1 | MODULE pmc_child |
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2 | |
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3 | !------------------------------------------------------------------------------! |
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4 | ! This file is part of the PALM model system. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the |
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7 | ! terms of the GNU General Public License as published by the Free Software |
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8 | ! Foundation, either version 3 of the License, or (at your option) any later |
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9 | ! version. |
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10 | ! |
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11 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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12 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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13 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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14 | ! |
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15 | ! You should have received a copy of the GNU General Public License along with |
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16 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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17 | ! |
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18 | ! Copyright 1997-2020 Leibniz Universitaet Hannover |
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19 | !------------------------------------------------------------------------------! |
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20 | ! |
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21 | ! Current revisions: |
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22 | ! ------------------ |
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23 | ! |
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24 | ! |
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25 | ! Former revisions: |
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26 | ! ----------------- |
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27 | ! $Id: pmc_child_mod.f90 4629 2020-07-29 09:37:56Z suehring $ |
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28 | ! support for MPI Fortran77 interface (mpif.h) removed |
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29 | ! |
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30 | ! 4360 2020-01-07 11:25:50Z suehring |
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31 | ! |
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32 | ! |
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33 | ! 4182 2019-08-22 15:20:23Z scharf |
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34 | ! Corrected "Former revisions" section |
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35 | ! |
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36 | ! 3964 2019-05-09 09:48:32Z suehring |
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37 | ! Remove unused variable |
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38 | ! |
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39 | ! 3963 2019-05-08 20:09:11Z suehring |
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40 | ! Bugfixes in initial settings of child and parent communication patterns. |
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41 | ! |
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42 | ! 3945 2019-05-02 11:29:27Z raasch |
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43 | ! |
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44 | ! 3932 2019-04-24 17:31:34Z suehring |
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45 | ! typo removed |
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46 | ! |
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47 | ! 2019-02-25 15:31:42Z raasch |
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48 | ! statement added to avoid compiler warning |
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49 | ! |
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50 | ! 3655 2019-01-07 16:51:22Z knoop |
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51 | ! explicit kind settings |
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52 | ! |
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53 | ! 1762 2016-02-25 12:31:13Z hellstea |
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54 | ! Initial revision by K. Ketelsen |
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55 | ! |
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56 | ! Description: |
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57 | ! ------------ |
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58 | !> Child part of Palm Model Coupler |
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59 | !------------------------------------------------------------------------------! |
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60 | |
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61 | #if defined( __parallel ) |
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62 | |
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63 | USE, INTRINSIC :: iso_c_binding |
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64 | |
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65 | USE MPI |
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66 | |
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67 | USE kinds |
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68 | |
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69 | USE pmc_general, & |
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70 | ONLY: arraydef, childdef, da_desclen, da_namedef, da_namelen, pedef, & |
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71 | pmc_da_name_err, pmc_g_setname, pmc_max_array, pmc_status_ok |
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72 | |
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73 | USE pmc_handle_communicator, & |
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74 | ONLY: m_model_comm, m_model_npes, m_model_rank, m_to_parent_comm |
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75 | |
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76 | USE pmc_mpi_wrapper, & |
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77 | ONLY: pmc_alloc_mem, pmc_bcast, pmc_inter_bcast, pmc_time |
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78 | |
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79 | IMPLICIT NONE |
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80 | |
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81 | |
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82 | PRIVATE |
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83 | SAVE |
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84 | |
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85 | TYPE(childdef), PUBLIC :: me !< |
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86 | |
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87 | INTEGER(iwp) :: myindex = 0 !< counter and unique number for data arrays |
