passing,                 ONLY: mp_para_env_release,&
      66             :                                               mp_para_env_type
      67             :    USE molecule_kind_types,             ONLY: molecule_kind_type
      68             :    USE molecule_types,                  ONLY: molecule_type
      69             :    USE mp2_cphf,                        ONLY: solve_z_vector_eq
      70             :    USE mp2_gpw_method,                  ONLY: mp2_gpw_compute
      71             :    USE mp2_integrals,                   ONLY: mp2_ri_gpw_compute_in
      72             :    USE mp2_ri_gpw,                      ONLY: mp2_ri_gpw_compute_en
      73             :    USE mp2_ri_grad,                     ONLY: calc_ri_mp2_nonsep
      74             :    USE mp2_types,                       ONLY: mp2_type,&
      75             :                                               three_dim_real_array
      76             :    USE particle_methods,                ONLY: get_particle_set
      77             :    USE particle_types,                  ONLY: particle_type
      78             :    USE qs_environment_types,            ONLY: get_qs_env,&
      79             :                                               qs_environment_type
      80             :    USE qs_integral_utils,               ONLY: basis_set_list_setup
      81             :    USE qs_interactions,                 ONLY: init_interaction_radii
      82             :    USE qs_kind_types,                   ONLY: get_qs_kind,&
      83             :                                               qs_kind_type
      84             :    USE qs_ks_types,                     ONLY: qs_ks_env_type
      85             :    USE qs_mo_types,                     ONLY: get_mo_set,&
      86             :                                               mo_set_type
      87             :    USE qs_neighbor_list_types,          ONLY: neighbor_list_set_p_type,&
      88             :                                               release_neighbor_list_sets
      89             :    USE qs_neighbor_lists,               ONLY: atom2d_build,&
      90             :                                               atom2d_cleanup,&
      91             :                                               build_neighbor_lists,&
      92             :                                               local_atoms_type,&
      93             :                                               pair_radius_setup
      94             :    USE rpa_main,                        ONLY: rpa_ri_compute_en
      95             :    USE rpa_rse,                         ONLY: rse_energy
      96             : #include "./base/base_uses.f90"
      97             : 
      98             :    IMPLICIT NONE
      99             : 
     100             :    PRIVATE
     101             : 
     102             :    CHARACTER(len=*), PARAMETER, PRIVATE :: moduleN = 'mp2_gpw'
     103             : 
     104             :    PUBLIC :: mp2_gpw_main, create_mat_munu, grep_rows_in_subgroups, build_dbcsr_from_rows
     105             : 
     106             : CONTAINS
     107             : 
     108             : ! **************************************************************************************************
     109             : !> \brief with a big bang to mp2
     110             : !> \param qs_env ...
     111             : !> \param mp2_env ...
     112             : !> \param Emp2 ...
     113             : !> \param Emp2_Cou ...
     114             : !> \param Emp2_EX ...
     115             : !> \param Emp2_S ...
     116             : !> \param Emp2_T ...
     117             : !> \param mos_mp2 ...
     118             : !> \param para_env ...
     119             : !> \param unit_nr ...
     120             : !> \param calc_forces ...
     121             : !> \param calc_ex ...
     122             : !> \param do_ri_mp2 ...
     123             : !> \param do_ri_rpa ...
     124             : !> \param do_ri_sos_laplace_mp2 ...
     125             : !> \author Mauro Del Ben and Joost VandeVondele
     126             : ! **************************************************************************************************
     127         632 :    SUBROUTINE mp2_gpw_main(qs_env, mp2_env, Emp2, Emp2_Cou, Emp2_EX, Emp2_S, Emp2_T, &
     128         632 :                            mos_mp2, para_env, unit_nr, calc_forces, calc_ex, do_ri_mp2, do_ri_rpa, &
     129             :                            do_ri_sos_laplace_mp2)
     130             :       TYPE(qs_environment_type), POINTER                 :: qs_env
     131             :       TYPE(mp2_type)                                     :: mp2_env
     132             :       REAL(KIND=dp), INTENT(OUT)                         :: Emp2, Emp2_Cou, Emp2_EX, Emp2_S, Emp2_T
     133             :       TYPE(mo_set_type), DIMENSION(:), INTENT(IN)        :: mos_mp2
     134             :       TYPE(mp_para_env_type), POINTER                    :: para_env
     135             :       INTEGER, INTENT(IN)                                :: unit_nr
     136             :       LOGICAL, INTENT(IN)                                :: calc_forces, calc_ex
     137             :       LOGICAL, INTENT(IN), OPTIONAL                      :: do_ri_mp2, do_ri_rpa, &
     138             :                                                             do_ri_sos_laplace_mp2
     139             : 
     140             :       CHARACTER(LEN=*), PARAMETER                        :: routineN = 'mp2_gpw_main'
     141             : 
     142             :       INTEGER :: blacs_grid_layout, bse_lev_virt, color_sub, dimen, dimen_RI, dimen_RI_red, &
     143             :          eri_method, handle, ispin, local_unit_nr, my_group_L_end, my_group_L_size, &
     144             :          my_group_L_start, nmo, nspins, potential_type, ri_metric_type
     145         632 :       INTEGER, ALLOCATABLE, DIMENSION(:) :: ends_array_mc, ends_array_mc_block, gw_corr_lev_occ, &
     146         632 :          gw_corr_lev_virt, homo, starts_array_mc, starts_array_mc_block
     147             :       INTEGER, DIMENSION(3)                              :: periodic
     148             :       LOGICAL :: blacs_repeatable, do_bse, do_im_time, do_kpoints_cubic_RPA, my_do_gw, &
     149             :          my_do_ri_mp2, my_do_ri_rpa, my_do_ri_sos_laplace_mp2
     150             :       REAL(KIND=dp)                                      :: Emp2_AB, Emp2_BB, Emp2_Cou_BB, &
     151             :                                                             Emp2_EX_BB, eps_gvg_rspace_old, &
     152             :                                                             eps_pgf_orb_old, eps_rho_rspace_old
     153         632 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: Eigenval
     154         632 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :, :)     :: BIb_C_bse_ab, BIb_C_bse_ij
     155         632 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: mo_eigenvalues
     156         632 :       TYPE(atomic_kind_type), DIMENSION(:), POINTER      :: atomic_kind_set
     157             :       TYPE(block_ind_type), ALLOCATABLE, &
     158         632 :          DIMENSION(:, :, :)                              :: t_3c_O_ind
     159             :       TYPE(cell_type), POINTER                           :: cell
     160             :       TYPE(cp_blacs_env_type), POINTER                   :: blacs_env_sub, blacs_env_sub_mat_munu
     161             :       TYPE(cp_fm_type)                                   :: fm_matrix_PQ
     162         632 :       TYPE(cp_fm_type), ALLOCATABLE, DIMENSION(:)        :: mo_coeff
     163         632 :       TYPE(cp_fm_type), ALLOCATABLE, DIMENSION(:, :)     :: fm_matrix_L_kpoints, fm_matrix_Minv, &
     164         632 :                                                             fm_matrix_Minv_L_kpoints, &
     165         632 :                                                             fm_matrix_Minv_Vtrunc_Minv
     166             :       TYPE(cp_fm_type), POINTER                          :: mo_coeff_ptr
     167             :       TYPE(cp_logger_type), POINTER                      :: logger, logger_sub
     168             :       TYPE(dbcsr_p_type)                                 :: mat_munu, mat_P_global
     169         632 :       TYPE(dbcsr_p_type), ALLOCATABLE, DIMENSION(:)      :: mo_coeff_all, mo_coeff_gw, mo_coeff_o, &
     170         632 :                                                             mo_coeff_o_bse, mo_coeff_v, &
     171         632 :                                                             mo_coeff_v_bse
     172         632 :       TYPE(dbcsr_p_type), DIMENSION(:), POINTER          :: matrix_s
     173         632 :       TYPE(dbcsr_p_type), DIMENSION(:, :), POINTER       :: matrix_s_kp
     174        4424 :       TYPE(dbt_type)                                     :: t_3c_M
     175         632 :       TYPE(dbt_type), ALLOCATABLE, DIMENSION(:, :)       :: t_3c_O
     176             :       TYPE(dft_control_type), POINTER                    :: dft_control
     177         632 :       TYPE(group_dist_d1_type)                           :: gd_array, gd_B_all, gd_B_occ_bse, &
     178         632 :                                                             gd_B_virt_bse
     179             :       TYPE(group_dist_d1_type), ALLOCATABLE, &
     180         632 :          DIMENSION(:)                                    :: gd_B_virtual
     181             :       TYPE(hfx_compression_type), ALLOCATABLE, &
     182         632 :          DIMENSION(:, :, :)                              :: t_3c_O_compressed
     183             :       TYPE(kpoint_type), POINTER                         :: kpoints, kpoints_from_DFT
     184         632 :       TYPE(mo_set_type), DIMENSION(:), POINTER           :: mos
     185             :       TYPE(mp_para_env_type), POINTER                    :: para_env_sub
     186             :       TYPE(neighbor_list_set_p_type), DIMENSION(:), &
     187         632 :          POINTER                                         :: sab_orb_sub
     188         632 :       TYPE(particle_type), DIMENSION(:), POINTER         :: particle_set
     189         632 :       TYPE(qs_kind_type), DIMENSION(:), POINTER          :: qs_kind_set
     190             :       TYPE(qs_ks_env_type), POINTER                      :: ks_env
     191             :       TYPE(three_dim_real_array), ALLOCATABLE, &
     192         632 :          DIMENSION(:)                                    :: BIb_C, BIb_C_gw
     193             : 
     194         632 :       CALL timeset(routineN, handle)
     195             : 
     196             :       ! check if we want to do ri-mp2
     197         632 :       my_do_ri_mp2 = .FALSE.
     198         632 :       IF (PRESENT(do_ri_mp2)) my_do_ri_mp2 = do_ri_mp2
     199             : 
     200             :       ! check if we want to do ri-rpa
     201         632 :       my_do_ri_rpa = .FALSE.
