1 | ! Definition and allocation of parallel datas. |
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2 | ! Initialization of parallel or sequentiel IOs. |
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3 | ! Definition of Load Balancing functions. |
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4 | |
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5 | !- |
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6 | !- $Header: /home/ssipsl/CVSREP/ORCHIDEE/src_parallel/data_para.f90,v 1.7 2010/04/06 14:31:57 ssipsl Exp $ |
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7 | !- |
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8 | |
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9 | MODULE data_para |
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10 | |
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11 | !- |
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12 | USE defprec |
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13 | USE ioipsl |
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14 | !- |
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15 | #include "src_parallel.h" |
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16 | !- |
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17 | !- |
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18 | ! Unit for output messages |
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19 | INTEGER(i_std), SAVE :: numout = 6 |
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20 | |
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21 | INTEGER, SAVE :: mpi_size !! Number of parallel processes |
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22 | INTEGER, SAVE :: mpi_rank !! my rank num |
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23 | INTEGER, SAVE :: root_prc !! rank of root proc |
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24 | LOGICAL, SAVE :: is_root_prc !! Only root proc is true |
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25 | INTEGER, SAVE :: nbp_loc !! number of local continental points |
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26 | INTEGER, SAVE :: nbp_glo !! number of global continental points |
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27 | INTEGER,SAVE,ALLOCATABLE,DIMENSION(:) :: nbp_para_nb |
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28 | INTEGER,SAVE,ALLOCATABLE,DIMENSION(:) :: nbp_para_begin |
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29 | INTEGER,SAVE,ALLOCATABLE,DIMENSION(:) :: nbp_para_end |
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30 | |
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31 | INTEGER,SAVE :: iim_g, jjm_g !! Dimension of global fields |
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32 | ! i x j 2D points (not land points) index |
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33 | INTEGER,SAVE,allocatable,dimension(:) :: ij_para_nb ! Number of 2D points for each mpi_rank block |
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34 | INTEGER,SAVE,allocatable,dimension(:) :: ij_para_begin ! First 2D point for each mpi_rank block |
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35 | INTEGER,SAVE,allocatable,dimension(:) :: ij_para_end ! Last 2D point for each mpi_rank block |
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36 | ! i 2D index |
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37 | INTEGER,SAVE,allocatable,dimension(:) :: ii_para_begin ! First i index of 2D point for each mpi_rank block |
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38 | INTEGER,SAVE,allocatable,dimension(:) :: ii_para_end ! Last i index of 2D point for each mpi_rank block |
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39 | ! j 2D index |
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40 | INTEGER,SAVE,allocatable,dimension(:) :: jj_para_nb ! Number of complete j lines for each mpi_rank block |
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41 | INTEGER,SAVE,allocatable,dimension(:) :: jj_para_begin ! First j index of 2D point for each mpi_rank block |
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42 | INTEGER,SAVE,allocatable,dimension(:) :: jj_para_end ! Last j index of 2D point for each mpi_rank block |
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43 | |
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44 | INTEGER,SAVE :: ii_begin |
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45 | INTEGER,SAVE :: ii_end |
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46 | INTEGER,SAVE :: jj_begin |
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47 | INTEGER,SAVE :: jj_end |
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48 | INTEGER,SAVE :: jj_nb |
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49 | INTEGER,SAVE :: ij_begin |
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50 | INTEGER,SAVE :: ij_end |
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51 | INTEGER,SAVE :: ij_nb |
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52 | |
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53 | |
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54 | !! Global array used by stomate and sechiba |
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55 | !- |
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56 | !! index of land points on the 2D map |
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57 | INTEGER(i_std),ALLOCATABLE,DIMENSION(:),SAVE :: index_g |
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58 | !- |
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59 | !! indices of the 4 neighbours of each grid point (1=N, 2=E, 3=S, 4=W) |
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60 | INTEGER(i_std),ALLOCATABLE,DIMENSION(:,:),SAVE :: neighbours_g |
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61 | !- |
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62 | !! resolution at each grid point in m (1=E-W, 2=N-S) |
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63 | REAL(r_std),ALLOCATABLE,DIMENSION(:,:),SAVE :: resolution_g |
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64 | REAL(r_std),ALLOCATABLE,DIMENSION(:),SAVE :: area_g |
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65 | !- |
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66 | !! Geographical coordinates |
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67 | REAL(r_std),ALLOCATABLE,DIMENSION(:,:),SAVE :: lalo_g |