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88 | INTEGER(iwp) :: next_array_in_list = 0 !< |
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89 | |
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90 | |
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91 | INTERFACE pmc_childinit |
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92 | MODULE PROCEDURE pmc_childinit |
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93 | END INTERFACE pmc_childinit |
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94 | |
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95 | INTERFACE pmc_c_clear_next_array_list |
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96 | MODULE PROCEDURE pmc_c_clear_next_array_list |
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97 | END INTERFACE pmc_c_clear_next_array_list |
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98 | |
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99 | INTERFACE pmc_c_getbuffer |
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100 | MODULE PROCEDURE pmc_c_getbuffer |
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101 | END INTERFACE pmc_c_getbuffer |
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102 | |
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103 | INTERFACE pmc_c_getnextarray |
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104 | MODULE PROCEDURE pmc_c_getnextarray |
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105 | END INTERFACE pmc_c_getnextarray |
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106 | |
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107 | INTERFACE pmc_c_get_2d_index_list |
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108 | MODULE PROCEDURE pmc_c_get_2d_index_list |
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109 | END INTERFACE pmc_c_get_2d_index_list |
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110 | |
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111 | INTERFACE pmc_c_putbuffer |
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112 | MODULE PROCEDURE pmc_c_putbuffer |
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113 | END INTERFACE pmc_c_putbuffer |
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114 | |
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115 | INTERFACE pmc_c_setind_and_allocmem |
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116 | MODULE PROCEDURE pmc_c_setind_and_allocmem |
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117 | END INTERFACE pmc_c_setind_and_allocmem |
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118 | |
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119 | INTERFACE pmc_c_set_dataarray |
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120 | MODULE PROCEDURE pmc_c_set_dataarray_2d |
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121 | MODULE PROCEDURE pmc_c_set_dataarray_3d |
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122 | MODULE PROCEDURE pmc_c_set_dataarray_ip2d |
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123 | END INTERFACE pmc_c_set_dataarray |
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124 | |
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125 | INTERFACE pmc_set_dataarray_name |
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126 | MODULE PROCEDURE pmc_set_dataarray_name |
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127 | MODULE PROCEDURE pmc_set_dataarray_name_lastentry |
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128 | END INTERFACE pmc_set_dataarray_name |
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129 | |
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130 | |
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131 | PUBLIC pmc_childinit, pmc_c_clear_next_array_list, pmc_c_getbuffer, & |
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132 | pmc_c_getnextarray, pmc_c_putbuffer, pmc_c_setind_and_allocmem, & |
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133 | pmc_c_set_dataarray, pmc_set_dataarray_name, pmc_c_get_2d_index_list |
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134 | |
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135 | CONTAINS |
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136 | |
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137 | |
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138 | |
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139 | SUBROUTINE pmc_childinit |
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140 | |
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141 | IMPLICIT NONE |
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142 | |
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143 | INTEGER(iwp) :: i !< |
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144 | INTEGER(iwp) :: istat !< |
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145 | |
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146 | ! |
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147 | !-- Get / define the MPI environment |
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148 | me%model_comm = m_model_comm |
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149 | me%inter_comm = m_to_parent_comm |
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150 | |
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151 | CALL MPI_COMM_RANK( me%model_comm, me%model_rank, istat ) |
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152 | CALL MPI_COMM_SIZE( me%model_comm, me%model_npes, istat ) |
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153 | CALL MPI_COMM_REMOTE_SIZE( me%inter_comm, me%inter_npes, istat ) |
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154 | ! |
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155 | !-- Intra-communicator is used for MPI_GET |
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156 | CALL MPI_INTERCOMM_MERGE( me%inter_comm, .TRUE., me%intra_comm, istat ) |
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157 | CALL MPI_COMM_RANK( me%intra_comm, me%intra_rank, istat ) |
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158 | |
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159 | ALLOCATE( me%pes(me%inter_npes) ) |
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160 | ! |
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161 | !-- Allocate an array of type arraydef for all parent processes to store |
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162 | !-- information of then transfer array |
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163 | DO i = 1, me%inter_npes |
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164 | ALLOCATE( me%pes(i)%array_list(pmc_max_array) ) |
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165 | ENDDO |
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166 | |
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167 | END SUBROUTINE pmc_childinit |
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168 | |
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169 | |
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170 | |
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171 | SUBROUTINE pmc_set_dataarray_name( parentarraydesc, parentarrayname, & |
