[4534] | 1 | !> @file shared_memory_io_mod.f90 |
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[4591] | 2 | !--------------------------------------------------------------------------------------------------! |
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| 3 | ! This file is part of the PALM model system. |
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[4534] | 4 | ! |
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[4591] | 5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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| 6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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| 7 | ! (at your option) any later version. |
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[4534] | 8 | ! |
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[4591] | 9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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| 10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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| 11 | ! Public License for more details. |
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[4534] | 12 | ! |
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[4591] | 13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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| 14 | ! <http://www.gnu.org/licenses/>. |
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[4534] | 15 | ! |
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| 16 | ! Copyright 1997-2020 Leibniz Universitaet Hannover |
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[4591] | 17 | !--------------------------------------------------------------------------------------------------! |
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[4534] | 18 | ! |
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[4591] | 19 | ! |
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[4534] | 20 | ! Current revisions: |
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| 21 | ! ----------------- |
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[4591] | 22 | ! |
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| 23 | ! |
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[4534] | 24 | ! Former revisions: |
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| 25 | ! $Id: shared_memory_io_mod.f90 4617 2020-07-22 09:48:50Z raasch $ |
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| 26 | ! |
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[4617] | 27 | ! Additions for cyclic fill mode |
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| 28 | ! |
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| 29 | ! |
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[4591] | 30 | ! File re-formatted to follow the PALM coding standard |
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[4534] | 31 | ! |
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[4591] | 32 | ! |
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| 33 | ! Initial version (Klaus Ketelsen) |
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[4534] | 34 | ! |
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[4591] | 35 | ! |
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| 36 | ! |
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[4534] | 37 | ! Description: |
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| 38 | ! ------------ |
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[4591] | 39 | !> Handle MPI-IO or NetCDF-IO shared memory arrays. |
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| 40 | !> This module performs the organization of new communicators, adapted PE-grids and allocation of |
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| 41 | !> shared memory arrays. The IO itself is not done here. |
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| 42 | !--------------------------------------------------------------------------------------------------! |
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[4534] | 43 | MODULE shared_memory_io_mod |
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| 44 | |
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| 45 | #if defined( __parallel ) |
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| 46 | #if defined( __mpifh ) |
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| 47 | INCLUDE "mpif.h" |
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| 48 | #else |
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| 49 | USE MPI |
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| 50 | #endif |
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| 51 | #endif |
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| 52 | |
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| 53 | USE, INTRINSIC :: ISO_C_BINDING |
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| 54 | |
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| 55 | USE control_parameters, & |
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[4591] | 56 | ONLY: maximum_grid_level, & |
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| 57 | message_string, & |
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| 58 | mg_switch_to_pe0_level |
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[4534] | 59 | |
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[4591] | 60 | |
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[4534] | 61 | USE indices, & |
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[4591] | 62 | ONLY: nbgp, & |
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| 63 | nnx, & |
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| 64 | nny, & |
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| 65 | nnz, & |
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| 66 | nx, & |
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| 67 | nxl, & |
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| 68 | nxlg, & |
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| 69 | nxr, & |
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| 70 | nxrg, & |
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| 71 | ny, & |
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| 72 | nyn, & |
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| 73 | nyng, & |
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| 74 | nys, & |
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| 75 | nysg, & |
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| 76 | nzb, & |
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| 77 | nzt |
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[4534] | 78 | |
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| 79 | USE kinds, & |
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[4617] | 80 | ONLY: dp, & |
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| 81 | iwp, & |
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| 82 | sp, & |
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[4591] | 83 | wp |
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[4534] | 84 | |
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| 85 | USE pegrid, & |
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[4591] | 86 | ONLY: comm1dx, & |
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| 87 | comm1dy, & |
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| 88 | comm2d, & |
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| 89 | ierr, & |
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| 90 | myid, & |
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| 91 | myidx, & |
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| 92 | myidy, & |
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| 93 | npex, & |
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| 94 | npey, & |
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| 95 | numprocs, & |
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| 96 | pdims, & |
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| 97 | pleft, & |
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| 98 | pnorth, & |
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| 99 | pright, & |
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| 100 | psouth, & |
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| 101 | sendrecvcount_xy |
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| 102 | |
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[4534] | 103 | #if defined( __parallel ) |
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| 104 | USE pegrid, & |
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[4591] | 105 | ONLY: pcoord, & |
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| 106 | reorder |
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[4534] | 107 | #endif |
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| 108 | |
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| 109 | IMPLICIT NONE |