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68 | ! Global grid, for all process |
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69 | REAL(r_std), ALLOCATABLE, DIMENSION(:,:), SAVE :: lon_g, lat_g, zlev_g |
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70 | !- |
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71 | !! Fraction of continents |
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72 | REAL(r_std),ALLOCATABLE,DIMENSION(:),SAVE :: contfrac_g |
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73 | |
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74 | INTEGER, SAVE :: MPI_COMM_ORCH |
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75 | INTEGER, SAVE :: MPI_REAL_ORCH |
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76 | INTEGER, SAVE :: MPI_INT_ORCH |
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77 | LOGICAL, SAVE :: cpl_lmdz |
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78 | |
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79 | INTEGER, SAVE :: orch_domain_id |
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80 | |
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81 | CONTAINS |
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82 | |
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83 | SUBROUTINE init_para(cpl_lmdz_x, communicator) |
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84 | |
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85 | IMPLICIT NONE |
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86 | |
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87 | #ifdef CPP_PARA |
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88 | INCLUDE 'mpif.h' |
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89 | #endif |
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90 | LOGICAL :: cpl_lmdz_x |
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91 | INTEGER,OPTIONAL :: communicator |
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92 | INTEGER :: ierr |
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93 | CHARACTER(LEN=20) :: filename |
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94 | INTEGER :: i, div |
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95 | CHARACTER(LEN=4) :: num |
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96 | LOGICAL, PARAMETER :: check = .FALSE. |
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97 | |
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98 | cpl_lmdz=cpl_lmdz_x |
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99 | |
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100 | #ifdef CPP_PARA |
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101 | ! Orchidee communicator : |
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102 | IF (.NOT. cpl_lmdz) THEN |
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103 | CALL MPI_INIT(ierr) |
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104 | IF (ierr /= 0) THEN |
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105 | WRITE(*,*) 'INIT_PARA : MPI_INIT failed with ',ierr |
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106 | STOP "INIT_PARA" |
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107 | ENDIF |
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108 | MPI_COMM_ORCH=MPI_COMM_WORLD |
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109 | ELSE |
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110 | MPI_COMM_ORCH=communicator |
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111 | ENDIF |
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112 | |
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113 | |
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114 | ! Int and real precision |
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115 | IF (MPI_VERSION == 1) THEN |
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116 | ! Version MPI 1.x |
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117 | IF (i_std==i_4) THEN |
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118 | MPI_INT_ORCH=MPI_INTEGER |
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119 | ELSEIF (i_std==i_8) THEN |
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120 | MPI_INT_ORCH=MPI_INTEGER |
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121 | ELSE |
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122 | MPI_INT_ORCH=MPI_INTEGER |
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123 | ENDIF |
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124 | |
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125 | IF (r_std==r_4) THEN |
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126 | MPI_REAL_ORCH=MPI_REAL |
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127 | ELSEIF (r_std==r_8) THEN |
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128 | MPI_REAL_ORCH=MPI_DOUBLE_PRECISION |
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129 | ELSE |
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130 | MPI_REAL_ORCH=MPI_REAL |
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131 | ENDIF |
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132 | ELSE |
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133 | ! Others MPI |
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134 | IF (i_std==i_4) THEN |
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135 | MPI_INT_ORCH=MPI_INTEGER4 |
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136 | ELSEIF (i_std==i_8) THEN |
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137 | MPI_INT_ORCH=MPI_INTEGER8 |
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138 | ELSE |
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139 | MPI_INT_ORCH=MPI_INTEGER |
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140 | ENDIF |
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141 | |
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142 | IF (r_std==r_4) THEN |
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143 | MPI_REAL_ORCH=MPI_REAL4 |
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144 | ELSEIF (r_std==r_8) THEN |
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145 | MPI_REAL_ORCH=MPI_REAL8 |
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146 | ELSE |
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147 | MPI_REAL_ORCH=MPI_REAL |
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148 | ENDIF |
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149 | ENDIF |
