LCOV - code coverage report
Current view: top level - src - mp2_gpw.F (source / functions) Hit Total Coverage
Test: CP2K Regtests (git:2fce0f8) Lines: 461 478 96.4 %
Date: 2024-12-21 06:28:57 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         670 :    SUBROUTINE mp2_gpw_main(qs_env, mp2_env, Emp2, Emp2_Cou, Emp2_EX, Emp2_S, Emp2_T, &
     128         670 :                            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         670 :       INTEGER, ALLOCATABLE, DIMENSION(:) :: ends_array_mc, ends_array_mc_block, gw_corr_lev_occ, &
     146         670 :          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         670 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: Eigenval
     154         670 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :, :)     :: BIb_C_bse_ab, BIb_C_bse_ij
     155         670 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: mo_eigenvalues
     156         670 :       TYPE(atomic_kind_type), DIMENSION(:), POINTER      :: atomic_kind_set
     157             :       TYPE(block_ind_type), ALLOCATABLE, &
     158         670 :          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         670 :       TYPE(cp_fm_type), ALLOCATABLE, DIMENSION(:)        :: mo_coeff
     163         670 :       TYPE(cp_fm_type), ALLOCATABLE, DIMENSION(:, :)     :: fm_matrix_L_kpoints, fm_matrix_Minv, &
     164         670 :                                                             fm_matrix_Minv_L_kpoints, &
     165         670 :                                                             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         670 :       TYPE(dbcsr_p_type), ALLOCATABLE, DIMENSION(:)      :: mo_coeff_all, mo_coeff_gw, mo_coeff_o, &
     170         670 :                                                             mo_coeff_o_bse, mo_coeff_v, &
     171         670 :                                                             mo_coeff_v_bse
     172         670 :       TYPE(dbcsr_p_type), DIMENSION(:), POINTER          :: matrix_s
     173         670 :       TYPE(dbcsr_p_type), DIMENSION(:, :), POINTER       :: matrix_s_kp
     174        4690 :       TYPE(dbt_type)                                     :: t_3c_M
     175         670 :       TYPE(dbt_type), ALLOCATABLE, DIMENSION(:, :)       :: t_3c_O
     176             :       TYPE(dft_control_type), POINTER                    :: dft_control
     177         670 :       TYPE(group_dist_d1_type)                           :: gd_array, gd_B_all, gd_B_occ_bse, &
     178         670 :                                                             gd_B_virt_bse
     179             :       TYPE(group_dist_d1_type), ALLOCATABLE, &
     180         670 :          DIMENSION(:)                                    :: gd_B_virtual
     181             :       TYPE(hfx_compression_type), ALLOCATABLE, &
     182         670 :          DIMENSION(:, :, :)                              :: t_3c_O_compressed
     183             :       TYPE(kpoint_type), POINTER                         :: kpoints, kpoints_from_DFT
     184         670 :       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         670 :          POINTER                                         :: sab_orb_sub
     188         670 :       TYPE(particle_type), DIMENSION(:), POINTER         :: particle_set
     189         670 :       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         670 :          DIMENSION(:)                                    :: BIb_C, BIb_C_gw
     193             : 
     194         670 :       CALL timeset(routineN, handle)
     195             : 
     196             :       ! check if we want to do ri-mp2
     197         670 :       my_do_ri_mp2 = .FALSE.
     198         670 :       IF (PRESENT(do_ri_mp2)) my_do_ri_mp2 = do_ri_mp2
     199             : 
     200             :       ! check if we want to do ri-rpa
     201         670 :       my_do_ri_rpa = .FALSE.
     202         670 :       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         670 :       my_do_ri_sos_laplace_mp2 = .FALSE.
     206         670 :       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         670 :       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         670 :       do_im_time = mp2_env%do_im_time
     215         670 :       do_bse = qs_env%mp2_env%bse%do_bse
     216         670 :       do_kpoints_cubic_RPA = qs_env%mp2_env%ri_rpa_im_time%do_im_time_kpoints
     217             : 
     218         670 :       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         670 :       nspins = SIZE(mos_mp2)
     224             : 
     225             :       ! ... setup needed to be able to qs_integrate in a subgroup.
     226         670 :       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         666 :          CALL get_qs_env(qs_env=qs_env, dft_control=dft_control, mos=mos)
     231             :       END IF
     232         670 :       CALL get_mo_set(mo_set=mos_mp2(1), nao=dimen)
     233        6178 :       ALLOCATE (homo(nspins), Eigenval(dimen, nspins), mo_coeff(nspins))
     234        1488 :       DO ispin = 1, nspins
     235             :          CALL get_mo_set(mo_set=mos_mp2(ispin), &
     236             :                          eigenvalues=mo_eigenvalues, nmo=nmo, homo=homo(ispin), &
     237         818 :                          mo_coeff=mo_coeff_ptr)
     238         818 :          mo_coeff(ispin) = mo_coeff_ptr
     239       17884 :          Eigenval(:, ispin) = mo_eigenvalues(:)
     240             :       END DO
     241             : 
     242             :       ! a para_env
     243         670 :       color_sub = para_env%mepos/mp2_env%mp2_num_proc
     244         670 :       ALLOCATE (para_env_sub)
     245         670 :       CALL para_env_sub%from_split(para_env, color_sub)
     246             : 
     247             :       ! each of the sub groups might need to generate output
     248         670 :       logger => cp_get_default_logger()
     249         670 :       IF (para_env%is_source()) THEN
     250         335 :          local_unit_nr = cp_logger_get_default_unit_nr(logger, local=.FALSE.)
     251             :       ELSE
     252         335 :          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         670 :                       matrix_s_kp=matrix_s_kp)
     264             : 
     265         670 :       CALL get_cell(cell=cell, periodic=periodic)
     266             : 
     267         670 :       IF (do_im_time) THEN
     268         134 :          IF (mp2_env%ri_metric%potential_type == ri_default) THEN
     269         420 :             IF (SUM(periodic) == 1 .OR. SUM(periodic) == 3) THEN
     270           6 :                mp2_env%ri_metric%potential_type = do_potential_id
     271             :             ELSE
     272          54 :                mp2_env%ri_metric%potential_type = do_potential_truncated
     273             :             END IF
     274             :          END IF
     275             : 
     276             :          ! statically initialize libint
     277         134 :          CALL cp_libint_static_init()
     278             : 
     279             :       END IF
     280             : 
     281         670 :       IF (mp2_env%ri_metric%potential_type == ri_default) THEN
     282         324 :          mp2_env%ri_metric%potential_type = do_potential_coulomb
     283             :       END IF
     284             : 
     285         670 :       IF (mp2_env%eri_method == eri_default) THEN
     286        1176 :          IF (SUM(periodic) > 0) mp2_env%eri_method = do_eri_gpw
     287        1176 :          IF (SUM(periodic) == 0) mp2_env%eri_method = do_eri_os
     288        1176 :          IF (SUM(mp2_env%ri_rpa_im_time%kp_grid) > 0) mp2_env%eri_method = do_eri_os
     289         294 :          IF (mp2_env%method == mp2_method_gpw) mp2_env%eri_method = do_eri_gpw
     290         294 :          IF (mp2_env%method == ri_mp2_method_gpw) mp2_env%eri_method = do_eri_gpw
     291         294 :          IF (mp2_env%ri_rpa_im_time%do_im_time_kpoints) mp2_env%eri_method = do_eri_os
     292         294 :          IF (calc_forces .AND. mp2_env%eri_method == do_eri_os) mp2_env%eri_method = do_eri_gpw
     293             :       END IF
     294         670 :       eri_method = mp2_env%eri_method
     295             : 
     296         670 :       IF (unit_nr > 0 .AND. mp2_env%eri_method == do_eri_gpw) THEN
     297             :          WRITE (UNIT=unit_nr, FMT="(T3,A,T71,F10.1)") &
     298         183 :             "GPW_INFO| Density cutoff [a.u.]:", mp2_env%mp2_gpw%cutoff*0.5_dp
     299             :          WRITE (UNIT=unit_nr, FMT="(T3,A,T71,F10.1)") &
     300         183 :             "GPW_INFO| Relative density cutoff [a.u.]:", mp2_env%mp2_gpw%relative_cutoff*0.5_dp
     301         183 :          CALL m_flush(unit_nr)
     302             :       END IF
     303             : 
     304             :       ! MG: Disable logger layer for BSE, misses some key information to print cube files properly
     305         670 :       IF (.NOT. (mp2_env%ri_g0w0%print_local_bandgap .OR. mp2_env%bse%do_nto_analysis)) THEN
     306             :          ! a logger
     307         660 :          NULLIFY (logger_sub)
     308             :          CALL cp_logger_create(logger_sub, para_env=para_env_sub, &
     309             :                                default_global_unit_nr=local_unit_nr, &
     310         660 :                                close_global_unit_on_dealloc=.FALSE.)