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| 110 | |
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| 111 | PRIVATE |
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| 112 | |
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| 113 | SAVE |
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| 114 | |
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| 115 | ! |
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[4617] | 116 | !-- Type to store information about the domain decomposition grid |
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| 117 | TYPE, PUBLIC :: domain_decomposition_grid_features !< |
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[4534] | 118 | |
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[4617] | 119 | INTEGER(iwp) :: comm2d !< |
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| 120 | INTEGER(iwp) :: myid !< |
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| 121 | INTEGER(iwp) :: nnx !< |
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| 122 | INTEGER(iwp) :: nny !< |
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| 123 | INTEGER(iwp) :: nx !< |
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| 124 | INTEGER(iwp) :: nxl !< |
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| 125 | INTEGER(iwp) :: nxr !< |
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| 126 | INTEGER(iwp) :: ny !< |
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| 127 | INTEGER(iwp) :: nyn !< |
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| 128 | INTEGER(iwp) :: nys !< |
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| 129 | INTEGER(iwp) :: numprocs !< |
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[4534] | 130 | |
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[4617] | 131 | CONTAINS |
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[4591] | 132 | |
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[4617] | 133 | PROCEDURE, PASS(this), PUBLIC :: activate_grid_from_this_class |
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| 134 | PROCEDURE, PASS(this), PUBLIC :: save_grid_into_this_class |
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[4591] | 135 | |
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[4617] | 136 | END TYPE domain_decomposition_grid_features |
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[4591] | 137 | |
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[4534] | 138 | ! |
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| 139 | !-- Class definition for shared memory instances. |
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| 140 | !-- For every use of shared memory IO, one instance of this class is created. |
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[4591] | 141 | TYPE, PUBLIC :: sm_class !< |
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[4534] | 142 | |
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[4591] | 143 | INTEGER(iwp) :: nr_io_pe_per_node = 2 !< typical configuration, 2 sockets per node |
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| 144 | LOGICAL :: no_shared_Memory_in_this_run !< |
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[4617] | 145 | |
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| 146 | INTEGER(iwp) :: comm_model !< communicator of this model run |
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[4534] | 147 | ! |
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| 148 | !-- Variables for the shared memory communicator |
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[4617] | 149 | INTEGER(iwp), PUBLIC :: comm_shared !< communicator for processes with shared array |
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[4591] | 150 | INTEGER(iwp), PUBLIC :: sh_npes !< |
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| 151 | INTEGER(iwp), PUBLIC :: sh_rank !< |
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[4534] | 152 | |
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| 153 | LOGICAL, PUBLIC :: iam_io_pe = .TRUE. !< This PE is an IO-PE |
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| 154 | ! |
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| 155 | !-- Variables for the I/O virtual grid |
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[4591] | 156 | INTEGER(iwp), PUBLIC :: comm_io !< Communicator for all IO processes |
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| 157 | INTEGER(iwp), PUBLIC :: io_npes !< |
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| 158 | INTEGER(iwp), PUBLIC :: io_rank !< |
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[4534] | 159 | ! |
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| 160 | !-- Variables for the node local communicator |
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[4591] | 161 | INTEGER(iwp) :: comm_node !< Communicator for all processes of current node |
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| 162 | INTEGER(iwp) :: io_pe_global_rank !< |
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| 163 | INTEGER(iwp) :: n_npes !< |
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| 164 | INTEGER(iwp) :: n_rank !< |
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[4534] | 165 | |
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[4617] | 166 | TYPE(domain_decomposition_grid_features), PUBLIC :: io_grid !< io grid features, depending on reading from prerun or restart run |
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[4534] | 167 | |
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| 168 | |
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[4617] | 169 | CONTAINS |
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| 170 | |
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| 171 | PRIVATE |
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| 172 | |
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| 173 | PROCEDURE, PASS(this), PUBLIC :: is_sm_active |
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| 174 | PROCEDURE, PASS(this), PUBLIC :: sm_adjust_outer_boundary |
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| 175 | PROCEDURE, PASS(this), PUBLIC :: sm_free_shared |
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| 176 | PROCEDURE, PASS(this), PUBLIC :: sm_init_comm |
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| 177 | PROCEDURE, PASS(this), PUBLIC :: sm_init_part |
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| 178 | PROCEDURE, PASS(this), PUBLIC :: sm_node_barrier |
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[4534] | 179 | #if defined( __parallel ) |
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[4617] | 180 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_1d_64 |
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| 181 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_1d_32 |
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| 182 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_1di |
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| 183 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_2d_64 |
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| 184 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_2d_32 |
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| 185 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_2di |
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| 186 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_3d_64 |
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| 187 | PROCEDURE, PASS(this), PUBLIC :: sm_allocate_shared_3d_32 |
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[4534] | 188 | |
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[4617] | 189 | GENERIC, PUBLIC :: sm_allocate_shared => & |
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| 190 | sm_allocate_shared_1d_64, sm_allocate_shared_1d_32, & |
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| 191 | sm_allocate_shared_2d_64, sm_allocate_shared_2d_32, & |
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| 192 | sm_allocate_shared_2di, sm_allocate_shared_3d_64, & |
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| 193 | sm_allocate_shared_3d_32, sm_allocate_shared_1di |
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[4534] | 194 | #endif |
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| 195 | END TYPE sm_class |
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| 196 | |
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| 197 | |
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[4591] | 198 | CONTAINS |
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[4534] | 199 | |
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| 200 | |
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| 201 | !--------------------------------------------------------------------------------------------------! |