     202         632 :       IF (PRESENT(do_ri_rpa)) my_do_ri_rpa = do_ri_rpa
     203             : 
     204             :       ! check if we want to do ri-sos-laplace-mp2
     205         632 :       my_do_ri_sos_laplace_mp2 = .FALSE.
     206         632 :       IF (PRESENT(do_ri_sos_laplace_mp2)) my_do_ri_sos_laplace_mp2 = do_ri_sos_laplace_mp2
     207             : 
     208             :       ! GW and SOS-MP2 cannot be used together
     209         632 :       IF (my_do_ri_sos_laplace_mp2) THEN
     210          58 :          CPASSERT(.NOT. mp2_env%ri_rpa%do_ri_g0w0)
     211             :       END IF
     212             : 
     213             :       ! check if we want to do imaginary time
     214         632 :       do_im_time = mp2_env%do_im_time
     215         632 :       do_bse = qs_env%mp2_env%ri_g0w0%do_bse
     216         632 :       do_kpoints_cubic_RPA = qs_env%mp2_env%ri_rpa_im_time%do_im_time_kpoints
     217             : 
     218         632 :       IF (do_kpoints_cubic_RPA .AND. mp2_env%ri_rpa%do_ri_g0w0) THEN
     219           0 :          CPABORT("Full RPA k-points (DO_KPOINTS in LOW_SCALING section) not implemented with GW")
     220             :       END IF
     221             : 
     222             :       ! Get the number of spins
     223         632 :       nspins = SIZE(mos_mp2)
     224             : 
     225             :       ! ... setup needed to be able to qs_integrate in a subgroup.
     226         632 :       IF (do_kpoints_cubic_RPA) THEN
     227           4 :          CALL get_qs_env(qs_env=qs_env, dft_control=dft_control, kpoints=kpoints_from_DFT)
     228           4 :          mos(1:nspins) => kpoints_from_DFT%kp_env(1)%kpoint_env%mos(1:nspins, 1)
     229             :       ELSE
     230         628 :          CALL get_qs_env(qs_env=qs_env, dft_control=dft_control, mos=mos)
     231             :       END IF
     232         632 :       CALL get_mo_set(mo_set=mos_mp2(1), nao=dimen)
     233        5830 :       ALLOCATE (homo(nspins), Eigenval(dimen, nspins), mo_coeff(nspins))
     234        1406 :       DO ispin = 1, nspins
     235             :          CALL get_mo_set(mo_set=mos_mp2(ispin), &
     236             :                          eigenvalues=mo_eigenvalues, nmo=nmo, homo=homo(ispin), &
     237         774 :                          mo_coeff=mo_coeff_ptr)
     238         774 :          mo_coeff(ispin) = mo_coeff_ptr
     239       17032 :          Eigenval(:, ispin) = mo_eigenvalues(:)
     240             :       END DO
     241             : 
     242             :       ! a para_env
     243         632 :       color_sub = para_env%mepos/mp2_env%mp2_num_proc
     244         632 :       ALLOCATE (para_env_sub)
     245         632 :       CALL para_env_sub%from_split(para_env, color_sub)
     246             : 
     247             :       ! each of the sub groups might need to generate output
     248         632 :       logger => cp_get_default_logger()
     249         632 :       IF (para_env%is_source()) THEN
     250         316 :          local_unit_nr = cp_logger_get_default_unit_nr(logger, local=.FALSE.)
     251             :       ELSE
     252         316 :          local_unit_nr = default_output_unit
     253             :       END IF
     254             : 
     255             :       ! get stuff
     256             :       CALL get_qs_env(qs_env, &
     257             :                       ks_env=ks_env, &
     258             :                       qs_kind_set=qs_kind_set, &
     259             :                       cell=cell, &
     260             :                       particle_set=particle_set, &
     261             :                       atomic_kind_set=atomic_kind_set, &
     262             :                       dft_control=dft_control, &
     263         632 :                       matrix_s_kp=matrix_s_kp)
     264             : 
     265         632 :       CALL get_cell(cell=cell, periodic=periodic)
     266             : 
     267         632 :       IF (do_im_time) THEN
     268             : 
     269         134 :          IF (mp2_env%ri_metric%potential_type == ri_default) THEN
     270         420 :             IF (SUM(periodic) == 1 .OR. SUM(periodic) == 3) THEN
     271           6 :                mp2_env%ri_metric%potential_type = do_potential_id
     272             :             ELSE
     273          54 :                mp2_env%ri_metric%potential_type = do_potential_truncated
     274             :             END IF
     275             :          END IF
     276             : 
     277             :          ! statically initialize libint
     278         134 :          CALL cp_libint_static_init()
     279             : 
     280             :       END IF
     281             : 
     282         632 :       IF (mp2_env%ri_metric%potential_type == ri_default) THEN
     283         286 :          mp2_env%ri_metric%potential_type = do_potential_coulomb
     284             :       END IF
     285             : 
     286         632 :       IF (mp2_env%eri_method == eri_default) THEN
     287        1048 :          IF (SUM(periodic) > 0) mp2_env%eri_method = do_eri_gpw
     288        1048 :          IF (SUM(periodic) == 0) mp2_env%eri_method = do_eri_os
     289        1048 :          IF (SUM(mp2_env%ri_rpa_im_time%kp_grid) > 0) mp2_env%eri_method = do_eri_os
     290         262 :          IF (mp2_env%method == mp2_method_gpw) mp2_env%eri_method = do_eri_gpw
     291         262 :          IF (mp2_env%method == ri_mp2_method_gpw) mp2_env%eri_method = do_eri_gpw
     292         262 :          IF (mp2_env%ri_rpa_im_time%do_im_time_kpoints) mp2_env%eri_method = do_eri_os
     293         262 :          IF (calc_forces .AND. mp2_env%eri_method == do_eri_os) mp2_env%eri_method = do_eri_gpw
     294             :       END IF
     295         632 :       eri_method = mp2_env%eri_method
     296             : 
     297         632 :       IF (unit_nr > 0 .AND. mp2_env%eri_method == do_eri_gpw) THEN
     298             :          WRITE (UNIT=unit_nr, FMT="(T3,A,T71,F10.1)") &
     299         176 :             "GPW_INFO| Density cutoff [a.u.]:", mp2_env%mp2_gpw%cutoff*0.5_dp
     300             :          WRITE (UNIT=unit_nr, FMT="(T3,A,T71,F10.1)") &
     301         176 :             "GPW_INFO| Relative density cutoff [a.u.]:", mp2_env%mp2_gpw%relative_cutoff*0.5_dp
     302         176 :          CALL m_flush(unit_nr)
     303             :       END IF
     304             : 
     305         632 :       IF (.NOT. mp2_env%ri_g0w0%print_local_bandgap) THEN
     306             :          ! a logger
     307         626 :          NULLIFY (logger_sub)
     308             :          CALL cp_logger_create(logger_sub, para_env=para_env_sub, &
     309         626 :                                default_global_unit_nr=local_unit_nr, close_global_unit_on_dealloc=.FALSE.)
     310         626 :          CALL cp_logger_set(logger_sub, local_filename="MP2_localLog")
     311             :          ! set to a custom print level (we could also have a different print level for para_env%source)
     312         626 :          logger_sub%iter_info%print_level = mp2_env%mp2_gpw%print_level
     313         626 :          CALL cp_add_default_logger(logger_sub)
     314             :       END IF
     315             : 
     316             :       ! a blacs_env (ignore the globenv stored defaults for now)
     317         632 :       blacs_grid_layout = BLACS_GRID_SQUARE
     318         632 :       blacs_repeatable = .TRUE.
     319         632 :       NULLIFY (blacs_env_sub)
     320             :       CALL cp_blacs_env_create(blacs_env_sub, para_env_sub, &
     321             :                                blacs_grid_layout, &
     322         632 :                                blacs_repeatable)
     323             : 
     324         632 :       blacs_env_sub_mat_munu => blacs_env_sub
     325             : 
     326         632 :       matrix_s(1:1) => matrix_s_kp(1:1, 1)
     327             : 
     328         632 :       CALL get_eps_old(dft_control, eps_pgf_orb_old, eps_rho_rspace_old, eps_gvg_rspace_old)
     329             : 
     330             :       CALL create_mat_munu(mat_munu, qs_env, mp2_env%mp2_gpw%eps_grid, &
     331             :                            blacs_env_sub_mat_munu, do_alloc_blocks_from_nbl=.NOT. do_im_time, sab_orb_sub=sab_orb_sub, &
     332             :                            do_kpoints=mp2_env%ri_rpa_im_time%do_im_time_kpoints, &
     333         632 :                            dbcsr_sym_type=dbcsr_type_symmetric)
     334             : 
     335             :       ! which RI metric we want to have
     336         632 :       ri_metric_type = mp2_env%ri_metric%potential_type
     337             : 
     338             :       ! which interaction potential
     339         632 :       potential_type = mp2_env%potential_parameter%potential_type
     340             : 
     341             :       ! check if we want to do ri-g0w0 on top of ri-rpa
     342         632 :       my_do_gw = mp2_env%ri_rpa%do_ri_g0w0
     343        1896 :       ALLOCATE (gw_corr_lev_occ(nspins), gw_corr_lev_virt(nspins))
     344         632 :       gw_corr_lev_occ(1) = mp2_env%ri_g0w0%corr_mos_occ
     345         632 :       gw_corr_lev_virt(1) = mp2_env%ri_g0w0%corr_mos_virt
     346         632 :       IF (nspins == 2) THEN
     347         142 :          gw_corr_lev_occ(2) = mp2_env%ri_g0w0%corr_mos_occ_beta
     348         142 :          gw_corr_lev_virt(2) = mp2_env%ri_g0w0%corr_mos_virt_beta
     349             :       END IF
     350             : 
     351         632 :       IF (do_bse) THEN
     352          18 :          IF (nspins > 1) THEN
     353           0 :             CPABORT("BSE not implemented for open shell calculations")
     354             :          END IF
     355             :          !Keep default behavior for occupied
     356             :          ! We do not implement an explicit bse_lev_occ here, because the small number of occupied levels
     357             :          ! does not critically influence the memory
     358          18 :          bse_lev_virt = gw_corr_lev_virt(1)
     359             :       END IF
     360             : 
     361             :       ! After the components are inside of the routines, we can move this line insight the branch
     362        6888 :       ALLOCATE (mo_coeff_o(nspins), mo_coeff_v(nspins), mo_coeff_all(nspins), mo_coeff_gw(nspins))
     363             : 
     364             :       ! Always allocate for usage in call of replicate_mat_to_subgroup
     365        1896 :       ALLOCATE (mo_coeff_o_bse(1), mo_coeff_v_bse(1))
     366             : 
     367             :       ! for imag. time, we do not need this
     368         632 :       IF (.NOT. do_im_time) THEN
     369             : 
     370             :          ! new routine: replicate a full matrix from one para_env to a smaller one
     371             :          ! keeping the memory usage as small as possible in this case the
     372             :          ! output the two part of the C matrix (virtual, occupied)
     373        1108 :          DO ispin = 1, nspins
     374             : 
     375             :             CALL replicate_mat_to_subgroup(para_env, para_env_sub, mo_coeff(ispin), dimen, homo(ispin), mat_munu%matrix, &
     376             :                                            mo_coeff_o(ispin)%matrix, mo_coeff_v(ispin)%matrix, &
     377             :                                            mo_coeff_all(ispin)%matrix, mo_coeff_gw(ispin)%matrix, &
     378             :                                            my_do_gw, gw_corr_lev_occ(ispin), gw_corr_lev_virt(ispin), do_bse, &
     379             :                                            bse_lev_virt, mo_coeff_o_bse(1)%matrix, mo_coeff_v_bse(1)%matrix, &
     380        1108 :                                            mp2_env%mp2_gpw%eps_filter)
     381             : 
     382             :          END DO
     383             : 
     384             :       END IF
     385             : 
     386             :       ! now we're kind of ready to go....