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172 | childarraydesc, childarrayname, istat ) |
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173 | |
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174 | IMPLICIT NONE |
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175 | |
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176 | CHARACTER(LEN=*), INTENT(IN) :: parentarrayname !< |
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177 | CHARACTER(LEN=*), INTENT(IN) :: parentarraydesc !< |
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178 | CHARACTER(LEN=*), INTENT(IN) :: childarrayname !< |
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179 | CHARACTER(LEN=*), INTENT(IN) :: childarraydesc !< |
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180 | |
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181 | INTEGER(iwp), INTENT(OUT) :: istat !< |
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182 | ! |
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183 | !-- Local variables |
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184 | TYPE(da_namedef) :: myname !< |
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185 | |
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186 | INTEGER(iwp) :: mype !< |
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187 | |
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188 | |
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189 | istat = pmc_status_ok |
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190 | ! |
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191 | !-- Check length of array names |
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192 | IF ( LEN( TRIM( parentarrayname) ) > da_namelen .OR. & |
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193 | LEN( TRIM( childarrayname) ) > da_namelen ) THEN |
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194 | istat = pmc_da_name_err |
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195 | ENDIF |
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196 | |
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197 | IF ( m_model_rank == 0 ) THEN |
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198 | myindex = myindex + 1 |
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199 | myname%couple_index = myindex |
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200 | myname%parentdesc = TRIM( parentarraydesc ) |
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201 | myname%nameonparent = TRIM( parentarrayname ) |
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202 | myname%childdesc = TRIM( childarraydesc ) |
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203 | myname%nameonchild = TRIM( childarrayname ) |
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204 | ENDIF |
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205 | |
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206 | ! |
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207 | !-- Broadcast to all child processes |
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208 | ! |
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209 | !-- The complete description of an transfer names array is broadcasted |
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210 | |
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211 | CALL pmc_bcast( myname%couple_index, 0, comm=m_model_comm ) |
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212 | CALL pmc_bcast( myname%parentdesc, 0, comm=m_model_comm ) |
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213 | CALL pmc_bcast( myname%nameonparent, 0, comm=m_model_comm ) |
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214 | CALL pmc_bcast( myname%childdesc, 0, comm=m_model_comm ) |
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215 | CALL pmc_bcast( myname%nameonchild, 0, comm=m_model_comm ) |
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216 | ! |
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217 | !-- Broadcast to all parent processes |
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218 | !-- The complete description of an transfer array names is broadcasted als to all parent processe |
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219 | ! Only the root PE of the broadcasts to parent using intra communicator |
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220 | |
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221 | IF ( m_model_rank == 0 ) THEN |
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222 | mype = MPI_ROOT |
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223 | ELSE |
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224 | mype = MPI_PROC_NULL |
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225 | ENDIF |
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226 | |
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227 | CALL pmc_bcast( myname%couple_index, mype, comm=m_to_parent_comm ) |
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228 | CALL pmc_bcast( myname%parentdesc, mype, comm=m_to_parent_comm ) |
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229 | CALL pmc_bcast( myname%nameonparent, mype, comm=m_to_parent_comm ) |
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230 | CALL pmc_bcast( myname%childdesc, mype, comm=m_to_parent_comm ) |
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231 | CALL pmc_bcast( myname%nameonchild, mype, comm=m_to_parent_comm ) |
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232 | |
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233 | CALL pmc_g_setname( me, myname%couple_index, myname%nameonchild ) |
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234 | |
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235 | END SUBROUTINE pmc_set_dataarray_name |
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236 | |
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237 | |
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238 | |
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239 | SUBROUTINE pmc_set_dataarray_name_lastentry( lastentry ) |
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240 | |
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241 | IMPLICIT NONE |
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242 | |
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243 | LOGICAL, INTENT(IN), OPTIONAL :: lastentry !< |
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244 | ! |
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245 | !-- Local variables |
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246 | INTEGER :: idum !< |
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247 | INTEGER :: mype !< |
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248 | TYPE(dA_namedef) :: myname !< |
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249 | |
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250 | myname%couple_index = -1 |
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251 | |
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252 | IF ( m_model_rank == 0 ) THEN |
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253 | mype = MPI_ROOT |
