1 | #if defined key_mpp_mpi |
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2 | #if defined key_sp |
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3 | #define mpivar mpi_real |
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4 | #else |
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5 | #define mpivar mpi_double_precision |
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6 | #endif |
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7 | #endif |
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8 | MODULE mpp_tam |
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9 | !!====================================================================== |
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10 | !! *** MODULE mpp_tam *** |
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11 | !! NEMOTAM: Various MPP support routines |
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12 | !!====================================================================== |
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13 | |
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14 | !!---------------------------------------------------------------------- |
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15 | !! mpp_sum_reals : Sum an array of reals from all processors |
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16 | !! mpp_global_or, : Do an op operation |
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17 | !! mpp_global_max_real : Som |
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18 | !!---------------------------------------------------------------------- |
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19 | !! * Modules used |
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20 | USE par_kind, ONLY : & ! Precision variables |
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21 | & wp |
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22 | USE par_oce, ONLY : & ! Ocean parameters |
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23 | & jpnij |
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24 | USE dom_oce, ONLY : & ! Ocean space and time domain variables |
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25 | & nproc, & |
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26 | & jpiglo, & |
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27 | & jpjglo, & |
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28 | & jpi, & |
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29 | & jpj, & |
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30 | & nldi, & |
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31 | & nldj, & |
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32 | & nlei, & |
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33 | & nlej, & |
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34 | & mig, & |
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35 | & mjg |
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36 | #if defined key_mpp_mpi |
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37 | USE lib_mpp, ONLY : & ! MPP library |
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38 | & mpi_comm_opa |
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39 | #endif |
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40 | |
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41 | IMPLICIT NONE |
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42 | |
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43 | !! * Routine accessibility |
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44 | PRIVATE |
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45 | |
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46 | PUBLIC & |
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47 | & mpp_sum_reals, & |
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48 | & mpp_global_or, & |
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49 | & mpp_global_max_real, & |
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50 | & mpp_global_max_real2 |
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51 | |
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52 | CONTAINS |
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53 | |
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54 | SUBROUTINE mpp_sum_reals( pvalin, pvalout, kn ) |
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55 | !!---------------------------------------------------------------------- |
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56 | !! *** ROUTINE mpp_sum_integers *** |
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57 | !! |
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58 | !! ** Purpose : Sum all elements of a real array |
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59 | !! |
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60 | !! ** Method : MPI all reduce. |
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61 | !! |
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62 | !! ** Action : This does only work for MPI. |
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63 | !! It does not work for SHMEM. |
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64 | !! |
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65 | !! References : http://www.mpi-forum.org |
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66 | !! |
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67 | !! History : |
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68 | !! ! 07-07 (K. Mogensen) Original code |
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69 | !!---------------------------------------------------------------------- |
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70 | |
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71 | !! * Arguments |
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72 | INTEGER :: & |
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73 | & kn |
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74 | REAL(wp), DIMENSION(kn), INTENT(IN) :: & |
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75 | & pvalin |
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76 | REAL(wp), DIMENSION(kn), INTENT(OUT) :: & |
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77 | & pvalout |
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78 | |
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79 | #if defined key_mpp_mpi |
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80 | !! * Local declarations |
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81 | INTEGER :: & |
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82 | & ierr |
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83 | # include <mpif.h> |
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84 | |
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85 | !----------------------------------------------------------------------- |
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86 | ! Call the MPI library to find the sum across processors |
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87 | !----------------------------------------------------------------------- |
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88 | CALL mpi_allreduce( pvalin, pvalout, kn, mpivar, mpi_sum, & |
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89 | & mpi_comm_opa, ierr ) |
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90 | #elif defined key_mpp_shmem |
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91 | #error "Only MPI support for MPP in NEMOVAR" |
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92 | #else |
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93 | |