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150 | |
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151 | CALL MPI_COMM_SIZE(MPI_COMM_ORCH,mpi_size,ierr) |
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152 | IF (ierr /= 0) THEN |
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153 | WRITE(*,*) 'INIT_PARA : MPI_COMM_SIZE failed with ',ierr |
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154 | STOP "INIT_PARA" |
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155 | ENDIF |
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156 | CALL MPI_COMM_RANK(MPI_COMM_ORCH,mpi_rank,ierr) |
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157 | IF (ierr /= 0) THEN |
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158 | WRITE(*,*) 'INIT_PARA : MPI_COMM_RANK failed with ',ierr |
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159 | STOP "INIT_PARA" |
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160 | ENDIF |
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161 | |
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162 | #else |
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163 | mpi_rank=0 |
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164 | mpi_size=1 |
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165 | #endif |
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166 | root_prc=0 |
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167 | |
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168 | IF (mpi_rank==0) THEN |
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169 | is_root_prc=.TRUE. |
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170 | ELSE |
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171 | is_root_prc=.FALSE. |
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172 | ENDIF |
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173 | |
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174 | ! Open mpi_rank outputs or select stdout |
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175 | IF (mpi_size > 1) THEN |
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176 | write(num,'(I4.4)') mpi_rank |
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177 | |
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178 | numout = 100 |
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179 | |
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180 | filename = 'out_orchidee_'//num |
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181 | |
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182 | OPEN(UNIT=numout,FILE=TRIM(filename),ACTION='write',STATUS='unknown',FORM='formatted',IOSTAT=ierr) |
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183 | IF (ierr /= 0) THEN |
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184 | #ifdef CPP_PARA |
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185 | CALL MPI_FINALIZE(ierr) |
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186 | #endif |
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187 | WRITE(*,*) "Erreur can't open file ", filename |
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188 | STOP "INIT_PARA" |
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189 | ENDIF |
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190 | ELSE |
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191 | numout = 6 |
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192 | ENDIF |
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193 | |
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194 | IF (check) THEN |
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195 | #ifdef CPP_PARA |
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196 | WRITE(numout,*) 'version MPI ', MPI_VERSION, MPI_SUBVERSION |
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197 | WRITE(numout,*) 'INTEGERS ',MPI_INTEGER4,MPI_INTEGER8,MPI_INTEGER,MPI_INT_ORCH |
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198 | WRITE(numout,*) 'REALS ',MPI_REAL4,MPI_REAL8,MPI_REAL,MPI_REAL_ORCH |
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199 | #endif |
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200 | WRITE(numout,*) 'RANK ',mpi_rank,' SIZE ',mpi_size |
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201 | WRITE(numout,*) "Am I root process ?",is_root_prc |
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202 | WRITE(numout,*) "Init_para : For process number ",mpi_rank, "output file = ",filename |
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203 | ENDIF |
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204 | |
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205 | END SUBROUTINE init_para |
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206 | |
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207 | SUBROUTINE init_data_para(iim,jjm,nbpoints,index_x) |
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208 | |
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209 | IMPLICIT NONE |
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210 | #ifdef CPP_PARA |
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211 | INCLUDE 'mpif.h' |
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212 | #endif |
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213 | |
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214 | INTEGER,INTENT(IN) :: iim |
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215 | INTEGER,INTENT(IN) :: jjm |
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216 | INTEGER,INTENT(IN) :: nbpoints |
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217 | INTEGER,DIMENSION(:),INTENT(IN) :: index_x |
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218 | |
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219 | INTEGER,ALLOCATABLE,DIMENSION(:) :: index_l |
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220 | INTEGER,ALLOCATABLE,DIMENSION(:) :: displs |
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221 | #ifdef CPP_PARA |
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222 | INTEGER :: ierr |
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223 | #endif |
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224 | INTEGER :: i |
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225 | LOGICAL, PARAMETER :: check=.FALSE. |
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226 | |
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227 | |
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228 | IF (check) WRITE(numout,*) 'INIT_DATA_PARA',iim,jjm,nbpoints,index_x |