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254 | ELSE |
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255 | mype = MPI_PROC_NULL |
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256 | ENDIF |
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257 | |
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258 | CALL pmc_bcast( myname%couple_index, mype, comm=m_to_parent_comm ) |
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259 | |
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260 | ! |
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261 | !-- Next statement is just to avoid compiler warnings about unused variables |
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262 | IF ( PRESENT( lastentry ) ) idum = 1 |
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263 | |
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264 | END SUBROUTINE pmc_set_dataarray_name_lastentry |
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265 | |
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266 | |
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267 | |
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268 | SUBROUTINE pmc_c_get_2d_index_list |
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269 | |
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270 | IMPLICIT NONE |
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271 | |
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272 | INTEGER(iwp) :: dummy !< |
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273 | INTEGER(iwp) :: i, ierr, i2, j, nr !< |
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274 | INTEGER(iwp) :: indwin !< MPI window object |
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275 | INTEGER(iwp) :: indwin2 !< MPI window object |
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276 | |
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277 | INTEGER(KIND=MPI_ADDRESS_KIND) :: win_size !< Size of MPI window 1 (in bytes) |
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278 | INTEGER(KIND=MPI_ADDRESS_KIND) :: disp !< Displacement unit (Integer = 4, floating poit = 8 |
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279 | INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !< Size of MPI window 2 (in bytes) |
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280 | |
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281 | INTEGER, DIMENSION(me%inter_npes*2) :: nrele !< Number of Elements of a |
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282 | !< horizontal slice |
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283 | INTEGER, DIMENSION(:), POINTER :: myind !< |
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284 | |
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285 | TYPE(pedef), POINTER :: ape !> Pointer to pedef structure |
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286 | |
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287 | |
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288 | win_size = STORAGE_SIZE( dummy )/8 |
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289 | CALL MPI_WIN_CREATE( dummy, win_size, iwp, MPI_INFO_NULL, me%intra_comm, & |
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290 | indwin, ierr ) |
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291 | ! |
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292 | !-- Close window on child side and open on parent side |
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293 | CALL MPI_WIN_FENCE( 0, indwin, ierr ) |
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294 | |
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295 | ! Between the two MPI_WIN_FENCE calls, the parent can fill the RMA window |
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296 | |
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297 | !-- Close window on parent side and open on child side |
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298 | |
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299 | CALL MPI_WIN_FENCE( 0, indwin, ierr ) |
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300 | |
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301 | DO i = 1, me%inter_npes |
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302 | disp = me%model_rank * 2 |
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303 | CALL MPI_GET( nrele((i-1)*2+1), 2, MPI_INTEGER, i-1, disp, 2, & |
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304 | MPI_INTEGER, indwin, ierr ) |
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305 | ENDDO |
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306 | ! |
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307 | !-- MPI_GET is non-blocking -> data in nrele is not available until MPI_FENCE is |
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308 | !-- called |
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309 | CALL MPI_WIN_FENCE( 0, indwin, ierr ) |
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310 | ! |
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311 | !-- Allocate memory for index array |
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312 | winsize = 0 |
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313 | DO i = 1, me%inter_npes |
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314 | ape => me%pes(i) |
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315 | i2 = ( i-1 ) * 2 + 1 |
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316 | nr = nrele(i2+1) |
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317 | IF ( nr > 0 ) THEN |
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318 | ALLOCATE( ape%locind(nr) ) |
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319 | ELSE |
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320 | NULLIFY( ape%locind ) |
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321 | ENDIF |
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322 | winsize = MAX( INT( nr, MPI_ADDRESS_KIND ), winsize ) |
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323 | ENDDO |
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324 | |
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325 | ALLOCATE( myind(2*winsize) ) |
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326 | winsize = 1 |
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327 | ! |
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328 | !-- Local buffer used in MPI_GET can but must not be inside the MPI Window. |
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329 | !-- Here, we use a dummy for the MPI window because the parent processes do |
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330 | !-- not access the RMA window via MPI_GET or MPI_PUT |
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331 | CALL MPI_WIN_CREATE( dummy, winsize, iwp, MPI_INFO_NULL, me%intra_comm, & |
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332 | indwin2, ierr ) |
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333 | ! |
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334 | !-- MPI_GET is non-blocking -> data in nrele is not available until MPI_FENCE is |
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335 | !-- called |