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| 202 | ! Description: |
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| 203 | ! ------------ |
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| 204 | !> Create the communicator for shared memory groups and IO-PEs. |
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| 205 | !> Setup the grid for shared memory IO. |
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| 206 | !--------------------------------------------------------------------------------------------------! |
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[4617] | 207 | SUBROUTINE sm_init_comm( this, sm_active, comm_input ) |
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[4534] | 208 | |
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| 209 | IMPLICIT NONE |
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| 210 | |
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[4617] | 211 | CLASS(sm_class), INTENT(INOUT) :: this !< pointer to access internal variables of this call |
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| 212 | INTEGER, INTENT(IN), OPTIONAL :: comm_input !< main model communicator (comm2d) can optional be set |
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[4534] | 213 | |
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| 214 | #if defined( __parallel ) |
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[4617] | 215 | INTEGER :: color |
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| 216 | INTEGER :: max_n_npes !< maximum number of PEs/node |
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[4534] | 217 | #endif |
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| 218 | |
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[4617] | 219 | LOGICAL, INTENT(IN) :: sm_active !< flag to activate shared-memory IO |
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[4534] | 220 | |
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[4617] | 221 | IF ( PRESENT( comm_input ) ) THEN |
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| 222 | this%comm_model = comm_input |
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| 223 | ELSE |
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| 224 | this%comm_model = comm2d |
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| 225 | ENDIF |
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[4534] | 226 | |
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| 227 | this%no_shared_memory_in_this_run = .NOT. sm_active |
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[4617] | 228 | this%comm_io = this%comm_model ! preset in case of non shared-memory-IO |
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[4534] | 229 | |
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| 230 | IF ( this%no_shared_memory_in_this_run ) THEN |
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| 231 | this%iam_io_pe = .TRUE. |
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| 232 | RETURN |
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| 233 | ENDIF |
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| 234 | |
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| 235 | #if defined( __parallel ) |
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| 236 | ! |
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| 237 | !-- Determine, how many MPI threads are running on a node |
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| 238 | this%iam_io_pe = .FALSE. |
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[4617] | 239 | CALL MPI_COMM_SPLIT_TYPE( this%comm_model, MPI_COMM_TYPE_SHARED, 0, MPI_INFO_NULL, & |
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| 240 | this%comm_node, ierr ) |
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[4534] | 241 | CALL MPI_COMM_SIZE( this%comm_node, this%n_npes, ierr ) |
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| 242 | CALL MPI_COMM_RANK( this%comm_node, this%n_rank, ierr ) |
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| 243 | |
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[4617] | 244 | CALL MPI_ALLREDUCE( this%n_npes, max_n_npes, 1, MPI_INTEGER, MPI_MAX, this%comm_model, ierr ) |
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[4534] | 245 | ! |
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| 246 | !-- Decide, if the configuration can run with shared-memory IO |
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| 247 | IF ( max_n_npes > 64 ) THEN |
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| 248 | ! |
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| 249 | !-- Special configuration on the HLRN-IV system with 4 shared memory blocks/node |
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| 250 | this%nr_io_pe_per_node = 4 |
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| 251 | |
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| 252 | ELSEIF ( max_n_npes <= 32 ) THEN |
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| 253 | ! |
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| 254 | !-- No shared memory IO with less than 32 threads/node |
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| 255 | this%no_shared_memory_in_this_run = .TRUE. |
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| 256 | this%iam_io_pe = .TRUE. |
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| 257 | RETURN |
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| 258 | ENDIF |
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| 259 | |
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| 260 | ! |
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| 261 | !-- No shared memory IO with small setups |
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| 262 | IF ( nx < 24 .OR. ny < 24 ) THEN |
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| 263 | this%no_shared_memory_in_this_run = .TRUE. |
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| 264 | this%iam_io_pe = .TRUE. |
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| 265 | RETURN |
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| 266 | ENDIF |
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| 267 | |
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| 268 | ! |
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| 269 | !-- Divide a node into shared memory groups, depending on the virtual x-y grid |
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| 270 | CALL compute_color( color ) |
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| 271 | ! |
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| 272 | !-- If no shared memory IO possible, nothing is left to be done here. |
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| 273 | IF ( this%no_shared_memory_in_this_run ) RETURN |
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| 274 | |
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| 275 | ! |
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| 276 | !-- Setup the shared memory area |
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| 277 | CALL MPI_COMM_SPLIT( this%comm_node, color, 0, this%comm_shared, ierr ) |
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| 278 | CALL MPI_COMM_SIZE( this%comm_shared, this%sh_npes, ierr ) |
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| 279 | CALL MPI_COMM_RANK( this%comm_shared, this%sh_rank, ierr ) |
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| 280 | |
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| 281 | ! |
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| 282 | !-- Setup the communicator across the nodes depending on the shared memory rank. |
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| 283 | !-- All threads with shared memory rank 0 will be I/O threads. |
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| 284 | color = this%sh_rank |
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[4617] | 285 | CALL MPI_COMM_SPLIT( this%comm_model, color, 0, this%comm_io, ierr ) |
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[4534] | 286 | |
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| 287 | IF ( this%comm_io /= MPI_COMM_NULL ) THEN |
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| 288 | CALL MPI_COMM_SIZE( this%comm_io, this%io_npes, ierr ) |
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| 289 | CALL MPI_COMM_RANK( this%comm_io, this%io_rank, ierr ) |
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| 290 | ELSE |
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| 291 | this%io_npes = -1 |
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| 292 | this%io_rank = -1 |
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| 293 | ENDIF |
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| 294 | |
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| 295 | IF ( this%sh_rank == 0 ) THEN |
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| 296 | this%iam_io_pe = .TRUE. |