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229 | ALLOCATE(nbp_para_nb(0:mpi_size-1)) |
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230 | ALLOCATE(nbp_para_begin(0:mpi_size-1)) |
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231 | ALLOCATE(nbp_para_end(0:mpi_size-1)) |
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232 | ALLOCATE(jj_para_nb(0:mpi_size-1)) |
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233 | ALLOCATE(jj_para_begin(0:mpi_size-1)) |
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234 | ALLOCATE(jj_para_end(0:mpi_size-1)) |
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235 | ALLOCATE(ii_para_begin(0:mpi_size-1)) |
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236 | ALLOCATE(ii_para_end(0:mpi_size-1)) |
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237 | ALLOCATE(ij_para_nb(0:mpi_size-1)) |
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238 | ALLOCATE(ij_para_begin(0:mpi_size-1)) |
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239 | ALLOCATE(ij_para_end(0:mpi_size-1)) |
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240 | |
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241 | IF (cpl_lmdz) THEN |
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242 | #ifdef CPP_PARA |
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243 | CALL MPI_GATHER(nbpoints,1,MPI_INT_ORCH,nbp_para_nb,1,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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244 | #else |
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245 | nbp_para_nb(0)=nbpoints |
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246 | #endif |
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247 | |
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248 | IF (is_root_prc) THEN |
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249 | nbp_glo=sum(nbp_para_nb) |
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250 | ALLOCATE(displs(0:mpi_size-1)) |
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251 | ALLOCATE(index_l(nbp_glo)) |
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252 | displs(0)=0 |
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253 | DO i=1,mpi_size-1 |
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254 | displs(i)=displs(i-1)+nbp_para_nb(i-1) |
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255 | ENDDO |
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256 | ENDIF |
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257 | #ifdef CPP_PARA |
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258 | CALL MPI_BCAST(nbp_glo,1,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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259 | CALL MPI_GATHERV(index_x,nbpoints,MPI_INT_ORCH,index_l,nbp_para_nb,displs,& |
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260 | MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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261 | #else |
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262 | ! if not parallized, nb_glo=nbpoints=nbp_para_nb |
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263 | IF (is_root_prc) index_l(:)=index_x(1:nbp_glo) |
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264 | #endif |
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265 | ELSE |
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266 | IF (is_root_prc) THEN |
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267 | nbp_glo=nbpoints |
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268 | ALLOCATE(index_l(nbp_glo)) |
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269 | index_l(:)=index_x(1:nbp_glo) |
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270 | CALL Read_Load_Balance(nbpoints,nbp_para_nb) |
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271 | ENDIF |
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272 | ENDIF |
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273 | |
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274 | IF (is_root_prc) THEN |
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275 | |
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276 | IF (check) WRITE(numout,*) '==== DISTRIB ====',nbpoints,nbp_para_nb |
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277 | |
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278 | nbp_para_begin(0)=1 |
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279 | nbp_para_end(0)=nbp_para_nb(0) |
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280 | |
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281 | DO i=1,mpi_size-1 |
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282 | nbp_para_begin(i)=nbp_para_end(i-1)+1 |
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283 | nbp_para_end(i)=nbp_para_begin(i)+nbp_para_nb(i)-1 |
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284 | ENDDO |
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285 | |
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286 | nbp_loc=nbp_para_nb(mpi_rank) |
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287 | |
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288 | iim_g=iim |
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289 | jjm_g=jjm |
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290 | |
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291 | |
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292 | ij_para_begin(0)=1 |
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293 | ij_para_end(0)=index_l(nbp_para_end(0)) |
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294 | ij_para_nb(0)=ij_para_end(0)-ij_para_begin(0)+1 |
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295 | |
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296 | DO i=1,mpi_size-1 |
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297 | ij_para_begin(i)=ij_para_end(i-1)+1 |
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298 | ij_para_end(i)=index_l(nbp_para_end(i)) |
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299 | ij_para_nb(i)=ij_para_end(i)-ij_para_begin(i)+1 |
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300 | ENDDO |
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301 | |
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302 | ij_para_end(mpi_size-1)=iim*jjm |
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303 | ij_para_nb(mpi_size-1)=ij_para_end(mpi_size-1)-ij_para_begin(mpi_size-1)+1 |