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336 | |
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337 | CALL MPI_WIN_FENCE( 0, indwin2, ierr ) |
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338 | |
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339 | ! Between the two MPI_WIN_FENCE calls, the parent can fill the RMA window |
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340 | |
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341 | CALL MPI_WIN_FENCE( 0, indwin2, ierr ) |
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342 | |
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343 | DO i = 1, me%inter_npes |
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344 | ape => me%pes(i) |
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345 | nr = nrele(i*2) |
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346 | IF ( nr > 0 ) THEN |
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347 | disp = nrele(2*(i-1)+1) |
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348 | CALL MPI_WIN_LOCK( MPI_LOCK_SHARED , i-1, 0, indwin2, ierr ) |
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349 | CALL MPI_GET( myind, 2*nr, MPI_INTEGER, i-1, disp, 2*nr, & |
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350 | MPI_INTEGER, indwin2, ierr ) |
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351 | CALL MPI_WIN_UNLOCK( i-1, indwin2, ierr ) |
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352 | DO j = 1, nr |
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353 | ape%locind(j)%i = myind(2*j-1) |
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354 | ape%locind(j)%j = myind(2*j) |
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355 | ENDDO |
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356 | ape%nrele = nr |
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357 | ELSE |
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358 | ape%nrele = -1 |
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359 | ENDIF |
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360 | ENDDO |
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361 | ! |
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362 | !-- Don't know why, but this barrier is necessary before we can free the windows |
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363 | CALL MPI_BARRIER( me%intra_comm, ierr ) |
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364 | |
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365 | CALL MPI_WIN_FREE( indWin, ierr ) |
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366 | CALL MPI_WIN_FREE( indwin2, ierr ) |
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367 | DEALLOCATE( myind ) |
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368 | |
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369 | END SUBROUTINE pmc_c_get_2d_index_list |
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370 | |
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371 | |
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372 | |
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373 | SUBROUTINE pmc_c_clear_next_array_list |
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374 | |
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375 | IMPLICIT NONE |
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376 | |
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377 | next_array_in_list = 0 |
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378 | |
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379 | END SUBROUTINE pmc_c_clear_next_array_list |
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380 | |
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381 | |
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382 | |
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383 | LOGICAL FUNCTION pmc_c_getnextarray( myname ) |
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384 | |
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385 | ! |
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386 | !-- List handling is still required to get minimal interaction with |
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387 | !-- pmc_interface |
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388 | CHARACTER(LEN=*), INTENT(OUT) :: myname !< |
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389 | ! |
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390 | !-- Local variables |
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391 | TYPE(pedef), POINTER :: ape |
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392 | TYPE(arraydef), POINTER :: ar |
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393 | |
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394 | |
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395 | next_array_in_list = next_array_in_list + 1 |
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396 | ! |
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397 | !-- Array names are the same on all child PEs, so take first process to |
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398 | !-- get the name |
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399 | ape => me%pes(1) |
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400 | ! |
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401 | !-- Check if all arrays have been processed |
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402 | IF ( next_array_in_list > ape%nr_arrays ) THEN |
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403 | pmc_c_getnextarray = .FALSE. |
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404 | RETURN |
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405 | ENDIF |
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406 | |
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407 | ar => ape%array_list( next_array_in_list ) |
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408 | |
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409 | myname = ar%name |
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410 | ! |
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411 | !-- Return true if annother array |
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412 | !-- If all array have been processed, the RETURN statement a couple of lines above is active |
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413 | |
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414 | pmc_c_getnextarray = .TRUE. |
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415 | |
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416 | END FUNCTION pmc_c_getnextarray |
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417 | |
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418 | |
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419 | |
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420 | SUBROUTINE pmc_c_set_dataarray_2d( array ) |
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421 | |
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422 | IMPLICIT NONE |
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423 | |
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424 | REAL(wp), INTENT(IN) , DIMENSION(:,:), POINTER :: array !< |