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| 297 | this%io_pe_global_rank = myid |
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| 298 | ENDIF |
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| 299 | CALL MPI_BCAST( this%io_pe_global_rank, 1, MPI_INTEGER, 0, this%comm_shared, ierr ) |
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| 300 | |
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| 301 | #else |
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| 302 | this%iam_io_pe = .TRUE. |
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| 303 | #endif |
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| 304 | |
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[4617] | 305 | ! write(9,'(a,8i7)') ' end of sm_init_comm ',this%sh_rank,this%sh_npes,this%io_rank,this%io_npes,this%io_pe_global_rank |
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| 306 | ! write(9,*) 'This process is IO Process ',this%iam_io_pe |
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| 307 | |
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[4534] | 308 | #if defined( __parallel ) |
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| 309 | CONTAINS |
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| 310 | |
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| 311 | SUBROUTINE compute_color( color ) |
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| 312 | |
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| 313 | IMPLICIT NONE |
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| 314 | |
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[4591] | 315 | INTEGER(iwp), INTENT(OUT) :: color !< |
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[4534] | 316 | |
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[4591] | 317 | INTEGER(iwp) :: group_start !< |
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| 318 | INTEGER(iwp) :: my_color !< |
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| 319 | INTEGER(iwp) :: n !< |
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| 320 | INTEGER(iwp) :: pe !< |
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| 321 | INTEGER(iwp) :: sh_group_size !< |
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[4534] | 322 | |
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[4591] | 323 | INTEGER(iwp), DIMENSION(4,0:this%n_npes-1) :: local_dim_s !< |
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| 324 | INTEGER(iwp), DIMENSION(4,0:this%n_npes-1) :: local_dim_r !< |
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[4534] | 325 | |
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[4617] | 326 | TYPE(domain_decomposition_grid_features), DIMENSION(32) :: node_grid !< |
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[4534] | 327 | |
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[4536] | 328 | ! |
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[4591] | 329 | !-- No shared memory I/O on one node jobs |
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[4536] | 330 | IF ( numprocs < this%n_npes ) THEN |
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| 331 | this%no_shared_memory_in_this_run = .TRUE. |
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[4534] | 332 | RETURN |
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| 333 | ENDIF |
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| 334 | |
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| 335 | local_dim_s = 0 |
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| 336 | local_dim_s(1,this%n_rank) = nxl |
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| 337 | local_dim_s(2,this%n_rank) = nxr |
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| 338 | local_dim_s(3,this%n_rank) = nys |
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| 339 | local_dim_s(4,this%n_rank) = nyn |
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| 340 | |
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| 341 | node_grid%nyn = -1 |
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| 342 | ! |
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| 343 | !-- Distribute the x-y layout of all cores of a node to all node processes |
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| 344 | CALL MPI_ALLREDUCE( local_dim_s, local_dim_r, SIZE( local_dim_s ), MPI_INTEGER, MPI_SUM, & |
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| 345 | this%comm_node, ierr ) |
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| 346 | sh_group_size = ( max_n_npes + this%nr_io_pe_per_node - 1 ) / this%nr_io_pe_per_node |
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| 347 | |
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| 348 | pe = 0 |
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| 349 | my_color = 1 ! color is used to split the shared memory communicator into a communicator for |
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| 350 | ! io groups |
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| 351 | group_start = pe |
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| 352 | node_grid(my_color)%nxl = local_dim_r(1,group_start) |
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| 353 | node_grid(my_color)%nxr = local_dim_r(2,group_start) |
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| 354 | node_grid(my_color)%nys = local_dim_r(3,group_start) |
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| 355 | |
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| 356 | DO n = 1, this%n_npes-1 |
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| 357 | |
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| 358 | pe = n |
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| 359 | IF ( n > 0 .AND. MOD( n,sh_group_size ) == 0 ) THEN |
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| 360 | ! |
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| 361 | !-- If group boundary, start new IO group |
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| 362 | node_grid(my_color)%nyn = local_dim_r(4,pe-1) |
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| 363 | my_color = my_color + 1 |
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| 364 | group_start = pe |
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| 365 | node_grid(my_color)%nxl = local_dim_r(1,group_start) |
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| 366 | node_grid(my_color)%nxr = local_dim_r(2,group_start) |
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| 367 | node_grid(my_color)%nys = local_dim_r(3,group_start) |
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| 368 | |
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| 369 | ELSEIF ( local_dim_r(1,pe) /= node_grid(my_color)%nxl ) THEN |
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| 370 | ! |
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| 371 | !-- If nxl changes, start new IO group |
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| 372 | node_grid(my_color)%nyn = local_dim_r(4,pe-1) |
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| 373 | my_color = my_color+1 |
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| 374 | group_start = pe |
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| 375 | node_grid(my_color)%nxl = local_dim_r(1,group_start) |
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| 376 | node_grid(my_color)%nxr = local_dim_r(2,group_start) |
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| 377 | node_grid(my_color)%nys = local_dim_r(3,group_start) |
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| 378 | ENDIF |
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| 379 | ! |
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| 380 | !-- Save values for local PE |
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| 381 | IF ( this%n_rank == pe ) THEN ! |
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| 382 | color = my_color |
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| 383 | ENDIF |
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| 384 | IF ( n == this%n_npes-1 ) node_grid(my_color)%nyn = local_dim_r(4,pe) |
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| 385 | |
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| 386 | ENDDO |
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| 387 | |
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| 388 | IF ( this%n_rank == 0 ) THEN |
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| 389 | color = 1 |
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| 390 | ENDIF |
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| 391 | |
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[4536] | 392 | this%io_grid = node_grid(color) |
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| 393 | this%io_grid%nnx = this%io_grid%nxr - this%io_grid%nxl + 1 |