     387         632 :       Emp2_S = 0.0_dp
     388         632 :       Emp2_T = 0.0_dp
     389         632 :       IF (my_do_ri_mp2 .OR. my_do_ri_rpa .OR. my_do_ri_sos_laplace_mp2) THEN
     390             :          ! RI-GPW integrals (same stuff for both RPA and MP2)
     391         618 :          IF (nspins == 2) THEN
     392             :             ! open shell case (RI) here the (ia|K) integrals are computed for both the alpha and beta components
     393             :             CALL mp2_ri_gpw_compute_in( &
     394             :                BIb_C, BIb_C_gw, BIb_C_bse_ij, BIb_C_bse_ab, gd_array, gd_B_virtual, dimen_RI, dimen_RI_red, qs_env, &
     395             :                para_env, para_env_sub, color_sub, cell, particle_set, &
     396             :                atomic_kind_set, qs_kind_set, fm_matrix_PQ, fm_matrix_L_kpoints, fm_matrix_Minv_L_kpoints, &
     397             :                fm_matrix_Minv, fm_matrix_Minv_Vtrunc_Minv, nmo, homo, mat_munu, sab_orb_sub, &
     398             :                mo_coeff_o, mo_coeff_v, mo_coeff_all, mo_coeff_gw, mo_coeff_o_bse, mo_coeff_v_bse, &
     399             :                mp2_env%mp2_gpw%eps_filter, unit_nr, &
     400             :                mp2_env%mp2_memory, mp2_env%calc_PQ_cond_num, calc_forces, blacs_env_sub, my_do_gw .AND. .NOT. do_im_time, &
     401             :                do_bse, gd_B_all, starts_array_mc, ends_array_mc, starts_array_mc_block, ends_array_mc_block, &
     402             :                gw_corr_lev_occ(1), gw_corr_lev_virt(1), &
     403             :                bse_lev_virt, &
     404             :                do_im_time, do_kpoints_cubic_RPA, kpoints, &
     405             :                t_3c_M, t_3c_O, t_3c_O_compressed, t_3c_O_ind, &
     406             :                mp2_env%ri_metric, &
     407         276 :                gd_B_occ_bse, gd_B_virt_bse)
     408             :          ELSE
     409             :             ! closed shell case (RI)
     410             :             CALL mp2_ri_gpw_compute_in(BIb_C, BIb_C_gw, BIb_C_bse_ij, BIb_C_bse_ab, gd_array, gd_B_virtual, &
     411             :                                        dimen_RI, dimen_RI_red, qs_env, para_env, para_env_sub, &
     412             :                                        color_sub, cell, particle_set, &
     413             :                                        atomic_kind_set, qs_kind_set, fm_matrix_PQ, &
     414             :                                        fm_matrix_L_kpoints, fm_matrix_Minv_L_kpoints, &
     415             :                                        fm_matrix_Minv, fm_matrix_Minv_Vtrunc_Minv, nmo, homo, &
     416             :                                        mat_munu, sab_orb_sub, &
     417             :                                        mo_coeff_o, mo_coeff_v, mo_coeff_all, mo_coeff_gw, mo_coeff_o_bse, mo_coeff_v_bse, &
     418             :                                        mp2_env%mp2_gpw%eps_filter, unit_nr, &
     419             :                                        mp2_env%mp2_memory, mp2_env%calc_PQ_cond_num, calc_forces, &
     420             :                                        blacs_env_sub, my_do_gw .AND. .NOT. do_im_time, do_bse, gd_B_all, &
     421             :                                        starts_array_mc, ends_array_mc, &
     422             :                                        starts_array_mc_block, ends_array_mc_block, &
     423             :                                        gw_corr_lev_occ(1), gw_corr_lev_virt(1), &
     424             :                                        bse_lev_virt, &
     425             :                                        do_im_time, do_kpoints_cubic_RPA, kpoints, &
     426             :                                        t_3c_M, t_3c_O, t_3c_O_compressed, t_3c_O_ind, &
     427         914 :                                        mp2_env%ri_metric, gd_B_occ_bse, gd_B_virt_bse)
     428             :          END IF
     429             : 
     430             :       ELSE
     431             :          ! Canonical MP2-GPW
     432          14 :          IF (nspins == 2) THEN
     433             :             ! alpha-alpha and alpha-beta components
     434           2 :             IF (unit_nr > 0) WRITE (unit_nr, *)
     435           2 :             IF (unit_nr > 0) WRITE (unit_nr, '(T3,A)') 'Alpha (ia|'
     436             :             CALL mp2_gpw_compute( &
     437             :                Emp2, Emp2_Cou, Emp2_EX, qs_env, para_env, para_env_sub, color_sub, &
     438             :                cell, particle_set, &
     439             :                atomic_kind_set, qs_kind_set, Eigenval, nmo, homo, mat_munu, &
     440             :                sab_orb_sub, mo_coeff_o, mo_coeff_v, mp2_env%mp2_gpw%eps_filter, unit_nr, &
     441           2 :                mp2_env%mp2_memory, calc_ex, blacs_env_sub, Emp2_AB)
     442             : 
     443             :             ! beta-beta component
     444           2 :             IF (unit_nr > 0) WRITE (unit_nr, *)
     445           2 :             IF (unit_nr > 0) WRITE (unit_nr, '(T3,A)') 'Beta (ia|'
     446             :             CALL mp2_gpw_compute( &
     447             :                Emp2_BB, Emp2_Cou_BB, Emp2_EX_BB, qs_env, para_env, para_env_sub, color_sub, cell, particle_set, &
     448             :                atomic_kind_set, qs_kind_set, Eigenval(:, 2:2), nmo, homo(2:2), mat_munu, &
     449             :                sab_orb_sub, mo_coeff_o(2:2), mo_coeff_v(2:2), mp2_env%mp2_gpw%eps_filter, unit_nr, &
     450           2 :                mp2_env%mp2_memory, calc_ex, blacs_env_sub)
     451             : 
     452             :             ! make order on the MP2 energy contributions
     453           2 :             Emp2_Cou = Emp2_Cou*0.25_dp
     454           2 :             Emp2_EX = Emp2_EX*0.5_dp
     455             : 
     456           2 :             Emp2_Cou_BB = Emp2_Cou_BB*0.25_dp
     457           2 :             Emp2_EX_BB = Emp2_EX_BB*0.5_dp
     458             : 
     459           2 :             Emp2_S = Emp2_AB
     460           2 :             Emp2_T = Emp2_Cou + Emp2_Cou_BB + Emp2_EX + Emp2_EX_BB
     461             : 
     462           2 :             Emp2_Cou = Emp2_Cou + Emp2_Cou_BB + Emp2_AB
     463           2 :             Emp2_EX = Emp2_EX + Emp2_EX_BB
     464           2 :             Emp2 = Emp2_EX + Emp2_Cou
     465             : 
     466             :          ELSE
     467             :             ! closed shell case
     468             :             CALL mp2_gpw_compute( &
     469             :                Emp2, Emp2_Cou, Emp2_EX, qs_env, para_env, para_env_sub, color_sub, cell, particle_set, &
     470             :                atomic_kind_set, qs_kind_set, Eigenval(:, 1:1), nmo, homo(1:1), mat_munu, &
     471             :                sab_orb_sub, mo_coeff_o(1:1), mo_coeff_v(1:1), mp2_env%mp2_gpw%eps_filter, unit_nr, &
     472          12 :                mp2_env%mp2_memory, calc_ex, blacs_env_sub)
     473             :          END IF
     474             :       END IF
     475             : 
     476             :       ! Free possibly large buffers allocated by dbcsr on the GPU,
     477             :       ! large hybrid dgemm/pdgemm's coming later will need the space.