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304 | |
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305 | |
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306 | DO i=0,mpi_size-1 |
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307 | jj_para_begin(i)=(ij_para_begin(i)-1)/iim + 1 |
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308 | jj_para_end(i)=(ij_para_end(i)-1)/iim + 1 |
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309 | jj_para_nb(i)=jj_para_end(i)-jj_para_begin(i)+1 |
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310 | |
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311 | ii_para_begin(i)=MOD(ij_para_begin(i)-1,iim)+1 |
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312 | ii_para_end(i)=MOD(ij_para_end(i)-1,iim)+1 |
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313 | ENDDO |
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314 | |
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315 | IF (check) THEN |
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316 | WRITE(numout,*) '==== DECOUP ====' |
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317 | WRITE(numout,*) 'nbp_para_begin=',nbp_para_begin |
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318 | WRITE(numout,*) 'nbp_para_end =',nbp_para_end |
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319 | WRITE(numout,*) 'nbp_loc=',nbp_loc |
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320 | |
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321 | WRITE(numout,*) 'ij_para_begin=',ij_para_begin |
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322 | WRITE(numout,*) 'ij_para_end=',ij_para_end |
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323 | WRITE(numout,*) 'ij_para_nb=',ij_para_nb |
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324 | WRITE(numout,*) 'jj_para_begin=',jj_para_begin |
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325 | WRITE(numout,*) 'jj_para_end=',jj_para_end |
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326 | WRITE(numout,*) 'jj_para_nb=',jj_para_nb |
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327 | WRITE(numout,*) 'ii_para_begin=',ii_para_begin |
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328 | WRITE(numout,*) 'ii_para_end=',ii_para_end |
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329 | ENDIF |
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330 | |
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331 | ! |
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332 | !- Root need the global variables |
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333 | !- |
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334 | ALLOCATE(resolution_g(nbp_glo,2),area_g(nbp_glo),lalo_g(nbp_glo,2)) |
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335 | ALLOCATE(neighbours_g(nbp_glo,8),contfrac_g(nbp_glo),index_g(nbp_glo)) |
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336 | ALLOCATE(lon_g(iim_g, jjm_g), lat_g(iim_g, jjm_g), zlev_g(iim_g, jjm_g)) |
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337 | |
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338 | index_g(:)=index_l(1:nbp_glo) |
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339 | ENDIF |
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340 | |
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341 | #ifdef CPP_PARA |
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342 | IF (is_root_prc) WRITE(numout,*) 'nbp_para_nb =',nbp_para_nb |
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343 | CALL MPI_BCAST(nbp_para_nb,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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344 | CALL MPI_BCAST(nbp_para_begin,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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345 | CALL MPI_BCAST(nbp_para_end,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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346 | CALL MPI_BCAST(jj_para_nb,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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347 | CALL MPI_BCAST(jj_para_begin,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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348 | CALL MPI_BCAST(jj_para_end,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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349 | CALL MPI_BCAST(ii_para_begin,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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350 | CALL MPI_BCAST(ii_para_end,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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351 | CALL MPI_BCAST(ij_para_nb,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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352 | CALL MPI_BCAST(ij_para_begin,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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353 | CALL MPI_BCAST(ij_para_end,mpi_size,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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354 | CALL MPI_BCAST(iim_g,1,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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355 | CALL MPI_BCAST(jjm_g,1,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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356 | CALL MPI_BCAST(nbp_glo,1,MPI_INT_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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357 | #endif |
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358 | |
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359 | nbp_loc=nbp_para_nb(mpi_rank) |
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360 | |
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361 | ij_nb=ij_para_nb(mpi_rank) |
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362 | ij_begin=ij_para_begin(mpi_rank) |
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363 | ij_end=ij_para_end(mpi_rank) |
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364 | |
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365 | jj_nb=jj_para_nb(mpi_rank) |
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366 | jj_begin=jj_para_begin(mpi_rank) |
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367 | jj_end=jj_para_end(mpi_rank) |
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368 | |