     311         660 :          CALL cp_logger_set(logger_sub, local_filename="MP2_localLog")
     312             :          ! set to a custom print level (we could also have a different print level for para_env%source)
     313         660 :          logger_sub%iter_info%print_level = mp2_env%mp2_gpw%print_level
     314         660 :          CALL cp_add_default_logger(logger_sub)
     315             :       END IF
     316             : 
     317             :       ! a blacs_env (ignore the globenv stored defaults for now)
     318         670 :       blacs_grid_layout = BLACS_GRID_SQUARE
     319         670 :       blacs_repeatable = .TRUE.
     320         670 :       NULLIFY (blacs_env_sub)
     321             :       CALL cp_blacs_env_create(blacs_env_sub, para_env_sub, &
     322             :                                blacs_grid_layout, &
     323         670 :                                blacs_repeatable)
     324             : 
     325         670 :       blacs_env_sub_mat_munu => blacs_env_sub
     326             : 
     327         670 :       matrix_s(1:1) => matrix_s_kp(1:1, 1)
     328             : 
     329         670 :       CALL get_eps_old(dft_control, eps_pgf_orb_old, eps_rho_rspace_old, eps_gvg_rspace_old)
     330             : 
     331             :       CALL create_mat_munu(mat_munu, qs_env, mp2_env%mp2_gpw%eps_grid, &
     332             :                            blacs_env_sub_mat_munu, do_alloc_blocks_from_nbl=.NOT. do_im_time, sab_orb_sub=sab_orb_sub, &
     333             :                            do_kpoints=mp2_env%ri_rpa_im_time%do_im_time_kpoints, &
     334         670 :                            dbcsr_sym_type=dbcsr_type_symmetric)
     335             : 
     336             :       ! which RI metric we want to have
     337         670 :       ri_metric_type = mp2_env%ri_metric%potential_type
     338             : 
     339             :       ! which interaction potential
     340         670 :       potential_type = mp2_env%potential_parameter%potential_type
     341             : 
     342             :       ! check if we want to do ri-g0w0 on top of ri-rpa
     343         670 :       my_do_gw = mp2_env%ri_rpa%do_ri_g0w0
     344        2010 :       ALLOCATE (gw_corr_lev_occ(nspins), gw_corr_lev_virt(nspins))
     345         670 :       gw_corr_lev_occ(1) = mp2_env%ri_g0w0%corr_mos_occ
     346         670 :       gw_corr_lev_virt(1) = mp2_env%ri_g0w0%corr_mos_virt
     347         670 :       IF (nspins == 2) THEN
     348         148 :          gw_corr_lev_occ(2) = mp2_env%ri_g0w0%corr_mos_occ_beta
     349         148 :          gw_corr_lev_virt(2) = mp2_env%ri_g0w0%corr_mos_virt_beta
     350             :       END IF
     351             : 
     352         670 :       IF (do_bse) THEN
     353          42 :          IF (nspins > 1) THEN
     354           0 :             CPABORT("BSE not implemented for open shell calculations")
     355             :          END IF
     356             :          !Keep default behavior for occupied
     357             :          ! We do not implement an explicit bse_lev_occ here, because the small number of occupied levels
     358             :          ! does not critically influence the memory
     359          42 :          bse_lev_virt = gw_corr_lev_virt(1)
     360             :       END IF
     361             : 
     362             :       ! After the components are inside of the routines, we can move this line insight the branch
     363        7292 :       ALLOCATE (mo_coeff_o(nspins), mo_coeff_v(nspins), mo_coeff_all(nspins), mo_coeff_gw(nspins))
     364             : 
     365             :       ! Always allocate for usage in call of replicate_mat_to_subgroup
     366        2010 :       ALLOCATE (mo_coeff_o_bse(1), mo_coeff_v_bse(1))
     367             : 
     368             :       ! for imag. time, we do not need this
     369         670 :       IF (.NOT. do_im_time) THEN
     370             : 
     371             :          ! new routine: replicate a full matrix from one para_env to a smaller one
     372             :          ! keeping the memory usage as small as possible in this case the
     373             :          ! output the two part of the C matrix (virtual, occupied)
     374        1190 :          DO ispin = 1, nspins
     375             : 
     376             :             CALL replicate_mat_to_subgroup(para_env, para_env_sub, mo_coeff(ispin), dimen, homo(ispin), mat_munu%matrix, &
     377             :                                            mo_coeff_o(ispin)%matrix, mo_coeff_v(ispin)%matrix, &
     378             :                                            mo_coeff_all(ispin)%matrix, mo_coeff_gw(ispin)%matrix, &
     379             :                                            my_do_gw, gw_corr_lev_occ(ispin), gw_corr_lev_virt(ispin), do_bse, &
     380             :                                            bse_lev_virt, mo_coeff_o_bse(1)%matrix, mo_coeff_v_bse(1)%matrix, &
     381        1190 :                                            mp2_env%mp2_gpw%eps_filter)
     382             : 
     383             :          END DO
     384             : 
     385             :       END IF
     386             : 
     387             :       ! now we're kind of ready to go....
     388         670 :       Emp2_S = 0.0_dp
     389         670 :       Emp2_T = 0.0_dp
     390         670 :       IF (my_do_ri_mp2 .OR. my_do_ri_rpa .OR. my_do_ri_sos_laplace_mp2) THEN
     391             :          ! RI-GPW integrals (same stuff for both RPA and MP2)
     392         656 :          IF (nspins == 2) THEN
     393             :             ! open shell case (RI) here the (ia|K) integrals are computed for both the alpha and beta components
     394             :             CALL mp2_ri_gpw_compute_in( &
     395             :                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, &
     396             :                para_env, para_env_sub, color_sub, cell, particle_set, &
     397             :                atomic_kind_set, qs_kind_set, fm_matrix_PQ, fm_matrix_L_kpoints, fm_matrix_Minv_L_kpoints, &
     398             :                fm_matrix_Minv, fm_matrix_Minv_Vtrunc_Minv, nmo, homo, mat_munu, sab_orb_sub, &
     399             :                mo_coeff_o, mo_coeff_v, mo_coeff_all, mo_coeff_gw, mo_coeff_o_bse, mo_coeff_v_bse, &
     400             :                mp2_env%mp2_gpw%eps_filter, unit_nr, &
     401             :                mp2_env%mp2_memory, mp2_env%calc_PQ_cond_num, calc_forces, blacs_env_sub, my_do_gw .AND. .NOT. do_im_time, &
     402             :                do_bse, gd_B_all, starts_array_mc, ends_array_mc, starts_array_mc_block, ends_array_mc_block, &
     403             :                gw_corr_lev_occ(1), gw_corr_lev_virt(1), &
     404             :                bse_lev_virt, &
     405             :                do_im_time, do_kpoints_cubic_RPA, kpoints, &
     406             :                t_3c_M, t_3c_O, t_3c_O_compressed, t_3c_O_ind, &
     407             :                mp2_env%ri_metric, &
     408         288 :                gd_B_occ_bse, gd_B_virt_bse)
     409             :          ELSE
     410             :             ! closed shell case (RI)
     411             :             CALL mp2_ri_gpw_compute_in(BIb_C, BIb_C_gw, BIb_C_bse_ij, BIb_C_bse_ab, gd_array, gd_B_virtual, &
     412             :                                        dimen_RI, dimen_RI_red, qs_env, para_env, para_env_sub, &
     413             :                                        color_sub, cell, particle_set, &
     414             :                                        atomic_kind_set, qs_kind_set, fm_matrix_PQ, &
     415             :                                        fm_matrix_L_kpoints, fm_matrix_Minv_L_kpoints, &
     416             :                                        fm_matrix_Minv, fm_matrix_Minv_Vtrunc_Minv, nmo, homo, &
     417             :                                        mat_munu, sab_orb_sub, &
     418             :                                        mo_coeff_o, mo_coeff_v, mo_coeff_all, mo_coeff_gw, mo_coeff_o_bse, mo_coeff_v_bse, &
     419             :                                        mp2_env%mp2_gpw%eps_filter, unit_nr, &
     420             :                                        mp2_env%mp2_memory, mp2_env%calc_PQ_cond_num, calc_forces, &
     421             :                                        blacs_env_sub, my_do_gw .AND. .NOT. do_im_time, do_bse, gd_B_all, &