     478         632 :       CALL dbcsr_clear_mempools()
     479             : 
     480         632 :       IF (calc_forces .AND. .NOT. do_im_time) THEN
     481             :          ! make a copy of mo_coeff_o and mo_coeff_v
     482        1468 :          ALLOCATE (mp2_env%ri_grad%mo_coeff_o(nspins), mp2_env%ri_grad%mo_coeff_v(nspins))
     483         604 :          DO ispin = 1, nspins
     484         344 :             NULLIFY (mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     485         344 :             CALL dbcsr_init_p(mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     486             :             CALL dbcsr_copy(mp2_env%ri_grad%mo_coeff_o(ispin)%matrix, mo_coeff_o(ispin)%matrix, &
     487         344 :                             name="mo_coeff_o"//cp_to_string(ispin))
     488         344 :             NULLIFY (mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     489         344 :             CALL dbcsr_init_p(mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     490             :             CALL dbcsr_copy(mp2_env%ri_grad%mo_coeff_v(ispin)%matrix, mo_coeff_v(ispin)%matrix, &
     491         604 :                             name="mo_coeff_v"//cp_to_string(ispin))
     492             :          END DO
     493         260 :          CALL get_group_dist(gd_array, color_sub, my_group_L_start, my_group_L_end, my_group_L_size)
     494             :       END IF
     495             :       ! Copy mo coeffs for RPA exchange correction
     496         632 :       IF (mp2_env%ri_rpa%exchange_correction /= rpa_exchange_none) THEN
     497          76 :          ALLOCATE (mp2_env%ri_rpa%mo_coeff_o(nspins), mp2_env%ri_rpa%mo_coeff_v(nspins))
     498          26 :          DO ispin = 1, nspins
     499          14 :             CALL dbcsr_copy(mp2_env%ri_rpa%mo_coeff_o(ispin), mo_coeff_o(ispin)%matrix, name="mo_coeff_o")
     500          26 :             CALL dbcsr_copy(mp2_env%ri_rpa%mo_coeff_v(ispin), mo_coeff_v(ispin)%matrix, name="mo_coeff_v")
     501             :          END DO
     502             :       END IF
     503             : 
     504         632 :       IF (.NOT. do_im_time) THEN
     505             : 
     506        1108 :          DO ispin = 1, nspins
     507         610 :             CALL dbcsr_release(mo_coeff_o(ispin)%matrix)
     508         610 :             DEALLOCATE (mo_coeff_o(ispin)%matrix)
     509         610 :             CALL dbcsr_release(mo_coeff_v(ispin)%matrix)
     510         610 :             DEALLOCATE (mo_coeff_v(ispin)%matrix)
     511        1108 :             IF (my_do_gw) THEN
     512          50 :                CALL dbcsr_release(mo_coeff_all(ispin)%matrix)
     513          50 :                DEALLOCATE (mo_coeff_all(ispin)%matrix)
     514             :             END IF
     515             :          END DO
     516         498 :          DEALLOCATE (mo_coeff_o, mo_coeff_v)
     517         498 :          IF (my_do_gw) DEALLOCATE (mo_coeff_all)
     518             : 
     519             :       END IF
     520         632 :       IF (do_bse) THEN
     521          18 :          CALL dbcsr_release(mo_coeff_o_bse(1)%matrix)
     522          18 :          CALL dbcsr_release(mo_coeff_v_bse(1)%matrix)
     523          18 :          DEALLOCATE (mo_coeff_o_bse(1)%matrix)
     524          18 :          DEALLOCATE (mo_coeff_v_bse(1)%matrix)
     525             :       END IF
     526         632 :       DEALLOCATE (mo_coeff_o_bse, mo_coeff_v_bse)
     527             : 
     528             :       ! Release some memory for RPA exchange correction
     529         632 :       IF (calc_forces .AND. do_im_time .OR. &
     530             :           (.NOT. calc_forces .AND. mp2_env%ri_rpa%exchange_correction == rpa_exchange_none)) THEN
     531             : 
     532         360 :          CALL dbcsr_release(mat_munu%matrix)
     533         360 :          DEALLOCATE (mat_munu%matrix)
     534             : 
     535         360 :          CALL release_neighbor_list_sets(sab_orb_sub)
     536             : 
     537             :       END IF
     538             : 
     539             :       ! decide if to do RI-RPA or RI-MP2
     540         632 :       IF (my_do_ri_rpa .OR. my_do_ri_sos_laplace_mp2) THEN
     541             : 
     542         272 :          IF (do_im_time) CALL create_matrix_P(mat_P_global, qs_env, mp2_env, para_env)
     543             : 
     544         704 :          IF (.NOT. ALLOCATED(BIb_C)) ALLOCATE (BIb_C(nspins))
     545        1000 :          IF (.NOT. ALLOCATED(BIb_C_gw)) ALLOCATE (BIb_C_gw(nspins))
     546         704 :          IF (.NOT. ALLOCATED(gd_B_virtual)) ALLOCATE (gd_B_virtual(nspins))
     547             : 
     548             :          ! RI-RPA
     549             :          CALL rpa_ri_compute_en(qs_env, Emp2, mp2_env, BIb_C, BIb_C_gw, BIb_C_bse_ij, BIb_C_bse_ab, &
     550             :                                 para_env, para_env_sub, color_sub, &
     551             :                                 gd_array, gd_B_virtual, gd_B_all, gd_B_occ_bse, gd_B_virt_bse, &
     552             :                                 mo_coeff, fm_matrix_PQ, fm_matrix_L_kpoints, fm_matrix_Minv_L_kpoints, &
     553             :                                 fm_matrix_Minv, fm_matrix_Minv_Vtrunc_Minv, kpoints, &
     554             :                                 Eigenval, nmo, homo, dimen_RI, dimen_RI_red, gw_corr_lev_occ, gw_corr_lev_virt, &
     555             :                                 bse_lev_virt, &
     556             :                                 unit_nr, my_do_ri_sos_laplace_mp2, my_do_gw, do_im_time, do_bse, matrix_s, &
     557             :                                 mat_munu, mat_P_global, t_3c_M, t_3c_O, t_3c_O_compressed, t_3c_O_ind, &
     558             :                                 starts_array_mc, ends_array_mc, &
     559         272 :                                 starts_array_mc_block, ends_array_mc_block, calc_forces)
     560             : 
     561         272 :          IF (mp2_env%ri_rpa%do_rse) &
     562           4 :             CALL rse_energy(qs_env, mp2_env, para_env, dft_control, mo_coeff, nmo, homo, Eigenval)
     563             : 
     564         272 :          IF (do_im_time) THEN
     565         134 :             IF (ASSOCIATED(mat_P_global%matrix)) THEN
     566         134 :                CALL dbcsr_release(mat_P_global%matrix)
     567         134 :                DEALLOCATE (mat_P_global%matrix)
     568             :             END IF
     569             : 
     570         134 :             CALL cp_libint_static_cleanup()
     571         134 :             IF (calc_forces) CALL cp_fm_release(fm_matrix_PQ)
     572             :          END IF
     573             : 
     574             :          ! Release some memory for RPA exchange correction
     575         272 :          IF (mp2_env%ri_rpa%exchange_correction /= rpa_exchange_none) THEN
     576             : 
     577          12 :             CALL dbcsr_release(mat_munu%matrix)
     578          12 :             DEALLOCATE (mat_munu%matrix)
     579             : 
     580          12 :             CALL release_neighbor_list_sets(sab_orb_sub)
     581             : 
     582             :          END IF
     583             : 
     584             :       ELSE
     585         360 :          IF (my_do_ri_mp2) THEN
     586         346 :             Emp2 = 0.0_dp
     587         346 :             Emp2_Cou = 0.0_dp
     588         346 :             Emp2_EX = 0.0_dp
     589             : 
     590             :             ! RI-MP2-GPW compute energy
     591             :             CALL mp2_ri_gpw_compute_en( &
     592             :                Emp2_Cou, Emp2_EX, Emp2_S, Emp2_T, BIb_C, mp2_env, para_env, para_env_sub, color_sub, &
     593             :                gd_array, gd_B_virtual, &
     594         346 :                Eigenval, nmo, homo, dimen_RI_red, unit_nr, calc_forces, calc_ex)
     595             : 
     596             :          END IF
     597             :       END IF
     598             : 
     599             :       ! if we need forces time to calculate the MP2 non-separable contribution
     600             :       ! and start computing the Lagrangian
     601         632 :       IF (calc_forces .AND. .NOT. do_im_time) THEN
     602             : 
     603             :          CALL calc_ri_mp2_nonsep(qs_env, mp2_env, para_env, para_env_sub, cell, &
     604             :                                  particle_set, atomic_kind_set, qs_kind_set, &
     605             :                                  mo_coeff, nmo, homo, dimen_RI, Eigenval, &
     606             :                                  my_group_L_start, my_group_L_end, my_group_L_size, &
     607         260 :                                  sab_orb_sub, mat_munu, blacs_env_sub)
     608             : 
     609         604 :          DO ispin = 1, nspins
     610         344 :             CALL dbcsr_release(mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     611         344 :             DEALLOCATE (mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     612             : 
     613         344 :             CALL dbcsr_release(mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     614         604 :             DEALLOCATE (mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     615             :          END DO
     616         260 :          DEALLOCATE (mp2_env%ri_grad%mo_coeff_o, mp2_env%ri_grad%mo_coeff_v)
     617             : 
     618         260 :          CALL dbcsr_release(mat_munu%matrix)
     619         260 :          DEALLOCATE (mat_munu%matrix)
     620             : 
     621         260 :          CALL release_neighbor_list_sets(sab_orb_sub)
     622             : 
     623             :       END IF
     624             : 
     625             :       !XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx
     626             :       ! moved from above
     627         632 :       IF (my_do_gw .AND. .NOT. do_im_time) THEN
     628          96 :          DO ispin = 1, nspins
     629          50 :             CALL dbcsr_release(mo_coeff_gw(ispin)%matrix)
     630          96 :             DEALLOCATE (mo_coeff_gw(ispin)%matrix)
     631             :          END DO
     632          46 :          DEALLOCATE (mo_coeff_gw)
     633             :       END IF
     634             : 
     635             :       ! re-init the radii to be able to generate pair lists with MP2-appropriate screening
     636         632 :       dft_control%qs_control%eps_pgf_orb = eps_pgf_orb_old
     637         632 :       dft_control%qs_control%eps_rho_rspace = eps_rho_rspace_old
     638         632 :       dft_control%qs_control%eps_gvg_rspace = eps_gvg_rspace_old
     639         632 :       CALL init_interaction_radii(dft_control%qs_control, qs_kind_set)
     640             : 
     641         632 :       CALL cp_blacs_env_release(blacs_env_sub)
     642             : 
     643         632 :       IF (.NOT. mp2_env%ri_g0w0%print_local_bandgap) THEN
     644         626 :          CALL cp_rm_default_logger()
     645         626 :          CALL cp_logger_release(logger_sub)
     646             :       END IF
     647             : 
     648         632 :       CALL mp_para_env_release(para_env_sub)
     649             : 
     650             :       ! finally solve the z-vector equation if forces are required
     651         632 :       IF (calc_forces .AND. .NOT. do_im_time) THEN
     652             :          CALL solve_z_vector_eq(qs_env, mp2_env, para_env, dft_control, &
     653         260 :                                 mo_coeff, nmo, homo, Eigenval, unit_nr)
     654             :       END IF
     655             : 
     656         632 :       DEALLOCATE (Eigenval, mo_coeff)
     657             : 
     658         632 :       CALL timestop(handle)
     659             : 
     660        5002 :    END SUBROUTINE mp2_gpw_main
     661             : 
     662             : ! **************************************************************************************************
     663             : !> \brief ...
