1 | SUBROUTINE check_for_restart |
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2 | |
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3 | !--------------------------------------------------------------------------------! |
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4 | ! This file is part of PALM. |
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5 | ! |
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6 | ! PALM is free software: you can redistribute it and/or modify it under the terms |
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7 | ! of the GNU General Public License as published by the Free Software Foundation, |
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8 | ! either version 3 of the License, or (at your option) any later version. |
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9 | ! |
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10 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY |
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11 | ! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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12 | ! A PARTICULAR PURPOSE. See the GNU General Public License for more details. |
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13 | ! |
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14 | ! You should have received a copy of the GNU General Public License along with |
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15 | ! PALM. If not, see <http://www.gnu.org/licenses/>. |
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16 | ! |
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17 | ! Copyright 1997-2012 Leibniz University Hannover |
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18 | !--------------------------------------------------------------------------------! |
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19 | ! |
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20 | ! Current revisions: |
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21 | ! ----------------- |
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22 | ! |
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23 | ! |
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24 | ! Former revisions: |
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25 | ! ----------------- |
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26 | ! $Id: check_for_restart.f90 1037 2012-10-22 14:10:22Z witha $ |
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27 | ! |
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28 | ! 1036 2012-10-22 13:43:42Z raasch |
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29 | ! code put under GPL (PALM 3.9) |
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30 | ! |
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31 | ! 1032 2012-10-21 13:03:21Z letzel |
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32 | ! minor reformatting |
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33 | ! |
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34 | ! 667 2010-12-23 12:06:00Z suehring/gryschka |
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35 | ! Exchange of terminate_coupled between ocean and atmosphere by PE0 |
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36 | ! |
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37 | ! 622 2010-12-10 08:08:13Z raasch |
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38 | ! optional barriers included in order to speed up collective operations |
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39 | ! |
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40 | ! 291 2009-04-16 12:07:26Z raasch |
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41 | ! Coupling with independent precursor runs. |
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42 | ! Output of messages replaced by message handling routine |
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43 | ! |
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44 | ! 222 2009-01-12 16:04:16Z letzel |
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45 | ! Implementation of an MPI-1 coupling: replaced myid with target_id |
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46 | ! Bugfix for nonparallel execution |
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47 | ! |
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48 | ! 108 2007-08-24 15:10:38Z letzel |
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49 | ! modifications to terminate coupled runs |
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50 | ! |
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51 | ! RCS Log replace by Id keyword, revision history cleaned up |
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52 | ! |
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53 | ! Revision 1.11 2007/02/11 12:55:13 raasch |
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54 | ! Informative output to the job protocol |
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55 | ! |
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56 | ! Revision 1.1 1998/03/18 20:06:51 raasch |
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57 | ! Initial revision |
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58 | ! |
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59 | ! |
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60 | ! Description: |
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61 | ! ------------ |
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62 | ! Set stop flag, if restart is neccessary because of expiring cpu-time or |
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63 | ! if it is forced by user |
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64 | !------------------------------------------------------------------------------! |
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65 | |
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66 | USE pegrid |
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67 | USE control_parameters |
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68 | |
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69 | IMPLICIT NONE |
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70 | |
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71 | |
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72 | LOGICAL :: terminate_run_l |
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73 | REAL :: remaining_time |
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74 | |
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75 | |
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76 | ! |
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77 | !-- Check remaining CPU-time |
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78 | CALL local_tremain( remaining_time ) |
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79 | |
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80 | ! |
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81 | !-- If necessary set a flag to stop the model run |
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82 | terminate_run_l = .FALSE. |
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83 | IF ( remaining_time <= termination_time_needed .AND. & |
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84 | write_binary(1:4) == 'true' ) THEN |
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85 | |
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86 | terminate_run_l = .TRUE. |
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87 | ENDIF |
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88 | |
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89 | #if defined( __parallel ) |
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90 | ! |
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91 | !-- Make a logical OR for all processes. Stop the model run if at least |
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92 | !-- one processor has reached the time limit. |
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93 | IF ( collective_wait ) CALL MPI_BARRIER( comm2d, ierr ) |
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94 | CALL MPI_ALLREDUCE( terminate_run_l, terminate_run, 1, MPI_LOGICAL, & |
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95 | MPI_LOR, comm2d, ierr ) |
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96 | #else |
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97 | terminate_run = terminate_run_l |
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98 | #endif |
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99 | |
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100 | ! |
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101 | !-- Output that job will be terminated |