     422             :                                        starts_array_mc, ends_array_mc, &
     423             :                                        starts_array_mc_block, ends_array_mc_block, &
     424             :                                        gw_corr_lev_occ(1), gw_corr_lev_virt(1), &
     425             :                                        bse_lev_virt, &
     426             :                                        do_im_time, do_kpoints_cubic_RPA, kpoints, &
     427             :                                        t_3c_M, t_3c_O, t_3c_O_compressed, t_3c_O_ind, &
     428         954 :                                        mp2_env%ri_metric, gd_B_occ_bse, gd_B_virt_bse)
     429             :          END IF
     430             : 
     431             :       ELSE
     432             :          ! Canonical MP2-GPW
     433          14 :          IF (nspins == 2) THEN
     434             :             ! alpha-alpha and alpha-beta components
     435           2 :             IF (unit_nr > 0) WRITE (unit_nr, *)
     436           2 :             IF (unit_nr > 0) WRITE (unit_nr, '(T3,A)') 'Alpha (ia|'
     437             :             CALL mp2_gpw_compute( &
     438             :                Emp2, Emp2_Cou, Emp2_EX, qs_env, para_env, para_env_sub, color_sub, &
     439             :                cell, particle_set, &
     440             :                atomic_kind_set, qs_kind_set, Eigenval, nmo, homo, mat_munu, &
     441             :                sab_orb_sub, mo_coeff_o, mo_coeff_v, mp2_env%mp2_gpw%eps_filter, unit_nr, &
     442           2 :                mp2_env%mp2_memory, calc_ex, blacs_env_sub, Emp2_AB)
     443             : 
     444             :             ! beta-beta component
     445           2 :             IF (unit_nr > 0) WRITE (unit_nr, *)
     446           2 :             IF (unit_nr > 0) WRITE (unit_nr, '(T3,A)') 'Beta (ia|'
     447             :             CALL mp2_gpw_compute( &
     448             :                Emp2_BB, Emp2_Cou_BB, Emp2_EX_BB, qs_env, para_env, para_env_sub, color_sub, cell, particle_set, &
     449             :                atomic_kind_set, qs_kind_set, Eigenval(:, 2:2), nmo, homo(2:2), mat_munu, &
     450             :                sab_orb_sub, mo_coeff_o(2:2), mo_coeff_v(2:2), mp2_env%mp2_gpw%eps_filter, unit_nr, &
     451           2 :                mp2_env%mp2_memory, calc_ex, blacs_env_sub)
     452             : 
     453             :             ! make order on the MP2 energy contributions
     454           2 :             Emp2_Cou = Emp2_Cou*0.25_dp
     455           2 :             Emp2_EX = Emp2_EX*0.5_dp
     456             : 
     457           2 :             Emp2_Cou_BB = Emp2_Cou_BB*0.25_dp
     458           2 :             Emp2_EX_BB = Emp2_EX_BB*0.5_dp
     459             : 
     460           2 :             Emp2_S = Emp2_AB
     461           2 :             Emp2_T = Emp2_Cou + Emp2_Cou_BB + Emp2_EX + Emp2_EX_BB
     462             : 
     463           2 :             Emp2_Cou = Emp2_Cou + Emp2_Cou_BB + Emp2_AB
     464           2 :             Emp2_EX = Emp2_EX + Emp2_EX_BB
     465           2 :             Emp2 = Emp2_EX + Emp2_Cou
     466             : 
     467             :          ELSE
     468             :             ! closed shell case
     469             :             CALL mp2_gpw_compute( &
     470             :                Emp2, Emp2_Cou, Emp2_EX, qs_env, para_env, para_env_sub, color_sub, cell, particle_set, &
     471             :                atomic_kind_set, qs_kind_set, Eigenval(:, 1:1), nmo, homo(1:1), mat_munu, &
     472             :                sab_orb_sub, mo_coeff_o(1:1), mo_coeff_v(1:1), mp2_env%mp2_gpw%eps_filter, unit_nr, &
     473          12 :                mp2_env%mp2_memory, calc_ex, blacs_env_sub)
     474             :          END IF
     475             :       END IF
     476             : 
     477             :       ! Free possibly large buffers allocated by dbcsr on the GPU,
     478             :       ! large hybrid dgemm/pdgemm's coming later will need the space.
     479         670 :       CALL dbcsr_clear_mempools()
     480             : 
     481         670 :       IF (calc_forces .AND. .NOT. do_im_time) THEN
     482             :          ! make a copy of mo_coeff_o and mo_coeff_v
     483        1492 :          ALLOCATE (mp2_env%ri_grad%mo_coeff_o(nspins), mp2_env%ri_grad%mo_coeff_v(nspins))
     484         614 :          DO ispin = 1, nspins
     485         350 :             NULLIFY (mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     486         350 :             CALL dbcsr_init_p(mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     487             :             CALL dbcsr_copy(mp2_env%ri_grad%mo_coeff_o(ispin)%matrix, mo_coeff_o(ispin)%matrix, &
     488         350 :                             name="mo_coeff_o"//cp_to_string(ispin))
     489         350 :             NULLIFY (mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     490         350 :             CALL dbcsr_init_p(mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     491             :             CALL dbcsr_copy(mp2_env%ri_grad%mo_coeff_v(ispin)%matrix, mo_coeff_v(ispin)%matrix, &
     492         614 :                             name="mo_coeff_v"//cp_to_string(ispin))
     493             :          END DO
     494         264 :          CALL get_group_dist(gd_array, color_sub, my_group_L_start, my_group_L_end, my_group_L_size)
     495             :       END IF
     496             :       ! Copy mo coeffs for RPA exchange correction
     497         670 :       IF (mp2_env%ri_rpa%exchange_correction /= rpa_exchange_none) THEN
     498          76 :          ALLOCATE (mp2_env%ri_rpa%mo_coeff_o(nspins), mp2_env%ri_rpa%mo_coeff_v(nspins))
     499          26 :          DO ispin = 1, nspins
     500          14 :             CALL dbcsr_copy(mp2_env%ri_rpa%mo_coeff_o(ispin), mo_coeff_o(ispin)%matrix, name="mo_coeff_o")
     501          26 :             CALL dbcsr_copy(mp2_env%ri_rpa%mo_coeff_v(ispin), mo_coeff_v(ispin)%matrix, name="mo_coeff_v")
     502             :          END DO
     503             :       END IF
     504             : 
     505         670 :       IF (.NOT. do_im_time) THEN
     506             : 
     507        1190 :          DO ispin = 1, nspins
     508         654 :             CALL dbcsr_release(mo_coeff_o(ispin)%matrix)
     509         654 :             DEALLOCATE (mo_coeff_o(ispin)%matrix)
     510         654 :             CALL dbcsr_release(mo_coeff_v(ispin)%matrix)
     511         654 :             DEALLOCATE (mo_coeff_v(ispin)%matrix)
     512        1190 :             IF (my_do_gw) THEN
     513          74 :                CALL dbcsr_release(mo_coeff_all(ispin)%matrix)
     514          74 :                DEALLOCATE (mo_coeff_all(ispin)%matrix)
     515             :             END IF
     516             :          END DO
     517         536 :          DEALLOCATE (mo_coeff_o, mo_coeff_v)
     518         536 :          IF (my_do_gw) DEALLOCATE (mo_coeff_all)
     519             : 
     520             :       END IF
     521         670 :       IF (do_bse) THEN
     522          42 :          CALL dbcsr_release(mo_coeff_o_bse(1)%matrix)
     523          42 :          CALL dbcsr_release(mo_coeff_v_bse(1)%matrix)
     524          42 :          DEALLOCATE (mo_coeff_o_bse(1)%matrix)
     525          42 :          DEALLOCATE (mo_coeff_v_bse(1)%matrix)
     526             :       END IF
     527         670 :       DEALLOCATE (mo_coeff_o_bse, mo_coeff_v_bse)
     528             : 
     529             :       ! Release some memory for RPA exchange correction
     530         670 :       IF (calc_forces .AND. do_im_time .OR. &
     531             :           (.NOT. calc_forces .AND. mp2_env%ri_rpa%exchange_correction == rpa_exchange_none)) THEN
     532             : 
     533         394 :          CALL dbcsr_release(mat_munu%matrix)
     534         394 :          DEALLOCATE (mat_munu%matrix)
     535             : 
     536         394 :          CALL release_neighbor_list_sets(sab_orb_sub)
     537             : 
     538             :       END IF
     539             : 
     540             :       ! decide if to do RI-RPA or RI-MP2
     541         670 :       IF (my_do_ri_rpa .OR. my_do_ri_sos_laplace_mp2) THEN
     542             : 
     543         306 :          IF (do_im_time) CALL create_matrix_P(mat_P_global, qs_env, mp2_env, para_env)
     544             : 
     545         738 :          IF (.NOT. ALLOCATED(BIb_C)) ALLOCATE (BIb_C(nspins))
