[1] | 1 | SUBROUTINE init_pegrid |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual revisions: |
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| 5 | ! ----------------- |
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[181] | 6 | ! ATTENTION: nnz_x undefined problem still has to be solved!!!!!!!! |
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[197] | 7 | ! multigrid levels are limited by subdomains if mg_switch_to_pe0_level = -1, |
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[181] | 8 | ! nz is used instead nnz for calculating mg-levels |
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[151] | 9 | ! Collect on PE0 horizontal index bounds from all other PEs, |
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| 10 | ! broadcast the id of the inflow PE (using the respective communicator) |
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[108] | 11 | ! TEST OUTPUT (TO BE REMOVED) logging mpi2 ierr values |
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[77] | 12 | ! |
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| 13 | ! Former revisions: |
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| 14 | ! ----------------- |
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| 15 | ! $Id: init_pegrid.f90 197 2008-09-16 15:29:03Z raasch $ |
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| 16 | ! |
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[139] | 17 | ! 114 2007-10-10 00:03:15Z raasch |
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| 18 | ! Allocation of wall flag arrays for multigrid solver |
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| 19 | ! |
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[110] | 20 | ! 108 2007-08-24 15:10:38Z letzel |
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| 21 | ! Intercommunicator (comm_inter) and derived data type (type_xy) for |
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| 22 | ! coupled model runs created, assign coupling_mode_remote, |
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| 23 | ! indices nxlu and nysv are calculated (needed for non-cyclic boundary |
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| 24 | ! conditions) |
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| 25 | ! |
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[83] | 26 | ! 82 2007-04-16 15:40:52Z raasch |
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| 27 | ! Cpp-directive lcmuk changed to intel_openmp_bug, setting of host on lcmuk by |
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| 28 | ! cpp-directive removed |
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| 29 | ! |
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[77] | 30 | ! 75 2007-03-22 09:54:05Z raasch |
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[73] | 31 | ! uxrp, vynp eliminated, |
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[75] | 32 | ! dirichlet/neumann changed to dirichlet/radiation, etc., |
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| 33 | ! poisfft_init is only called if fft-solver is switched on |
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[1] | 34 | ! |
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[3] | 35 | ! RCS Log replace by Id keyword, revision history cleaned up |
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| 36 | ! |
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[1] | 37 | ! Revision 1.28 2006/04/26 13:23:32 raasch |
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| 38 | ! lcmuk does not understand the !$ comment so a cpp-directive is required |
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| 39 | ! |
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| 40 | ! Revision 1.1 1997/07/24 11:15:09 raasch |
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| 41 | ! Initial revision |
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| 42 | ! |
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| 43 | ! |
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| 44 | ! Description: |
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| 45 | ! ------------ |
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| 46 | ! Determination of the virtual processor topology (if not prescribed by the |
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| 47 | ! user)and computation of the grid point number and array bounds of the local |
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| 48 | ! domains. |
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| 49 | !------------------------------------------------------------------------------! |
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| 50 | |
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| 51 | USE control_parameters |
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| 52 | USE fft_xy |
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[163] | 53 | USE grid_variables |
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[1] | 54 | USE indices |
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| 55 | USE pegrid |
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| 56 | USE poisfft_mod |
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| 57 | USE poisfft_hybrid_mod |
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| 58 | USE statistics |
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| 59 | USE transpose_indices |
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| 60 | |
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| 61 | |
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| 62 | IMPLICIT NONE |
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| 63 | |
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[163] | 64 | INTEGER :: gathered_size, i, id_inflow_l, id_recycling_l, ind(5), j, k, & |
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[151] | 65 | maximum_grid_level_l, mg_switch_to_pe0_level_l, mg_levels_x, & |
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| 66 | mg_levels_y, mg_levels_z, nnx_y, nnx_z, nny_x, nny_z, nnz_x, & |
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| 67 | nnz_y, numproc_sqr, nx_total, nxl_l, nxr_l, nyn_l, nys_l, & |
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| 68 | nzb_l, nzt_l, omp_get_num_threads, subdomain_size |
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[1] | 69 | |
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| 70 | INTEGER, DIMENSION(:), ALLOCATABLE :: ind_all, nxlf, nxrf, nynf, nysf |
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| 71 | |
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| 72 | LOGICAL :: found |
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| 73 | |
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| 74 | ! |
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| 75 | !-- Get the number of OpenMP threads |
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| 76 | !$OMP PARALLEL |
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[82] | 77 | #if defined( __intel_openmp_bug ) |
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[1] | 78 | threads_per_task = omp_get_num_threads() |
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| 79 | #else |
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| 80 | !$ threads_per_task = omp_get_num_threads() |
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| 81 | #endif |
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| 82 | !$OMP END PARALLEL |
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| 83 | |
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| 84 | |
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| 85 | #if defined( __parallel ) |
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| 86 | ! |
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| 87 | !-- Determine the processor topology or check it, if prescribed by the user |