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425 | |
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426 | INTEGER(iwp) :: i !< |
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427 | INTEGER(iwp) :: nrdims !< |
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428 | INTEGER(iwp), DIMENSION(4) :: dims !< |
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429 | |
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430 | TYPE(C_PTR) :: array_adr |
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431 | TYPE(arraydef), POINTER :: ar |
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432 | TYPE(pedef), POINTER :: ape |
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433 | |
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434 | |
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435 | dims = 1 |
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436 | nrdims = 2 |
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437 | dims(1) = SIZE( array, 1 ) |
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438 | dims(2) = SIZE( array, 2 ) |
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439 | |
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440 | array_adr = C_LOC( array ) |
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441 | |
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442 | DO i = 1, me%inter_npes |
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443 | ape => me%pes(i) |
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444 | ar => ape%array_list(next_array_in_list) |
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445 | ar%nrdims = nrdims |
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446 | ar%dimkey = nrdims |
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447 | ar%a_dim = dims |
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448 | ar%data = array_adr |
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449 | ENDDO |
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450 | |
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451 | END SUBROUTINE pmc_c_set_dataarray_2d |
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452 | |
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453 | SUBROUTINE pmc_c_set_dataarray_ip2d( array ) |
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454 | |
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455 | IMPLICIT NONE |
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456 | |
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457 | INTEGER(idp), INTENT(IN) , DIMENSION(:,:), POINTER :: array !< |
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458 | |
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459 | INTEGER(iwp) :: i !< |
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460 | INTEGER(iwp) :: nrdims !< |
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461 | INTEGER(iwp), DIMENSION(4) :: dims !< |
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462 | |
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463 | TYPE(C_PTR) :: array_adr |
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464 | TYPE(arraydef), POINTER :: ar |
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465 | TYPE(pedef), POINTER :: ape |
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466 | |
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467 | dims = 1 |
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468 | nrdims = 2 |
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469 | dims(1) = SIZE( array, 1 ) |
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470 | dims(2) = SIZE( array, 2 ) |
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471 | |
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472 | array_adr = C_LOC( array ) |
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473 | |
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474 | DO i = 1, me%inter_npes |
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475 | ape => me%pes(i) |
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476 | ar => ape%array_list(next_array_in_list) |
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477 | ar%nrdims = nrdims |
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478 | ar%dimkey = 22 |
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479 | ar%a_dim = dims |
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480 | ar%data = array_adr |
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481 | ENDDO |
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482 | |
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483 | END SUBROUTINE pmc_c_set_dataarray_ip2d |
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484 | |
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485 | SUBROUTINE pmc_c_set_dataarray_3d (array) |
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486 | |
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487 | IMPLICIT NONE |
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488 | |
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489 | REAL(wp), INTENT(IN), DIMENSION(:,:,:), POINTER :: array !< |
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490 | |
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491 | INTEGER(iwp) :: i |
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492 | INTEGER(iwp) :: nrdims |
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493 | INTEGER(iwp), DIMENSION (4) :: dims |
---|
494 | |
---|
495 | TYPE(C_PTR) :: array_adr |
---|
496 | TYPE(pedef), POINTER :: ape |
---|
497 | TYPE(arraydef), POINTER :: ar |
---|
498 | |
---|
499 | |
---|
500 | dims = 1 |
---|
501 | nrdims = 3 |
---|
502 | dims(1) = SIZE( array, 1 ) |
---|
503 | dims(2) = SIZE( array, 2 ) |
---|
504 | dims(3) = SIZE( array, 3 ) |
---|
505 | |
---|
506 | array_adr = C_LOC( array ) |
---|
507 | |
---|
508 | DO i = 1, me%inter_npes |
---|
509 | ape => me%pes(i) |
---|
510 | ar => ape%array_list(next_array_in_list) |
---|
511 | ar%nrdims = nrdims |
---|
512 | ar%dimkey = nrdims |
---|
513 | ar%a_dim = dims |
---|
514 | ar%data = array_adr |
---|
515 | ENDDO |
---|
516 | |
---|
517 | END SUBROUTINE pmc_c_set_dataarray_3d |
---|
518 | |
---|
519 | |
---|
520 | |
---|
521 | SUBROUTINE pmc_c_setind_and_allocmem |
---|
522 | |
---|
523 | IMPLICIT NONE |
---|
524 | |
---|
525 | ! |
---|
526 | !-- Naming convention for appendices: _pc -> parent to child transfer |
---|
527 | !-- _cp -> child to parent transfer |
---|
528 | !-- recv -> parent to child transfer |
---|
529 | !-- send -> child to parent transfer |
---|
530 | INTEGER(iwp) :: arlen !< |
---|
531 | INTEGER(iwp) :: myindex !< |
---|
532 | INTEGER(iwp) :: i !< |
---|
533 | INTEGER(iwp) :: ierr !< |
---|
534 | INTEGER(iwp) :: istat !< |
---|
535 | INTEGER(iwp) :: j !< |
---|
536 | INTEGER(iwp) :: lo_nr_arrays !< |
---|
537 | INTEGER(iwp) :: rcount !< |
---|
538 | INTEGER(iwp) :: tag !< |
---|
539 | INTEGER(iwp) :: total_npes !< |
---|
540 | |
---|
541 | INTEGER(iwp), PARAMETER :: noindex = -1 !< |
---|
542 | |
---|
543 | INTEGER(idp) :: bufsize !< size of MPI data window |
---|
544 | INTEGER(KIND=MPI_ADDRESS_KIND) :: winsize !< |
---|
545 | |
---|
546 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: myindex_s |
---|