     546        1068 :          IF (.NOT. ALLOCATED(BIb_C_gw)) ALLOCATE (BIb_C_gw(nspins))
     547         738 :          IF (.NOT. ALLOCATED(gd_B_virtual)) ALLOCATE (gd_B_virtual(nspins))
     548             : 
     549             :          ! RI-RPA
     550             :          CALL rpa_ri_compute_en(qs_env, Emp2, mp2_env, BIb_C, BIb_C_gw, BIb_C_bse_ij, BIb_C_bse_ab, &
     551             :                                 para_env, para_env_sub, color_sub, &
     552             :                                 gd_array, gd_B_virtual, gd_B_all, gd_B_occ_bse, gd_B_virt_bse, &
     553             :                                 mo_coeff, fm_matrix_PQ, fm_matrix_L_kpoints, fm_matrix_Minv_L_kpoints, &
     554             :                                 fm_matrix_Minv, fm_matrix_Minv_Vtrunc_Minv, kpoints, &
     555             :                                 Eigenval, nmo, homo, dimen_RI, dimen_RI_red, gw_corr_lev_occ, gw_corr_lev_virt, &
     556             :                                 bse_lev_virt, &
     557             :                                 unit_nr, my_do_ri_sos_laplace_mp2, my_do_gw, do_im_time, do_bse, matrix_s, &
     558             :                                 mat_munu, mat_P_global, t_3c_M, t_3c_O, t_3c_O_compressed, t_3c_O_ind, &
     559             :                                 starts_array_mc, ends_array_mc, &
     560         306 :                                 starts_array_mc_block, ends_array_mc_block, calc_forces)
     561             : 
     562         306 :          IF (mp2_env%ri_rpa%do_rse) &
     563           4 :             CALL rse_energy(qs_env, mp2_env, para_env, dft_control, mo_coeff, nmo, homo, Eigenval)
     564             : 
     565         306 :          IF (do_im_time) THEN
     566         134 :             IF (ASSOCIATED(mat_P_global%matrix)) THEN
     567         134 :                CALL dbcsr_release(mat_P_global%matrix)
     568         134 :                DEALLOCATE (mat_P_global%matrix)
     569             :             END IF
     570             : 
     571         134 :             CALL cp_libint_static_cleanup()
     572         134 :             IF (calc_forces) CALL cp_fm_release(fm_matrix_PQ)
     573             :          END IF
     574             : 
     575             :          ! Release some memory for RPA exchange correction
     576         306 :          IF (mp2_env%ri_rpa%exchange_correction /= rpa_exchange_none) THEN
     577             : 
     578          12 :             CALL dbcsr_release(mat_munu%matrix)
     579          12 :             DEALLOCATE (mat_munu%matrix)
     580             : 
     581          12 :             CALL release_neighbor_list_sets(sab_orb_sub)
     582             : 
     583             :          END IF
     584             : 
     585             :       ELSE
     586         364 :          IF (my_do_ri_mp2) THEN
     587         350 :             Emp2 = 0.0_dp
     588         350 :             Emp2_Cou = 0.0_dp
     589         350 :             Emp2_EX = 0.0_dp
     590             : 
     591             :             ! RI-MP2-GPW compute energy
     592             :             CALL mp2_ri_gpw_compute_en( &
     593             :                Emp2_Cou, Emp2_EX, Emp2_S, Emp2_T, BIb_C, mp2_env, para_env, para_env_sub, color_sub, &
     594             :                gd_array, gd_B_virtual, &
     595         350 :                Eigenval, nmo, homo, dimen_RI_red, unit_nr, calc_forces, calc_ex)
     596             : 
     597             :          END IF
     598             :       END IF
     599             : 
     600             :       ! if we need forces time to calculate the MP2 non-separable contribution
     601             :       ! and start computing the Lagrangian
     602         670 :       IF (calc_forces .AND. .NOT. do_im_time) THEN
     603             : 
     604             :          CALL calc_ri_mp2_nonsep(qs_env, mp2_env, para_env, para_env_sub, cell, &
     605             :                                  particle_set, atomic_kind_set, qs_kind_set, &
     606             :                                  mo_coeff, nmo, homo, dimen_RI, Eigenval, &
     607             :                                  my_group_L_start, my_group_L_end, my_group_L_size, &
     608         264 :                                  sab_orb_sub, mat_munu, blacs_env_sub)
     609             : 
     610         614 :          DO ispin = 1, nspins
     611         350 :             CALL dbcsr_release(mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     612         350 :             DEALLOCATE (mp2_env%ri_grad%mo_coeff_o(ispin)%matrix)
     613             : 
     614         350 :             CALL dbcsr_release(mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     615         614 :             DEALLOCATE (mp2_env%ri_grad%mo_coeff_v(ispin)%matrix)
     616             :          END DO
     617         264 :          DEALLOCATE (mp2_env%ri_grad%mo_coeff_o, mp2_env%ri_grad%mo_coeff_v)
     618             : 
     619         264 :          CALL dbcsr_release(mat_munu%matrix)
     620         264 :          DEALLOCATE (mat_munu%matrix)
     621             : 
     622         264 :          CALL release_neighbor_list_sets(sab_orb_sub)
     623             : 
     624             :       END IF
     625             : 
     626             :       !XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx
     627             :       ! moved from above
     628         670 :       IF (my_do_gw .AND. .NOT. do_im_time) THEN
     629         144 :          DO ispin = 1, nspins
     630          74 :             CALL dbcsr_release(mo_coeff_gw(ispin)%matrix)
     631         144 :             DEALLOCATE (mo_coeff_gw(ispin)%matrix)
     632             :          END DO
     633          70 :          DEALLOCATE (mo_coeff_gw)
     634             :       END IF
     635             : 
     636             :       ! re-init the radii to be able to generate pair lists with MP2-appropriate screening
     637         670 :       dft_control%qs_control%eps_pgf_orb = eps_pgf_orb_old
     638         670 :       dft_control%qs_control%eps_rho_rspace = eps_rho_rspace_old
     639         670 :       dft_control%qs_control%eps_gvg_rspace = eps_gvg_rspace_old
     640         670 :       CALL init_interaction_radii(dft_control%qs_control, qs_kind_set)
     641             : 
     642         670 :       CALL cp_blacs_env_release(blacs_env_sub)
     643             : 
     644         670 :       IF (.NOT. (mp2_env%ri_g0w0%print_local_bandgap .OR. mp2_env%bse%do_nto_analysis)) THEN
     645         660 :          CALL cp_rm_default_logger()
     646         660 :          CALL cp_logger_release(logger_sub)
     647             :       END IF
     648             : 
     649         670 :       CALL mp_para_env_release(para_env_sub)
     650             : 
     651             :       ! finally solve the z-vector equation if forces are required
     652         670 :       IF (calc_forces .AND. .NOT. do_im_time) THEN
     653             :          CALL solve_z_vector_eq(qs_env, mp2_env, para_env, dft_control, &
     654         264 :                                 mo_coeff, nmo, homo, Eigenval, unit_nr)
     655             :       END IF
     656             : 
     657         670 :       DEALLOCATE (Eigenval, mo_coeff)
     658             : 
     659         670 :       CALL timestop(handle)
     660             : 
     661        5318 :    END SUBROUTINE mp2_gpw_main
     662             : 
     663             : ! **************************************************************************************************
     664             : !> \brief ...
     665             : !> \param para_env ...
     666             : !> \param para_env_sub ...
     667             : !> \param mo_coeff ...
     668             : !> \param dimen ...
     669             : !> \param homo ...
     670             : !> \param mat_munu ...
     671             : !> \param mo_coeff_o ...
     672             : !> \param mo_coeff_v ...
     673             : !> \param mo_coeff_all ...
     674             : !> \param mo_coeff_gw ...
     675             : !> \param my_do_gw ...
     676             : !> \param gw_corr_lev_occ ...
     677             : !> \param gw_corr_lev_virt ...
     678             : !> \param my_do_bse ...
     679             : !> \param bse_lev_virt ...
     680             : !> \param mo_coeff_o_bse ...
     681             : !> \param mo_coeff_v_bse ...
     682             : !> \param eps_filter ...