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| 394 | this%io_grid%nny = this%io_grid%nyn - this%io_grid%nys + 1 |
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| 395 | |
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[4534] | 396 | END SUBROUTINE compute_color |
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| 397 | #endif |
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| 398 | |
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| 399 | END SUBROUTINE sm_init_comm |
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| 400 | |
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| 401 | |
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[4617] | 402 | ! |
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| 403 | !-- TODO: short description required, about the meaning of the following routine |
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| 404 | !-- part must be renamed particles! |
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| 405 | SUBROUTINE sm_init_part( this ) |
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[4534] | 406 | |
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[4617] | 407 | IMPLICIT NONE |
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| 408 | |
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| 409 | CLASS(sm_class), INTENT(INOUT) :: this !< pointer to access internal variables of this call |
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| 410 | |
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| 411 | #if defined( __parallel ) |
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| 412 | INTEGER(iwp) :: color !< |
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| 413 | INTEGER(iwp) :: comm_shared_base !< |
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| 414 | INTEGER(iwp) :: ierr !< |
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| 415 | INTEGER(iwp) :: max_n_npes !< maximum number of PEs/node |
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| 416 | |
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| 417 | LOGICAL :: sm_active !< |
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| 418 | #endif |
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| 419 | |
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| 420 | |
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| 421 | sm_active = .TRUE. ! particle IO always uses shared memory |
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| 422 | this%comm_model = comm2d |
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| 423 | |
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| 424 | this%no_shared_memory_in_this_run = .NOT. sm_active |
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| 425 | this%comm_io = this%comm_model ! preset in case of non shared-memory-IO |
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| 426 | |
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| 427 | IF ( this%no_shared_memory_in_this_run ) THEN |
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| 428 | this%iam_io_pe = .TRUE. |
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| 429 | RETURN |
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| 430 | ENDIF |
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| 431 | |
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| 432 | #if defined( __parallel ) |
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| 433 | ! |
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| 434 | !-- Determine, how many MPI threads are running on a node |
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| 435 | this%iam_io_pe = .FALSE. |
---|
| 436 | CALL MPI_COMM_SPLIT_TYPE( this%comm_model, MPI_COMM_TYPE_SHARED, 0, MPI_INFO_NULL, & |
---|
| 437 | this%comm_node, ierr ) |
---|
| 438 | CALL MPI_COMM_SIZE( this%comm_node, this%n_npes, ierr ) |
---|
| 439 | CALL MPI_COMM_RANK( this%comm_node, this%n_rank, ierr ) |
---|
| 440 | |
---|
| 441 | CALL MPI_ALLREDUCE( this%n_npes, max_n_npes, 1, MPI_INTEGER, MPI_MAX, this%comm_model, ierr ) |
---|
| 442 | |
---|
| 443 | ! |
---|
| 444 | !-- TODO: better explanation |
---|
| 445 | !-- It has to be testet, if using memory blocks for an IO process (MPI shared Memory), or if it is |
---|
| 446 | !-- even better to use the complete node for MPI shared memory (this%nr_io_pe_per_node = 1). |
---|
| 447 | !- In the latter case, the access to the MPI shared memory buffer is slower, the number of |
---|
| 448 | !-- particles to move between threads will be much smaller. |
---|
| 449 | IF ( max_n_npes > 64 ) THEN |
---|
| 450 | ! |
---|
| 451 | !-- Special configuration on the HLRN-IV system with 4 shared memory blocks/node |
---|
| 452 | this%nr_io_pe_per_node = 4 |
---|
| 453 | ENDIF |
---|
| 454 | |
---|
| 455 | IF ( this%nr_io_pe_per_node == 1 ) THEN |
---|
| 456 | ! |
---|
| 457 | !-- This branch is not realized so far |
---|
| 458 | this%iam_io_pe = ( this%n_rank == 0 ) |
---|
| 459 | this%comm_shared = this%comm_node |
---|
| 460 | CALL MPI_COMM_SIZE( this%comm_shared, this%sh_npes, ierr ) |
---|
| 461 | CALL MPI_COMM_RANK( this%comm_shared, this%sh_rank, ierr ) |
---|
| 462 | |
---|
| 463 | ELSEIF( this%nr_io_pe_per_node == 2 ) THEN |
---|
| 464 | |
---|
| 465 | this%iam_io_pe = ( this%n_rank == 0 .OR. this%n_rank == this%n_npes/2 ) |
---|
| 466 | IF ( this%n_rank < this%n_npes/2 ) THEN |
---|
| 467 | color = 1 |
---|
| 468 | ELSE |
---|
| 469 | color = 2 |
---|
| 470 | ENDIF |
---|
| 471 | CALL MPI_COMM_SPLIT( this%comm_node, color, 0, this%comm_shared, ierr ) |
---|
| 472 | CALL MPI_COMM_SIZE( this%comm_shared, this%sh_npes, ierr ) |
---|
| 473 | CALL MPI_COMM_RANK( this%comm_shared, this%sh_rank, ierr ) |
---|
| 474 | |
---|
| 475 | ELSEIF( this%nr_io_pe_per_node == 4 ) THEN |
---|
| 476 | |
---|
| 477 | this%iam_io_pe = ( this%n_rank == 0 .OR. this%n_rank == this%n_npes/4 .OR. & |
---|
| 478 | this%n_rank == this%n_npes/2 .OR. this%n_rank == (3*this%n_npes)/4 ) |
---|
| 479 | IF ( this%n_rank < this%n_npes/4 ) THEN |
---|
| 480 | color = 1 |
---|
| 481 | ELSEIF( this%n_rank < this%n_npes/2 ) THEN |
---|
| 482 | color = 2 |
---|
| 483 | ELSEIF( this%n_rank < (3*this%n_npes)/4 ) THEN |
---|
| 484 | color = 3 |
---|
| 485 | ELSE |
---|
| 486 | color = 4 |
---|
| 487 | ENDIF |
---|
| 488 | CALL MPI_COMM_SPLIT( this%comm_node, color, 0, this%comm_shared, ierr ) |
---|
| 489 | CALL MPI_COMM_SIZE( this%comm_shared, this%sh_npes, ierr ) |
---|
| 490 | CALL MPI_COMM_RANK( this%comm_shared, this%sh_rank, ierr ) |
---|
| 491 | |
---|
| 492 | ELSE |
---|
| 493 | |
---|
| 494 | WRITE( *, * ) 'shared_memory_io_mod: internal error' |
---|
| 495 | WRITE( *, * ) 'only 2 or 4 shared memory groups per node are allowed' |
---|
| 496 | STOP |
---|
| 497 | |
---|
| 498 | ENDIF |
---|
| 499 | |
---|
| 500 | ! |
---|
| 501 | !-- Setup the shared memory area |
---|
| 502 | CALL MPI_COMM_SPLIT( this%comm_node, color, 0, this%comm_shared, ierr ) |
---|
| 503 | CALL MPI_COMM_SIZE( this%comm_shared, this%sh_npes, ierr ) |
---|
| 504 | CALL MPI_COMM_RANK( this%comm_shared, this%sh_rank, ierr ) |
---|
| 505 | |
---|
| 506 | ! |
---|
| 507 | !-- Setup the communicator across the nodes depending on the shared memory rank. |
---|
| 508 | !-- All threads with shared memory rank 0 will be I/O threads. |
---|
| 509 | color = this%sh_rank |
---|
| 510 | CALL MPI_COMM_SPLIT( this%comm_model, color, 0, this%comm_io, ierr ) |
---|
| 511 | |
---|
| 512 | IF ( this%comm_io /= MPI_COMM_NULL ) THEN |
---|
| 513 | CALL MPI_COMM_SIZE( this%comm_io, this%io_npes, ierr ) |
---|
| 514 | CALL MPI_COMM_RANK( this%comm_io, this%io_rank, ierr ) |
---|
| 515 | ELSE |
---|
| 516 | this%io_npes = -1 |
---|
| 517 | this%io_rank = -1 |
---|
| 518 | ENDIF |
---|
| 519 | |
---|
| 520 | IF ( this%sh_rank == 0 ) THEN |
---|
| 521 | this%iam_io_pe = .TRUE. |
---|
| 522 | this%io_pe_global_rank = myid |
---|
| 523 | ENDIF |
---|
| 524 | CALL MPI_BCAST( this%io_pe_global_rank, 1, MPI_INTEGER, 0, this%comm_shared, ierr ) |
---|
| 525 | |
---|
| 526 | #else |
---|
| 527 | this%iam_io_pe = .FALSE. |
---|
| 528 | #endif |
---|
| 529 | |
---|
| 530 | ! write(9,'(a,8i7)') 'sm_init_comm_part ',this%sh_rank,this%sh_npes,this%io_rank,this%io_npes |
---|
| 531 | |
---|
| 532 | END SUBROUTINE sm_init_part |
---|
| 533 | |
---|
[4534] | 534 | !--------------------------------------------------------------------------------------------------! |
---|
| 535 | ! Description: |
---|
| 536 | ! ------------ |
---|
| 537 | !> Function to return if shared Memory IO is active. |
---|
| 538 | !--------------------------------------------------------------------------------------------------! |
---|
[4591] | 539 | FUNCTION is_sm_active( this ) RESULT( ac ) |
---|
[4534] | 540 | |
---|
| 541 | IMPLICIT NONE |
---|
| 542 | |
---|
[4591] | 543 | CLASS(sm_class), INTENT(inout) :: this !< |
---|
[4534] | 544 | |
---|
[4591] | 545 | LOGICAL :: ac !< |
---|
[4534] | 546 | |
---|
| 547 | ac = .NOT. this%no_shared_memory_in_this_run |