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| 88 | IF ( npex == -1 .AND. npey == -1 ) THEN |
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| 89 | |
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| 90 | ! |
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| 91 | !-- Automatic determination of the topology |
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| 92 | !-- The default on SMP- and cluster-hosts is a 1d-decomposition along x |
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| 93 | IF ( host(1:3) == 'ibm' .OR. host(1:3) == 'nec' .OR. & |
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| 94 | host(1:2) == 'lc' .OR. host(1:3) == 'dec' ) THEN |
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| 95 | |
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| 96 | pdims(1) = numprocs |
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| 97 | pdims(2) = 1 |
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| 98 | |
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| 99 | ELSE |
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| 100 | |
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| 101 | numproc_sqr = SQRT( REAL( numprocs ) ) |
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| 102 | pdims(1) = MAX( numproc_sqr , 1 ) |
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| 103 | DO WHILE ( MOD( numprocs , pdims(1) ) /= 0 ) |
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| 104 | pdims(1) = pdims(1) - 1 |
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| 105 | ENDDO |
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| 106 | pdims(2) = numprocs / pdims(1) |
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| 107 | |
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| 108 | ENDIF |
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| 109 | |
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| 110 | ELSEIF ( npex /= -1 .AND. npey /= -1 ) THEN |
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| 111 | |
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| 112 | ! |
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| 113 | !-- Prescribed by user. Number of processors on the prescribed topology |
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| 114 | !-- must be equal to the number of PEs available to the job |
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| 115 | IF ( ( npex * npey ) /= numprocs ) THEN |
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| 116 | PRINT*, '+++ init_pegrid:' |
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| 117 | PRINT*, ' number of PEs of the prescribed topology (', npex*npey, & |
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| 118 | ') does not match the number of PEs available to the ', & |
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| 119 | 'job (', numprocs, ')' |
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| 120 | CALL local_stop |
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| 121 | ENDIF |
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| 122 | pdims(1) = npex |
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| 123 | pdims(2) = npey |
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| 124 | |
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| 125 | ELSE |
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| 126 | ! |
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| 127 | !-- If the processor topology is prescribed by the user, the number of |
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| 128 | !-- PEs must be given in both directions |
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| 129 | PRINT*, '+++ init_pegrid:' |
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| 130 | PRINT*, ' if the processor topology is prescribed by the user, ', & |
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| 131 | 'both values of "npex" and "npey" must be given in the ', & |
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| 132 | 'NAMELIST-parameter file' |
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| 133 | CALL local_stop |
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| 134 | |
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| 135 | ENDIF |
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| 136 | |
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| 137 | ! |
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| 138 | !-- The hybrid solver can only be used in case of a 1d-decomposition along x |
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| 139 | IF ( pdims(2) /= 1 .AND. psolver == 'poisfft_hybrid' ) THEN |
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| 140 | IF ( myid == 0 ) THEN |
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| 141 | PRINT*, '*** init_pegrid: psolver = "poisfft_hybrid" can only be' |
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| 142 | PRINT*, ' used in case of a 1d-decomposition along x' |
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| 143 | ENDIF |
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| 144 | ENDIF |
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| 145 | |
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| 146 | ! |
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| 147 | !-- If necessary, set horizontal boundary conditions to non-cyclic |
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| 148 | IF ( bc_lr /= 'cyclic' ) cyclic(1) = .FALSE. |
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| 149 | IF ( bc_ns /= 'cyclic' ) cyclic(2) = .FALSE. |
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| 150 | |
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| 151 | ! |
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| 152 | !-- Create the virtual processor grid |
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| 153 | CALL MPI_CART_CREATE( comm_palm, ndim, pdims, cyclic, reorder, & |
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| 154 | comm2d, ierr ) |
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| 155 | CALL MPI_COMM_RANK( comm2d, myid, ierr ) |
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| 156 | WRITE (myid_char,'(''_'',I4.4)') myid |
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| 157 | |
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| 158 | CALL MPI_CART_COORDS( comm2d, myid, ndim, pcoord, ierr ) |
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| 159 | CALL MPI_CART_SHIFT( comm2d, 0, 1, pleft, pright, ierr ) |
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| 160 | CALL MPI_CART_SHIFT( comm2d, 1, 1, psouth, pnorth, ierr ) |
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| 161 | |
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| 162 | ! |
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| 163 | !-- Determine sub-topologies for transpositions |
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| 164 | !-- Transposition from z to x: |
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| 165 | remain_dims(1) = .TRUE. |
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| 166 | remain_dims(2) = .FALSE. |
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| 167 | CALL MPI_CART_SUB( comm2d, remain_dims, comm1dx, ierr ) |
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| 168 | CALL MPI_COMM_RANK( comm1dx, myidx, ierr ) |
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| 169 | ! |
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| 170 | !-- Transposition from x to y |
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| 171 | remain_dims(1) = .FALSE. |
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| 172 | remain_dims(2) = .TRUE. |
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| 173 | CALL MPI_CART_SUB( comm2d, remain_dims, comm1dy, ierr ) |
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| 174 | CALL MPI_COMM_RANK( comm1dy, myidy, ierr ) |
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| 175 | |