     683             : ! **************************************************************************************************
     684         654 :    SUBROUTINE replicate_mat_to_subgroup(para_env, para_env_sub, mo_coeff, dimen, homo, mat_munu, &
     685             :                                         mo_coeff_o, mo_coeff_v, mo_coeff_all, mo_coeff_gw, my_do_gw, &
     686             :                                         gw_corr_lev_occ, gw_corr_lev_virt, my_do_bse, &
     687             :                                         bse_lev_virt, mo_coeff_o_bse, mo_coeff_v_bse, eps_filter)
     688             :       TYPE(mp_para_env_type), INTENT(IN)                 :: para_env, para_env_sub
     689             :       TYPE(cp_fm_type), INTENT(IN)                       :: mo_coeff
     690             :       INTEGER, INTENT(IN)                                :: dimen, homo
     691             :       TYPE(dbcsr_type), INTENT(INOUT)                    :: mat_munu
     692             :       TYPE(dbcsr_type), POINTER                          :: mo_coeff_o, mo_coeff_v, mo_coeff_all, &
     693             :                                                             mo_coeff_gw
     694             :       LOGICAL, INTENT(IN)                                :: my_do_gw
     695             :       INTEGER, INTENT(IN)                                :: gw_corr_lev_occ, gw_corr_lev_virt
     696             :       LOGICAL, INTENT(IN)                                :: my_do_bse
     697             :       INTEGER, INTENT(IN)                                :: bse_lev_virt
     698             :       TYPE(dbcsr_type), POINTER                          :: mo_coeff_o_bse, mo_coeff_v_bse
     699             :       REAL(KIND=dp), INTENT(IN)                          :: eps_filter
     700             : 
     701             :       CHARACTER(LEN=*), PARAMETER :: routineN = 'replicate_mat_to_subgroup'
     702             : 
     703             :       INTEGER                                            :: handle
     704         654 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: C
     705         654 :       TYPE(group_dist_d1_type)                           :: gd_array
     706             : 
     707         654 :       CALL timeset(routineN, handle)
     708             : 
     709             :       CALL grep_rows_in_subgroups(para_env, para_env_sub, mo_coeff, gd_array, C)
     710             : 
     711             :       ! create and fill mo_coeff_o, mo_coeff_v and mo_coeff_all
     712         654 :       ALLOCATE (mo_coeff_o)
     713             :       CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_o, C(:, 1:homo), &
     714         654 :                                  mat_munu, gd_array, eps_filter)
     715             : 
     716         654 :       ALLOCATE (mo_coeff_v)
     717             :       CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_v, C(:, homo + 1:dimen), &
     718         654 :                                  mat_munu, gd_array, eps_filter)
     719             : 
     720         654 :       IF (my_do_gw) THEN
     721          74 :          ALLOCATE (mo_coeff_gw)
     722             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_gw, C(:, homo - gw_corr_lev_occ + 1:homo + gw_corr_lev_virt), &
     723          74 :                                     mat_munu, gd_array, eps_filter)
     724             : 
     725             :          ! all levels
     726          74 :          ALLOCATE (mo_coeff_all)
     727             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_all, C, &
     728          74 :                                     mat_munu, gd_array, eps_filter)
     729             : 
     730             :       END IF
     731             : 
     732         654 :       IF (my_do_bse) THEN
     733             : 
     734          42 :          ALLOCATE (mo_coeff_o_bse)
     735             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_o_bse, C(:, 1:homo), &
     736          42 :                                     mat_munu, gd_array, eps_filter)
     737             : 
     738          42 :          ALLOCATE (mo_coeff_v_bse)
     739             :          CALL build_dbcsr_from_rows(para_env_sub, mo_coeff_v_bse, C(:, homo + 1:homo + bse_lev_virt), &
     740          42 :                                     mat_munu, gd_array, eps_filter)
     741             : 
     742             :       END IF
     743         654 :       DEALLOCATE (C)
     744         654 :       CALL release_group_dist(gd_array)
     745             : 
     746         654 :       CALL timestop(handle)
     747             : 
     748         654 :    END SUBROUTINE replicate_mat_to_subgroup
     749             : 
     750             : ! **************************************************************************************************
     751             : !> \brief ...
     752             : !> \param para_env ...
     753             : !> \param para_env_sub ...
     754             : !> \param mo_coeff ...
     755             : !> \param gd_array ...
     756             : !> \param C ...
     757             : ! **************************************************************************************************
     758         678 :    SUBROUTINE grep_rows_in_subgroups(para_env, para_env_sub, mo_coeff, gd_array, C)
     759             :       TYPE(mp_para_env_type), INTENT(IN)                 :: para_env, para_env_sub
     760             :       TYPE(cp_fm_type), INTENT(IN)                       :: mo_coeff
     761             :       TYPE(group_dist_d1_type), INTENT(OUT)              :: gd_array
     762             :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :), &
     763             :          INTENT(OUT)                                     :: C
     764             : 
     765             :       CHARACTER(LEN=*), PARAMETER :: routineN = 'grep_rows_in_subgroups'
     766             : 
     767             :       INTEGER :: handle, i_global, iiB, j_global, jjB, max_row_col_local, my_mu_end, my_mu_size, &
     768             :          my_mu_start, ncol_global, ncol_local, ncol_rec, nrow_global, nrow_local, nrow_rec, &
     769             :          proc_receive_static, proc_send_static, proc_shift
     770         678 :       INTEGER, ALLOCATABLE, DIMENSION(:, :)              :: local_col_row_info, rec_col_row_info
     771         678 :       INTEGER, DIMENSION(:), POINTER                     :: col_indices, col_indices_rec, &
     772         678 :                                                             row_indices, row_indices_rec
     773         678 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: local_C, rec_C
     774             :       REAL(KIND=dp), CONTIGUOUS, DIMENSION(:, :), &
     775         678 :          POINTER                                         :: local_C_internal
     776             : 
     777         678 :       CALL timeset(routineN, handle)
     778             : 
     779             :       CALL cp_fm_get_info(matrix=mo_coeff, &
     780             :                           ncol_global=ncol_global, &
     781             :                           nrow_global=nrow_global, &
     782             :                           nrow_local=nrow_local, &
     783             :                           ncol_local=ncol_local, &
     784             :                           row_indices=row_indices, &
     785             :                           col_indices=col_indices, &
     786         678 :                           local_data=local_C_internal)
     787             : 
     788         678 :       CALL create_group_dist(gd_array, para_env_sub%num_pe, nrow_global)
     789         678 :       CALL get_group_dist(gd_array, para_env_sub%mepos, my_mu_start, my_mu_end, my_mu_size)
     790             : 
     791             :       ! local storage for the C matrix
     792        2712 :       ALLOCATE (C(my_mu_size, ncol_global))
     793      282224 :       C = 0.0_dp
     794             : 
     795        2700 :       ALLOCATE (local_C(nrow_local, ncol_local))
     796      151820 :       local_C(:, :) = local_C_internal(1:nrow_local, 1:ncol_local)
     797         678 :       NULLIFY (local_C_internal)
     798             : 
     799         678 :       max_row_col_local = MAX(nrow_local, ncol_local)
     800         678 :       CALL para_env%max(max_row_col_local)
     801             : 
     802        2712 :       ALLOCATE (local_col_row_info(0:max_row_col_local, 2))
     803       28350 :       local_col_row_info = 0
     804             :       ! 0,1 nrows
     805         678 :       local_col_row_info(0, 1) = nrow_local
     806        6918 :       local_col_row_info(1:nrow_local, 1) = row_indices(1:nrow_local)
     807             :       ! 0,2 ncols
     808         678 :       local_col_row_info(0, 2) = ncol_local
     809       13110 :       local_col_row_info(1:ncol_local, 2) = col_indices(1:ncol_local)
     810             : 
     811        1356 :       ALLOCATE (rec_col_row_info(0:max_row_col_local, 2))
     812             : 
     813             :       ! accumulate data on C buffer starting from myself
     814        6918 :       DO iiB = 1, nrow_local
     815        6240 :          i_global = row_indices(iiB)
     816        6918 :          IF (i_global >= my_mu_start .AND. i_global <= my_mu_end) THEN
     817      141728 :             DO jjB = 1, ncol_local
     818      135640 :                j_global = col_indices(jjB)
     819      141728 :                C(i_global - my_mu_start + 1, j_global) = local_C(iiB, jjB)
     820             :             END DO
     821             :          END IF
     822             :       END DO
     823             : 
     824             :       ! start ring communication for collecting the data from the other
     825         678 :       proc_send_static = MODULO(para_env%mepos + 1, para_env%num_pe)
     826         678 :       proc_receive_static = MODULO(para_env%mepos - 1, para_env%num_pe)
     827        1356 :       DO proc_shift = 1, para_env%num_pe - 1
     828             :          ! first exchange information on the local data
     829       28350 :          rec_col_row_info = 0
     830         678 :          CALL para_env%sendrecv(local_col_row_info, proc_send_static, rec_col_row_info, proc_receive_static)
     831         678 :          nrow_rec = rec_col_row_info(0, 1)
     832         678 :          ncol_rec = rec_col_row_info(0, 2)
     833             : 
     834        2022 :          ALLOCATE (row_indices_rec(nrow_rec))
     835        6918 :          row_indices_rec = rec_col_row_info(1:nrow_rec, 1)
     836             : 
     837        2034 :          ALLOCATE (col_indices_rec(ncol_rec))
     838       13110 :          col_indices_rec = rec_col_row_info(1:ncol_rec, 2)
     839             : 
     840        2700 :          ALLOCATE (rec_C(nrow_rec, ncol_rec))
     841      151820 :          rec_C = 0.0_dp
     842             : 
     843             :          ! then send and receive the real data
     844         678 :          CALL para_env%sendrecv(local_C, proc_send_static, rec_C, proc_receive_static)
     845             : 
     846             :          ! accumulate the received data on C buffer
     847        6918 :          DO iiB = 1, nrow_rec
     848        6240 :             i_global = row_indices_rec(iiB)
     849        6918 :             IF (i_global >= my_mu_start .AND. i_global <= my_mu_end) THEN
     850      139480 :                DO jjB = 1, ncol_rec
     851      133474 :                   j_global = col_indices_rec(jjB)
     852      139480 :                   C(i_global - my_mu_start + 1, j_global) = rec_C(iiB, jjB)
     853             :                END DO
     854             :             END IF
     855             :          END DO
     856             : 
     857       28350 :          local_col_row_info(:, :) = rec_col_row_info
     858         678 :          DEALLOCATE (local_C)
     859        2022 :          ALLOCATE (local_C(nrow_rec, ncol_rec))
     860      151820 :          local_C(:, :) = rec_C
     861             : 
     862         678 :          DEALLOCATE (col_indices_rec)
     863         678 :          DEALLOCATE (row_indices_rec)
     864        1356 :          DEALLOCATE (rec_C)
     865             :       END DO
     866             : 
     867         678 :       DEALLOCATE (local_C)
     868         678 :       DEALLOCATE (local_col_row_info)
     869         678 :       DEALLOCATE (rec_col_row_info)
     870             : 
     871         678 :       CALL timestop(handle)
     872             : 
     873        2712 :    END SUBROUTINE grep_rows_in_subgroups
     874             : 
     875             : ! **************************************************************************************************
     876             : !> \brief Encapsulate the building of dbcsr_matrices mo_coeff_(v,o,all)
     877             : !> \param para_env_sub ...