---|
| 548 | |
---|
| 549 | END FUNCTION is_sm_active |
---|
| 550 | |
---|
| 551 | |
---|
| 552 | #if defined( __parallel ) |
---|
[4617] | 553 | |
---|
[4534] | 554 | !--------------------------------------------------------------------------------------------------! |
---|
| 555 | ! Description: |
---|
| 556 | ! ------------ |
---|
[4617] | 557 | !> Allocate shared 1d-REAL (64 Bit) array on ALL threads |
---|
[4534] | 558 | !--------------------------------------------------------------------------------------------------! |
---|
[4617] | 559 | SUBROUTINE sm_allocate_shared_1d_64( this, p1, d1, d2, win ) |
---|
[4534] | 560 | |
---|
| 561 | IMPLICIT NONE |
---|
| 562 | |
---|
[4617] | 563 | CLASS(sm_class), INTENT(inout) :: this |
---|
[4534] | 564 | |
---|
[4617] | 565 | INTEGER(iwp) :: disp_unit |
---|
| 566 | INTEGER(iwp), INTENT(IN) :: d1 |
---|
| 567 | INTEGER(iwp), INTENT(IN) :: d2 |
---|
| 568 | INTEGER(iwp), SAVE :: pe_from = 0 |
---|
| 569 | INTEGER(iwp), INTENT(OUT) :: win |
---|
[4534] | 570 | |
---|
[4617] | 571 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size |
---|
| 572 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize |
---|
[4534] | 573 | |
---|
[4617] | 574 | INTEGER, DIMENSION(1) :: buf_shape |
---|
[4534] | 575 | |
---|
[4617] | 576 | REAL(dp), DIMENSION(:), POINTER :: buf |
---|
| 577 | REAL(dp), DIMENSION(:), POINTER :: p1 |
---|
[4534] | 578 | |
---|
[4617] | 579 | TYPE(C_PTR), SAVE :: base_ptr |
---|
| 580 | TYPE(C_PTR), SAVE :: rem_ptr |
---|
| 581 | |
---|
| 582 | |
---|
[4534] | 583 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 584 | ! |
---|
| 585 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 586 | IF ( this%sh_rank == pe_from ) THEN |
---|
| 587 | wsize = d2 - d1 + 1 |
---|
| 588 | ELSE |
---|
| 589 | wsize = 1 |
---|
| 590 | ENDIF |
---|
[4617] | 591 | wsize = wsize * dp ! please note, size is always in bytes, independently of the displacement |
---|
| 592 | ! unit |
---|
| 593 | |
---|
| 594 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, dp, MPI_INFO_NULL, this%comm_shared,base_ptr, win, ierr ) |
---|
| 595 | ! |
---|
| 596 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 597 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 598 | ! |
---|
| 599 | !-- Convert C- to Fortran-pointer |
---|
| 600 | buf_shape(1) = d2 - d1 + 1 |
---|
| 601 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 602 | p1(d1:) => buf |
---|
| 603 | ! |
---|
| 604 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 605 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 606 | |
---|
| 607 | END SUBROUTINE sm_allocate_shared_1d_64 |
---|
| 608 | |
---|
| 609 | |
---|
| 610 | !--------------------------------------------------------------------------------------------------! |
---|
| 611 | ! Description: |
---|
| 612 | ! ------------ |
---|
| 613 | !> Allocate shared 1d-REAL (32 Bit) array on ALL threads |
---|
| 614 | !--------------------------------------------------------------------------------------------------! |
---|
| 615 | SUBROUTINE sm_allocate_shared_1d_32( this, p1, d1, d2, win ) |
---|
| 616 | |
---|
| 617 | IMPLICIT NONE |
---|
| 618 | |
---|
| 619 | CLASS(sm_class), INTENT(inout) :: this |
---|
| 620 | |
---|
| 621 | INTEGER(iwp) :: disp_unit |
---|
| 622 | INTEGER(iwp), INTENT(IN) :: d1 |
---|
| 623 | INTEGER(iwp), INTENT(IN) :: d2 |
---|
| 624 | INTEGER(iwp), SAVE :: pe_from = 0 |
---|
| 625 | INTEGER(iwp), INTENT(OUT) :: win |
---|
| 626 | |
---|
| 627 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size |
---|
| 628 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize |
---|
| 629 | |
---|
| 630 | INTEGER, DIMENSION(1) :: buf_shape |
---|
| 631 | |
---|
| 632 | REAL(sp), DIMENSION(:), POINTER :: buf |
---|
| 633 | REAL(sp), DIMENSION(:), POINTER :: p1 |
---|
| 634 | |
---|
| 635 | TYPE(C_PTR), SAVE :: base_ptr |
---|
| 636 | TYPE(C_PTR), SAVE :: rem_ptr |
---|
| 637 | |
---|
| 638 | |
---|
| 639 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 640 | ! |
---|
| 641 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 642 | IF ( this%sh_rank == pe_from ) THEN |
---|
| 643 | wsize = d2 - d1 + 1 |
---|
| 644 | ELSE |
---|
| 645 | wsize = 1 |
---|
| 646 | ENDIF |
---|
| 647 | wsize = wsize * sp ! Please note, size is always in bytes, independently of the displacement |
---|
[4534] | 648 | ! unit |
---|
| 649 | |
---|
[4617] | 650 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, sp, MPI_INFO_NULL, this%comm_shared,base_ptr, win, ierr ) |
---|
[4534] | 651 | ! |
---|
| 652 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 653 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 654 | ! |
---|
| 655 | !-- Convert C- to Fortran-pointer |
---|
| 656 | buf_shape(1) = d2 - d1 + 1 |
---|
| 657 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 658 | p1(d1:) => buf |
---|
| 659 | ! |
---|
| 660 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 661 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 662 | |
---|
[4617] | 663 | END SUBROUTINE sm_allocate_shared_1d_32 |
---|
[4534] | 664 | |
---|
| 665 | |
---|
| 666 | !--------------------------------------------------------------------------------------------------! |
---|
| 667 | ! Description: |
---|
| 668 | ! ------------ |
---|
[4617] | 669 | !> Allocate shared 1d-INTEGER array on ALL threads |
---|
[4534] | 670 | !--------------------------------------------------------------------------------------------------! |
---|
[4617] | 671 | SUBROUTINE sm_allocate_shared_1di( this, p1, d1, d2, win ) |
---|
[4534] | 672 | |
---|
| 673 | IMPLICIT NONE |
---|
| 674 | |
---|
[4617] | 675 | CLASS(sm_class), INTENT(inout) :: this |
---|
[4534] | 676 | |
---|
[4617] | 677 | INTEGER(iwp) :: disp_unit |
---|
| 678 | INTEGER(iwp), INTENT(IN) :: d1 |
---|
| 679 | INTEGER(iwp), INTENT(IN) :: d2 |
---|
| 680 | INTEGER(iwp), SAVE :: pe_from = 0 |
---|
| 681 | INTEGER(iwp), INTENT(OUT) :: win |
---|
[4534] | 682 | |
---|
[4617] | 683 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size |
---|
| 684 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize |
---|
[4534] | 685 | |
---|
[4617] | 686 | INTEGER, DIMENSION(1) :: buf_shape |
---|
[4534] | 687 | |
---|
[4617] | 688 | INTEGER(iwp), DIMENSION(:), POINTER :: buf |
---|
| 689 | INTEGER(iwp), DIMENSION(:), POINTER :: p1 |
---|
[4534] | 690 | |
---|
[4617] | 691 | TYPE(C_PTR), SAVE :: base_ptr |
---|
| 692 | TYPE(C_PTR), SAVE :: rem_ptr |
---|
[4534] | 693 | |
---|
[4617] | 694 | |
---|
[4534] | 695 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 696 | ! |
---|
| 697 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 698 | IF ( this%sh_rank == pe_from ) THEN |
---|
[4617] | 699 | wsize = d2 - d1 + 1 |
---|
| 700 | ELSE |
---|
| 701 | wsize = 1 |
---|
| 702 | ENDIF |
---|
| 703 | wsize = wsize * iwp ! Please note, size is always in bytes, independently of the displacement |
---|
| 704 | ! unit |
---|
| 705 | |
---|
| 706 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, iwp, MPI_INFO_NULL, this%comm_shared,base_ptr, win, ierr ) |
---|
| 707 | ! |
---|
| 708 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 709 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 710 | ! |
---|
| 711 | !-- Convert C- to Fortran-pointer |
---|
| 712 | buf_shape(1) = d2 - d1 + 1 |
---|
| 713 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 714 | p1(d1:) => buf |
---|
| 715 | ! |
---|
| 716 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 717 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 718 | |
---|
| 719 | END SUBROUTINE sm_allocate_shared_1di |
---|
| 720 | |
---|
| 721 | |
---|
| 722 | !--------------------------------------------------------------------------------------------------! |
---|
| 723 | ! Description: |
---|
| 724 | ! ------------ |
---|
| 725 | !> Allocate shared 2d-REAL array on ALL threads (64 Bit) |
---|
| 726 | !--------------------------------------------------------------------------------------------------! |
---|
| 727 | SUBROUTINE sm_allocate_shared_2d_64( this, p2, n_nxlg, n_nxrg, n_nysg, n_nyng, win ) |
---|
| 728 | |
---|
| 729 | IMPLICIT NONE |
---|
| 730 | |
---|
| 731 | CLASS(sm_class), INTENT(INOUT) :: this |
---|
| 732 | |
---|
| 733 | INTEGER(iwp) :: disp_unit |
---|
| 734 | INTEGER(iwp), INTENT(IN) :: n_nxlg |
---|
| 735 | INTEGER(iwp), INTENT(IN) :: n_nxrg |
---|
| 736 | INTEGER(iwp), INTENT(IN) :: n_nyng |
---|
| 737 | INTEGER(iwp), INTENT(IN) :: n_nysg |
---|
| 738 | INTEGER(iwp), SAVE :: pe_from = 0 |
---|
| 739 | INTEGER(iwp), INTENT(OUT) :: win |
---|
| 740 | |
---|
| 741 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size |
---|
| 742 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize |
---|
| 743 | |
---|
| 744 | INTEGER(iwp), DIMENSION(2) :: buf_shape |
---|
| 745 | |
---|
| 746 | REAL(dp), DIMENSION(:,:), POINTER :: buf |
---|
| 747 | REAL(dp), DIMENSION(:,:), POINTER :: p2 |
---|
| 748 | |
---|