     664             : !> \param para_env ...
     665             : !> \param para_env_sub ...
     666             : !> \param mo_coeff ...
     667             : !> \param dimen ...
     668             : !> \param homo ...
     669             : !> \param mat_munu ...
     670             : !> \param mo_coeff_o ...
     671             : !> \param mo_coeff_v ...
     672             : !> \param mo_coeff_all ...
     673             : !> \param mo_coeff_gw ...
     674             : !> \param my_do_gw ...
     675             : !> \param gw_corr_lev_occ ...
     676             : !> \param gw_corr_lev_virt ...
     677             : !> \param my_do_bse ...
     678             : !> \param bse_lev_virt ...
     679             : !> \param mo_coeff_o_bse ...
     680             : !> \param mo_coeff_v_bse ...
     681             : !> \param eps_filter ...
     682             : ! **************************************************************************************************
     683         610 :    SUBROUTINE replicate_mat_to_subgroup(para_env, para_env_sub, mo_coeff, dimen, homo, mat_munu, &
     684             :                                         mo_coeff_o, mo_coeff_v, mo_coeff_all, mo_coeff_gw, my_do_gw, &
     685             :                                         gw_corr_lev_occ, gw_corr_lev_virt, my_do_bse, &
     686             :                                         bse_lev_virt, mo_coeff_o_bse, mo_coeff_v_bse, eps_filter)
     687             :       TYPE(mp_para_env_type), INTENT(IN)                 :: para_env, para_env_sub
     688             :       TYPE(cp_fm_type), INTENT(IN)                       :: mo_coeff
     689             :       INTEGER, INTENT(IN)                                :: dimen, homo
     690             :       TYPE(dbcsr_type), INTENT(INOUT)                    :: mat_munu
     691             :       TYPE(dbcsr_type), POINTER                          :: mo_coeff_o, mo_coeff_v, mo_coeff_all, &
     692             :                                                             mo_coeff_gw
     693             :       LOGICAL, INTENT(IN)                                :: my_do_gw
     694             :       INTEGER, INTENT(IN)                                :: gw_corr_lev_occ, gw_corr_lev_virt
     695             :       LOGICAL, INTENT(IN)                                :: my_do_bse
     696             :       INTEGER, INTENT(IN)                                :: bse_lev_virt
     697             :       TYPE(dbcsr_type), POINTER                          :: mo_coeff_o_bse, mo_coeff_v_bse
     698             :       REAL(KIND=dp), INTENT(IN)                          :: eps_filter
     699             : 
     700             :       CHARACTER(LEN=*), PARAMETER :: routineN = 'replicate_mat_to_subgroup'
     701             : 
     702             :       INTEGER                                            :: handle
     703         610 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: C
     704         610 :       TYPE(group_dist_d1_type)                           :: gd_array
     705             : 
     706         610 :       CALL timeset(routineN, handle)
     707             : 
     708             :       CALL grep_rows_in_subgroups(para_env, para_env_sub, mo_coeff, gd_array, C)
     709             : 
     710             :       ! create and fill mo_coeff_o, mo_coeff_v and mo_coeff_all
     711         610 :       ALLOCATE (mo_coeff_o)
     712             :       CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_o, C(:, 1:homo), &
     713         610 :                                  mat_munu, gd_array, eps_filter)
     714             : 
     715         610 :       ALLOCATE (mo_coeff_v)
     716             :       CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_v, C(:, homo + 1:dimen), &
     717         610 :                                  mat_munu, gd_array, eps_filter)
     718             : 
     719         610 :       IF (my_do_gw) THEN
     720          50 :          ALLOCATE (mo_coeff_gw)
     721             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_gw, C(:, homo - gw_corr_lev_occ + 1:homo + gw_corr_lev_virt), &
     722          50 :                                     mat_munu, gd_array, eps_filter)
     723             : 
     724             :          ! all levels
     725          50 :          ALLOCATE (mo_coeff_all)
     726             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_all, C, &
     727          50 :                                     mat_munu, gd_array, eps_filter)
     728             : 
     729             :       END IF
     730             : 
     731         610 :       IF (my_do_bse) THEN
     732             : 
     733          18 :          ALLOCATE (mo_coeff_o_bse)
     734             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_o_bse, C(:, 1:homo), &
     735          18 :                                     mat_munu, gd_array, eps_filter)
     736             : 
     737          18 :          ALLOCATE (mo_coeff_v_bse)
     738             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_v_bse, C(:, homo + 1:homo + bse_lev_virt), &
     739          18 :                                     mat_munu, gd_array, eps_filter)
     740             : 
     741             :       END IF
     742         610 :       DEALLOCATE (C)
     743         610 :       CALL release_group_dist(gd_array)
     744             : 
     745         610 :       CALL timestop(handle)
     746             : 
     747         610 :    END SUBROUTINE replicate_mat_to_subgroup
     748             : 
     749             : ! **************************************************************************************************
     750             : !> \brief ...
     751             : !> \param para_env ...
     752             : !> \param para_env_sub ...
     753             : !> \param mo_coeff ...
     754             : !> \param gd_array ...
     755             : !> \param C ...
     756             : ! **************************************************************************************************
     757         634 :    SUBROUTINE grep_rows_in_subgroups(para_env, para_env_sub, mo_coeff, gd_array, C)
     758             :       TYPE(mp_para_env_type), INTENT(IN)                 :: para_env, para_env_sub
     759             :       TYPE(cp_fm_type), INTENT(IN)                       :: mo_coeff
     760             :       TYPE(group_dist_d1_type), INTENT(OUT)              :: gd_array
     761             :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :), &
     762             :          INTENT(OUT)                                     :: C
     763             : 
     764             :       CHARACTER(LEN=*), PARAMETER :: routineN = 'grep_rows_in_subgroups'
     765             : 
     766             :       INTEGER :: handle, i_global, iiB, j_global, jjB, max_row_col_local, my_mu_end, my_mu_size, &
     767             :          my_mu_start, ncol_global, ncol_local, ncol_rec, nrow_global, nrow_local, nrow_rec, &
     768             :          proc_receive_static, proc_send_static, proc_shift
     769         634 :       INTEGER, ALLOCATABLE, DIMENSION(:, :)              :: local_col_row_info, rec_col_row_info
     770         634 :       INTEGER, DIMENSION(:), POINTER                     :: col_indices, col_indices_rec, &
     771         634 :                                                             row_indices, row_indices_rec
     772         634 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: local_C, rec_C
     773             :       REAL(KIND=dp), CONTIGUOUS, DIMENSION(:, :), &
     774         634 :          POINTER                                         :: local_C_internal
     775             : 
     776         634 :       CALL timeset(routineN, handle)
     777             : 
     778             :       CALL cp_fm_get_info(matrix=mo_coeff, &
     779             :                           ncol_global=ncol_global, &
     780             :                           nrow_global=nrow_global, &
     781             :                           nrow_local=nrow_local, &
     782             :                           ncol_local=ncol_local, &
     783             :                           row_indices=row_indices, &
     784             :                           col_indices=col_indices, &
     785         634 :                           local_data=local_C_internal)
     786             : 
     787         634 :       CALL create_group_dist(gd_array, para_env_sub%num_pe, nrow_global)
     788         634 :       CALL get_group_dist(gd_array, para_env_sub%mepos, my_mu_start, my_mu_end, my_mu_size)
     789             : 
     790             :       ! local storage for the C matrix
     791        2536 :       ALLOCATE (C(my_mu_size, ncol_global))
     792      265072 :       C = 0.0_dp
     793             : 
     794        2536 :       ALLOCATE (local_C(nrow_local, ncol_local))
     795      142837 :       local_C(:, :) = local_C_internal(1:nrow_local, 1:ncol_local)
     796         634 :       NULLIFY (local_C_internal)
     797             : 
     798         634 :       max_row_col_local = MAX(nrow_local, ncol_local)
     799         634 :       CALL para_env%max(max_row_col_local)
     800             : 
     801        2536 :       ALLOCATE (local_col_row_info(0:max_row_col_local, 2))
     802       26494 :       local_col_row_info = 0
     803             :       ! 0,1 nrows
     804         634 :       local_col_row_info(0, 1) = nrow_local
     805        6489 :       local_col_row_info(1:nrow_local, 1) = row_indices(1:nrow_local)
     806             :       ! 0,2 ncols
     807         634 :       local_col_row_info(0, 2) = ncol_local
     808       12296 :       local_col_row_info(1:ncol_local, 2) = col_indices(1:ncol_local)
     809             : 
     810        1268 :       ALLOCATE (rec_col_row_info(0:max_row_col_local, 2))
     811             : 
     812             :       ! accumulate data on C buffer starting from myself
     813        6489 :       DO iiB = 1, nrow_local
     814        5855 :          i_global = row_indices(iiB)
     815        6489 :          IF (i_global >= my_mu_start .AND. i_global <= my_mu_end) THEN
     816      136396 :             DO jjB = 1, ncol_local
     817      130541 :                j_global = col_indices(jjB)