     878             : !> \param mo_coeff_to_build ...
     879             : !> \param Cread ...
     880             : !> \param mat_munu ...
     881             : !> \param gd_array ...
     882             : !> \param eps_filter ...
     883             : !> \author Jan Wilhelm, Code by Mauro Del Ben
     884             : ! **************************************************************************************************
     885        1564 :    SUBROUTINE build_dbcsr_from_rows(para_env_sub, mo_coeff_to_build, Cread, &
     886             :                                     mat_munu, gd_array, eps_filter)
     887             :       TYPE(mp_para_env_type), INTENT(IN)                 :: para_env_sub
     888             :       TYPE(dbcsr_type)                                   :: mo_coeff_to_build
     889             :       REAL(KIND=dp), DIMENSION(:, :), INTENT(IN)         :: Cread
     890             :       TYPE(dbcsr_type), INTENT(INOUT)                    :: mat_munu
     891             :       TYPE(group_dist_d1_type), INTENT(IN)               :: gd_array
     892             :       REAL(KIND=dp), INTENT(IN)                          :: eps_filter
     893             : 
     894             :       CHARACTER(LEN=*), PARAMETER :: routineN = 'build_dbcsr_from_rows'
     895             : 
     896             :       INTEGER :: blk, col, col_offset, col_size, handle, i, i_global, j, j_global, my_mu_end, &
     897             :          my_mu_start, ncol_global, proc_receive, proc_send, proc_shift, rec_mu_end, rec_mu_size, &
     898             :          rec_mu_start, row, row_offset, row_size
     899        1564 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: rec_C
     900        1564 :       REAL(KIND=dp), DIMENSION(:, :), POINTER            :: data_block
     901             :       TYPE(dbcsr_iterator_type)                          :: iter
     902             : 
     903        1564 :       CALL timeset(routineN, handle)
     904             : 
     905        1564 :       ncol_global = SIZE(Cread, 2)
     906             : 
     907        1564 :       CALL get_group_dist(gd_array, para_env_sub%mepos, my_mu_start, my_mu_end)
     908             : 
     909             :       CALL cp_dbcsr_m_by_n_from_row_template(mo_coeff_to_build, template=mat_munu, n=ncol_global, &
     910        1564 :                                              sym=dbcsr_type_no_symmetry, data_type=dbcsr_type_real_default)
     911        1564 :       CALL dbcsr_reserve_all_blocks(mo_coeff_to_build)
     912             : 
     913             :       ! accumulate data on mo_coeff_to_build starting from myself
     914        1564 :       CALL dbcsr_iterator_start(iter, mo_coeff_to_build)
     915        6032 :       DO WHILE (dbcsr_iterator_blocks_left(iter))
     916             :          CALL dbcsr_iterator_next_block(iter, row, col, data_block, blk, &
     917             :                                         row_size=row_size, col_size=col_size, &
     918        4468 :                                         row_offset=row_offset, col_offset=col_offset)
     919       35748 :          DO i = 1, row_size
     920       29716 :             i_global = row_offset + i - 1
     921       34184 :             IF (i_global >= my_mu_start .AND. i_global <= my_mu_end) THEN
     922      377890 :                DO j = 1, col_size
     923      348350 :                   j_global = col_offset + j - 1
     924      377890 :                   data_block(i, j) = Cread(i_global - my_mu_start + 1, col_offset + j - 1)
     925             :                END DO
     926             :             END IF
     927             :          END DO
     928             :       END DO
     929        1564 :       CALL dbcsr_iterator_stop(iter)
     930             : 
     931             :       ! start ring communication in the subgroup for collecting the data from the other
     932             :       ! proc (occupied)
     933        1644 :       DO proc_shift = 1, para_env_sub%num_pe - 1
     934          80 :          proc_send = MODULO(para_env_sub%mepos + proc_shift, para_env_sub%num_pe)
     935          80 :          proc_receive = MODULO(para_env_sub%mepos - proc_shift, para_env_sub%num_pe)
     936             : 
     937          80 :          CALL get_group_dist(gd_array, proc_receive, rec_mu_start, rec_mu_end, rec_mu_size)
     938             : 
     939         320 :          ALLOCATE (rec_C(rec_mu_size, ncol_global))
     940        9110 :          rec_C = 0.0_dp
     941             : 
     942             :          ! then send and receive the real data
     943        9110 :          CALL para_env_sub%sendrecv(Cread, proc_send, rec_C, proc_receive)
     944             : 
     945             :          ! accumulate data on mo_coeff_to_build the data received from proc_rec
     946          80 :          CALL dbcsr_iterator_start(iter, mo_coeff_to_build)
     947         188 :          DO WHILE (dbcsr_iterator_blocks_left(iter))
     948             :             CALL dbcsr_iterator_next_block(iter, row, col, data_block, blk, &
     949             :                                            row_size=row_size, col_size=col_size, &
     950         108 :                                            row_offset=row_offset, col_offset=col_offset)
     951         912 :             DO i = 1, row_size
     952         724 :                i_global = row_offset + i - 1
     953         832 :                IF (i_global >= rec_mu_start .AND. i_global <= rec_mu_end) THEN
     954        1910 :                   DO j = 1, col_size
     955        1734 :                      j_global = col_offset + j - 1
     956        1910 :                      data_block(i, j) = rec_C(i_global - rec_mu_start + 1, col_offset + j - 1)
     957             :                   END DO
     958             :                END IF
     959             :             END DO
     960             :          END DO
     961          80 :          CALL dbcsr_iterator_stop(iter)
     962             : 
     963        1804 :          DEALLOCATE (rec_C)
     964             : 
     965             :       END DO
     966        1564 :       CALL dbcsr_filter(mo_coeff_to_build, eps_filter)
     967             : 
     968        1564 :       CALL timestop(handle)
     969             : 
     970        3128 :    END SUBROUTINE build_dbcsr_from_rows
     971             : 
     972             : ! **************************************************************************************************
     973             : !> \brief Encapsulate the building of dbcsr_matrix mat_munu
     974             : !> \param mat_munu ...
     975             : !> \param qs_env ...
     976             : !> \param eps_grid ...
     977             : !> \param blacs_env_sub ...
     978             : !> \param do_ri_aux_basis ...
     979             : !> \param do_mixed_basis ...
     980             : !> \param group_size_prim ...
     981             : !> \param do_alloc_blocks_from_nbl ...
     982             : !> \param do_kpoints ...
     983             : !> \param sab_orb_sub ...
     984             : !> \param dbcsr_sym_type ...