| 749 | TYPE(C_PTR), SAVE :: base_ptr |
---|
| 750 | TYPE(C_PTR), SAVE :: rem_ptr |
---|
| 751 | |
---|
| 752 | |
---|
| 753 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 754 | ! |
---|
| 755 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 756 | IF ( this%sh_rank == pe_from ) THEN |
---|
[4534] | 757 | wsize = ( n_nyng - n_nysg + 1 ) * ( n_nxrg - n_nxlg + 1 ) |
---|
| 758 | ELSE |
---|
| 759 | wsize = 1 |
---|
| 760 | ENDIF |
---|
| 761 | |
---|
[4617] | 762 | wsize = wsize * dp ! Please note, size is always in bytes, independently of the displacement |
---|
| 763 | ! unit |
---|
[4534] | 764 | |
---|
| 765 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, 8, MPI_INFO_NULL, this%comm_shared, base_ptr, win, ierr ) |
---|
| 766 | ! |
---|
| 767 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 768 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 769 | ! |
---|
| 770 | !-- Convert C- to Fortran-pointer |
---|
| 771 | buf_shape(2) = n_nyng - n_nysg + 1 |
---|
| 772 | buf_shape(1) = n_nxrg - n_nxlg + 1 |
---|
| 773 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 774 | p2(n_nxlg:, n_nysg:) => buf |
---|
| 775 | ! |
---|
| 776 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 777 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 778 | |
---|
[4617] | 779 | END SUBROUTINE sm_allocate_shared_2d_64 |
---|
[4534] | 780 | |
---|
| 781 | |
---|
| 782 | !--------------------------------------------------------------------------------------------------! |
---|
| 783 | ! Description: |
---|
| 784 | ! ------------ |
---|
[4617] | 785 | !> Allocate shared 2d-REAL (32 Bit) array on ALL threads |
---|
| 786 | !--------------------------------------------------------------------------------------------------! |
---|
| 787 | SUBROUTINE sm_allocate_shared_2d_32( this, p2, n_nxlg, n_nxrg, n_nysg, n_nyng, win ) |
---|
| 788 | |
---|
| 789 | IMPLICIT NONE |
---|
| 790 | |
---|
| 791 | CLASS(sm_class), INTENT(INOUT) :: this |
---|
| 792 | |
---|
| 793 | INTEGER(iwp) :: disp_unit |
---|
| 794 | INTEGER(iwp), INTENT(IN) :: n_nxlg |
---|
| 795 | INTEGER(iwp), INTENT(IN) :: n_nxrg |
---|
| 796 | INTEGER(iwp), INTENT(IN) :: n_nyng |
---|
| 797 | INTEGER(iwp), INTENT(IN) :: n_nysg |
---|
| 798 | INTEGER(iwp), SAVE :: pe_from = 0 |
---|
| 799 | INTEGER(iwp), INTENT(OUT) :: win |
---|
| 800 | |
---|
| 801 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size |
---|
| 802 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize |
---|
| 803 | |
---|
| 804 | INTEGER(iwp), DIMENSION(2) :: buf_shape |
---|
| 805 | |
---|
| 806 | REAL(sp), DIMENSION(:,:), POINTER :: buf |
---|
| 807 | REAL(sp), DIMENSION(:,:), POINTER :: p2 |
---|
| 808 | |
---|
| 809 | TYPE(C_PTR), SAVE :: base_ptr |
---|
| 810 | TYPE(C_PTR), SAVE :: rem_ptr |
---|
| 811 | |
---|
| 812 | |
---|
| 813 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 814 | ! |
---|
| 815 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 816 | IF ( this%sh_rank == pe_from ) THEN |
---|
| 817 | wsize = ( n_nyng - n_nysg + 1 ) * ( n_nxrg - n_nxlg + 1 ) |
---|
| 818 | ELSE |
---|
| 819 | wsize = 1 |
---|
| 820 | ENDIF |
---|
| 821 | |
---|
| 822 | wsize = wsize * sp ! Please note, size is always in bytes, independently of the displacement |
---|
| 823 | ! unit |
---|
| 824 | |
---|
| 825 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, dp, MPI_INFO_NULL, this%comm_shared, base_ptr, win, ierr ) |
---|
| 826 | ! |
---|
| 827 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 828 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 829 | ! |
---|
| 830 | !-- Convert C- to Fortran-pointer |
---|
| 831 | buf_shape(2) = n_nyng - n_nysg + 1 |
---|
| 832 | buf_shape(1) = n_nxrg - n_nxlg + 1 |
---|
| 833 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 834 | p2(n_nxlg:, n_nysg:) => buf |
---|
| 835 | ! |
---|
| 836 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 837 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 838 | |
---|
| 839 | END SUBROUTINE sm_allocate_shared_2d_32 |
---|
| 840 | |
---|
| 841 | |
---|
| 842 | !--------------------------------------------------------------------------------------------------! |
---|
| 843 | ! Description: |
---|
| 844 | ! ------------ |
---|
[4534] | 845 | !> Allocate shared 2d-INTEGER array on ALL threads |
---|
| 846 | !--------------------------------------------------------------------------------------------------! |
---|
| 847 | SUBROUTINE sm_allocate_shared_2di( this, p2i, n_nxlg, n_nxrg, n_nysg, n_nyng, win ) |
---|
| 848 | |
---|
| 849 | IMPLICIT NONE |
---|
| 850 | |
---|
[4591] | 851 | CLASS(sm_class), INTENT(inout) :: this !< |
---|
[4534] | 852 | |
---|
[4591] | 853 | INTEGER(iwp) :: disp_unit !< |
---|
| 854 | INTEGER(iwp), INTENT(IN) :: n_nxlg !< |
---|
| 855 | INTEGER(iwp), INTENT(IN) :: n_nxrg !< |
---|
| 856 | INTEGER(iwp), INTENT(IN) :: n_nyng !< |
---|
| 857 | INTEGER(iwp), INTENT(IN) :: n_nysg !< |
---|
| 858 | INTEGER(iwp), SAVE :: pe_from = 0 !< |
---|
[4617] | 859 | INTEGER(iwp), INTENT(OUT) :: win !< |
---|
| 860 | |
---|
[4591] | 861 | INTEGER(kind=MPI_ADDRESS_KIND) :: rem_size !< |
---|
| 862 | INTEGER(kind=MPI_ADDRESS_KIND) :: wsize !< |
---|
[4534] | 863 | |
---|
[4591] | 864 | INTEGER(iwp), DIMENSION(2) :: buf_shape !< |
---|
[4534] | 865 | |
---|
[4591] | 866 | INTEGER(iwp), DIMENSION(:,:), POINTER :: buf !< |
---|
| 867 | INTEGER(iwp), DIMENSION(:,:), POINTER :: p2i !< |
---|
[4534] | 868 | |
---|
[4617] | 869 | TYPE(C_PTR), SAVE :: base_ptr !< |
---|
| 870 | TYPE(C_PTR), SAVE :: rem_ptr !< |
---|
[4534] | 871 | |
---|
| 872 | |
---|
| 873 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 874 | ! |
---|
| 875 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 876 | IF ( this%sh_rank == pe_from ) THEN |
---|
| 877 | wsize = ( n_nyng - n_nysg + 1 ) * ( n_nxrg - n_nxlg + 1 ) |
---|
| 878 | ELSE |
---|
| 879 | wsize = 1 |
---|
| 880 | ENDIF |
---|
| 881 | |
---|
| 882 | wsize = wsize * 4 ! Please note, size is always in bytes, independently of the displacement |
---|
| 883 | ! unit |
---|
| 884 | |
---|
| 885 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, 4, MPI_INFO_NULL, this%comm_shared, base_ptr, win, ierr ) |
---|
| 886 | ! |
---|
| 887 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 888 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 889 | ! |
---|
| 890 | !-- Convert C- to Fortran-pointer |
---|
| 891 | buf_shape(2) = n_nyng - n_nysg + 1 |
---|
| 892 | buf_shape(1) = n_nxrg - n_nxlg + 1 |
---|
| 893 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 894 | p2i(n_nxlg:, n_nysg:) => buf |
---|
| 895 | ! |
---|
| 896 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 897 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 898 | |
---|
| 899 | END SUBROUTINE sm_allocate_shared_2di |
---|
| 900 | |
---|
| 901 | |
---|
| 902 | !--------------------------------------------------------------------------------------------------! |
---|
| 903 | ! Description: |
---|
| 904 | ! ------------ |
---|
[4617] | 905 | !> Allocate shared 3d-REAL (64 Bit) array on ALL threads |
---|
[4534] | 906 | !--------------------------------------------------------------------------------------------------! |
---|
[4617] | 907 | SUBROUTINE sm_allocate_shared_3d_64( this, p3, d1s, d1e, d2s, d2e, d3s, d3e, win ) |
---|
[4534] | 908 | |
---|
| 909 | IMPLICIT NONE |
---|
| 910 | |
---|
[4591] | 911 | CLASS(sm_class), INTENT(inout) :: this !< |
---|
[4534] | 912 | |
---|
[4591] | 913 | INTEGER :: disp_unit !< |
---|
| 914 | INTEGER, INTENT(IN) :: d1e !< |
---|
| 915 | INTEGER, INTENT(IN) :: d1s !< |
---|
| 916 | INTEGER, INTENT(IN) :: d2e !< |
---|
| 917 | INTEGER, INTENT(IN) :: d2s !< |
---|
| 918 | INTEGER, INTENT(IN) :: d3e !< |
---|
| 919 | INTEGER, INTENT(IN) :: d3s !< |
---|
| 920 | INTEGER, SAVE :: pe_from = 0 !< |
---|
[4617] | 921 | INTEGER, INTENT(OUT) :: win !< |
---|
| 922 | |
---|
[4591] | 923 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size !< |
---|
| 924 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize !< |
---|
[4534] | 925 | |
---|
[4591] | 926 | INTEGER, DIMENSION(3) :: buf_shape !< |
---|
[4534] | 927 | |
---|
[4617] | 928 | REAL(dp), DIMENSION(:,:,:), POINTER :: buf !< |
---|
| 929 | REAL(dp), DIMENSION(:,:,:), POINTER :: p3 !< |
---|
[4534] | 930 | |
---|
[4591] | 931 | TYPE(C_PTR), SAVE :: base_ptr !< |
---|
| 932 | TYPE(C_PTR), SAVE :: rem_ptr !< |
---|
[4534] | 933 | |
---|
| 934 | |
---|
| 935 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 936 | ! |
---|
| 937 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 938 | IF ( this%sh_rank == pe_from ) THEN |
---|
| 939 | wsize = ( d3e - d3s + 1 ) * ( d2e - d2s + 1 ) * ( d1e - d1s + 1 ) |
---|
| 940 | ELSE |
---|
| 941 | wsize = 1 |
---|
| 942 | ENDIF |
---|
| 943 | |
---|
[4617] | 944 | wsize = wsize * dp ! Please note, size is always in bytes, independently of the displacement |
---|
[4534] | 945 | ! unit |
---|
| 946 | |
---|