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369 | ii_begin=ii_para_begin(mpi_rank) |
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370 | ii_end=ii_para_end(mpi_rank) |
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371 | |
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372 | IF (check) & |
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373 | WRITE(numout,*) 'Init_io_para' |
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374 | CALL Init_io_para |
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375 | |
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376 | IF (is_root_prc ) THEN |
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377 | DEALLOCATE(index_l) |
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378 | IF ( cpl_lmdz) THEN |
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379 | DEALLOCATE(displs) |
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380 | ENDIF |
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381 | ENDIF |
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382 | |
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383 | IF (check) & |
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384 | WRITE(numout,*) 'DATA PARA',nbp_loc,nbp_glo,jj_begin,jj_end,ii_begin,ii_end |
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385 | END SUBROUTINE init_data_para |
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386 | |
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387 | |
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388 | SUBROUTINE Init_io_para |
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389 | USE ioipsl |
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390 | IMPLICIT NONE |
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391 | |
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392 | INTEGER,DIMENSION(2) :: ddid |
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393 | INTEGER,DIMENSION(2) :: dsg |
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394 | INTEGER,DIMENSION(2) :: dsl |
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395 | INTEGER,DIMENSION(2) :: dpf |
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396 | INTEGER,DIMENSION(2) :: dpl |
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397 | INTEGER,DIMENSION(2) :: dhs |
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398 | INTEGER,DIMENSION(2) :: dhe |
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399 | |
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400 | ddid=(/ 1,2 /) |
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401 | dsg=(/ iim_g, jjm_g /) |
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402 | dsl=(/ iim_g, jj_nb /) |
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403 | dpf=(/ 1,jj_begin /) |
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404 | dpl=(/ iim_g, jj_end /) |
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405 | dhs=(/ ii_begin-1,0 /) |
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406 | if (mpi_rank==mpi_size-1) then |
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407 | dhe=(/0,0/) |
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408 | else |
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409 | dhe=(/ iim_g-ii_end,0 /) |
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410 | endif |
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411 | |
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412 | call flio_dom_set(mpi_size,mpi_rank,ddid,dsg,dsl,dpf,dpl,dhs,dhe, & |
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413 | 'APPLE',orch_domain_id) |
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414 | END SUBROUTINE Init_io_para |
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415 | |
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416 | SUBROUTINE Read_Load_balance(NbPoints,Nbpoints_loc) |
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417 | |
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418 | IMPLICIT NONE |
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419 | INTEGER,INTENT(IN) :: NbPoints |
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420 | INTEGER,INTENT(OUT) :: Nbpoints_loc(0:mpi_size-1) |
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421 | #ifdef CPP_PARA |
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422 | INTEGER :: unit_number=10 |
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423 | CHARACTER(len=255) :: filename='Load_balance_orchidee.dat' |
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424 | INTEGER :: j |
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425 | #endif |
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426 | INTEGER :: i,s,ierr |
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427 | |
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428 | Nbpoints_loc(:) = 0 |
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429 | |
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430 | #ifdef CPP_PARA |
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431 | OPEN(UNIT=unit_number,FILE=trim(filename),STATUS='old',FORM='formatted',IOSTAT=ierr) |
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432 | #else |
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433 | ierr=1 |
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434 | #endif |
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435 | s=0 |
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436 | |
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437 | #ifdef CPP_PARA |
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438 | IF (ierr==0) THEN |
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439 | i=0 |
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440 | !- Reading for any balancing file (even with a bad structure) |
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441 | DO WHILE (i < mpi_size .AND. ierr == 0) |
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442 | READ (unit_number,*,IOSTAT=ierr) j,Nbpoints_loc(i) |
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443 | s=s+Nbpoints_loc(i) |
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444 | i=i+1 |
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445 | ENDDO |
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446 | CLOSE(unit_number) |
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447 | ENDIF |
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448 | #endif |
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449 | |