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| 176 | |
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| 177 | ! |
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| 178 | !-- Find a grid (used for array d) which will match the transposition demands |
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| 179 | IF ( grid_matching == 'strict' ) THEN |
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| 180 | |
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| 181 | nxa = nx; nya = ny; nza = nz |
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| 182 | |
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| 183 | ELSE |
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| 184 | |
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| 185 | found = .FALSE. |
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| 186 | xn: DO nxa = nx, 2*nx |
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| 187 | ! |
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| 188 | !-- Meet conditions for nx |
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| 189 | IF ( MOD( nxa+1, pdims(1) ) /= 0 .OR. & |
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| 190 | MOD( nxa+1, pdims(2) ) /= 0 ) CYCLE xn |
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| 191 | |
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| 192 | yn: DO nya = ny, 2*ny |
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| 193 | ! |
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| 194 | !-- Meet conditions for ny |
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| 195 | IF ( MOD( nya+1, pdims(2) ) /= 0 .OR. & |
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| 196 | MOD( nya+1, pdims(1) ) /= 0 ) CYCLE yn |
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| 197 | |
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| 198 | |
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| 199 | zn: DO nza = nz, 2*nz |
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| 200 | ! |
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| 201 | !-- Meet conditions for nz |
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| 202 | IF ( ( MOD( nza, pdims(1) ) /= 0 .AND. pdims(1) /= 1 .AND. & |
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| 203 | pdims(2) /= 1 ) .OR. & |
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| 204 | ( MOD( nza, pdims(2) ) /= 0 .AND. dt_dosp /= 9999999.9 & |
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| 205 | ) ) THEN |
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| 206 | CYCLE zn |
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| 207 | ELSE |
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| 208 | found = .TRUE. |
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| 209 | EXIT xn |
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| 210 | ENDIF |
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| 211 | |
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| 212 | ENDDO zn |
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| 213 | |
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| 214 | ENDDO yn |
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| 215 | |
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| 216 | ENDDO xn |
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| 217 | |
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| 218 | IF ( .NOT. found ) THEN |
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| 219 | IF ( myid == 0 ) THEN |
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| 220 | PRINT*,'+++ init_pegrid: no matching grid for transpositions found' |
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| 221 | ENDIF |
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| 222 | CALL local_stop |
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| 223 | ENDIF |
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| 224 | |
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| 225 | ENDIF |
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| 226 | |
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| 227 | ! |
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| 228 | !-- Calculate array bounds in x-direction for every PE. |
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| 229 | !-- The last PE along x may get less grid points than the others |
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| 230 | ALLOCATE( nxlf(0:pdims(1)-1), nxrf(0:pdims(1)-1), nynf(0:pdims(2)-1), & |
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| 231 | nysf(0:pdims(2)-1), nnx_pe(0:pdims(1)-1), nny_pe(0:pdims(2)-1) ) |
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| 232 | |
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| 233 | IF ( MOD( nxa+1 , pdims(1) ) /= 0 ) THEN |
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| 234 | IF ( myid == 0 ) THEN |
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| 235 | PRINT*,'+++ x-direction: gridpoint number (',nx+1,') is not an' |
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| 236 | PRINT*,' integral divisor of the number of proces', & |
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| 237 | &'sors (', pdims(1),')' |
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| 238 | ENDIF |
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| 239 | CALL local_stop |
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| 240 | ELSE |
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| 241 | nnx = ( nxa + 1 ) / pdims(1) |
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| 242 | IF ( nnx*pdims(1) - ( nx + 1) > nnx ) THEN |
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| 243 | IF ( myid == 0 ) THEN |
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| 244 | PRINT*,'+++ x-direction: nx does not match the requirements ', & |
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| 245 | 'given by the number of PEs' |
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| 246 | PRINT*,' used' |
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| 247 | PRINT*,' please use nx = ', nx - ( pdims(1) - ( nnx*pdims(1) & |
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| 248 | - ( nx + 1 ) ) ), ' instead of nx =', nx |
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| 249 | ENDIF |
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| 250 | CALL local_stop |
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| 251 | ENDIF |
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| 252 | ENDIF |
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| 253 | |
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| 254 | ! |
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| 255 | !-- Left and right array bounds, number of gridpoints |
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| 256 | DO i = 0, pdims(1)-1 |
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| 257 | nxlf(i) = i * nnx |
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| 258 | nxrf(i) = ( i + 1 ) * nnx - 1 |
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| 259 | nnx_pe(i) = MIN( nx, nxrf(i) ) - nxlf(i) + 1 |
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| 260 | ENDDO |
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| 261 | |
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| 262 | ! |
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| 263 | !-- Calculate array bounds in y-direction for every PE. |
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| 264 | IF ( MOD( nya+1 , pdims(2) ) /= 0 ) THEN |
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| 265 | IF ( myid == 0 ) THEN |
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| 266 | PRINT*,'+++ y-direction: gridpoint number (',ny+1,') is not an' |
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| 267 | PRINT*,' integral divisor of the number of proces', & |
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| 268 | &'sors (', pdims(2),')' |