     818      136396 :                C(i_global - my_mu_start + 1, j_global) = local_C(iiB, jjB)
     819             :             END DO
     820             :          END IF
     821             :       END DO
     822             : 
     823             :       ! start ring communication for collecting the data from the other
     824         634 :       proc_send_static = MODULO(para_env%mepos + 1, para_env%num_pe)
     825         634 :       proc_receive_static = MODULO(para_env%mepos - 1, para_env%num_pe)
     826        1268 :       DO proc_shift = 1, para_env%num_pe - 1
     827             :          ! first exchange information on the local data
     828       26494 :          rec_col_row_info = 0
     829         634 :          CALL para_env%sendrecv(local_col_row_info, proc_send_static, rec_col_row_info, proc_receive_static)
     830         634 :          nrow_rec = rec_col_row_info(0, 1)
     831         634 :          ncol_rec = rec_col_row_info(0, 2)
     832             : 
     833        1902 :          ALLOCATE (row_indices_rec(nrow_rec))
     834        6489 :          row_indices_rec = rec_col_row_info(1:nrow_rec, 1)
     835             : 
     836        1902 :          ALLOCATE (col_indices_rec(ncol_rec))
     837       12296 :          col_indices_rec = rec_col_row_info(1:ncol_rec, 2)
     838             : 
     839        2536 :          ALLOCATE (rec_C(nrow_rec, ncol_rec))
     840      142837 :          rec_C = 0.0_dp
     841             : 
     842             :          ! then send and receive the real data
     843         634 :          CALL para_env%sendrecv(local_C, proc_send_static, rec_C, proc_receive_static)
     844             : 
     845             :          ! accumulate the received data on C buffer
     846        6489 :          DO iiB = 1, nrow_rec
     847        5855 :             i_global = row_indices_rec(iiB)
     848        6489 :             IF (i_global >= my_mu_start .AND. i_global <= my_mu_end) THEN
     849      127704 :                DO jjB = 1, ncol_rec
     850      122235 :                   j_global = col_indices_rec(jjB)
     851      127704 :                   C(i_global - my_mu_start + 1, j_global) = rec_C(iiB, jjB)
     852             :                END DO
     853             :             END IF
     854             :          END DO
     855             : 
     856       26494 :          local_col_row_info(:, :) = rec_col_row_info
     857         634 :          DEALLOCATE (local_C)
     858        1902 :          ALLOCATE (local_C(nrow_rec, ncol_rec))
     859      142837 :          local_C(:, :) = rec_C
     860             : 
     861         634 :          DEALLOCATE (col_indices_rec)
     862         634 :          DEALLOCATE (row_indices_rec)
     863        1268 :          DEALLOCATE (rec_C)
     864             :       END DO
     865             : 
     866         634 :       DEALLOCATE (local_C)
     867         634 :       DEALLOCATE (local_col_row_info)
     868         634 :       DEALLOCATE (rec_col_row_info)
     869             : 
     870         634 :       CALL timestop(handle)
     871             : 
     872        2536 :    END SUBROUTINE grep_rows_in_subgroups
     873             : 
     874             : ! **************************************************************************************************
     875             : !> \brief Encapsulate the building of dbcsr_matrices mo_coeff_(v,o,all)
     876             : !> \param para_env_sub ...
     877             : !> \param mo_coeff_to_build ...
     878             : !> \param Cread ...
     879             : !> \param mat_munu ...
     880             : !> \param gd_array ...
     881             : !> \param eps_filter ...
     882             : !> \author Jan Wilhelm, Code by Mauro Del Ben
     883             : ! **************************************************************************************************
     884        1380 :    SUBROUTINE build_dbcsr_from_rows(para_env_sub, mo_coeff_to_build, Cread, &
     885             :                                     mat_munu, gd_array, eps_filter)
     886             :       TYPE(mp_para_env_type), INTENT(IN)                 :: para_env_sub
     887             :       TYPE(dbcsr_type)                                   :: mo_coeff_to_build
     888             :       REAL(KIND=dp), DIMENSION(:, :), INTENT(IN)         :: Cread
     889             :       TYPE(dbcsr_type), INTENT(INOUT)                    :: mat_munu
     890             :       TYPE(group_dist_d1_type), INTENT(IN)               :: gd_array
     891             :       REAL(KIND=dp), INTENT(IN)                          :: eps_filter
     892             : 
     893             :       CHARACTER(LEN=*), PARAMETER :: routineN = 'build_dbcsr_from_rows'
     894             : 
     895             :       INTEGER :: blk, col, col_offset, col_size, handle, i, i_global, j, j_global, my_mu_end, &
     896             :          my_mu_start, ncol_global, proc_receive, proc_send, proc_shift, rec_mu_end, rec_mu_size, &
     897             :          rec_mu_start, row, row_offset, row_size
     898        1380 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: rec_C
     899        1380 :       REAL(KIND=dp), DIMENSION(:, :), POINTER            :: data_block
     900             :       TYPE(dbcsr_iterator_type)                          :: iter
     901             : 
     902        1380 :       CALL timeset(routineN, handle)
     903             : 
     904        1380 :       ncol_global = SIZE(Cread, 2)
     905             : 
     906        1380 :       CALL get_group_dist(gd_array, para_env_sub%mepos, my_mu_start, my_mu_end)
     907             : 
     908             :       CALL cp_dbcsr_m_by_n_from_row_template(mo_coeff_to_build, template=mat_munu, n=ncol_global, &
     909        1380 :                                              sym=dbcsr_type_no_symmetry, data_type=dbcsr_type_real_default)
     910        1380 :       CALL dbcsr_reserve_all_blocks(mo_coeff_to_build)
     911             : 
     912             :       ! accumulate data on mo_coeff_to_build starting from myself
     913        1380 :       CALL dbcsr_iterator_start(iter, mo_coeff_to_build)
     914        5324 :       DO WHILE (dbcsr_iterator_blocks_left(iter))
     915             :          CALL dbcsr_iterator_next_block(iter, row, col, data_block, blk, &
     916             :                                         row_size=row_size, col_size=col_size, &
     917        3944 :                                         row_offset=row_offset, col_offset=col_offset)
     918       31312 :          DO i = 1, row_size
     919       25988 :             i_global = row_offset + i - 1
     920       29932 :             IF (i_global >= my_mu_start .AND. i_global <= my_mu_end) THEN
     921      327464 :                DO j = 1, col_size
     922      301652 :                   j_global = col_offset + j - 1
     923      327464 :                   data_block(i, j) = Cread(i_global - my_mu_start + 1, col_offset + j - 1)
     924             :                END DO
     925             :             END IF
     926             :          END DO
     927             :       END DO
     928        1380 :       CALL dbcsr_iterator_stop(iter)
     929             : 
     930             :       ! start ring communication in the subgroup for collecting the data from the other
     931             :       ! proc (occupied)
     932        1460 :       DO proc_shift = 1, para_env_sub%num_pe - 1
     933          80 :          proc_send = MODULO(para_env_sub%mepos + proc_shift, para_env_sub%num_pe)
     934          80 :          proc_receive = MODULO(para_env_sub%mepos - proc_shift, para_env_sub%num_pe)
     935             : 
     936          80 :          CALL get_group_dist(gd_array, proc_receive, rec_mu_start, rec_mu_end, rec_mu_size)
     937             : 
     938         320 :          ALLOCATE (rec_C(rec_mu_size, ncol_global))
     939        9110 :          rec_C = 0.0_dp
     940             : 
     941             :          ! then send and receive the real data
     942        9110 :          CALL para_env_sub%sendrecv(Cread, proc_send, rec_C, proc_receive)
     943             : 
     944             :          ! accumulate data on mo_coeff_to_build the data received from proc_rec
     945          80 :          CALL dbcsr_iterator_start(iter, mo_coeff_to_build)
     946         188 :          DO WHILE (dbcsr_iterator_blocks_left(iter))
     947             :             CALL dbcsr_iterator_next_block(iter, row, col, data_block, blk, &
     948             :                                            row_size=row_size, col_size=col_size, &
     949         108 :                                            row_offset=row_offset, col_offset=col_offset)
     950         912 :             DO i = 1, row_size
     951         724 :                i_global = row_offset + i - 1
     952         832 :                IF (i_global >= rec_mu_start .AND. i_global <= rec_mu_end) THEN
     953        1910 :                   DO j = 1, col_size
     954        1734 :                      j_global = col_offset + j - 1
     955        1910 :                      data_block(i, j) = rec_C(i_global - rec_mu_start + 1, col_offset + j - 1)
     956             :                   END DO
     957             :                END IF
     958             :             END DO
     959             :          END DO
     960          80 :          CALL dbcsr_iterator_stop(iter)
     961             : 
     962        1620 :          DEALLOCATE (rec_C)
     963             : 
     964             :       END DO
     965        1380 :       CALL dbcsr_filter(mo_coeff_to_build, eps_filter)
     966             : 
     967        1380 :       CALL timestop(handle)
     968             : 
     969        2760 :    END SUBROUTINE build_dbcsr_from_rows
     970             : 
     971             : ! **************************************************************************************************
     972             : !> \brief Encapsulate the building of dbcsr_matrix mat_munu
     973             : !> \param mat_munu ...
     974             : !> \param qs_env ...
     975             : !> \param eps_grid ...
     976             : !> \param blacs_env_sub ...
     977             : !> \param do_ri_aux_basis ...
     978             : !> \param do_mixed_basis ...