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450 | !- Correction of bad balancing file (or an empty file) => same nb of points for each procs |
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451 | IF (ierr/=0 .OR. s/=Nbpoints) THEN |
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452 | DO i=0,mpi_size-1 |
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453 | Nbpoints_loc(i)=Nbpoints/mpi_size |
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454 | IF (MOD(Nbpoints,mpi_size) > i) Nbpoints_loc(i)=Nbpoints_loc(i)+1 |
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455 | ENDDO |
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456 | ENDIF |
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457 | |
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458 | END SUBROUTINE Read_Load_balance |
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459 | |
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460 | SUBROUTINE Write_Load_balance(times) |
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461 | IMPLICIT NONE |
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462 | REAL(r_std),INTENT(IN) :: times |
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463 | |
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464 | #ifdef CPP_PARA |
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465 | CHARACTER(len=255) :: filename='Load_balance_orchidee.dat' |
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466 | INTEGER :: unit_number=10 |
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467 | INTEGER :: i,ierr |
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468 | REAL :: All_Times(0:mpi_size-1) |
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469 | REAL :: average |
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470 | REAL :: efficiency |
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471 | INTEGER :: dp,S |
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472 | INTEGER :: New_nbpoints(0:mpi_size-1) |
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473 | #endif |
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474 | |
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475 | WRITE(numout,*) 'time',times |
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476 | #ifndef CPP_PARA |
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477 | RETURN |
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478 | #else |
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479 | |
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480 | CALL MPI_GATHER(times,1,MPI_REAL_ORCH,All_times,1,MPI_REAL_ORCH,root_prc,MPI_COMM_ORCH,ierr) |
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481 | IF (is_root_prc) WRITE(numout,*) 'ALL_times',All_times |
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482 | |
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483 | IF (is_root_prc) THEN |
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484 | |
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485 | OPEN(UNIT=unit_number,FILE=trim(filename),STATUS='replace',FORM='formatted',IOSTAT=ierr) |
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486 | |
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487 | average=sum(All_times(:))/mpi_size |
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488 | DO i=0,mpi_size-1 |
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489 | efficiency=All_times(i)/Nbp_para_nb(i) |
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490 | New_nbpoints(i)=Nbp_para_nb(i)-(All_times(i)-average)/efficiency |
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491 | ENDDO |
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492 | |
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493 | S=sum(new_nbpoints(:)) |
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494 | dp=nbp_glo-S |
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495 | |
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496 | IF ( dp > 0 ) THEN |
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497 | DO WHILE ( dp > 0 ) |
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498 | New_nbpoints(MOD(dp,mpi_size))=New_nbpoints(MOD(dp,mpi_size))+1 |
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499 | dp=dp-1 |
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500 | ENDDO |
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501 | ELSE |
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502 | dp=-dp |
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503 | DO WHILE ( dp > 0 ) |
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504 | New_nbpoints(MOD(dp,mpi_size))=New_nbpoints(MOD(dp,mpi_size))-1 |
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505 | dp=dp-1 |
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506 | ENDDO |
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507 | ENDIF |
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508 | |
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509 | ! If this algorithm diverge, we use previous repartition. |
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510 | IF ( ANY(New_nbpoints(:) .LE. 0) ) THEN |
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511 | New_nbpoints(:)=Nbp_para_nb(:) |
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512 | ENDIF |
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513 | |
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514 | DO i=0,mpi_size-1 |
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515 | WRITE(Unit_number,*) i,New_nbpoints(i) |
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516 | ENDDO |
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517 | CLOSE(Unit_number) |
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518 | ENDIF |
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519 | #endif |
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520 | |
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521 | END SUBROUTINE Write_Load_Balance |
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522 | |
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523 | |
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524 | |
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525 | END MODULE data_para |
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526 | |
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527 | #include "mpi_dummy.h" |
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