[4617] | 947 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, dp, MPI_INFO_NULL, this%comm_shared, base_ptr, win, ierr ) |
---|
[4534] | 948 | ! |
---|
| 949 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 950 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 951 | ! |
---|
| 952 | !-- Convert C- to Fortran-pointer |
---|
| 953 | buf_shape(3) = d3e - d3s + 1 |
---|
| 954 | buf_shape(2) = d2e - d2s + 1 |
---|
| 955 | buf_shape(1) = d1e - d1s + 1 |
---|
| 956 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 957 | p3(d1s:,d2s:,d3s:) => buf |
---|
| 958 | ! |
---|
| 959 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 960 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 961 | |
---|
[4617] | 962 | END SUBROUTINE sm_allocate_shared_3d_64 |
---|
| 963 | |
---|
| 964 | |
---|
| 965 | !--------------------------------------------------------------------------------------------------! |
---|
| 966 | ! Description: |
---|
| 967 | ! ------------ |
---|
| 968 | !> Allocate shared 3d-REAL (32 Bit) array on ALL threads |
---|
| 969 | !--------------------------------------------------------------------------------------------------! |
---|
| 970 | SUBROUTINE sm_allocate_shared_3d_32( this, p3, d1s, d1e, d2s, d2e, d3s, d3e, win ) |
---|
| 971 | |
---|
| 972 | IMPLICIT NONE |
---|
| 973 | |
---|
| 974 | CLASS(sm_class), INTENT(inout) :: this |
---|
| 975 | |
---|
| 976 | INTEGER :: disp_unit |
---|
| 977 | INTEGER, INTENT(IN) :: d1e |
---|
| 978 | INTEGER, INTENT(IN) :: d1s |
---|
| 979 | INTEGER, INTENT(IN) :: d2e |
---|
| 980 | INTEGER, INTENT(IN) :: d2s |
---|
| 981 | INTEGER, INTENT(IN) :: d3e |
---|
| 982 | INTEGER, INTENT(IN) :: d3s |
---|
| 983 | INTEGER, SAVE :: pe_from = 0 |
---|
| 984 | INTEGER, INTENT(OUT) :: win |
---|
| 985 | |
---|
| 986 | INTEGER(KIND=MPI_ADDRESS_KIND) :: rem_size |
---|
| 987 | INTEGER(KIND=MPI_ADDRESS_KIND) :: wsize |
---|
| 988 | |
---|
| 989 | INTEGER, DIMENSION(3) :: buf_shape |
---|
| 990 | |
---|
| 991 | REAL(sp), DIMENSION(:,:,:), POINTER :: buf |
---|
| 992 | REAL(sp), DIMENSION(:,:,:), POINTER :: p3 |
---|
| 993 | |
---|
| 994 | TYPE(C_PTR), SAVE :: base_ptr |
---|
| 995 | TYPE(C_PTR), SAVE :: rem_ptr |
---|
| 996 | |
---|
| 997 | |
---|
| 998 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 999 | ! |
---|
| 1000 | !-- Allocate shared memory on node rank 0 threads. |
---|
| 1001 | IF ( this%sh_rank == pe_from ) THEN |
---|
| 1002 | wsize = ( d3e - d3s + 1 ) * ( d2e - d2s + 1 ) * ( d1e - d1s + 1 ) |
---|
| 1003 | ELSE |
---|
| 1004 | wsize = 1 |
---|
| 1005 | ENDIF |
---|
| 1006 | |
---|
| 1007 | wsize = wsize * sp ! Please note, size is always in bytes, independently of the displacement |
---|
| 1008 | ! unit |
---|
| 1009 | |
---|
| 1010 | CALL MPI_WIN_ALLOCATE_SHARED( wsize, sp, MPI_INFO_NULL, this%comm_shared, base_ptr, win, ierr ) |
---|
| 1011 | ! |
---|
| 1012 | !-- Get C-pointer of the memory located on node-rank pe_from (sh_rank == pe_from) |
---|
| 1013 | CALL MPI_WIN_SHARED_QUERY( win, pe_from, rem_size, disp_unit, rem_ptr, ierr ) |
---|
| 1014 | ! |
---|
| 1015 | !-- Convert C- to Fortran-pointer |
---|
| 1016 | buf_shape(3) = d3e - d3s + 1 |
---|
| 1017 | buf_shape(2) = d2e - d2s + 1 |
---|
| 1018 | buf_shape(1) = d1e - d1s + 1 |
---|
| 1019 | CALL C_F_POINTER( rem_ptr, buf, buf_shape ) |
---|
| 1020 | p3(d1s:,d2s:,d3s:) => buf |
---|
| 1021 | ! |
---|
| 1022 | !-- Allocate shared memory in round robin on all PEs of a node. |
---|
| 1023 | pe_from = MOD( pe_from, this%sh_npes ) |
---|
| 1024 | |
---|
| 1025 | END SUBROUTINE sm_allocate_shared_3d_32 |
---|
| 1026 | |
---|
[4534] | 1027 | #endif |
---|
| 1028 | |
---|
| 1029 | |
---|
| 1030 | !--------------------------------------------------------------------------------------------------! |
---|
| 1031 | ! Description: |
---|
| 1032 | ! ------------ |
---|
| 1033 | !> ??? |
---|
| 1034 | !--------------------------------------------------------------------------------------------------! |
---|
| 1035 | SUBROUTINE sm_adjust_outer_boundary( this ) |
---|
| 1036 | |
---|
| 1037 | IMPLICIT NONE |
---|
| 1038 | |
---|
[4591] | 1039 | CLASS(sm_class), INTENT(inout) :: this !< |
---|
[4534] | 1040 | |
---|
| 1041 | |
---|
| 1042 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 1043 | |
---|
| 1044 | IF ( this%io_grid%nxl == 0 ) THEN |
---|
| 1045 | this%io_grid%nxl = this%io_grid%nxl - nbgp |
---|
| 1046 | this%io_grid%nnx = this%io_grid%nnx + nbgp |
---|
| 1047 | ENDIF |
---|
| 1048 | |
---|
| 1049 | IF ( this%io_grid%nxr == nx .OR. npex == -1 ) THEN ! npex == -1 if -D__parallel not set |
---|
| 1050 | this%io_grid%nxr = this%io_grid%nxr + nbgp |
---|
| 1051 | this%io_grid%nnx = this%io_grid%nnx + nbgp |
---|
| 1052 | ENDIF |
---|
| 1053 | |
---|
| 1054 | IF ( this%io_grid%nys == 0 ) THEN |
---|
| 1055 | this%io_grid%nys = this%io_grid%nys - nbgp |
---|
| 1056 | this%io_grid%nny = this%io_grid%nny + nbgp |
---|
| 1057 | ENDIF |
---|
| 1058 | |
---|
| 1059 | IF ( this%io_grid%nyn == ny .OR. npey == -1 ) THEN ! npey == -1 if -D__parallel not set |
---|
| 1060 | this%io_grid%nyn = this%io_grid%nyn + nbgp |
---|
| 1061 | this%io_grid%nny = this%io_grid%nny + nbgp |
---|
| 1062 | ENDIF |
---|
| 1063 | |
---|
| 1064 | this%io_grid%nxl = this%io_grid%nxl + nbgp |
---|
| 1065 | this%io_grid%nxr = this%io_grid%nxr + nbgp |
---|
| 1066 | this%io_grid%nys = this%io_grid%nys + nbgp |
---|
| 1067 | this%io_grid%nyn = this%io_grid%nyn + nbgp |
---|
| 1068 | this%io_grid%nnx = this%io_grid%nnx |
---|
| 1069 | this%io_grid%nny = this%io_grid%nny |
---|
| 1070 | |
---|
| 1071 | END SUBROUTINE sm_adjust_outer_boundary |
---|
| 1072 | |
---|
| 1073 | |
---|
| 1074 | !--------------------------------------------------------------------------------------------------! |
---|
| 1075 | ! Description: |
---|
| 1076 | ! ------------ |
---|
| 1077 | !> Deallocate shared aray and free related window. |
---|
| 1078 | !--------------------------------------------------------------------------------------------------! |
---|
| 1079 | SUBROUTINE sm_free_shared( this, win ) |
---|
| 1080 | |
---|
| 1081 | IMPLICIT NONE |
---|
| 1082 | |
---|
[4591] | 1083 | CLASS(sm_class), INTENT(inout) :: this !< |
---|
[4534] | 1084 | |
---|
[4591] | 1085 | INTEGER(iwp), INTENT(INOUT) :: win !< |
---|
[4534] | 1086 | |
---|
[4617] | 1087 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
[4534] | 1088 | #if defined( __parallel ) |
---|
| 1089 | CALL MPI_WIN_FREE( win, ierr ) |
---|
| 1090 | #endif |
---|
[4617] | 1091 | win = -1 |
---|
[4534] | 1092 | |
---|
| 1093 | END SUBROUTINE sm_free_shared |
---|
| 1094 | |
---|
| 1095 | |
---|
| 1096 | !--------------------------------------------------------------------------------------------------! |
---|
| 1097 | ! Description: |
---|
| 1098 | ! ------------ |
---|
| 1099 | !> ... |
---|
| 1100 | !--------------------------------------------------------------------------------------------------! |
---|
| 1101 | SUBROUTINE sm_node_barrier( this ) |
---|
| 1102 | |
---|
| 1103 | IMPLICIT NONE |
---|
| 1104 | |
---|
[4591] | 1105 | CLASS(sm_class), INTENT(inout) :: this !< |
---|
[4534] | 1106 | |
---|
| 1107 | |
---|
| 1108 | IF ( this%no_shared_memory_in_this_run ) RETURN |
---|
| 1109 | |
---|
| 1110 | #if defined( __parallel ) |
---|
| 1111 | CALL MPI_BARRIER( this%comm_shared, ierr ) |
---|
| 1112 | #endif |
---|
| 1113 | |
---|
| 1114 | END SUBROUTINE sm_node_barrier |
---|
| 1115 | |
---|
[4617] | 1116 | |
---|
| 1117 | SUBROUTINE save_grid_into_this_class( this ) |
---|
| 1118 | |
---|
| 1119 | IMPLICIT NONE |
---|
| 1120 | |
---|
| 1121 | CLASS(domain_decomposition_grid_features), INTENT(inout) :: this !< |
---|
| 1122 | |
---|
| 1123 | this%myid = myid !< |
---|
| 1124 | this%nnx = nnx !< |
---|
| 1125 | this%nny = nny !< |
---|
| 1126 | this%nx = nx !< |
---|
| 1127 | this%nxl = nxl !< |
---|
| 1128 | this%nxr = nxr !< |
---|
| 1129 | this%ny = ny !< |
---|
| 1130 | this%nyn = nyn !< |
---|
| 1131 | this%nys = nys !< |
---|
| 1132 | this%numprocs = numprocs !< |
---|
| 1133 | this%comm2d = comm2d !< |
---|
| 1134 | |
---|
| 1135 | END SUBROUTINE save_grid_into_this_class |
---|
| 1136 | |
---|
| 1137 | |
---|
| 1138 | SUBROUTINE activate_grid_from_this_class( this ) |
---|
| 1139 | |
---|
| 1140 | IMPLICIT NONE |
---|
| 1141 | |
---|
| 1142 | CLASS(domain_decomposition_grid_features), INTENT(inout) :: this !< |
---|
| 1143 | |
---|
| 1144 | myid = this%myid !< |
---|
| 1145 | nnx = this%nnx !< |
---|
| 1146 | nny = this%nny !< |
---|
| 1147 | nx = this%nx !< |
---|
| 1148 | nxl = this%nxl !< |
---|
| 1149 | nxr = this%nxr !< |
---|
| 1150 | ny = this%ny !< |
---|
| 1151 | nyn = this%nyn !< |
---|
| 1152 | nys = this%nys !< |
---|
| 1153 | numprocs = this%numprocs !< |
---|
| 1154 | comm2d = this%comm2d !< |
---|
| 1155 | |
---|
| 1156 | END SUBROUTINE activate_grid_from_this_class |
---|
| 1157 | |
---|
[4534] | 1158 | END MODULE shared_memory_io_mod |
---|