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| 269 | ENDIF |
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| 270 | CALL local_stop |
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| 271 | ELSE |
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| 272 | nny = ( nya + 1 ) / pdims(2) |
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| 273 | IF ( nny*pdims(2) - ( ny + 1) > nny ) THEN |
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| 274 | IF ( myid == 0 ) THEN |
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| 275 | PRINT*,'+++ x-direction: nx does not match the requirements ', & |
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| 276 | 'given by the number of PEs' |
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| 277 | PRINT*,' used' |
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| 278 | PRINT*,' please use nx = ', nx - ( pdims(1) - ( nnx*pdims(1) & |
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| 279 | - ( nx + 1 ) ) ), ' instead of nx =', nx |
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| 280 | ENDIF |
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| 281 | CALL local_stop |
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| 282 | ENDIF |
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| 283 | ENDIF |
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| 284 | |
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| 285 | ! |
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| 286 | !-- South and north array bounds |
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| 287 | DO j = 0, pdims(2)-1 |
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| 288 | nysf(j) = j * nny |
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| 289 | nynf(j) = ( j + 1 ) * nny - 1 |
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| 290 | nny_pe(j) = MIN( ny, nynf(j) ) - nysf(j) + 1 |
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| 291 | ENDDO |
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| 292 | |
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| 293 | ! |
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| 294 | !-- Local array bounds of the respective PEs |
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| 295 | nxl = nxlf(pcoord(1)) |
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| 296 | nxra = nxrf(pcoord(1)) |
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| 297 | nxr = MIN( nx, nxra ) |
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| 298 | nys = nysf(pcoord(2)) |
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| 299 | nyna = nynf(pcoord(2)) |
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| 300 | nyn = MIN( ny, nyna ) |
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| 301 | nzb = 0 |
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| 302 | nzta = nza |
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| 303 | nzt = MIN( nz, nzta ) |
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| 304 | nnz = nza |
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| 305 | |
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| 306 | ! |
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| 307 | !-- Calculate array bounds and gridpoint numbers for the transposed arrays |
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| 308 | !-- (needed in the pressure solver) |
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| 309 | !-- For the transposed arrays, cyclic boundaries as well as top and bottom |
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| 310 | !-- boundaries are omitted, because they are obstructive to the transposition |
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| 311 | |
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| 312 | ! |
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| 313 | !-- 1. transposition z --> x |
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| 314 | !-- This transposition is not neccessary in case of a 1d-decomposition along x, |
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| 315 | !-- except that the uptream-spline method is switched on |
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| 316 | IF ( pdims(2) /= 1 .OR. momentum_advec == 'ups-scheme' .OR. & |
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| 317 | scalar_advec == 'ups-scheme' ) THEN |
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| 318 | |
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| 319 | IF ( pdims(2) == 1 .AND. ( momentum_advec == 'ups-scheme' .OR. & |
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| 320 | scalar_advec == 'ups-scheme' ) ) THEN |
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| 321 | IF ( myid == 0 ) THEN |
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| 322 | PRINT*,'+++ WARNING: init_pegrid: 1d-decomposition along x ', & |
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| 323 | &'chosen but nz restrictions may occur' |
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| 324 | PRINT*,' since ups-scheme is activated' |
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| 325 | ENDIF |
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| 326 | ENDIF |
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| 327 | nys_x = nys |
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| 328 | nyn_xa = nyna |
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| 329 | nyn_x = nyn |
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| 330 | nny_x = nny |
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| 331 | IF ( MOD( nza , pdims(1) ) /= 0 ) THEN |
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| 332 | IF ( myid == 0 ) THEN |
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| 333 | PRINT*,'+++ transposition z --> x:' |
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| 334 | PRINT*,' nz=',nz,' is not an integral divisior of pdims(1)=', & |
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| 335 | &pdims(1) |
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| 336 | ENDIF |
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| 337 | CALL local_stop |
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| 338 | ENDIF |
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| 339 | nnz_x = nza / pdims(1) |
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| 340 | nzb_x = 1 + myidx * nnz_x |
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| 341 | nzt_xa = ( myidx + 1 ) * nnz_x |
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| 342 | nzt_x = MIN( nzt, nzt_xa ) |
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| 343 | |
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| 344 | sendrecvcount_zx = nnx * nny * nnz_x |
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| 345 | |
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[181] | 346 | ELSE |
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| 347 | ! |
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| 348 | !--- Setting of dummy values because otherwise variables are undefined in |
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| 349 | !--- the next step x --> y |
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| 350 | !--- WARNING: This case has still to be clarified!!!!!!!!!!!! |
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| 351 | nnz_x = 1 |
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| 352 | nzb_x = 1 |
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| 353 | nzt_xa = 1 |
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| 354 | nzt_x = 1 |
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| 355 | nny_x = nny |
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| 356 | |
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[1] | 357 | ENDIF |
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| 358 | |
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| 359 | ! |
