1 | PROGRAM palm |
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2 | |
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3 | !------------------------------------------------------------------------------! |
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4 | ! Actual revisions: |
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5 | ! ----------------- |
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6 | ! |
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7 | ! |
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8 | ! Former revisions: |
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9 | ! ----------------- |
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10 | ! $Id: palm.f90 389 2009-09-23 11:00:15Z heinze $ |
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11 | ! |
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12 | ! 215 2008-11-18 09:54:31Z raasch |
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13 | ! Initialization of coupled runs modified for MPI-1 and moved to external |
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14 | ! subroutine init_coupling |
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15 | ! |
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16 | ! 197 2008-09-16 15:29:03Z raasch |
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17 | ! Workaround for getting information about the coupling mode |
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18 | ! |
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19 | ! 108 2007-08-24 15:10:38Z letzel |
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20 | ! Get coupling mode from environment variable, change location of debug output |
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21 | ! |
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22 | ! 75 2007-03-22 09:54:05Z raasch |
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23 | ! __vtk directives removed, write_particles is called only in case of particle |
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24 | ! advection switched on, open unit 9 for debug output, |
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25 | ! setting of palm version moved from modules to here |
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26 | ! |
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27 | ! RCS Log replace by Id keyword, revision history cleaned up |
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28 | ! |
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29 | ! Revision 1.10 2006/08/04 14:53:12 raasch |
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30 | ! Distibution of run description header removed, call of header moved behind |
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31 | ! init_3d_model |
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32 | ! |
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33 | ! Revision 1.2 2001/01/25 07:15:06 raasch |
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34 | ! Program name changed to PALM, module test_variables removed. |
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35 | ! Initialization of dvrp logging as well as exit of dvrp moved to new |
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36 | ! subroutines init_dvrp_logging and close_dvrp (file init_dvrp.f90) |
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37 | ! |
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38 | ! Revision 1.1 1997/07/24 11:23:35 raasch |
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39 | ! Initial revision |
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40 | ! |
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41 | ! |
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42 | ! Description: |
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43 | ! ------------ |
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44 | ! Large-Eddy Simulation (LES) model for the convective boundary layer, |
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45 | ! optimized for use on parallel machines (implementation realized using the |
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46 | ! Message Passing Interface (MPI)). The model can also be run on vector machines |
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47 | ! (less well optimized) and workstations. Versions for the different types of |
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48 | ! machines are controlled via cpp-directives. |
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49 | ! Model runs are only feasible using the ksh-script mrun. |
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50 | !------------------------------------------------------------------------------! |
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51 | |
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52 | |
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53 | USE arrays_3d |
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54 | USE constants |
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55 | USE control_parameters |
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56 | USE cpulog |
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57 | USE dvrp_variables |
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58 | USE grid_variables |
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59 | USE indices |
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60 | USE interfaces |
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61 | USE model_1d |
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62 | USE particle_attributes |
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63 | USE pegrid |
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64 | USE spectrum |
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65 | USE statistics |
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66 | |
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67 | IMPLICIT NONE |
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68 | |
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69 | ! |
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70 | !-- Local variables |
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71 | CHARACTER (LEN=9) :: time_to_string |
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72 | CHARACTER (LEN=1) :: cdum |
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73 | INTEGER :: i, run_description_header_i(80) |
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74 | |
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75 | version = 'PALM 3.7' |
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76 | |
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77 | #if defined( __parallel ) |
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78 | ! |
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79 | !-- MPI initialisation. comm2d is preliminary set, because |
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80 | !-- it will be defined in init_pegrid but is used before in cpu_log. |
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81 | CALL MPI_INIT( ierr ) |
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82 | CALL MPI_COMM_SIZE( MPI_COMM_WORLD, numprocs, ierr ) |
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83 | CALL MPI_COMM_RANK( MPI_COMM_WORLD, myid, ierr ) |
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84 | comm_palm = MPI_COMM_WORLD |
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85 | comm2d = MPI_COMM_WORLD |
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86 | |
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87 | ! |
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88 | !-- Initialize PE topology in case of coupled runs |
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89 | CALL init_coupling |
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90 | #endif |
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91 | |
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92 | ! |
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93 | !-- Initialize measuring of the CPU-time remaining to the run |
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94 | CALL local_tremain_ini |
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95 | |
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96 | ! |
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97 | !-- Start of total CPU time measuring. |
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98 | CALL cpu_log( log_point(1), 'total', 'start' ) |
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99 | CALL cpu_log( log_point(2), 'initialisation', 'start' ) |
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100 | |
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101 | ! |
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102 | !-- Open a file for debug output |
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103 | WRITE (myid_char,'(''_'',I4.4)') myid |
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104 | OPEN( 9, FILE='DEBUG'//TRIM( coupling_char )//myid_char, FORM='FORMATTED' ) |
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105 | |
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106 | ! |
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107 | !-- Initialize dvrp logging. Also, one PE maybe split from the global |
