1 | module parallel |
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2 | |
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3 | integer, save :: mpi_size |
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4 | integer, save :: mpi_rank |
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5 | integer, save :: jj_begin |
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6 | integer, save :: jj_end |
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7 | integer, save :: jj_nb |
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8 | integer, save :: ij_begin |
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9 | integer, save :: ij_end |
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10 | logical, save :: pole_nord |
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11 | logical, save :: pole_sud |
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12 | |
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13 | integer, allocatable, save, dimension(:) :: jj_begin_para |
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14 | integer, allocatable, save, dimension(:) :: jj_end_para |
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15 | integer, allocatable, save, dimension(:) :: jj_nb_para |
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16 | |
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17 | contains |
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18 | |
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19 | subroutine init_parallel |
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20 | |
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21 | #ifdef CPP_PARALLEL |
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22 | |
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23 | USE vampir |
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24 | implicit none |
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25 | |
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26 | integer :: ierr |
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27 | integer :: i,j |
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28 | integer :: type_size |
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29 | integer, dimension(3) :: blocklen,type |
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30 | |
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31 | |
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32 | include 'mpif.h' |
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33 | #include "dimensions90.h" |
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34 | #include "paramet90.h" |
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35 | |
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36 | call MPI_INIT(ierr) |
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37 | call InitVampir |
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38 | call MPI_COMM_SIZE(MPI_COMM_WORLD,mpi_size,ierr) |
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39 | call MPI_COMM_RANK(MPI_COMM_WORLD,mpi_rank,ierr) |
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40 | |
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41 | |
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42 | allocate(jj_begin_para(0:mpi_size-1)) |
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43 | allocate(jj_end_para(0:mpi_size-1)) |
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44 | allocate(jj_nb_para(0:mpi_size-1)) |
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45 | |
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46 | do i=0,mpi_size-1 |
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47 | jj_nb_para(i)=(jjm+1)/mpi_size |
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48 | if ( i < MOD((jjm+1),mpi_size) ) jj_nb_para(i)=jj_nb_para(i)+1 |
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49 | |
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50 | if (jj_nb_para(i) <= 2 ) then |
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51 | |
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52 | print *,"Arret : le nombre de bande de lattitude par process est trop faible (<2)." |
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53 | print *," ---> diminuez le nombre de CPU ou augmentez la taille en lattitude" |
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54 | |
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55 | call MPI_ABORT(MPI_COMM_WORLD,-1, ierr) |
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56 | |
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57 | endif |
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58 | |
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59 | enddo |
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60 | |
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61 | ! jj_nb_para(0)=11 |
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62 | ! jj_nb_para(1)=25 |
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63 | ! jj_nb_para(2)=25 |
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64 | ! jj_nb_para(3)=12 |
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65 | |
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66 | j=1 |
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67 | |
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68 | do i=0,mpi_size-1 |
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69 | |
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70 | jj_begin_para(i)=j |
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71 | jj_end_para(i)=j+jj_Nb_para(i)-1 |
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72 | j=j+jj_Nb_para(i) |
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73 | |
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74 | enddo |
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75 | |
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76 | jj_begin = jj_begin_para(mpi_rank) |
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77 | jj_end = jj_end_para(mpi_rank) |
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78 | jj_nb = jj_nb_para(mpi_rank) |
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79 | |
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80 | ij_begin=(jj_begin-1)*iip1+1 |
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81 | ij_end=jj_end*iip1 |
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82 | |
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83 | if (mpi_rank.eq.0) then |
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84 | pole_nord=.TRUE. |
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85 | else |
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86 | pole_nord=.FALSE. |
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87 | endif |
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88 | |
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89 | if (mpi_rank.eq.mpi_size-1) then |
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90 | pole_sud=.TRUE. |
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91 | else |
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92 | pole_sud=.FALSE. |
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93 | endif |
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94 | |
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95 | print *,"jj_begin",jj_begin |
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96 | print *,"jj_end",jj_end |
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97 | print *,"ij_begin",ij_begin |
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98 | print *,"ij_end",ij_end |
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99 | |
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100 | #endif |
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101 | |
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102 | end subroutine init_parallel |