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94 | !----------------------------------------------------------------------- |
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95 | ! For no-MPP just return input values |
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96 | !----------------------------------------------------------------------- |
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97 | pvalout(:) = pvalin(:) |
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98 | #endif |
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99 | END SUBROUTINE mpp_sum_reals |
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100 | |
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101 | SUBROUTINE mpp_global_or( ldval ) |
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102 | !!---------------------------------------------------------------------- |
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103 | !! *** ROUTINE mpp_global_or *** |
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104 | !! |
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105 | !! ** Purpose : Apply the "or" operation for all elements in |
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106 | !! a global (jpiglo,jpjglo) array across processors |
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107 | !! |
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108 | !! ** Method : MPI allreduce |
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109 | !! |
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110 | !! ** Action : This does only work for MPI. |
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111 | !! It does not work for SHMEM. |
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112 | !! |
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113 | !! References : http://www.mpi-forum.org |
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114 | !! |
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115 | !! History : |
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116 | !! ! 08-01 (K. Mogensen) Original code |
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117 | !!---------------------------------------------------------------------- |
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118 | |
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119 | !! * Arguments |
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120 | LOGICAL, DIMENSION(jpiglo,jpjglo), INTENT(INOUT) :: & |
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121 | & ldval |
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122 | !! * Local declarations |
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123 | INTEGER :: & |
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124 | & ierr |
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125 | #if defined key_mpp_mpi |
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126 | #include <mpif.h> |
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127 | LOGICAL, DIMENSION(:,:), ALLOCATABLE :: & |
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128 | & llcp |
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129 | |
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130 | ! Copy data for input to MPI |
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131 | |
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132 | ALLOCATE( & |
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133 | & llcp(jpiglo,jpjglo) & |
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134 | & ) |
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135 | llcp(:,:) = ldval(:,:) |
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136 | |
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137 | ! Call the MPI library to find the coast lines globally |
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138 | |
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139 | CALL mpi_allreduce( llcp, ldval, jpiglo*jpjglo, mpi_logical, & |
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140 | & mpi_lor, mpi_comm_opa, ierr ) |
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141 | |
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142 | DEALLOCATE( & |
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143 | & llcp & |
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144 | & ) |
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145 | |
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146 | #elif defined key_mpp_shmem |
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147 | #error "Only MPI support for MPP in NEMOVAR" |
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148 | #endif |
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149 | |
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150 | END SUBROUTINE mpp_global_or |
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151 | |
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152 | SUBROUTINE mpp_global_max_real( zin, zout ) |
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153 | !!---------------------------------------------------------------------- |
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154 | !! *** ROUTINE mpp_global_max_real *** |
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155 | !! |
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156 | !! ** Purpose : Copy a local zin array to a global array and |
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157 | !! apply the "max" operation for all elements in |
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158 | !! a global (jpiglo,jpjglo) array across processors |
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159 | !! |
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160 | !! ** Method : MPI allreduce |
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161 | !! |
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162 | !! ** Action : This does only work for MPI. |
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163 | !! It does not work for SHMEM. |
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164 | !! |
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165 | !! References : http://www.mpi-forum.org |
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166 | !! |
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167 | !! History : |
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168 | !! ! 08-01 (K. Mogensen) Original code |
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169 | !!---------------------------------------------------------------------- |
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170 | |
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171 | !! * Arguments |
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172 | REAL(wp), DIMENSION(jpi,jpj), INTENT(IN) :: & |
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173 | & zin |
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174 | REAL(wp), DIMENSION(jpiglo,jpjglo), INTENT(OUT) :: & |
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175 | & zout |
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176 | !! * Local declarations |
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177 | INTEGER :: & |
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178 | & ierr |
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179 | #if defined key_mpp_mpi |
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180 | #include <mpif.h> |
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181 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: & |
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182 | & zcp |
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183 | INTEGER :: & |
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184 | & ji, & |
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185 | & jj |