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| 360 | !-- 2. transposition x --> y |
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| 361 | nnz_y = nnz_x |
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| 362 | nzb_y = nzb_x |
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| 363 | nzt_ya = nzt_xa |
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| 364 | nzt_y = nzt_x |
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| 365 | IF ( MOD( nxa+1 , pdims(2) ) /= 0 ) THEN |
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| 366 | IF ( myid == 0 ) THEN |
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| 367 | PRINT*,'+++ transposition x --> y:' |
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| 368 | PRINT*,' nx+1=',nx+1,' is not an integral divisor of ',& |
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| 369 | &'pdims(2)=',pdims(2) |
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| 370 | ENDIF |
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| 371 | CALL local_stop |
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| 372 | ENDIF |
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| 373 | nnx_y = (nxa+1) / pdims(2) |
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| 374 | nxl_y = myidy * nnx_y |
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| 375 | nxr_ya = ( myidy + 1 ) * nnx_y - 1 |
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| 376 | nxr_y = MIN( nx, nxr_ya ) |
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| 377 | |
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| 378 | sendrecvcount_xy = nnx_y * nny_x * nnz_y |
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| 379 | |
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| 380 | ! |
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| 381 | !-- 3. transposition y --> z (ELSE: x --> y in case of 1D-decomposition |
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| 382 | !-- along x) |
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| 383 | IF ( pdims(2) /= 1 .OR. momentum_advec == 'ups-scheme' .OR. & |
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| 384 | scalar_advec == 'ups-scheme' ) THEN |
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| 385 | ! |
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| 386 | !-- y --> z |
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| 387 | !-- This transposition is not neccessary in case of a 1d-decomposition |
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| 388 | !-- along x, except that the uptream-spline method is switched on |
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| 389 | nnx_z = nnx_y |
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| 390 | nxl_z = nxl_y |
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| 391 | nxr_za = nxr_ya |
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| 392 | nxr_z = nxr_y |
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| 393 | IF ( MOD( nya+1 , pdims(1) ) /= 0 ) THEN |
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| 394 | IF ( myid == 0 ) THEN |
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| 395 | PRINT*,'+++ Transposition y --> z:' |
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| 396 | PRINT*,' ny+1=',ny+1,' is not an integral divisor of ',& |
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| 397 | &'pdims(1)=',pdims(1) |
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| 398 | ENDIF |
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| 399 | CALL local_stop |
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| 400 | ENDIF |
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| 401 | nny_z = (nya+1) / pdims(1) |
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| 402 | nys_z = myidx * nny_z |
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| 403 | nyn_za = ( myidx + 1 ) * nny_z - 1 |
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| 404 | nyn_z = MIN( ny, nyn_za ) |
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| 405 | |
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| 406 | sendrecvcount_yz = nnx_y * nny_z * nnz_y |
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| 407 | |
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| 408 | ELSE |
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| 409 | ! |
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| 410 | !-- x --> y. This condition must be fulfilled for a 1D-decomposition along x |
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| 411 | IF ( MOD( nya+1 , pdims(1) ) /= 0 ) THEN |
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| 412 | IF ( myid == 0 ) THEN |
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| 413 | PRINT*,'+++ Transposition x --> y:' |
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| 414 | PRINT*,' ny+1=',ny+1,' is not an integral divisor of ',& |
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| 415 | &'pdims(1)=',pdims(1) |
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| 416 | ENDIF |
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| 417 | CALL local_stop |
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| 418 | ENDIF |
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| 419 | |
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| 420 | ENDIF |
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| 421 | |
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| 422 | ! |
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| 423 | !-- Indices for direct transpositions z --> y (used for calculating spectra) |
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| 424 | IF ( dt_dosp /= 9999999.9 ) THEN |
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| 425 | IF ( MOD( nza, pdims(2) ) /= 0 ) THEN |
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| 426 | IF ( myid == 0 ) THEN |
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| 427 | PRINT*,'+++ Direct transposition z --> y (needed for spectra):' |
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| 428 | PRINT*,' nz=',nz,' is not an integral divisor of ',& |
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| 429 | &'pdims(2)=',pdims(2) |
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| 430 | ENDIF |
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| 431 | CALL local_stop |
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| 432 | ELSE |
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| 433 | nxl_yd = nxl |
---|
| 434 | nxr_yda = nxra |
---|
| 435 | nxr_yd = nxr |
---|
| 436 | nzb_yd = 1 + myidy * ( nza / pdims(2) ) |
---|
| 437 | nzt_yda = ( myidy + 1 ) * ( nza / pdims(2) ) |
---|
| 438 | nzt_yd = MIN( nzt, nzt_yda ) |
---|
| 439 | |
---|
| 440 | sendrecvcount_zyd = nnx * nny * ( nza / pdims(2) ) |
---|
| 441 | ENDIF |
---|
| 442 | ENDIF |
---|
| 443 | |
---|
| 444 | ! |
---|
| 445 | !-- Indices for direct transpositions y --> x (they are only possible in case |
---|
| 446 | !-- of a 1d-decomposition along x) |
---|
| 447 | IF ( pdims(2) == 1 ) THEN |
---|
| 448 | nny_x = nny / pdims(1) |
---|
| 449 | nys_x = myid * nny_x |
---|
| 450 | nyn_xa = ( myid + 1 ) * nny_x - 1 |
---|
| 451 | nyn_x = MIN( ny, nyn_xa ) |
---|
| 452 | nzb_x = 1 |
---|
| 453 | nzt_xa = nza |
---|
| 454 | nzt_x = nz |
---|
| 455 | sendrecvcount_xy = nnx * nny_x * nza |
---|
| 456 | ENDIF |
---|
| 457 | |
---|
| 458 | ! |
---|
| 459 | !-- Indices for direct transpositions x --> y (they are only possible in case |
---|
| 460 | !-- of a 1d-decomposition along y) |
---|
| 461 | IF ( pdims(1) == 1 ) THEN |
---|
| 462 | nnx_y = nnx / pdims(2) |
---|
| 463 | nxl_y = myid * nnx_y |
---|
| 464 | nxr_ya = ( myid + 1 ) * nnx_y - 1 |
---|
| 465 | nxr_y = MIN( nx, nxr_ya ) |
---|
| 466 | nzb_y = 1 |
---|
| 467 | nzt_ya = nza |
---|
| 468 | nzt_y = nz |
---|
| 469 | sendrecvcount_xy = nnx_y * nny * nza |
---|
| 470 | ENDIF |
---|
| 471 | |
---|
| 472 | ! |
---|