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103 | |
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104 | |
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105 | subroutine SetDistrib(jj_Nb_New) |
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106 | |
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107 | #ifdef CPP_PARALLEL |
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108 | |
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109 | implicit none |
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110 | |
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111 | #include "dimensions90.h" |
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112 | #include "paramet90.h" |
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113 | |
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114 | INTEGER,dimension(0:MPI_Size-1) :: jj_Nb_New |
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115 | INTEGER :: i |
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116 | |
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117 | jj_Nb_Para=jj_Nb_New |
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118 | |
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119 | jj_begin_para(0)=1 |
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120 | jj_end_para(0)=jj_Nb_Para(0) |
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121 | |
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122 | do i=1,mpi_size-1 |
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123 | |
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124 | jj_begin_para(i)=jj_end_para(i-1)+1 |
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125 | jj_end_para(i)=jj_begin_para(i)+jj_Nb_para(i)-1 |
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126 | |
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127 | enddo |
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128 | |
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129 | jj_begin = jj_begin_para(mpi_rank) |
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130 | jj_end = jj_end_para(mpi_rank) |
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131 | jj_nb = jj_nb_para(mpi_rank) |
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132 | |
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133 | ij_begin=(jj_begin-1)*iip1+1 |
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134 | ij_end=jj_end*iip1 |
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135 | |
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136 | #endif |
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137 | |
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138 | end subroutine SetDistrib |
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139 | |
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140 | subroutine Finalize_parallel |
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141 | |
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142 | #ifdef CPP_PARALLEL |
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143 | |
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144 | implicit none |
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145 | |
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146 | #include "dimensions90.h" |
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147 | #include "paramet90.h" |
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148 | integer :: ierr |
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149 | integer :: i |
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150 | include 'mpif.h' |
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151 | |
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152 | deallocate(jj_begin_para) |
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153 | deallocate(jj_end_para) |
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154 | deallocate(jj_nb_para) |
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155 | |
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156 | call MPI_FINALIZE(ierr) |
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157 | |
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158 | #endif |
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159 | |
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160 | end subroutine Finalize_parallel |
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161 | |
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162 | subroutine Pack_Data(Field,ij,ll,row,Buffer) |
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163 | implicit none |
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164 | |
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165 | #include "dimensions90.h" |
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166 | #include "paramet90.h" |
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167 | |
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168 | integer, intent(in) :: ij,ll,row |
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169 | real,dimension(ij,ll),intent(in) ::Field |
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170 | real,dimension(ll*iip1*row), intent(out) :: Buffer |
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171 | |
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172 | integer :: Pos |
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173 | integer :: i,l |
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174 | |
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175 | Pos=0 |
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176 | do l=1,ll |
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177 | do i=1,row*iip1 |
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178 | Pos=Pos+1 |
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179 | Buffer(Pos)=Field(i,l) |
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180 | enddo |
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181 | enddo |
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182 | |
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183 | end subroutine Pack_data |
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184 | |
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185 | subroutine Unpack_Data(Field,ij,ll,row,Buffer) |
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186 | implicit none |
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187 | |
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188 | #include "dimensions90.h" |
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189 | #include "paramet90.h" |
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190 | |
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191 | integer, intent(in) :: ij,ll,row |
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192 | real,dimension(ij,ll),intent(out) ::Field |
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193 | real,dimension(ll*iip1*row), intent(in) :: Buffer |
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194 | |
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195 | integer :: Pos |
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196 | integer :: i,l |
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197 | |
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198 | Pos=0 |
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199 | |
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200 | do l=1,ll |
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201 | do i=1,row*iip1 |
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202 | Pos=Pos+1 |
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203 | Field(i,l)=Buffer(Pos) |
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204 | enddo |
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205 | enddo |
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206 | |
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207 | end subroutine UnPack_data |