     979             : !> \param group_size_prim ...
     980             : !> \param do_alloc_blocks_from_nbl ...
     981             : !> \param do_kpoints ...
     982             : !> \param sab_orb_sub ...
     983             : !> \param dbcsr_sym_type ...
     984             : !> \author Jan Wilhelm, code by Mauro Del Ben
     985             : ! **************************************************************************************************
     986         856 :    SUBROUTINE create_mat_munu(mat_munu, qs_env, eps_grid, blacs_env_sub, &
     987             :                               do_ri_aux_basis, do_mixed_basis, group_size_prim, &
     988             :                               do_alloc_blocks_from_nbl, do_kpoints, sab_orb_sub, dbcsr_sym_type)
     989             : 
     990             :       TYPE(dbcsr_p_type), INTENT(OUT)                    :: mat_munu
     991             :       TYPE(qs_environment_type), POINTER                 :: qs_env
     992             :       REAL(KIND=dp)                                      :: eps_grid
     993             :       TYPE(cp_blacs_env_type), POINTER                   :: blacs_env_sub
     994             :       LOGICAL, INTENT(IN), OPTIONAL                      :: do_ri_aux_basis, do_mixed_basis
     995             :       INTEGER, INTENT(IN), OPTIONAL                      :: group_size_prim
     996             :       LOGICAL, INTENT(IN), OPTIONAL                      :: do_alloc_blocks_from_nbl, do_kpoints
     997             :       TYPE(neighbor_list_set_p_type), DIMENSION(:), &
     998             :          OPTIONAL, POINTER                               :: sab_orb_sub
     999             :       CHARACTER, OPTIONAL                                :: dbcsr_sym_type
    1000             : 
    1001             :       CHARACTER(LEN=*), PARAMETER                        :: routineN = 'create_mat_munu'
    1002             : 
    1003             :       CHARACTER                                          :: my_dbcsr_sym_type
    1004             :       INTEGER                                            :: handle, ikind, natom, nkind
    1005         856 :       INTEGER, DIMENSION(:), POINTER                     :: col_blk_sizes, row_blk_sizes
    1006             :       LOGICAL                                            :: my_do_alloc_blocks_from_nbl, &
    1007             :                                                             my_do_kpoints, my_do_mixed_basis, &
    1008             :                                                             my_do_ri_aux_basis
    1009         856 :       LOGICAL, ALLOCATABLE, DIMENSION(:)                 :: orb_present
    1010         856 :       REAL(dp), ALLOCATABLE, DIMENSION(:)                :: orb_radius
    1011         856 :       REAL(dp), ALLOCATABLE, DIMENSION(:, :)             :: pair_radius
    1012             :       REAL(KIND=dp)                                      :: subcells
    1013         856 :       TYPE(atomic_kind_type), DIMENSION(:), POINTER      :: atomic_kind_set
    1014             :       TYPE(cell_type), POINTER                           :: cell
    1015             :       TYPE(dbcsr_distribution_type), POINTER             :: dbcsr_dist_sub
    1016             :       TYPE(dft_control_type), POINTER                    :: dft_control
    1017             :       TYPE(distribution_1d_type), POINTER                :: local_molecules_sub, local_particles_sub
    1018             :       TYPE(distribution_2d_type), POINTER                :: distribution_2d_sub
    1019         856 :       TYPE(gto_basis_set_p_type), DIMENSION(:), POINTER  :: basis_set_ri_aux
    1020             :       TYPE(gto_basis_set_type), POINTER                  :: orb_basis_set
    1021         856 :       TYPE(local_atoms_type), ALLOCATABLE, DIMENSION(:)  :: atom2d
    1022         856 :       TYPE(molecule_kind_type), DIMENSION(:), POINTER    :: molecule_kind_set
    1023         856 :       TYPE(molecule_type), DIMENSION(:), POINTER         :: molecule_set
    1024             :       TYPE(neighbor_list_set_p_type), DIMENSION(:), &
    1025         856 :          POINTER                                         :: my_sab_orb_sub
    1026         856 :       TYPE(particle_type), DIMENSION(:), POINTER         :: particle_set
    1027         856 :       TYPE(qs_kind_type), DIMENSION(:), POINTER          :: qs_kind_set
    1028             : 
    1029         856 :       CALL timeset(routineN, handle)
    1030             : 
    1031         856 :       NULLIFY (basis_set_ri_aux)
    1032             : 
    1033         856 :       my_do_ri_aux_basis = .FALSE.
    1034         856 :       IF (PRESENT(do_ri_aux_basis)) THEN
    1035         200 :          my_do_ri_aux_basis = do_ri_aux_basis
    1036             :       END IF
    1037             : 
    1038         856 :       my_do_mixed_basis = .FALSE.
    1039         856 :       IF (PRESENT(do_mixed_basis)) THEN
    1040           0 :          my_do_mixed_basis = do_mixed_basis
    1041             :       END IF
    1042             : 
    1043         856 :       my_do_alloc_blocks_from_nbl = .FALSE.
    1044         856 :       IF (PRESENT(do_alloc_blocks_from_nbl)) THEN
    1045         656 :          my_do_alloc_blocks_from_nbl = do_alloc_blocks_from_nbl
    1046             :       END IF
    1047             : 
    1048         856 :       my_do_kpoints = .FALSE.
    1049         856 :       IF (PRESENT(do_kpoints)) THEN
    1050         766 :          my_do_kpoints = do_kpoints
    1051             :       END IF
    1052             : 
    1053         856 :       my_dbcsr_sym_type = dbcsr_type_no_symmetry
    1054         856 :       IF (PRESENT(dbcsr_sym_type)) THEN
    1055         656 :          my_dbcsr_sym_type = dbcsr_sym_type
    1056             :       END IF
    1057             : 
    1058             :       CALL get_qs_env(qs_env, &
    1059             :                       qs_kind_set=qs_kind_set, &
    1060             :                       cell=cell, &
    1061             :                       particle_set=particle_set, &
    1062             :                       atomic_kind_set=atomic_kind_set, &
    1063             :                       molecule_set=molecule_set, &
    1064             :                       molecule_kind_set=molecule_kind_set, &
    1065         856 :                       dft_control=dft_control)
    1066             : 
    1067         856 :       IF (my_do_kpoints) THEN
    1068             :          ! please choose EPS_PGF_ORB in QS section smaller than EPS_GRID in WFC_GPW section
    1069           8 :          IF (eps_grid < dft_control%qs_control%eps_pgf_orb) THEN
    1070           0 :             eps_grid = dft_control%qs_control%eps_pgf_orb
    1071           0 :             CPWARN("WFC_GPW%EPS_GRID has been set to QS%EPS_PGF_ORB")
    1072             :          END IF
    1073             :       END IF
    1074             : 
    1075             :       ! hack hack hack XXXXXXXXXXXXXXX ... to be fixed
    1076         856 :       dft_control%qs_control%eps_pgf_orb = eps_grid
    1077         856 :       dft_control%qs_control%eps_rho_rspace = eps_grid
    1078         856 :       dft_control%qs_control%eps_gvg_rspace = eps_grid
    1079         856 :       CALL init_interaction_radii(dft_control%qs_control, qs_kind_set)
    1080             : 
    1081             :       ! get a distribution_1d
    1082         856 :       NULLIFY (local_particles_sub, local_molecules_sub)
    1083             :       CALL distribute_molecules_1d(atomic_kind_set=atomic_kind_set, &
    1084             :                                    particle_set=particle_set, &
    1085             :                                    local_particles=local_particles_sub, &
    1086             :                                    molecule_kind_set=molecule_kind_set, &
    1087             :                                    molecule_set=molecule_set, &
    1088             :                                    local_molecules=local_molecules_sub, &
    1089         856 :                                    force_env_section=qs_env%input)
    1090             : 
    1091             :       ! get a distribution_2d
    1092         856 :       NULLIFY (distribution_2d_sub)
    1093             :       CALL distribute_molecules_2d(cell=cell, &
    1094             :                                    atomic_kind_set=atomic_kind_set, &
    1095             :                                    qs_kind_set=qs_kind_set, &
    1096             :                                    particle_set=particle_set, &
    1097             :                                    molecule_kind_set=molecule_kind_set, &
    1098             :                                    molecule_set=molecule_set, &
    1099             :                                    distribution_2d=distribution_2d_sub, &
    1100             :                                    blacs_env=blacs_env_sub, &
    1101         856 :                                    force_env_section=qs_env%input)
    1102             : 
    1103             :       ! Build the sub orbital-orbital overlap neighbor lists
    1104         856 :       CALL section_vals_val_get(qs_env%input, "DFT%SUBCELLS", r_val=subcells)
    1105         856 :       nkind = SIZE(atomic_kind_set)
    1106        4148 :       ALLOCATE (atom2d(nkind))
    1107             : 
    1108             :       CALL atom2d_build(atom2d, local_particles_sub, distribution_2d_sub, atomic_kind_set, &
    1109         856 :                         molecule_set, molecule_only=.FALSE., particle_set=particle_set)
    1110             : 
    1111        2568 :       ALLOCATE (orb_present(nkind))
    1112        2568 :       ALLOCATE (orb_radius(nkind))
    1113        3424 :       ALLOCATE (pair_radius(nkind, nkind))
    1114             : 
    1115        2436 :       DO ikind = 1, nkind
    1116        1580 :          CALL get_qs_kind(qs_kind_set(ikind), basis_set=orb_basis_set)
    1117        2436 :          IF (ASSOCIATED(orb_basis_set)) THEN
    1118        1580 :             orb_present(ikind) = .TRUE.
    1119        1580 :             CALL get_gto_basis_set(gto_basis_set=orb_basis_set, kind_radius=orb_radius(ikind))
    1120             :          ELSE
    1121           0 :             orb_present(ikind) = .FALSE.