| 473 | !-- Arrays for storing the array bounds are needed any more |
---|
| 474 | DEALLOCATE( nxlf , nxrf , nynf , nysf ) |
---|
| 475 | |
---|
[145] | 476 | ! |
---|
| 477 | !-- Collect index bounds from other PEs (to be written to restart file later) |
---|
| 478 | ALLOCATE( hor_index_bounds(4,0:numprocs-1) ) |
---|
| 479 | |
---|
| 480 | IF ( myid == 0 ) THEN |
---|
| 481 | |
---|
| 482 | hor_index_bounds(1,0) = nxl |
---|
| 483 | hor_index_bounds(2,0) = nxr |
---|
| 484 | hor_index_bounds(3,0) = nys |
---|
| 485 | hor_index_bounds(4,0) = nyn |
---|
| 486 | |
---|
| 487 | ! |
---|
| 488 | !-- Receive data from all other PEs |
---|
| 489 | DO i = 1, numprocs-1 |
---|
| 490 | CALL MPI_RECV( ibuf, 4, MPI_INTEGER, i, MPI_ANY_TAG, comm2d, status, & |
---|
| 491 | ierr ) |
---|
| 492 | hor_index_bounds(:,i) = ibuf(1:4) |
---|
| 493 | ENDDO |
---|
| 494 | |
---|
| 495 | ELSE |
---|
| 496 | ! |
---|
| 497 | !-- Send index bounds to PE0 |
---|
| 498 | ibuf(1) = nxl |
---|
| 499 | ibuf(2) = nxr |
---|
| 500 | ibuf(3) = nys |
---|
| 501 | ibuf(4) = nyn |
---|
| 502 | CALL MPI_SEND( ibuf, 4, MPI_INTEGER, 0, myid, comm2d, ierr ) |
---|
| 503 | |
---|
| 504 | ENDIF |
---|
| 505 | |
---|
[1] | 506 | #if defined( __print ) |
---|
| 507 | ! |
---|
| 508 | !-- Control output |
---|
| 509 | IF ( myid == 0 ) THEN |
---|
| 510 | PRINT*, '*** processor topology ***' |
---|
| 511 | PRINT*, ' ' |
---|
| 512 | PRINT*, 'myid pcoord left right south north idx idy nxl: nxr',& |
---|
| 513 | &' nys: nyn' |
---|
| 514 | PRINT*, '------------------------------------------------------------',& |
---|
| 515 | &'-----------' |
---|
| 516 | WRITE (*,1000) 0, pcoord(1), pcoord(2), pleft, pright, psouth, pnorth, & |
---|
| 517 | myidx, myidy, nxl, nxr, nys, nyn |
---|
| 518 | 1000 FORMAT (I4,2X,'(',I3,',',I3,')',3X,I4,2X,I4,3X,I4,2X,I4,2X,I3,1X,I3, & |
---|
| 519 | 2(2X,I4,':',I4)) |
---|
| 520 | |
---|
| 521 | ! |
---|
[108] | 522 | !-- Receive data from the other PEs |
---|
[1] | 523 | DO i = 1,numprocs-1 |
---|
| 524 | CALL MPI_RECV( ibuf, 12, MPI_INTEGER, i, MPI_ANY_TAG, comm2d, status, & |
---|
| 525 | ierr ) |
---|
| 526 | WRITE (*,1000) i, ( ibuf(j) , j = 1,12 ) |
---|
| 527 | ENDDO |
---|
| 528 | ELSE |
---|
| 529 | |
---|
| 530 | ! |
---|
| 531 | !-- Send data to PE0 |
---|
| 532 | ibuf(1) = pcoord(1); ibuf(2) = pcoord(2); ibuf(3) = pleft |
---|
| 533 | ibuf(4) = pright; ibuf(5) = psouth; ibuf(6) = pnorth; ibuf(7) = myidx |
---|
| 534 | ibuf(8) = myidy; ibuf(9) = nxl; ibuf(10) = nxr; ibuf(11) = nys |
---|
| 535 | ibuf(12) = nyn |
---|
| 536 | CALL MPI_SEND( ibuf, 12, MPI_INTEGER, 0, myid, comm2d, ierr ) |
---|
| 537 | ENDIF |
---|
| 538 | #endif |
---|
| 539 | |
---|
[102] | 540 | #if defined( __mpi2 ) |
---|
| 541 | ! |
---|
| 542 | !-- In case of coupled runs, get the port name on PE0 of the atmosphere model |
---|
| 543 | !-- and pass it to PE0 of the ocean model |
---|
| 544 | IF ( myid == 0 ) THEN |
---|
| 545 | |
---|
| 546 | IF ( coupling_mode == 'atmosphere_to_ocean' ) THEN |
---|
| 547 | |
---|
| 548 | CALL MPI_OPEN_PORT( MPI_INFO_NULL, port_name, ierr ) |
---|
[108] | 549 | ! |
---|
| 550 | !-- TEST OUTPUT (TO BE REMOVED) |
---|
| 551 | WRITE(9,*) TRIM( coupling_mode ), & |
---|
| 552 | ', ierr after MPI_OPEN_PORT: ', ierr |
---|
| 553 | CALL LOCAL_FLUSH( 9 ) |
---|
| 554 | |
---|
[102] | 555 | CALL MPI_PUBLISH_NAME( 'palm_coupler', MPI_INFO_NULL, port_name, & |
---|
| 556 | ierr ) |
---|
[104] | 557 | ! |
---|
[108] | 558 | !-- TEST OUTPUT (TO BE REMOVED) |
---|
| 559 | WRITE(9,*) TRIM( coupling_mode ), & |
---|
| 560 | ', ierr after MPI_PUBLISH_NAME: ', ierr |
---|
| 561 | CALL LOCAL_FLUSH( 9 ) |
---|
| 562 | |
---|
| 563 | ! |
---|
[104] | 564 | !-- Write a flag file for the ocean model and the other atmosphere |
---|
| 565 | !-- processes. |
---|
| 566 | !-- There seems to be a bug in MPICH2 which causes hanging processes |
---|
| 567 | !-- in case that execution of LOOKUP_NAME is continued too early |
---|
| 568 | !-- (i.e. before the port has been created) |
---|
| 569 | OPEN( 90, FILE='COUPLING_PORT_OPENED', FORM='FORMATTED' ) |
---|
| 570 | WRITE ( 90, '(''TRUE'')' ) |
---|
| 571 | CLOSE ( 90 ) |
---|
[102] | 572 | |
---|
| 573 | ELSEIF ( coupling_mode == 'ocean_to_atmosphere' ) THEN |
---|
| 574 | |
---|
[104] | 575 | ! |
---|
| 576 | !-- Continue only if the atmosphere model has created the port. |
---|
| 577 | !-- There seems to be a bug in MPICH2 which causes hanging processes |
---|
| 578 | !-- in case that execution of LOOKUP_NAME is continued too early |
---|
| 579 | !-- (i.e. before the port has been created) |
---|
| 580 | INQUIRE( FILE='COUPLING_PORT_OPENED', EXIST=found ) |
---|
| 581 | DO WHILE ( .NOT. found ) |
---|
| 582 | INQUIRE( FILE='COUPLING_PORT_OPENED', EXIST=found ) |
---|
| 583 | ENDDO |
---|
| 584 | |
---|
[102] | 585 | CALL MPI_LOOKUP_NAME( 'palm_coupler', MPI_INFO_NULL, port_name, ierr ) |
---|
[108] | 586 | ! |
---|
| 587 | !-- TEST OUTPUT (TO BE REMOVED) |
---|
| 588 | WRITE(9,*) TRIM( coupling_mode ), & |
---|
| 589 | ', ierr after MPI_LOOKUP_NAME: ', ierr |
---|
| 590 | CALL LOCAL_FLUSH( 9 ) |
---|
[102] | 591 | |
---|
[108] | 592 | |
---|
[102] | 593 | ENDIF |
---|
| 594 | |
---|
| 595 | ENDIF |
---|
| 596 | |
---|
| 597 | ! |
---|
| 598 | !-- In case of coupled runs, establish the connection between the atmosphere |
---|
| 599 | !-- and the ocean model and define the intercommunicator (comm_inter) |
---|
| 600 | CALL MPI_BARRIER( comm2d, ierr ) |
---|
| 601 | IF ( coupling_mode == 'atmosphere_to_ocean' ) THEN |
---|
| 602 | |
---|
| 603 | print*, '... before COMM_ACCEPT' |
---|
| 604 | CALL MPI_COMM_ACCEPT( port_name, MPI_INFO_NULL, 0, MPI_COMM_WORLD, & |
---|
| 605 | comm_inter, ierr ) |
---|
| 606 | print*, '--- ierr = ', ierr |
---|
| 607 | print*, '--- comm_inter atmosphere = ', comm_inter |
---|
| 608 | |
---|
[108] | 609 | coupling_mode_remote = 'ocean_to_atmosphere' |
---|
| 610 | |
---|
[102] | 611 | ELSEIF ( coupling_mode == 'ocean_to_atmosphere' ) THEN |
---|
| 612 | |
---|
| 613 | IF ( myid == 0 ) PRINT*, '*** read: ', port_name, ' ierr = ', ierr |
---|
| 614 | print*, '... before COMM_CONNECT' |
---|
| 615 | CALL MPI_COMM_CONNECT( port_name, MPI_INFO_NULL, 0, MPI_COMM_WORLD, & |
---|
| 616 | comm_inter, ierr ) |
---|
| 617 | print*, '--- ierr = ', ierr |
---|
| 618 | print*, '--- comm_inter ocean = ', comm_inter |
---|
| 619 | |
---|
[108] | 620 | coupling_mode_remote = 'atmosphere_to_ocean' |
---|
| 621 | |
---|
[102] | 622 | ENDIF |
---|
| 623 | |
---|
| 624 | ! |
---|
| 625 | !-- In case of coupled runs, create a new MPI derived datatype for the |
---|
| 626 | !-- exchange of surface (xy) data . |
---|
| 627 | !-- Gridpoint number for the exchange of ghost points (xy-plane) |
---|
| 628 | ngp_xy = ( nxr - nxl + 3 ) * ( nyn - nys + 3 ) |
---|
| 629 | |
---|
| 630 | ! |
---|
| 631 | !-- Define a new MPI derived datatype for the exchange of ghost points in |
---|
| 632 | !-- y-direction for 2D-arrays (line) |
---|
| 633 | CALL MPI_TYPE_VECTOR( ngp_xy, 1, nzt-nzb+2, MPI_REAL, type_xy, ierr ) |
---|
| 634 | CALL MPI_TYPE_COMMIT( type_xy, ierr ) |
---|
| 635 | #endif |
---|
| 636 | |
---|
[1] | 637 | #else |
---|
| 638 | |
---|
| 639 | ! |
---|
| 640 | !-- Array bounds when running on a single PE (respectively a non-parallel |
---|
| 641 | !-- machine) |
---|
| 642 | nxl = 0 |
---|
| 643 | nxr = nx |
---|
| 644 | nxra = nx |
---|
| 645 | nnx = nxr - nxl + 1 |
---|
| 646 | nys = 0 |
---|
| 647 | nyn = ny |
---|
| 648 | nyna = ny |
---|
| 649 | nny = nyn - nys + 1 |
---|
| 650 | nzb = 0 |
---|
| 651 | nzt = nz |
---|
| 652 | nzta = nz |
---|
| 653 | nnz = nz |
---|
| 654 | |
---|
[145] | 655 | ALLOCATE( hor_index_bounds(4,0:0) ) |
---|
| 656 | hor_index_bounds(1,0) = nxl |
---|
| 657 | hor_index_bounds(2,0) = nxr |
---|
| 658 | hor_index_bounds(3,0) = nys |
---|
| 659 | hor_index_bounds(4,0) = nyn |
---|
| 660 | |
---|
[1] | 661 | ! |
---|
| 662 | !-- Array bounds for the pressure solver (in the parallel code, these bounds |