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102 | IF ( terminate_run .AND. myid == 0 ) THEN |
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103 | WRITE( message_string, * ) 'run will be terminated because it is ', & |
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104 | 'running out of job cpu limit & ', & |
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105 | 'remaining time: ', remaining_time, ' s', & |
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106 | 'termination time needed:', termination_time_needed, ' s' |
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107 | CALL message( 'check_for_restart', 'PA0163', 0, 1, 0, 6, 0 ) |
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108 | ENDIF |
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109 | |
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110 | ! |
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111 | !-- In case of coupled runs inform the remote model of the termination |
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112 | !-- and its reason, provided the remote model has not already been |
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113 | !-- informed of another termination reason (terminate_coupled > 0) before, |
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114 | !-- or vice versa (terminate_coupled_remote > 0). |
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115 | IF ( terminate_run .AND. TRIM( coupling_mode ) /= 'uncoupled' .AND. & |
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116 | terminate_coupled == 0 .AND. terminate_coupled_remote == 0 ) THEN |
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117 | |
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118 | terminate_coupled = 3 |
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119 | #if defined( __parallel ) |
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120 | IF ( myid == 0 ) THEN |
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121 | CALL MPI_SENDRECV( terminate_coupled, 1, MPI_INTEGER, & |
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122 | target_id, 0, & |
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123 | terminate_coupled_remote, 1, MPI_INTEGER, & |
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124 | target_id, 0, & |
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125 | comm_inter, status, ierr ) |
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126 | ENDIF |
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127 | CALL MPI_BCAST( terminate_coupled_remote, 1, MPI_INTEGER, 0, comm2d, & |
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128 | ierr ) |
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129 | #endif |
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130 | ENDIF |
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131 | |
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132 | ! |
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133 | !-- Set the stop flag also, if restart is forced by user |
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134 | IF ( time_restart /= 9999999.9 .AND. & |
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135 | time_restart < time_since_reference_point ) THEN |
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136 | |
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137 | ! |
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138 | !-- Restart is not neccessary, if the end time of the run (given by |
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139 | !-- the user) has been reached |
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140 | IF ( simulated_time < end_time ) THEN |
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141 | terminate_run = .TRUE. |
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142 | ! |
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143 | !-- Increment restart time, if forced by user, otherwise set restart |
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144 | !-- time to default (no user restart) |
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145 | IF ( dt_restart /= 9999999.9 ) THEN |
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146 | time_restart = time_restart + dt_restart |
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147 | ELSE |
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148 | time_restart = 9999999.9 |
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149 | ENDIF |
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150 | |
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151 | WRITE( message_string, * ) 'run will be terminated due to user ', & |
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152 | 'settings of', & |
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153 | '&restart_time / dt_restart', & |
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154 | '&new restart time is: ', time_restart, ' s' |
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155 | CALL message( 'check_for_restart', 'PA0164', 0, 0, 0, 6, 0 ) |
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156 | |
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157 | ! |
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158 | !-- In case of coupled runs inform the remote model of the termination |
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159 | !-- and its reason, provided the remote model has not already been |
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160 | !-- informed of another termination reason (terminate_coupled > 0) before, |
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161 | !-- or vice versa (terminate_coupled_remote > 0). |
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162 | IF ( coupling_mode /= 'uncoupled' .AND. terminate_coupled == 0 & |
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163 | .AND. terminate_coupled_remote == 0 ) THEN |
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164 | |
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165 | IF ( dt_restart /= 9999999.9 ) THEN |
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166 | terminate_coupled = 4 |
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167 | ELSE |
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168 | terminate_coupled = 5 |
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169 | ENDIF |
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170 | #if defined( __parallel ) |
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171 | IF ( myid == 0 ) THEN |
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172 | CALL MPI_SENDRECV( terminate_coupled, 1, MPI_INTEGER, & |
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173 | target_id, 0, & |
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174 | terminate_coupled_remote, 1, MPI_INTEGER, & |
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175 | target_id, 0, & |
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176 | comm_inter, status, ierr ) |
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177 | ENDIF |
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178 | CALL MPI_BCAST( terminate_coupled_remote, 1, MPI_INTEGER, 0, & |
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179 | comm2d, ierr ) |
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180 | #endif |
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181 | ENDIF |
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182 | ELSE |
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183 | time_restart = 9999999.9 |
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184 | ENDIF |
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185 | ENDIF |
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186 | |
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187 | ! |
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188 | !-- If the run is stopped, set a flag file which is necessary to initiate |
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189 | !-- the start of a continuation run |
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190 | IF ( terminate_run .AND. myid == 0 ) THEN |
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191 | |
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192 | OPEN ( 90, FILE='CONTINUE_RUN', FORM='FORMATTED' ) |
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193 | WRITE ( 90, '(A)' ) TRIM( run_description_header ) |
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194 | CLOSE ( 90 ) |
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195 | |
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196 | ENDIF |
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197 | |
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198 | |
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199 | END SUBROUTINE check_for_restart |
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