     985             : !> \author Jan Wilhelm, code by Mauro Del Ben
     986             : ! **************************************************************************************************
     987         930 :    SUBROUTINE create_mat_munu(mat_munu, qs_env, eps_grid, blacs_env_sub, &
     988             :                               do_ri_aux_basis, do_mixed_basis, group_size_prim, &
     989             :                               do_alloc_blocks_from_nbl, do_kpoints, sab_orb_sub, dbcsr_sym_type)
     990             : 
     991             :       TYPE(dbcsr_p_type), INTENT(OUT)                    :: mat_munu
     992             :       TYPE(qs_environment_type), POINTER                 :: qs_env
     993             :       REAL(KIND=dp)                                      :: eps_grid
     994             :       TYPE(cp_blacs_env_type), POINTER                   :: blacs_env_sub
     995             :       LOGICAL, INTENT(IN), OPTIONAL                      :: do_ri_aux_basis, do_mixed_basis
     996             :       INTEGER, INTENT(IN), OPTIONAL                      :: group_size_prim
     997             :       LOGICAL, INTENT(IN), OPTIONAL                      :: do_alloc_blocks_from_nbl, do_kpoints
     998             :       TYPE(neighbor_list_set_p_type), DIMENSION(:), &
     999             :          OPTIONAL, POINTER                               :: sab_orb_sub
    1000             :       CHARACTER, OPTIONAL                                :: dbcsr_sym_type
    1001             : 
    1002             :       CHARACTER(LEN=*), PARAMETER                        :: routineN = 'create_mat_munu'
    1003             : 
    1004             :       CHARACTER                                          :: my_dbcsr_sym_type
    1005             :       INTEGER                                            :: handle, ikind, natom, nkind
    1006         930 :       INTEGER, DIMENSION(:), POINTER                     :: col_blk_sizes, row_blk_sizes
    1007             :       LOGICAL                                            :: my_do_alloc_blocks_from_nbl, &
    1008             :                                                             my_do_kpoints, my_do_mixed_basis, &
    1009             :                                                             my_do_ri_aux_basis
    1010         930 :       LOGICAL, ALLOCATABLE, DIMENSION(:)                 :: orb_present
    1011         930 :       REAL(dp), ALLOCATABLE, DIMENSION(:)                :: orb_radius
    1012         930 :       REAL(dp), ALLOCATABLE, DIMENSION(:, :)             :: pair_radius
    1013             :       REAL(KIND=dp)                                      :: subcells
    1014         930 :       TYPE(atomic_kind_type), DIMENSION(:), POINTER      :: atomic_kind_set
    1015             :       TYPE(cell_type), POINTER                           :: cell
    1016             :       TYPE(dbcsr_distribution_type), POINTER             :: dbcsr_dist_sub
    1017             :       TYPE(dft_control_type), POINTER                    :: dft_control
    1018             :       TYPE(distribution_1d_type), POINTER                :: local_molecules_sub, local_particles_sub
    1019             :       TYPE(distribution_2d_type), POINTER                :: distribution_2d_sub
    1020         930 :       TYPE(gto_basis_set_p_type), DIMENSION(:), POINTER  :: basis_set_ri_aux
    1021             :       TYPE(gto_basis_set_type), POINTER                  :: orb_basis_set
    1022         930 :       TYPE(local_atoms_type), ALLOCATABLE, DIMENSION(:)  :: atom2d
    1023         930 :       TYPE(molecule_kind_type), DIMENSION(:), POINTER    :: molecule_kind_set
    1024         930 :       TYPE(molecule_type), DIMENSION(:), POINTER         :: molecule_set
    1025             :       TYPE(neighbor_list_set_p_type), DIMENSION(:), &
    1026         930 :          POINTER                                         :: my_sab_orb_sub
    1027         930 :       TYPE(particle_type), DIMENSION(:), POINTER         :: particle_set
    1028         930 :       TYPE(qs_kind_type), DIMENSION(:), POINTER          :: qs_kind_set
    1029             : 
    1030         930 :       CALL timeset(routineN, handle)
    1031             : 
    1032         930 :       NULLIFY (basis_set_ri_aux)
    1033             : 
    1034         930 :       my_do_ri_aux_basis = .FALSE.
    1035         930 :       IF (PRESENT(do_ri_aux_basis)) THEN
    1036         236 :          my_do_ri_aux_basis = do_ri_aux_basis
    1037             :       END IF
    1038             : 
    1039         930 :       my_do_mixed_basis = .FALSE.
    1040         930 :       IF (PRESENT(do_mixed_basis)) THEN
    1041           0 :          my_do_mixed_basis = do_mixed_basis
    1042             :       END IF
    1043             : 
    1044         930 :       my_do_alloc_blocks_from_nbl = .FALSE.
    1045         930 :       IF (PRESENT(do_alloc_blocks_from_nbl)) THEN
    1046         694 :          my_do_alloc_blocks_from_nbl = do_alloc_blocks_from_nbl
    1047             :       END IF
    1048             : 
    1049         930 :       my_do_kpoints = .FALSE.
    1050         930 :       IF (PRESENT(do_kpoints)) THEN
    1051         804 :          my_do_kpoints = do_kpoints
    1052             :       END IF
    1053             : 
    1054         930 :       my_dbcsr_sym_type = dbcsr_type_no_symmetry
    1055         930 :       IF (PRESENT(dbcsr_sym_type)) THEN
    1056         694 :          my_dbcsr_sym_type = dbcsr_sym_type
    1057             :       END IF
    1058             : 
    1059             :       CALL get_qs_env(qs_env, &
    1060             :                       qs_kind_set=qs_kind_set, &
    1061             :                       cell=cell, &
    1062             :                       particle_set=particle_set, &
    1063             :                       atomic_kind_set=atomic_kind_set, &
    1064             :                       molecule_set=molecule_set, &
    1065             :                       molecule_kind_set=molecule_kind_set, &
    1066         930 :                       dft_control=dft_control)
    1067             : 
    1068         930 :       IF (my_do_kpoints) THEN
    1069             :          ! please choose EPS_PGF_ORB in QS section smaller than EPS_GRID in WFC_GPW section
    1070           8 :          IF (eps_grid < dft_control%qs_control%eps_pgf_orb) THEN
    1071           0 :             eps_grid = dft_control%qs_control%eps_pgf_orb
    1072           0 :             CPWARN("WFC_GPW%EPS_GRID has been set to QS%EPS_PGF_ORB")
    1073             :          END IF
    1074             :       END IF
    1075             : 
    1076             :       ! hack hack hack XXXXXXXXXXXXXXX ... to be fixed
    1077         930 :       dft_control%qs_control%eps_pgf_orb = eps_grid
    1078         930 :       dft_control%qs_control%eps_rho_rspace = eps_grid
    1079         930 :       dft_control%qs_control%eps_gvg_rspace = eps_grid
    1080         930 :       CALL init_interaction_radii(dft_control%qs_control, qs_kind_set)
    1081             : 
    1082             :       ! get a distribution_1d
    1083         930 :       NULLIFY (local_particles_sub, local_molecules_sub)
    1084             :       CALL distribute_molecules_1d(atomic_kind_set=atomic_kind_set, &
    1085             :                                    particle_set=particle_set, &
    1086             :                                    local_particles=local_particles_sub, &
    1087             :                                    molecule_kind_set=molecule_kind_set, &
    1088             :                                    molecule_set=molecule_set, &
    1089             :                                    local_molecules=local_molecules_sub, &
    1090         930 :                                    force_env_section=qs_env%input)
    1091             : 
    1092             :       ! get a distribution_2d
    1093         930 :       NULLIFY (distribution_2d_sub)
    1094             :       CALL distribute_molecules_2d(cell=cell, &
    1095             :                                    atomic_kind_set=atomic_kind_set, &
    1096             :                                    qs_kind_set=qs_kind_set, &
    1097             :                                    particle_set=particle_set, &
    1098             :                                    molecule_kind_set=molecule_kind_set, &
    1099             :                                    molecule_set=molecule_set, &
    1100             :                                    distribution_2d=distribution_2d_sub, &
    1101             :                                    blacs_env=blacs_env_sub, &
    1102         930 :                                    force_env_section=qs_env%input)
    1103             : 
    1104             :       ! Build the sub orbital-orbital overlap neighbor lists
    1105         930 :       CALL section_vals_val_get(qs_env%input, "DFT%SUBCELLS", r_val=subcells)
    1106         930 :       nkind = SIZE(atomic_kind_set)
    1107        4478 :       ALLOCATE (atom2d(nkind))
    1108             : 
    1109             :       CALL atom2d_build(atom2d, local_particles_sub, distribution_2d_sub, atomic_kind_set, &
    1110         930 :                         molecule_set, molecule_only=.FALSE., particle_set=particle_set)
    1111             : 
    1112        2790 :       ALLOCATE (orb_present(nkind))
    1113        2790 :       ALLOCATE (orb_radius(nkind))
    1114        3720 :       ALLOCATE (pair_radius(nkind, nkind))
    1115             : 
    1116        2618 :       DO ikind = 1, nkind
    1117        1688 :          CALL get_qs_kind(qs_kind_set(ikind), basis_set=orb_basis_set)
    1118        2618 :          IF (ASSOCIATED(orb_basis_set)) THEN
    1119        1688 :             orb_present(ikind) = .TRUE.
    1120        1688 :             CALL get_gto_basis_set(gto_basis_set=orb_basis_set, kind_radius=orb_radius(ikind))
    1121             :          ELSE
    1122           0 :             orb_present(ikind) = .FALSE.
    1123           0 :             orb_radius(ikind) = 0.0_dp
    1124             :          END IF
    1125             :       END DO
    1126             : 
    1127         930 :       CALL pair_radius_setup(orb_present, orb_present, orb_radius, orb_radius, pair_radius)
    1128             : 
    1129         930 :       IF (PRESENT(sab_orb_sub)) THEN
    1130         694 :          NULLIFY (sab_orb_sub)
    1131             :          ! for cubic RPA/GW with kpoints, we need all neighbors and not only the symmetric ones
    1132         694 :          IF (my_do_kpoints) THEN
    1133             :             CALL build_neighbor_lists(sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1134             :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub", &
    1135           4 :                                       symmetric=.FALSE.)
    1136             :          ELSE
    1137             :             CALL build_neighbor_lists(sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1138         690 :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub")
    1139             :          END IF
    1140             :       ELSE
    1141         236 :          NULLIFY (my_sab_orb_sub)
    1142             :          ! for cubic RPA/GW with kpoints, we need all neighbors and not only the symmetric ones
    1143         236 :          IF (my_do_kpoints) THEN
    1144             :             CALL build_neighbor_lists(my_sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1145             :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub", &
    1146           4 :                                       symmetric=.FALSE.)