547 | INTEGER(iwp), DIMENSION(:,:), ALLOCATABLE :: myindex_r |
---|
548 | |
---|
549 | REAL(wp), DIMENSION(:), POINTER, SAVE :: base_array_pc !< base array |
---|
550 | REAL(wp), DIMENSION(:), POINTER, SAVE :: base_array_cp !< base array |
---|
551 | |
---|
552 | TYPE(pedef), POINTER :: ape !< |
---|
553 | TYPE(arraydef), POINTER :: ar !< |
---|
554 | Type(C_PTR) :: base_ptr !< |
---|
555 | |
---|
556 | |
---|
557 | CALL MPI_COMM_SIZE (me%intra_comm, total_npes, ierr) |
---|
558 | |
---|
559 | lo_nr_arrays = me%pes(1)%nr_arrays |
---|
560 | |
---|
561 | ALLOCATE(myindex_s(lo_nr_arrays,0:total_npes-1)) |
---|
562 | ALLOCATE(myindex_r(lo_nr_arrays,0:total_npes-1)) |
---|
563 | |
---|
564 | myindex_s = 0 |
---|
565 | |
---|
566 | ! |
---|
567 | !-- Receive indices from child |
---|
568 | CALL MPI_ALLTOALL( myindex_s, lo_nr_arrays, MPI_INTEGER, & |
---|
569 | myindex_r, lo_nr_arrays, MPI_INTEGER, & |
---|
570 | me%intra_comm, ierr ) |
---|
571 | |
---|
572 | myindex = 0 |
---|
573 | bufsize = 8 |
---|
574 | ! |
---|
575 | !-- Parent to child direction. |
---|
576 | !-- First stride: compute size and set index |
---|
577 | DO i = 1, me%inter_npes |
---|
578 | ape => me%pes(i) |
---|
579 | DO j = 1, ape%nr_arrays |
---|
580 | ar => ape%array_list(j) |
---|
581 | ar%recvindex = myindex_r(j,i-1) |
---|
582 | ! |
---|
583 | !-- Determine max, because child buffer is allocated only once |
---|
584 | !-- All 2D and 3d arrays use the same buffer |
---|
585 | |
---|
586 | IF ( ar%nrdims == 3 ) THEN |
---|
587 | bufsize = MAX( bufsize, & |
---|
588 | INT( ar%a_dim(1)*ar%a_dim(2)*ar%a_dim(3), & |
---|
589 | MPI_ADDRESS_KIND ) ) |
---|
590 | ELSE |
---|
591 | bufsize = MAX( bufsize, & |
---|
592 | INT( ar%a_dim(1)*ar%a_dim(2), MPI_ADDRESS_KIND ) ) |
---|
593 | ENDIF |
---|
594 | ENDDO |
---|
595 | ENDDO |
---|
596 | |
---|
597 | ! |
---|
598 | !-- Create RMA (one sided communication) data buffer. |
---|
599 | !-- The buffer for MPI_GET can be PE local, i.e. it can but must not be part of |
---|
600 | !-- the MPI RMA window |
---|
601 | CALL pmc_alloc_mem( base_array_pc, bufsize, base_ptr ) |
---|
602 | me%totalbuffersize = bufsize*wp ! total buffer size in byte |
---|
603 | ! |
---|
604 | !-- Second stride: set buffer pointer |
---|
605 | DO i = 1, me%inter_npes |
---|
606 | ape => me%pes(i) |
---|
607 | DO j = 1, ape%nr_arrays |
---|
608 | ar => ape%array_list(j) |
---|
609 | ar%recvbuf = base_ptr |
---|
610 | ENDDO |
---|
611 | ENDDO |
---|
612 | ! |
---|
613 | !-- Child to parent direction |
---|
614 | myindex = 1 |
---|
615 | rcount = 0 |
---|
616 | bufsize = 8 |
---|
617 | |
---|
618 | myindex_s = 0 |
---|
619 | myindex_r = 0 |
---|
620 | |
---|
621 | DO i = 1, me%inter_npes |
---|
622 | ape => me%pes(i) |
---|
623 | tag = 300 |
---|
624 | DO j = 1, ape%nr_arrays |
---|
625 | ar => ape%array_list(j) |
---|
626 | IF ( ar%nrdims == 2 ) THEN |
---|
627 | arlen = ape%nrele |
---|
628 | ELSEIF( ar%nrdims == 3 ) THEN |
---|
629 | arlen = ape%nrele*ar%a_dim(1) |
---|
630 | ENDIF |
---|
631 | |
---|
632 | IF ( ape%nrele > 0 ) THEN |
---|
633 | ar%sendindex = myindex |
---|
634 | ELSE |
---|
635 | ar%sendindex = noindex |
---|
636 | ENDIF |
---|
637 | |
---|
638 | myindex_s(j,i-1) = ar%sendindex |
---|
639 | |
---|
640 | IF ( ape%nrele > 0 ) THEN |
---|
641 | ar%sendsize = arlen |
---|
642 | myindex = myindex + arlen |
---|
643 | bufsize = bufsize + arlen |
---|
644 | ENDIF |
---|
645 | |
---|
646 | ENDDO |
---|
647 | |
---|
648 | ENDDO |
---|
649 | ! |
---|
650 | !-- Send indices to parent |
---|
651 | |
---|
652 | CALL MPI_ALLTOALL( myindex_s, lo_nr_arrays, MPI_INTEGER, & |
---|
653 | myindex_r, lo_nr_arrays, MPI_INTEGER, & |
---|
654 | me%intra_comm, ierr) |
---|
655 | |
---|
656 | DEALLOCATE( myindex_s ) |
---|
657 | DEALLOCATE( myindex_r ) |
---|
658 | |
---|
659 | ! |
---|
660 | !-- Create RMA (one sided communication) window for data buffer child to parent |
---|
661 | !-- transfer. |
---|
662 | !-- The buffer of MPI_GET (counter part of transfer) can be PE-local, i.e. it |
---|
663 | !-- can but must not be part of the MPI RMA window. Only one RMA window is |
---|
664 | !-- required to prepare the data |
---|
665 | !-- for parent -> child transfer on the parent side |
---|
666 | !-- and |
---|
667 | !-- for child -> parent transfer on the child side |
---|
668 | CALL pmc_alloc_mem( base_array_cp, bufsize ) |
---|
669 | me%totalbuffersize = bufsize * wp ! total buffer size in byte |
---|
670 | |
---|
671 | winSize = me%totalbuffersize |
---|
672 | |
---|
673 | CALL MPI_WIN_CREATE( base_array_cp, winsize, wp, MPI_INFO_NULL, & |
---|
674 | me%intra_comm, me%win_parent_child, ierr ) |
---|
675 | CALL MPI_WIN_FENCE( 0, me%win_parent_child, ierr ) |
---|
676 | CALL MPI_BARRIER( me%intra_comm, ierr ) |
---|
677 | ! |
---|
678 | !-- Second stride: set buffer pointer |
---|
679 | DO i = 1, me%inter_npes |
---|
680 | ape => me%pes(i) |
---|
681 | DO j = 1, ape%nr_arrays |
---|
682 | ar => ape%array_list(j) |
---|
683 | IF ( ape%nrele > 0 ) THEN |
---|
684 | ar%sendbuf = C_LOC( base_array_cp(ar%sendindex) ) |
---|
685 | ! |
---|
686 | !-- TODO: if this is an error to be really expected, replace the |
---|
687 | !-- following message by a meaningful standard PALM message using |
---|
688 | !-- the message-routine |
---|
689 | IF ( ar%sendindex+ar%sendsize > bufsize ) THEN |
---|
690 | WRITE( 0,'(a,i4,4i7,1x,a)') 'Child buffer too small ', i, & |
---|
691 | ar%sendindex, ar%sendsize, ar%sendindex+ar%sendsize, & |
---|
692 | bufsize, TRIM( ar%name ) |
---|
693 | CALL MPI_ABORT( MPI_COMM_WORLD, istat, ierr ) |
---|
694 | ENDIF |
---|
695 | ENDIF |
---|
696 | ENDDO |
---|
697 | ENDDO |
---|
698 | |
---|
699 | END SUBROUTINE pmc_c_setind_and_allocmem |
---|
700 | |
---|
701 | |
---|
702 | |
---|
703 | SUBROUTINE pmc_c_getbuffer( waittime, particle_transfer ) |
---|
704 | |
---|
705 | IMPLICIT NONE |
---|
706 | |
---|
707 | REAL(wp), INTENT(OUT), OPTIONAL :: waittime !< |
---|
708 | LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !< |
---|
709 | |
---|
710 | LOGICAL :: lo_ptrans!< |
---|
711 | |
---|
712 | INTEGER(iwp) :: ierr !< |
---|
713 | INTEGER(iwp) :: ij !< |
---|
714 | INTEGER(iwp) :: ip !< |
---|
715 | INTEGER(iwp) :: j !< |
---|
716 | INTEGER(iwp) :: myindex !< |
---|
717 | INTEGER(iwp) :: nr !< number of elements to get |
---|
718 | !< from parent |
---|
719 | INTEGER(KIND=MPI_ADDRESS_KIND) :: target_disp |
---|
720 | INTEGER,DIMENSION(1) :: buf_shape |
---|
721 | |
---|
722 | REAL(wp) :: t1 |
---|
723 | REAL(wp) :: t2 |
---|
724 | |
---|
725 | REAL(wp), POINTER, DIMENSION(:) :: buf |
---|
726 | REAL(wp), POINTER, DIMENSION(:,:) :: data_2d |
---|
727 | REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d |
---|
728 | TYPE(pedef), POINTER :: ape |
---|
729 | TYPE(arraydef), POINTER :: ar |
---|
730 | INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !< |
---|
731 | INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !< |
---|
732 | |
---|
733 | ! |
---|
734 | !-- Synchronization of the model is done in pmci_synchronize. |
---|
735 | !-- Therefore the RMA window can be filled without |
---|
736 | !-- sychronization at this point and a barrier is not necessary. |
---|
737 | |
---|
738 | !-- In case waittime is present, the following barrier is necessary to |