---|
| 663 | !-- are the ones for the transposed arrays) |
---|
| 664 | nys_x = nys |
---|
| 665 | nyn_x = nyn |
---|
| 666 | nyn_xa = nyn |
---|
| 667 | nzb_x = nzb + 1 |
---|
| 668 | nzt_x = nzt |
---|
| 669 | nzt_xa = nzt |
---|
| 670 | |
---|
| 671 | nxl_y = nxl |
---|
| 672 | nxr_y = nxr |
---|
| 673 | nxr_ya = nxr |
---|
| 674 | nzb_y = nzb + 1 |
---|
| 675 | nzt_y = nzt |
---|
| 676 | nzt_ya = nzt |
---|
| 677 | |
---|
| 678 | nxl_z = nxl |
---|
| 679 | nxr_z = nxr |
---|
| 680 | nxr_za = nxr |
---|
| 681 | nys_z = nys |
---|
| 682 | nyn_z = nyn |
---|
| 683 | nyn_za = nyn |
---|
| 684 | |
---|
| 685 | #endif |
---|
| 686 | |
---|
| 687 | ! |
---|
| 688 | !-- Calculate number of grid levels necessary for the multigrid poisson solver |
---|
| 689 | !-- as well as the gridpoint indices on each level |
---|
| 690 | IF ( psolver == 'multigrid' ) THEN |
---|
| 691 | |
---|
| 692 | ! |
---|
| 693 | !-- First calculate number of possible grid levels for the subdomains |
---|
| 694 | mg_levels_x = 1 |
---|
| 695 | mg_levels_y = 1 |
---|
| 696 | mg_levels_z = 1 |
---|
| 697 | |
---|
| 698 | i = nnx |
---|
| 699 | DO WHILE ( MOD( i, 2 ) == 0 .AND. i /= 2 ) |
---|
| 700 | i = i / 2 |
---|
| 701 | mg_levels_x = mg_levels_x + 1 |
---|
| 702 | ENDDO |
---|
| 703 | |
---|
| 704 | j = nny |
---|
| 705 | DO WHILE ( MOD( j, 2 ) == 0 .AND. j /= 2 ) |
---|
| 706 | j = j / 2 |
---|
| 707 | mg_levels_y = mg_levels_y + 1 |
---|
| 708 | ENDDO |
---|
| 709 | |
---|
[181] | 710 | k = nz ! do not use nnz because it might be > nz due to transposition |
---|
| 711 | ! requirements |
---|
[1] | 712 | DO WHILE ( MOD( k, 2 ) == 0 .AND. k /= 2 ) |
---|
| 713 | k = k / 2 |
---|
| 714 | mg_levels_z = mg_levels_z + 1 |
---|
| 715 | ENDDO |
---|
| 716 | |
---|
| 717 | maximum_grid_level = MIN( mg_levels_x, mg_levels_y, mg_levels_z ) |
---|
| 718 | |
---|
| 719 | ! |
---|
| 720 | !-- Find out, if the total domain allows more levels. These additional |
---|
| 721 | !-- levels are processed on PE0 only. |
---|
[197] | 722 | IF ( numprocs > 1 .AND. mg_switch_to_pe0_level /= -1 ) THEN |
---|
[1] | 723 | IF ( mg_levels_z > MIN( mg_levels_x, mg_levels_y ) ) THEN |
---|
| 724 | mg_switch_to_pe0_level_l = maximum_grid_level |
---|
| 725 | |
---|
| 726 | mg_levels_x = 1 |
---|
| 727 | mg_levels_y = 1 |
---|
| 728 | |
---|
| 729 | i = nx+1 |
---|
| 730 | DO WHILE ( MOD( i, 2 ) == 0 .AND. i /= 2 ) |
---|
| 731 | i = i / 2 |
---|
| 732 | mg_levels_x = mg_levels_x + 1 |
---|
| 733 | ENDDO |
---|
| 734 | |
---|
| 735 | j = ny+1 |
---|
| 736 | DO WHILE ( MOD( j, 2 ) == 0 .AND. j /= 2 ) |
---|
| 737 | j = j / 2 |
---|
| 738 | mg_levels_y = mg_levels_y + 1 |
---|
| 739 | ENDDO |
---|
| 740 | |
---|
| 741 | maximum_grid_level_l = MIN( mg_levels_x, mg_levels_y, mg_levels_z ) |
---|
| 742 | |
---|
| 743 | IF ( maximum_grid_level_l > mg_switch_to_pe0_level_l ) THEN |
---|
| 744 | mg_switch_to_pe0_level_l = maximum_grid_level_l - & |
---|
| 745 | mg_switch_to_pe0_level_l + 1 |
---|
| 746 | ELSE |
---|
| 747 | mg_switch_to_pe0_level_l = 0 |
---|
| 748 | ENDIF |
---|
| 749 | ELSE |
---|
| 750 | mg_switch_to_pe0_level_l = 0 |
---|
| 751 | maximum_grid_level_l = maximum_grid_level |
---|
| 752 | ENDIF |
---|
| 753 | |
---|
| 754 | ! |
---|
| 755 | !-- Use switch level calculated above only if it is not pre-defined |
---|
| 756 | !-- by user |
---|
| 757 | IF ( mg_switch_to_pe0_level == 0 ) THEN |
---|
| 758 | |
---|
| 759 | IF ( mg_switch_to_pe0_level_l /= 0 ) THEN |
---|
| 760 | mg_switch_to_pe0_level = mg_switch_to_pe0_level_l |
---|
| 761 | maximum_grid_level = maximum_grid_level_l |
---|
| 762 | ENDIF |
---|
| 763 | |
---|
| 764 | ELSE |
---|
| 765 | ! |
---|
| 766 | !-- Check pre-defined value and reset to default, if neccessary |
---|
| 767 | IF ( mg_switch_to_pe0_level < mg_switch_to_pe0_level_l .OR. & |
---|
| 768 | mg_switch_to_pe0_level >= maximum_grid_level_l ) THEN |
---|
| 769 | IF ( myid == 0 ) THEN |
---|
| 770 | PRINT*, '+++ WARNING init_pegrid: mg_switch_to_pe0_level ', & |
---|
| 771 | 'out of range and reset to default (=0)' |
---|
| 772 | ENDIF |
---|
| 773 | mg_switch_to_pe0_level = 0 |
---|
| 774 | ELSE |
---|
| 775 | ! |
---|
| 776 | !-- Use the largest number of possible levels anyway and recalculate |
---|
| 777 | !-- the switch level to this largest number of possible values |
---|
| 778 | maximum_grid_level = maximum_grid_level_l |
---|
| 779 | |
---|
| 780 | ENDIF |
---|
| 781 | ENDIF |
---|
| 782 | |
---|
| 783 | ENDIF |
---|
| 784 | |
---|
| 785 | ALLOCATE( grid_level_count(maximum_grid_level), & |
---|
| 786 | nxl_mg(maximum_grid_level), nxr_mg(maximum_grid_level), & |
---|
| 787 | nyn_mg(maximum_grid_level), nys_mg(maximum_grid_level), & |
---|
| 788 | nzt_mg(maximum_grid_level) ) |
---|
| 789 | |
---|
| 790 | grid_level_count = 0 |
---|
| 791 | nxl_l = nxl; nxr_l = nxr; nys_l = nys; nyn_l = nyn; nzt_l = nzt |
---|
| 792 | |
---|
| 793 | DO i = maximum_grid_level, 1 , -1 |
---|
| 794 | |
---|
| 795 | IF ( i == mg_switch_to_pe0_level ) THEN |
---|
| 796 | #if defined( __parallel ) |
---|
| 797 | ! |
---|
| 798 | !-- Save the grid size of the subdomain at the switch level, because |
---|
| 799 | !-- it is needed in poismg. |
---|
| 800 | !-- Array bounds of the local subdomain grids are gathered on PE0 |
---|
| 801 | ind(1) = nxl_l; ind(2) = nxr_l |
---|
| 802 | ind(3) = nys_l; ind(4) = nyn_l |
---|
| 803 | ind(5) = nzt_l |
---|
| 804 | ALLOCATE( ind_all(5*numprocs), mg_loc_ind(5,0:numprocs-1) ) |
---|
| 805 | CALL MPI_ALLGATHER( ind, 5, MPI_INTEGER, ind_all, 5, & |
---|
| 806 | MPI_INTEGER, comm2d, ierr ) |
---|
| 807 | DO j = 0, numprocs-1 |
---|
| 808 | DO k = 1, 5 |
---|
| 809 | mg_loc_ind(k,j) = ind_all(k+j*5) |
---|
| 810 | ENDDO |
---|
| 811 | ENDDO |
---|
| 812 | DEALLOCATE( ind_all ) |
---|
| 813 | ! |
---|
| 814 | !-- Calculate the grid size of the total domain gathered on PE0 |
---|
| 815 | nxr_l = ( nxr_l-nxl_l+1 ) * pdims(1) - 1 |
---|
| 816 | nxl_l = 0 |
---|
| 817 | nyn_l = ( nyn_l-nys_l+1 ) * pdims(2) - 1 |
---|
| 818 | nys_l = 0 |
---|
| 819 | ! |
---|
| 820 | !-- The size of this gathered array must not be larger than the |
---|
| 821 | !-- array tend, which is used in the multigrid scheme as a temporary |
---|
| 822 | !-- array |
---|
| 823 | subdomain_size = ( nxr - nxl + 3 ) * ( nyn - nys + 3 ) * & |
---|
| 824 | ( nzt - nzb + 2 ) |
---|
| 825 | gathered_size = ( nxr_l - nxl_l + 3 ) * ( nyn_l - nys_l + 3 ) * & |
---|
| 826 | ( nzt_l - nzb + 2 ) |
---|
| 827 | |
---|
| 828 | IF ( gathered_size > subdomain_size ) THEN |
---|
| 829 | IF ( myid == 0 ) THEN |
---|
| 830 | PRINT*, '+++ init_pegrid: not enough memory for storing ', & |
---|
| 831 | 'gathered multigrid data on PE0' |
---|
| 832 | ENDIF |
---|
| 833 | CALL local_stop |
---|
| 834 | ENDIF |
---|
| 835 | #else |
---|
| 836 | PRINT*, '+++ init_pegrid: multigrid gather/scatter impossible ', & |
---|
| 837 | 'in non parallel mode' |
---|
| 838 | CALL local_stop |
---|
| 839 | #endif |
---|
| 840 | ENDIF |
---|
| 841 | |
---|
| 842 | nxl_mg(i) = nxl_l |
---|
| 843 | nxr_mg(i) = nxr_l |
---|
| 844 | nys_mg(i) = nys_l |
---|
| 845 | nyn_mg(i) = nyn_l |
---|
| 846 | nzt_mg(i) = nzt_l |
---|
| 847 | |
---|
| 848 | nxl_l = nxl_l / 2 |
---|
| 849 | nxr_l = nxr_l / 2 |
---|
| 850 | nys_l = nys_l / 2 |
---|
| 851 | nyn_l = nyn_l / 2 |
---|
| 852 | nzt_l = nzt_l / 2 |
---|
| 853 | ENDDO |
---|
| 854 | |
---|
| 855 | ELSE |
---|
| 856 | |
---|
| 857 | maximum_grid_level = 1 |
---|
| 858 | |
---|
| 859 | ENDIF |
---|
| 860 | |
---|
| 861 | grid_level = maximum_grid_level |
---|
| 862 | |
---|
| 863 | #if defined( __parallel ) |
---|
| 864 | ! |
---|
| 865 | !-- Gridpoint number for the exchange of ghost points (y-line for 2D-arrays) |
---|
| 866 | ngp_y = nyn - nys + 1 |
---|
| 867 | |
---|
| 868 | ! |
---|
| 869 | !-- Define a new MPI derived datatype for the exchange of ghost points in |
---|
| 870 | !-- y-direction for 2D-arrays (line) |
---|