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108 | !-- communicator for doing the dvrp output. In that case, the number of |
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109 | !-- PEs available for PALM is reduced by one and communicator comm_palm |
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110 | !-- is changed respectively. |
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111 | #if defined( __parallel ) |
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112 | CALL MPI_COMM_RANK( comm_palm, myid, ierr ) |
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113 | ! |
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114 | !-- TEST OUTPUT (TO BE REMOVED) |
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115 | WRITE(9,*) '*** coupling_mode = "', TRIM( coupling_mode ), '"' |
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116 | CALL LOCAL_FLUSH( 9 ) |
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117 | IF ( TRIM( coupling_mode ) /= 'uncoupled' ) THEN |
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118 | PRINT*, '*** PE', myid, ' Global target PE:', target_id, & |
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119 | TRIM( coupling_mode ) |
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120 | ENDIF |
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121 | #endif |
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122 | |
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123 | CALL init_dvrp_logging |
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124 | |
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125 | ! |
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126 | !-- Read control parameters from NAMELIST files and read environment-variables |
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127 | CALL parin |
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128 | |
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129 | ! |
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130 | !-- Determine processor topology and local array indices |
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131 | CALL init_pegrid |
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132 | |
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133 | ! |
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134 | !-- Generate grid parameters |
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135 | CALL init_grid |
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136 | |
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137 | ! |
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138 | !-- Check control parameters and deduce further quantities |
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139 | CALL check_parameters |
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140 | |
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141 | ! |
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142 | !-- Initialize all necessary variables |
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143 | CALL init_3d_model |
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144 | |
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145 | ! |
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146 | !-- Output of program header |
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147 | IF ( myid == 0 ) CALL header |
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148 | |
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149 | CALL cpu_log( log_point(2), 'initialisation', 'stop' ) |
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150 | |
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151 | ! |
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152 | !-- Set start time in format hh:mm:ss |
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153 | simulated_time_chr = time_to_string( simulated_time ) |
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154 | |
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155 | ! |
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156 | !-- If required, output of initial arrays |
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157 | IF ( do2d_at_begin ) THEN |
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158 | CALL data_output_2d( 'xy', 0 ) |
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159 | CALL data_output_2d( 'xz', 0 ) |
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160 | CALL data_output_2d( 'yz', 0 ) |
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161 | ENDIF |
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162 | IF ( do3d_at_begin ) THEN |
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163 | CALL data_output_3d( 0 ) |
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164 | ENDIF |
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165 | |
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166 | ! |
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167 | !-- Integration of the model equations using the leap-frog scheme |
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168 | CALL time_integration |
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169 | |
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170 | ! |
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171 | !-- If required, write binary data for model continuation runs |
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172 | IF ( write_binary(1:4) == 'true' ) CALL write_3d_binary |
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173 | |
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174 | ! |
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175 | !-- If required, write binary particle data |
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176 | IF ( particle_advection ) CALL write_particles |
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177 | |
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178 | ! |
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179 | !-- If required, repeat output of header including the required CPU-time |
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180 | IF ( myid == 0 ) CALL header |
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181 | |
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182 | ! |
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183 | !-- If required, final user-defined actions, and |
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184 | !-- last actions on the open files and close files. Unit 14 was opened |
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185 | !-- in write_3d_binary but it is closed here, to allow writing on this |
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186 | !-- unit in routine user_last_actions. |
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187 | CALL cpu_log( log_point(4), 'last actions', 'start' ) |
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188 | CALL user_last_actions |
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189 | IF ( write_binary(1:4) == 'true' ) CALL close_file( 14 ) |
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190 | CALL close_file( 0 ) |
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191 | CALL close_dvrp |
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192 | CALL cpu_log( log_point(4), 'last actions', 'stop' ) |
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193 | |
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194 | #if defined( __mpi2 ) |
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195 | ! |
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196 | !-- Test exchange via intercommunicator in case of a MPI-2 coupling |
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197 | IF ( coupling_mode == 'atmosphere_to_ocean' ) THEN |
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198 | i = 12345 + myid |
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199 | CALL MPI_SEND( i, 1, MPI_INTEGER, myid, 11, comm_inter, ierr ) |
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200 | ELSEIF ( coupling_mode == 'ocean_to_atmosphere' ) THEN |
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201 | CALL MPI_RECV( i, 1, MPI_INTEGER, myid, 11, comm_inter, status, ierr ) |
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202 | PRINT*, '### myid: ', myid, ' received from atmosphere: i = ', i |
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203 | ENDIF |
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204 | #endif |
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205 | |
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206 | ! |
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207 | !-- Take final CPU-time for CPU-time analysis |
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208 | CALL cpu_log( log_point(1), 'total', 'stop' ) |
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209 | CALL cpu_statistics |
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210 | |
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211 | #if defined( __parallel ) |
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212 | CALL MPI_FINALIZE( ierr ) |
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213 | #endif |
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214 | |
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215 | END PROGRAM palm |
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