---|
739 | !-- insure the same number of barrier calls on parent and child |
---|
740 | !-- This means, that here on child side two barriers are call successively |
---|
741 | !-- The parent is filling its buffer between the two barrier calls |
---|
742 | |
---|
743 | !-- Please note that waittime has to be set in pmc_s_fillbuffer AND |
---|
744 | !-- pmc_c_getbuffer |
---|
745 | IF ( PRESENT( waittime ) ) THEN |
---|
746 | t1 = pmc_time() |
---|
747 | CALL MPI_BARRIER( me%intra_comm, ierr ) |
---|
748 | t2 = pmc_time() |
---|
749 | waittime = t2 - t1 |
---|
750 | ENDIF |
---|
751 | |
---|
752 | lo_ptrans = .FALSE. |
---|
753 | IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer |
---|
754 | |
---|
755 | ! |
---|
756 | !-- Wait for buffer is filled. |
---|
757 | ! |
---|
758 | !-- The parent side (in pmc_s_fillbuffer) is filling the buffer in the MPI RMA window |
---|
759 | !-- When the filling is complet, a MPI_BARRIER is called. |
---|
760 | !-- The child is not allowd to access the parent-buffer before it is completely filled |
---|
761 | !-- therefore the following barrier is required. |
---|
762 | |
---|
763 | CALL MPI_BARRIER( me%intra_comm, ierr ) |
---|
764 | |
---|
765 | DO ip = 1, me%inter_npes |
---|
766 | ape => me%pes(ip) |
---|
767 | DO j = 1, ape%nr_arrays |
---|
768 | ar => ape%array_list(j) |
---|
769 | |
---|
770 | IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans) THEN |
---|
771 | nr = ape%nrele |
---|
772 | ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans) THEN |
---|
773 | nr = ape%nrele * ar%a_dim(1) |
---|
774 | ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN |
---|
775 | nr = ape%nrele |
---|
776 | ELSE |
---|
777 | CYCLE ! Particle array ar not transferd here |
---|
778 | ENDIF |
---|
779 | buf_shape(1) = nr |
---|
780 | IF ( lo_ptrans ) THEN |
---|
781 | CALL C_F_POINTER( ar%recvbuf, ibuf, buf_shape ) |
---|
782 | ELSE |
---|
783 | CALL C_F_POINTER( ar%recvbuf, buf, buf_shape ) |
---|
784 | ENDIF |
---|
785 | ! |
---|
786 | !-- MPI passive target RMA |
---|
787 | !-- One data array is fetcht from MPI RMA window on parent |
---|
788 | |
---|
789 | IF ( nr > 0 ) THEN |
---|
790 | target_disp = ar%recvindex - 1 |
---|
791 | CALL MPI_WIN_LOCK( MPI_LOCK_SHARED , ip-1, 0, & |
---|
792 | me%win_parent_child, ierr ) |
---|
793 | IF ( lo_ptrans ) THEN |
---|
794 | CALL MPI_GET( ibuf, nr*8, MPI_BYTE, ip-1, target_disp, nr*8, MPI_BYTE, & !There is no MPI_INTEGER8 datatype |
---|
795 | me%win_parent_child, ierr ) |
---|
796 | ELSE |
---|
797 | CALL MPI_GET( buf, nr, MPI_REAL, ip-1, target_disp, nr, & |
---|
798 | MPI_REAL, me%win_parent_child, ierr ) |
---|
799 | ENDIF |
---|
800 | CALL MPI_WIN_UNLOCK( ip-1, me%win_parent_child, ierr ) |
---|
801 | ENDIF |
---|
802 | myindex = 1 |
---|
803 | IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans) THEN |
---|
804 | |
---|
805 | CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) ) |
---|
806 | DO ij = 1, ape%nrele |
---|
807 | data_2d(ape%locind(ij)%j,ape%locind(ij)%i) = buf(myindex) |
---|
808 | myindex = myindex + 1 |
---|
809 | ENDDO |
---|
810 | |
---|
811 | ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans) THEN |
---|
812 | |
---|
813 | CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3) ) |
---|
814 | DO ij = 1, ape%nrele |
---|
815 | data_3d(:,ape%locind(ij)%j,ape%locind(ij)%i) = & |
---|
816 | buf(myindex:myindex+ar%a_dim(1)-1) |
---|
817 | myindex = myindex+ar%a_dim(1) |
---|
818 | ENDDO |
---|
819 | |
---|
820 | ELSEIF ( ar%dimkey == 22 .AND. lo_ptrans) THEN |
---|
821 | CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) ) |
---|
822 | |
---|
823 | DO ij = 1, ape%nrele |
---|
824 | idata_2d(ape%locind(ij)%j,ape%locind(ij)%i) = ibuf(myindex) |
---|
825 | myindex = myindex + 1 |
---|
826 | ENDDO |
---|
827 | |
---|
828 | ENDIF |
---|
829 | ENDDO |
---|
830 | ENDDO |
---|
831 | |
---|
832 | END SUBROUTINE pmc_c_getbuffer |
---|
833 | |
---|
834 | |
---|
835 | |
---|
836 | SUBROUTINE pmc_c_putbuffer( waittime , particle_transfer ) |
---|
837 | |
---|
838 | IMPLICIT NONE |
---|
839 | |
---|
840 | REAL(wp), INTENT(OUT), OPTIONAL :: waittime !< |
---|
841 | LOGICAL, INTENT(IN), OPTIONAL :: particle_transfer !< |
---|
842 | |
---|
843 | LOGICAL :: lo_ptrans!< |
---|
844 | |
---|
845 | INTEGER(iwp) :: ierr !< |
---|
846 | INTEGER(iwp) :: ij !< |
---|
847 | INTEGER(iwp) :: ip !< |
---|
848 | INTEGER(iwp) :: j !< |
---|
849 | INTEGER(iwp) :: myindex !< |
---|
850 | |
---|
851 | INTEGER(iwp), DIMENSION(1) :: buf_shape !< |
---|
852 | |
---|
853 | REAL(wp) :: t1 !< |
---|
854 | REAL(wp) :: t2 !< |
---|
855 | |
---|
856 | REAL(wp), POINTER, DIMENSION(:) :: buf !< |
---|
857 | REAL(wp), POINTER, DIMENSION(:,:) :: data_2d !< |
---|
858 | REAL(wp), POINTER, DIMENSION(:,:,:) :: data_3d !< |
---|
859 | |
---|
860 | INTEGER(idp), POINTER, DIMENSION(:) :: ibuf !< |
---|
861 | INTEGER(idp), POINTER, DIMENSION(:,:) :: idata_2d !< |
---|
862 | |
---|
863 | TYPE(pedef), POINTER :: ape !< |
---|
864 | TYPE(arraydef), POINTER :: ar !< |
---|
865 | |
---|
866 | ! |
---|
867 | !-- Wait for empty buffer |
---|
868 | !-- Switch RMA epoche |
---|
869 | |
---|
870 | t1 = pmc_time() |
---|
871 | CALL MPI_BARRIER( me%intra_comm, ierr ) |
---|
872 | t2 = pmc_time() |
---|
873 | IF ( PRESENT( waittime ) ) waittime = t2 - t1 |
---|
874 | |
---|
875 | lo_ptrans = .FALSE. |
---|
876 | IF ( PRESENT( particle_transfer)) lo_ptrans = particle_transfer |
---|
877 | |
---|
878 | DO ip = 1, me%inter_npes |
---|
879 | ape => me%pes(ip) |
---|
880 | DO j = 1, ape%nr_arrays |
---|
881 | ar => aPE%array_list(j) |
---|
882 | myindex = 1 |
---|
883 | |
---|
884 | IF ( ar%dimkey == 2 .AND. .NOT.lo_ptrans ) THEN |
---|
885 | |
---|
886 | buf_shape(1) = ape%nrele |
---|
887 | CALL C_F_POINTER( ar%sendbuf, buf, buf_shape ) |
---|
888 | CALL C_F_POINTER( ar%data, data_2d, ar%a_dim(1:2) ) |
---|
889 | DO ij = 1, ape%nrele |
---|
890 | buf(myindex) = data_2d(ape%locind(ij)%j,ape%locind(ij)%i) |
---|
891 | myindex = myindex + 1 |
---|
892 | ENDDO |
---|
893 | |
---|
894 | ELSEIF ( ar%dimkey == 3 .AND. .NOT.lo_ptrans ) THEN |
---|
895 | |
---|
896 | buf_shape(1) = ape%nrele*ar%a_dim(1) |
---|
897 | CALL C_F_POINTER( ar%sendbuf, buf, buf_shape ) |
---|
898 | CALL C_F_POINTER( ar%data, data_3d, ar%a_dim(1:3) ) |
---|
899 | DO ij = 1, ape%nrele |
---|
900 | buf(myindex:myindex+ar%a_dim(1)-1) = & |
---|
901 | data_3d(:,ape%locind(ij)%j,ape%locind(ij)%i) |
---|
902 | myindex = myindex + ar%a_dim(1) |
---|
903 | ENDDO |
---|
904 | |
---|
905 | ELSE IF ( ar%dimkey == 22 .AND. lo_ptrans) THEN |
---|
906 | |
---|
907 | buf_shape(1) = ape%nrele |
---|
908 | CALL C_F_POINTER( ar%sendbuf, ibuf, buf_shape ) |
---|
909 | CALL C_F_POINTER( ar%data, idata_2d, ar%a_dim(1:2) ) |
---|
910 | |
---|
911 | DO ij = 1, ape%nrele |
---|
912 | ibuf(myindex) = idata_2d(ape%locind(ij)%j,ape%locind(ij)%i) |
---|
913 | myindex = myindex + 1 |
---|
914 | ENDDO |
---|
915 | |
---|
916 | ENDIF |
---|
917 | ENDDO |
---|
918 | ENDDO |
---|
919 | ! |
---|
920 | !-- Buffer is filled |
---|
921 | !-- Switch RMA epoche |
---|
922 | |
---|
923 | CALL MPI_Barrier(me%intra_comm, ierr) |
---|
924 | |
---|
925 | END SUBROUTINE pmc_c_putbuffer |
---|
926 | |
---|
927 | #endif |
---|
928 | END MODULE pmc_child |
---|