    1122           0 :             orb_radius(ikind) = 0.0_dp
    1123             :          END IF
    1124             :       END DO
    1125             : 
    1126         856 :       CALL pair_radius_setup(orb_present, orb_present, orb_radius, orb_radius, pair_radius)
    1127             : 
    1128         856 :       IF (PRESENT(sab_orb_sub)) THEN
    1129         656 :          NULLIFY (sab_orb_sub)
    1130             :          ! for cubic RPA/GW with kpoints, we need all neighbors and not only the symmetric ones
    1131         656 :          IF (my_do_kpoints) THEN
    1132             :             CALL build_neighbor_lists(sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1133             :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub", &
    1134           4 :                                       symmetric=.FALSE.)
    1135             :          ELSE
    1136             :             CALL build_neighbor_lists(sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1137         652 :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub")
    1138             :          END IF
    1139             :       ELSE
    1140         200 :          NULLIFY (my_sab_orb_sub)
    1141             :          ! for cubic RPA/GW with kpoints, we need all neighbors and not only the symmetric ones
    1142         200 :          IF (my_do_kpoints) THEN
    1143             :             CALL build_neighbor_lists(my_sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1144             :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub", &
    1145           4 :                                       symmetric=.FALSE.)
    1146             :          ELSE
    1147             :             CALL build_neighbor_lists(my_sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1148         196 :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub")
    1149             :          END IF
    1150             :       END IF
    1151         856 :       CALL atom2d_cleanup(atom2d)
    1152         856 :       DEALLOCATE (atom2d)
    1153         856 :       DEALLOCATE (orb_present, orb_radius, pair_radius)
    1154             : 
    1155             :       ! a dbcsr_dist
    1156         856 :       ALLOCATE (dbcsr_dist_sub)
    1157         856 :       CALL cp_dbcsr_dist2d_to_dist(distribution_2d_sub, dbcsr_dist_sub)
    1158             : 
    1159             :       ! build a dbcsr matrix the hard way
    1160         856 :       natom = SIZE(particle_set)
    1161        2568 :       ALLOCATE (row_blk_sizes(natom))
    1162         856 :       IF (my_do_ri_aux_basis) THEN
    1163             : 
    1164         708 :          ALLOCATE (basis_set_ri_aux(nkind))
    1165         178 :          CALL basis_set_list_setup(basis_set_ri_aux, "RI_AUX", qs_kind_set)
    1166         178 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=row_blk_sizes, basis=basis_set_ri_aux)
    1167         178 :          DEALLOCATE (basis_set_ri_aux)
    1168             : 
    1169         678 :       ELSE IF (my_do_mixed_basis) THEN
    1170             : 
    1171           0 :          ALLOCATE (basis_set_ri_aux(nkind))
    1172           0 :          CALL basis_set_list_setup(basis_set_ri_aux, "RI_AUX", qs_kind_set)
    1173           0 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=row_blk_sizes, basis=basis_set_ri_aux)
    1174           0 :          DEALLOCATE (basis_set_ri_aux)
    1175             : 
    1176           0 :          ALLOCATE (col_blk_sizes(natom))
    1177             : 
    1178           0 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=col_blk_sizes)
    1179           0 :          col_blk_sizes = col_blk_sizes*group_size_prim
    1180             : 
    1181             :       ELSE
    1182         678 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=row_blk_sizes)
    1183             :       END IF
    1184             : 
    1185             :       NULLIFY (mat_munu%matrix)
    1186         856 :       ALLOCATE (mat_munu%matrix)
    1187             : 
    1188         856 :       IF (my_do_ri_aux_basis) THEN
    1189             : 
    1190             :          CALL dbcsr_create(matrix=mat_munu%matrix, &
    1191             :                            name="(ai|munu)", &
    1192             :                            dist=dbcsr_dist_sub, matrix_type=my_dbcsr_sym_type, &
    1193             :                            row_blk_size=row_blk_sizes, col_blk_size=row_blk_sizes, &
    1194         178 :                            nze=0)
    1195             : 
    1196         678 :       ELSE IF (my_do_mixed_basis) THEN
    1197             : 
    1198             :          CALL dbcsr_create(matrix=mat_munu%matrix, &
    1199             :                            name="(ai|munu)", &
    1200             :                            dist=dbcsr_dist_sub, matrix_type=my_dbcsr_sym_type, &
    1201             :                            row_blk_size=row_blk_sizes, col_blk_size=col_blk_sizes, &
    1202           0 :                            nze=0)
    1203             : 
    1204             :       ELSE
    1205             : 
    1206             :          CALL dbcsr_create(matrix=mat_munu%matrix, &
    1207             :                            name="(ai|munu)", &
    1208             :                            dist=dbcsr_dist_sub, matrix_type=my_dbcsr_sym_type, &
    1209             :                            row_blk_size=row_blk_sizes, col_blk_size=row_blk_sizes, &
    1210         678 :                            nze=0)
    1211             : 
    1212         678 :          IF (my_do_alloc_blocks_from_nbl) THEN
    1213             : 
    1214         522 :             IF (PRESENT(sab_orb_sub)) THEN
    1215         522 :                CALL cp_dbcsr_alloc_block_from_nbl(mat_munu%matrix, sab_orb_sub)
    1216             :             ELSE
    1217           0 :                CALL cp_dbcsr_alloc_block_from_nbl(mat_munu%matrix, my_sab_orb_sub)
    1218             :             END IF
    1219             : 
    1220             :          END IF
    1221             : 
    1222             :       END IF
    1223             : 
    1224         856 :       DEALLOCATE (row_blk_sizes)
    1225             : 
    1226         856 :       IF (my_do_mixed_basis) THEN
    1227           0 :          DEALLOCATE (col_blk_sizes)
    1228             :       END IF
    1229             : 
    1230         856 :       CALL dbcsr_distribution_release(dbcsr_dist_sub)
    1231         856 :       DEALLOCATE (dbcsr_dist_sub)
    1232             : 
    1233         856 :       CALL distribution_2d_release(distribution_2d_sub)
    1234             : 
    1235         856 :       CALL distribution_1d_release(local_particles_sub)
    1236         856 :       CALL distribution_1d_release(local_molecules_sub)
    1237             : 
    1238         856 :       IF (.NOT. PRESENT(sab_orb_sub)) THEN
    1239         200 :          CALL release_neighbor_list_sets(my_sab_orb_sub)
    1240             :       END IF
    1241             : 
    1242         856 :       CALL timestop(handle)
    1243             : 
    1244        3424 :    END SUBROUTINE create_mat_munu
    1245             : 
    1246             : ! **************************************************************************************************
    1247             : !> \brief ...
    1248             : !> \param mat_P_global ...
    1249             : !> \param qs_env ...
    1250             : !> \param mp2_env ...
    1251             : !> \param para_env ...
    1252             : ! **************************************************************************************************
    1253         134 :    SUBROUTINE create_matrix_P(mat_P_global, qs_env, mp2_env, para_env)
    1254             : 
    1255             :       TYPE(dbcsr_p_type), INTENT(OUT)                    :: mat_P_global
    1256             :       TYPE(qs_environment_type), POINTER                 :: qs_env
    1257             :       TYPE(mp2_type)                                     :: mp2_env
    1258             :       TYPE(mp_para_env_type), POINTER                    :: para_env
    1259             : 
    1260             :       CHARACTER(LEN=*), PARAMETER                        :: routineN = 'create_matrix_P'
    1261             : 
    1262             :       INTEGER                                            :: blacs_grid_layout, handle
    1263             :       LOGICAL                                            :: blacs_repeatable
    1264             :       TYPE(cp_blacs_env_type), POINTER                   :: blacs_env_global
    1265             : 
    1266         134 :       CALL timeset(routineN, handle)
    1267             : 
    1268         134 :       blacs_grid_layout = BLACS_GRID_SQUARE
    1269         134 :       blacs_repeatable = .TRUE.
    1270         134 :       NULLIFY (blacs_env_global)
    1271             :       CALL cp_blacs_env_create(blacs_env_global, para_env, &
    1272             :                                blacs_grid_layout, &
    1273         134 :                                blacs_repeatable)
    1274             : 
    1275             :       CALL create_mat_munu(mat_P_global, qs_env, mp2_env%mp2_gpw%eps_grid, &
    1276             :                            blacs_env_global, do_ri_aux_basis=.TRUE., &
    1277         134 :                            do_kpoints=mp2_env%ri_rpa_im_time%do_im_time_kpoints)
    1278             : 
    1279         134 :       CALL dbcsr_reserve_all_blocks(mat_P_global%matrix)
    1280         134 :       CALL cp_blacs_env_release(blacs_env_global)
    1281             : 
    1282         134 :       CALL timestop(handle)
    1283             : 
    1284         134 :    END SUBROUTINE
    1285             : 
    1286             : ! **************************************************************************************************
    1287             : !> \brief ...
    1288             : !> \param dft_control ...
    1289             : !> \param eps_pgf_orb_old ...
    1290             : !> \param eps_rho_rspace_old ...
    1291             : !> \param eps_gvg_rspace_old ...
    1292             : ! **************************************************************************************************
    1293         632 :    PURE SUBROUTINE get_eps_old(dft_control, eps_pgf_orb_old, eps_rho_rspace_old, eps_gvg_rspace_old)
    1294             : 
    1295             :       TYPE(dft_control_type), INTENT(INOUT)              :: dft_control
    1296             :       REAL(kind=dp), INTENT(OUT)                         :: eps_pgf_orb_old, eps_rho_rspace_old, &
    1297             :                                                             eps_gvg_rspace_old
    1298             : 
    1299             :       ! re-init the radii to be able to generate pair lists with MP2-appropriate screening
    1300         632 :       eps_pgf_orb_old = dft_control%qs_control%eps_pgf_orb
    1301         632 :       eps_rho_rspace_old = dft_control%qs_control%eps_rho_rspace
    1302         632 :       eps_gvg_rspace_old = dft_control%qs_control%eps_gvg_rspace
    1303             : 
    1304         632 :    END SUBROUTINE get_eps_old
    1305             : 
    1306             : END MODULE mp2_gpw

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