    1147             :          ELSE
    1148             :             CALL build_neighbor_lists(my_sab_orb_sub, particle_set, atom2d, cell, pair_radius, &
    1149         232 :                                       mic=.FALSE., subcells=subcells, molecular=.FALSE., nlname="sab_orb_sub")
    1150             :          END IF
    1151             :       END IF
    1152         930 :       CALL atom2d_cleanup(atom2d)
    1153         930 :       DEALLOCATE (atom2d)
    1154         930 :       DEALLOCATE (orb_present, orb_radius, pair_radius)
    1155             : 
    1156             :       ! a dbcsr_dist
    1157         930 :       ALLOCATE (dbcsr_dist_sub)
    1158         930 :       CALL cp_dbcsr_dist2d_to_dist(distribution_2d_sub, dbcsr_dist_sub)
    1159             : 
    1160             :       ! build a dbcsr matrix the hard way
    1161         930 :       natom = SIZE(particle_set)
    1162        2790 :       ALLOCATE (row_blk_sizes(natom))
    1163         930 :       IF (my_do_ri_aux_basis) THEN
    1164             : 
    1165         780 :          ALLOCATE (basis_set_ri_aux(nkind))
    1166         202 :          CALL basis_set_list_setup(basis_set_ri_aux, "RI_AUX", qs_kind_set)
    1167         202 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=row_blk_sizes, basis=basis_set_ri_aux)
    1168         202 :          DEALLOCATE (basis_set_ri_aux)
    1169             : 
    1170         728 :       ELSE IF (my_do_mixed_basis) THEN
    1171             : 
    1172           0 :          ALLOCATE (basis_set_ri_aux(nkind))
    1173           0 :          CALL basis_set_list_setup(basis_set_ri_aux, "RI_AUX", qs_kind_set)
    1174           0 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=row_blk_sizes, basis=basis_set_ri_aux)
    1175           0 :          DEALLOCATE (basis_set_ri_aux)
    1176             : 
    1177           0 :          ALLOCATE (col_blk_sizes(natom))
    1178             : 
    1179           0 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=col_blk_sizes)
    1180           0 :          col_blk_sizes = col_blk_sizes*group_size_prim
    1181             : 
    1182             :       ELSE
    1183         728 :          CALL get_particle_set(particle_set, qs_kind_set, nsgf=row_blk_sizes)
    1184             :       END IF
    1185             : 
    1186             :       NULLIFY (mat_munu%matrix)
    1187         930 :       ALLOCATE (mat_munu%matrix)
    1188             : 
    1189         930 :       IF (my_do_ri_aux_basis) THEN
    1190             : 
    1191             :          CALL dbcsr_create(matrix=mat_munu%matrix, &
    1192             :                            name="(ai|munu)", &
    1193             :                            dist=dbcsr_dist_sub, matrix_type=my_dbcsr_sym_type, &
    1194             :                            row_blk_size=row_blk_sizes, col_blk_size=row_blk_sizes, &
    1195         202 :                            nze=0)
    1196             : 
    1197         728 :       ELSE IF (my_do_mixed_basis) THEN
    1198             : 
    1199             :          CALL dbcsr_create(matrix=mat_munu%matrix, &
    1200             :                            name="(ai|munu)", &
    1201             :                            dist=dbcsr_dist_sub, matrix_type=my_dbcsr_sym_type, &
    1202             :                            row_blk_size=row_blk_sizes, col_blk_size=col_blk_sizes, &
    1203           0 :                            nze=0)
    1204             : 
    1205             :       ELSE
    1206             : 
    1207             :          CALL dbcsr_create(matrix=mat_munu%matrix, &
    1208             :                            name="(ai|munu)", &
    1209             :                            dist=dbcsr_dist_sub, matrix_type=my_dbcsr_sym_type, &
    1210             :                            row_blk_size=row_blk_sizes, col_blk_size=row_blk_sizes, &
    1211         728 :                            nze=0)
    1212             : 
    1213         728 :          IF (my_do_alloc_blocks_from_nbl) THEN
    1214             : 
    1215         560 :             IF (PRESENT(sab_orb_sub)) THEN
    1216         560 :                CALL cp_dbcsr_alloc_block_from_nbl(mat_munu%matrix, sab_orb_sub)
    1217             :             ELSE
    1218           0 :                CALL cp_dbcsr_alloc_block_from_nbl(mat_munu%matrix, my_sab_orb_sub)
    1219             :             END IF
    1220             : 
    1221             :          END IF
    1222             : 
    1223             :       END IF
    1224             : 
    1225         930 :       DEALLOCATE (row_blk_sizes)
    1226             : 
    1227         930 :       IF (my_do_mixed_basis) THEN
    1228           0 :          DEALLOCATE (col_blk_sizes)
    1229             :       END IF
    1230             : 
    1231         930 :       CALL dbcsr_distribution_release(dbcsr_dist_sub)
    1232         930 :       DEALLOCATE (dbcsr_dist_sub)
    1233             : 
    1234         930 :       CALL distribution_2d_release(distribution_2d_sub)
    1235             : 
    1236         930 :       CALL distribution_1d_release(local_particles_sub)
    1237         930 :       CALL distribution_1d_release(local_molecules_sub)
    1238             : 
    1239         930 :       IF (.NOT. PRESENT(sab_orb_sub)) THEN
    1240         236 :          CALL release_neighbor_list_sets(my_sab_orb_sub)
    1241             :       END IF
    1242             : 
    1243         930 :       CALL timestop(handle)
    1244             : 
    1245        3720 :    END SUBROUTINE create_mat_munu
    1246             : 
    1247             : ! **************************************************************************************************
    1248             : !> \brief ...
    1249             : !> \param mat_P_global ...
    1250             : !> \param qs_env ...
    1251             : !> \param mp2_env ...
    1252             : !> \param para_env ...
    1253             : ! **************************************************************************************************
    1254         134 :    SUBROUTINE create_matrix_P(mat_P_global, qs_env, mp2_env, para_env)
    1255             : 
    1256             :       TYPE(dbcsr_p_type), INTENT(OUT)                    :: mat_P_global
    1257             :       TYPE(qs_environment_type), POINTER                 :: qs_env
    1258             :       TYPE(mp2_type)                                     :: mp2_env
    1259             :       TYPE(mp_para_env_type), POINTER                    :: para_env
    1260             : 
    1261             :       CHARACTER(LEN=*), PARAMETER                        :: routineN = 'create_matrix_P'
    1262             : 
    1263             :       INTEGER                                            :: blacs_grid_layout, handle
    1264             :       LOGICAL                                            :: blacs_repeatable
    1265             :       TYPE(cp_blacs_env_type), POINTER                   :: blacs_env_global
    1266             : 
    1267         134 :       CALL timeset(routineN, handle)
    1268             : 
    1269         134 :       blacs_grid_layout = BLACS_GRID_SQUARE
    1270         134 :       blacs_repeatable = .TRUE.
    1271         134 :       NULLIFY (blacs_env_global)
    1272             :       CALL cp_blacs_env_create(blacs_env_global, para_env, &
    1273             :                                blacs_grid_layout, &
    1274         134 :                                blacs_repeatable)
    1275             : 
    1276             :       CALL create_mat_munu(mat_P_global, qs_env, mp2_env%mp2_gpw%eps_grid, &
    1277             :                            blacs_env_global, do_ri_aux_basis=.TRUE., &
    1278         134 :                            do_kpoints=mp2_env%ri_rpa_im_time%do_im_time_kpoints)
    1279             : 
    1280         134 :       CALL dbcsr_reserve_all_blocks(mat_P_global%matrix)
    1281         134 :       CALL cp_blacs_env_release(blacs_env_global)
    1282             : 
    1283         134 :       CALL timestop(handle)
    1284             : 
    1285         134 :    END SUBROUTINE
    1286             : 
    1287             : ! **************************************************************************************************
    1288             : !> \brief ...
    1289             : !> \param dft_control ...
    1290             : !> \param eps_pgf_orb_old ...
    1291             : !> \param eps_rho_rspace_old ...
    1292             : !> \param eps_gvg_rspace_old ...
    1293             : ! **************************************************************************************************
    1294         670 :    PURE SUBROUTINE get_eps_old(dft_control, eps_pgf_orb_old, eps_rho_rspace_old, eps_gvg_rspace_old)
    1295             : 
    1296             :       TYPE(dft_control_type), INTENT(INOUT)              :: dft_control
    1297             :       REAL(kind=dp), INTENT(OUT)                         :: eps_pgf_orb_old, eps_rho_rspace_old, &
    1298             :                                                             eps_gvg_rspace_old
    1299             : 
    1300             :       ! re-init the radii to be able to generate pair lists with MP2-appropriate screening
    1301         670 :       eps_pgf_orb_old = dft_control%qs_control%eps_pgf_orb
    1302         670 :       eps_rho_rspace_old = dft_control%qs_control%eps_rho_rspace
    1303         670 :       eps_gvg_rspace_old = dft_control%qs_control%eps_gvg_rspace
    1304             : 
    1305         670 :    END SUBROUTINE get_eps_old
    1306             : 
    1307             : END MODULE mp2_gpw

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