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186 | |
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187 | ! Copy data for input to MPI |
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188 | |
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189 | ALLOCATE( & |
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190 | & zcp(jpiglo,jpjglo) & |
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191 | & ) |
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192 | zcp(:,:) = 0.0 |
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193 | DO jj = nldj, nlej |
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194 | DO ji = nldi, nlei |
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195 | zcp(mig(ji),mjg(jj)) = zin(ji,jj) |
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196 | ENDDO |
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197 | ENDDO |
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198 | |
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199 | ! Call the MPI library to find the coast lines globally |
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200 | |
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201 | CALL mpi_allreduce( zcp, zout, jpiglo*jpjglo, mpivar, & |
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202 | & mpi_max, mpi_comm_opa, ierr ) |
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203 | |
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204 | DEALLOCATE( & |
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205 | & zcp & |
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206 | & ) |
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207 | |
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208 | #elif defined key_mpp_shmem |
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209 | #error "Only MPI support for MPP in NEMOVAR" |
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210 | #else |
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211 | zout(:,:) = zin(:,:) |
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212 | #endif |
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213 | |
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214 | END SUBROUTINE mpp_global_max_real |
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215 | |
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216 | |
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217 | SUBROUTINE mpp_global_max_real2( zin, zout ) |
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218 | !!---------------------------------------------------------------------- |
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219 | !! *** ROUTINE mpp_global_max_real2 *** |
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220 | !! |
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221 | !! ** Purpose : Copy a local zin array to a global array and |
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222 | !! apply the "max" operation for all elements in |
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223 | !! a global (jpiglo,jpjglo) array across processors |
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224 | !! |
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225 | !! ** Method : MPI allreduce |
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226 | !! |
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227 | !! ** Action : This does only work for MPI. |
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228 | !! It does not work for SHMEM. |
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229 | !! |
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230 | !! References : http://www.mpi-forum.org |
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231 | !! |
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232 | !! History : |
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233 | !! ! 08-01 (K. Mogensen) Original code |
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234 | !!---------------------------------------------------------------------- |
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235 | |
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236 | !! * Arguments |
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237 | REAL(wp), DIMENSION(jpi,jpj), INTENT(IN) :: & |
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238 | & zin |
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239 | REAL(wp), DIMENSION(jpiglo,jpjglo), INTENT(OUT) :: & |
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240 | & zout |
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241 | !! * Local declarations |
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242 | INTEGER :: & |
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243 | & ierr |
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244 | #if defined key_mpp_mpi |
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245 | #include <mpif.h> |
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246 | REAL(wp), DIMENSION(:,:), ALLOCATABLE :: & |
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247 | & zcp |
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248 | INTEGER :: & |
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249 | & ji, & |
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250 | & jj |
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251 | |
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252 | ! Copy data for input to MPI |
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253 | |
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254 | ALLOCATE( & |
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255 | & zcp(jpiglo,jpjglo) & |
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256 | & ) |
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257 | zcp(:,:) = -1e+38 |
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258 | DO jj = nldj, nlej |
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259 | DO ji = nldi, nlei |
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260 | zcp(mig(ji),mjg(jj)) = zin(ji,jj) |
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261 | ENDDO |
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262 | ENDDO |
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263 | |
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264 | ! Call the MPI library to find the coast lines globally |
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265 | |
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266 | CALL mpi_allreduce( zcp, zout, jpiglo*jpjglo, mpivar, & |
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267 | & mpi_max, mpi_comm_opa, ierr ) |
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268 | |
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269 | DEALLOCATE( & |
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270 | & zcp & |
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271 | & ) |
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272 | |
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273 | #elif defined key_mpp_shmem |
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274 | #error "Only MPI support for MPP in NEMOVAR" |
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275 | #else |
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276 | zout(:,:) = zin(:,:) |
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277 | #endif |
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278 | |
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279 | END SUBROUTINE mpp_global_max_real2 |
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280 | |
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281 | END MODULE mpp_tam |
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