| 871 | CALL MPI_TYPE_VECTOR( nxr-nxl+3, 1, ngp_y+2, MPI_REAL, type_x, ierr ) |
---|
| 872 | CALL MPI_TYPE_COMMIT( type_x, ierr ) |
---|
| 873 | CALL MPI_TYPE_VECTOR( nxr-nxl+3, 1, ngp_y+2, MPI_INTEGER, type_x_int, ierr ) |
---|
| 874 | CALL MPI_TYPE_COMMIT( type_x_int, ierr ) |
---|
| 875 | |
---|
| 876 | ! |
---|
| 877 | !-- Calculate gridpoint numbers for the exchange of ghost points along x |
---|
| 878 | !-- (yz-plane for 3D-arrays) and define MPI derived data type(s) for the |
---|
| 879 | !-- exchange of ghost points in y-direction (xz-plane). |
---|
| 880 | !-- Do these calculations for the model grid and (if necessary) also |
---|
| 881 | !-- for the coarser grid levels used in the multigrid method |
---|
| 882 | ALLOCATE ( ngp_yz(maximum_grid_level), type_xz(maximum_grid_level) ) |
---|
| 883 | |
---|
| 884 | nxl_l = nxl; nxr_l = nxr; nys_l = nys; nyn_l = nyn; nzb_l = nzb; nzt_l = nzt |
---|
| 885 | |
---|
| 886 | DO i = maximum_grid_level, 1 , -1 |
---|
| 887 | ngp_yz(i) = (nzt_l - nzb_l + 2) * (nyn_l - nys_l + 3) |
---|
| 888 | |
---|
| 889 | CALL MPI_TYPE_VECTOR( nxr_l-nxl_l+3, nzt_l-nzb_l+2, ngp_yz(i), & |
---|
| 890 | MPI_REAL, type_xz(i), ierr ) |
---|
| 891 | CALL MPI_TYPE_COMMIT( type_xz(i), ierr ) |
---|
| 892 | |
---|
| 893 | nxl_l = nxl_l / 2 |
---|
| 894 | nxr_l = nxr_l / 2 |
---|
| 895 | nys_l = nys_l / 2 |
---|
| 896 | nyn_l = nyn_l / 2 |
---|
| 897 | nzt_l = nzt_l / 2 |
---|
| 898 | ENDDO |
---|
| 899 | #endif |
---|
| 900 | |
---|
| 901 | #if defined( __parallel ) |
---|
| 902 | ! |
---|
| 903 | !-- Setting of flags for inflow/outflow conditions in case of non-cyclic |
---|
[106] | 904 | !-- horizontal boundary conditions. |
---|
[1] | 905 | IF ( pleft == MPI_PROC_NULL ) THEN |
---|
[73] | 906 | IF ( bc_lr == 'dirichlet/radiation' ) THEN |
---|
[1] | 907 | inflow_l = .TRUE. |
---|
[73] | 908 | ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN |
---|
[1] | 909 | outflow_l = .TRUE. |
---|
| 910 | ENDIF |
---|
| 911 | ENDIF |
---|
| 912 | |
---|
| 913 | IF ( pright == MPI_PROC_NULL ) THEN |
---|
[73] | 914 | IF ( bc_lr == 'dirichlet/radiation' ) THEN |
---|
[1] | 915 | outflow_r = .TRUE. |
---|
[73] | 916 | ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN |
---|
[1] | 917 | inflow_r = .TRUE. |
---|
| 918 | ENDIF |
---|
| 919 | ENDIF |
---|
| 920 | |
---|
| 921 | IF ( psouth == MPI_PROC_NULL ) THEN |
---|
[73] | 922 | IF ( bc_ns == 'dirichlet/radiation' ) THEN |
---|
[1] | 923 | outflow_s = .TRUE. |
---|
[73] | 924 | ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN |
---|
[1] | 925 | inflow_s = .TRUE. |
---|
| 926 | ENDIF |
---|
| 927 | ENDIF |
---|
| 928 | |
---|
| 929 | IF ( pnorth == MPI_PROC_NULL ) THEN |
---|
[73] | 930 | IF ( bc_ns == 'dirichlet/radiation' ) THEN |
---|
[1] | 931 | inflow_n = .TRUE. |
---|
[73] | 932 | ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN |
---|
[1] | 933 | outflow_n = .TRUE. |
---|
| 934 | ENDIF |
---|
| 935 | ENDIF |
---|
| 936 | |
---|
[151] | 937 | ! |
---|
| 938 | !-- Broadcast the id of the inflow PE |
---|
| 939 | IF ( inflow_l ) THEN |
---|
[163] | 940 | id_inflow_l = myidx |
---|
[151] | 941 | ELSE |
---|
| 942 | id_inflow_l = 0 |
---|
| 943 | ENDIF |
---|
| 944 | CALL MPI_ALLREDUCE( id_inflow_l, id_inflow, 1, MPI_INTEGER, MPI_SUM, & |
---|
| 945 | comm1dx, ierr ) |
---|
| 946 | |
---|
[163] | 947 | ! |
---|
| 948 | !-- Broadcast the id of the recycling plane |
---|
| 949 | !-- WARNING: needs to be adjusted in case of inflows other than from left side! |
---|
| 950 | IF ( ( recycling_width / dx ) >= nxl .AND. ( recycling_width / dx ) <= nxr ) & |
---|
| 951 | THEN |
---|
| 952 | id_recycling_l = myidx |
---|
| 953 | ELSE |
---|
| 954 | id_recycling_l = 0 |
---|
| 955 | ENDIF |
---|
| 956 | CALL MPI_ALLREDUCE( id_recycling_l, id_recycling, 1, MPI_INTEGER, MPI_SUM, & |
---|
| 957 | comm1dx, ierr ) |
---|
| 958 | |
---|
[1] | 959 | #else |
---|
[73] | 960 | IF ( bc_lr == 'dirichlet/radiation' ) THEN |
---|
[1] | 961 | inflow_l = .TRUE. |
---|
| 962 | outflow_r = .TRUE. |
---|
[73] | 963 | ELSEIF ( bc_lr == 'radiation/dirichlet' ) THEN |
---|
[1] | 964 | outflow_l = .TRUE. |
---|
| 965 | inflow_r = .TRUE. |
---|
| 966 | ENDIF |
---|
| 967 | |
---|
[73] | 968 | IF ( bc_ns == 'dirichlet/radiation' ) THEN |
---|
[1] | 969 | inflow_n = .TRUE. |
---|
| 970 | outflow_s = .TRUE. |
---|
[73] | 971 | ELSEIF ( bc_ns == 'radiation/dirichlet' ) THEN |
---|
[1] | 972 | outflow_n = .TRUE. |
---|
| 973 | inflow_s = .TRUE. |
---|
| 974 | ENDIF |
---|
| 975 | #endif |
---|
[106] | 976 | ! |
---|
[110] | 977 | !-- At the outflow, u or v, respectively, have to be calculated for one more |
---|
| 978 | !-- grid point. |
---|
[106] | 979 | IF ( outflow_l ) THEN |
---|
| 980 | nxlu = nxl + 1 |
---|
| 981 | ELSE |
---|
| 982 | nxlu = nxl |
---|
| 983 | ENDIF |
---|
| 984 | IF ( outflow_s ) THEN |
---|
| 985 | nysv = nys + 1 |
---|
| 986 | ELSE |
---|
| 987 | nysv = nys |
---|
| 988 | ENDIF |
---|
[1] | 989 | |
---|
| 990 | IF ( psolver == 'poisfft_hybrid' ) THEN |
---|
| 991 | CALL poisfft_hybrid_ini |
---|
[75] | 992 | ELSEIF ( psolver == 'poisfft' ) THEN |
---|
[1] | 993 | CALL poisfft_init |
---|
| 994 | ENDIF |
---|
| 995 | |
---|
[114] | 996 | ! |
---|
| 997 | !-- Allocate wall flag arrays used in the multigrid solver |
---|
| 998 | IF ( psolver == 'multigrid' ) THEN |
---|
| 999 | |
---|
| 1000 | DO i = maximum_grid_level, 1, -1 |
---|
| 1001 | |
---|
| 1002 | SELECT CASE ( i ) |
---|
| 1003 | |
---|
| 1004 | CASE ( 1 ) |
---|
| 1005 | ALLOCATE( wall_flags_1(nzb:nzt_mg(i)+1, & |
---|
| 1006 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1007 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1008 | |
---|
| 1009 | CASE ( 2 ) |
---|
| 1010 | ALLOCATE( wall_flags_2(nzb:nzt_mg(i)+1, & |
---|
| 1011 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1012 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1013 | |
---|
| 1014 | CASE ( 3 ) |
---|
| 1015 | ALLOCATE( wall_flags_3(nzb:nzt_mg(i)+1, & |
---|
| 1016 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1017 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1018 | |
---|
| 1019 | CASE ( 4 ) |
---|
| 1020 | ALLOCATE( wall_flags_4(nzb:nzt_mg(i)+1, & |
---|
| 1021 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1022 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1023 | |
---|
| 1024 | CASE ( 5 ) |
---|
| 1025 | ALLOCATE( wall_flags_5(nzb:nzt_mg(i)+1, & |
---|
| 1026 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1027 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1028 | |
---|
| 1029 | CASE ( 6 ) |
---|
| 1030 | ALLOCATE( wall_flags_6(nzb:nzt_mg(i)+1, & |
---|
| 1031 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1032 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1033 | |
---|
| 1034 | CASE ( 7 ) |
---|
| 1035 | ALLOCATE( wall_flags_7(nzb:nzt_mg(i)+1, & |
---|
| 1036 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1037 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1038 | |
---|
| 1039 | CASE ( 8 ) |
---|
| 1040 | ALLOCATE( wall_flags_8(nzb:nzt_mg(i)+1, & |
---|
| 1041 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1042 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1043 | |
---|
| 1044 | CASE ( 9 ) |
---|
| 1045 | ALLOCATE( wall_flags_9(nzb:nzt_mg(i)+1, & |
---|
| 1046 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1047 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1048 | |
---|
| 1049 | CASE ( 10 ) |
---|
| 1050 | ALLOCATE( wall_flags_10(nzb:nzt_mg(i)+1, & |
---|
| 1051 | nys_mg(i)-1:nyn_mg(i)+1, & |
---|
| 1052 | nxl_mg(i)-1:nxr_mg(i)+1) ) |
---|
| 1053 | |
---|
| 1054 | CASE DEFAULT |
---|
| 1055 | IF ( myid == 0 ) PRINT*, '+++ init_pegrid: more than 10 ', & |
---|
| 1056 | ' multigrid levels' |
---|
| 1057 | CALL local_stop |
---|
| 1058 | |
---|
| 1059 | END SELECT |
---|
| 1060 | |
---|
| 1061 | ENDDO |
---|
| 1062 | |
---|
| 1063 | ENDIF |
---|
| 1064 | |
---|
[1] | 1065 | END SUBROUTINE init_pegrid |
---|