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208 | |
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209 | subroutine exchange_hallo(Field,ij,ll,up,down) |
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210 | |
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211 | #ifdef CPP_PARALLEL |
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212 | |
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213 | USE Vampir |
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214 | implicit none |
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215 | #include "dimensions90.h" |
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216 | #include "paramet90.h" |
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217 | include 'mpif.h' |
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218 | |
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219 | INTEGER :: ij,ll |
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220 | REAL, dimension(ij,ll) :: Field |
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221 | INTEGER :: up,down |
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222 | |
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223 | INTEGER :: ierr |
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224 | LOGICAL :: SendUp,SendDown |
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225 | LOGICAL :: RecvUp,RecvDown |
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226 | INTEGER, DIMENSION(4) :: Request |
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227 | INTEGER, DIMENSION(MPI_STATUS_SIZE,4) :: Status |
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228 | INTEGER :: NbRequest |
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229 | REAL, dimension(:),allocatable :: Buffer_Send_up,Buffer_Send_down |
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230 | REAL, dimension(:),allocatable :: Buffer_Recv_up,Buffer_Recv_down |
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231 | INTEGER :: Buffer_size |
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232 | |
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233 | call MPI_Barrier(MPI_COMM_WORLD,ierr) |
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234 | call VTb(VThallo) |
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235 | |
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236 | SendUp=.TRUE. |
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237 | SendDown=.TRUE. |
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238 | RecvUp=.TRUE. |
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239 | RecvDown=.TRUE. |
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240 | |
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241 | IF (pole_nord) THEN |
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242 | SendUp=.FALSE. |
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243 | RecvUp=.FALSE. |
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244 | ENDIF |
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245 | |
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246 | IF (pole_sud) THEN |
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247 | SendDown=.FALSE. |
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248 | RecvDown=.FALSE. |
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249 | ENDIF |
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250 | |
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251 | if (up.eq.0) then |
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252 | SendDown=.FALSE. |
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253 | RecvUp=.FALSE. |
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254 | endif |
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255 | |
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256 | if (down.eq.0) then |
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257 | SendUp=.FALSE. |
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258 | RecvDown=.FALSE. |
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259 | endif |
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260 | |
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261 | NbRequest=0 |
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262 | |
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263 | IF (SendUp) THEN |
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264 | NbRequest=NbRequest+1 |
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265 | buffer_size=down*iip1*ll |
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266 | allocate(Buffer_Send_up(Buffer_size)) |
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267 | call PACK_Data(Field(ij_begin,1),ij,ll,down,Buffer_Send_up) |
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268 | call MPI_ISSEND(Buffer_send_up,Buffer_Size,MPI_REAL8,MPI_Rank-1,1, & |
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269 | MPI_COMM_WORLD,Request(NbRequest),ierr) |
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270 | ENDIF |
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271 | |
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272 | IF (SendDown) THEN |
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273 | NbRequest=NbRequest+1 |
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274 | |
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275 | buffer_size=up*iip1*ll |
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276 | allocate(Buffer_Send_down(Buffer_size)) |
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277 | call PACK_Data(Field(ij_end+1-up*iip1,1),ij,ll,up,Buffer_send_down) |
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278 | |
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279 | call MPI_ISSEND(Buffer_send_down,Buffer_Size,MPI_REAL8,MPI_Rank+1,1, & |
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280 | MPI_COMM_WORLD,Request(NbRequest),ierr) |
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281 | ENDIF |
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282 | |
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283 | |
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284 | IF (RecvUp) THEN |
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285 | NbRequest=NbRequest+1 |
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286 | buffer_size=up*iip1*ll |
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287 | allocate(Buffer_recv_up(Buffer_size)) |
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288 | |
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289 | call MPI_IRECV(Buffer_recv_up,Buffer_size,MPI_REAL8,MPI_Rank-1,1, & |
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290 | MPI_COMM_WORLD,Request(NbRequest),ierr) |
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291 | |
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292 | |
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293 | ENDIF |
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294 | |
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295 | IF (RecvDown) THEN |
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296 | NbRequest=NbRequest+1 |
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297 | buffer_size=down*iip1*ll |
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298 | allocate(Buffer_recv_down(Buffer_size)) |
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299 | |
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300 | call MPI_IRECV(Buffer_recv_down,Buffer_size,MPI_REAL8,MPI_Rank+1,1, & |
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301 | MPI_COMM_WORLD,Request(NbRequest),ierr) |
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302 | |
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303 | |
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304 | ENDIF |
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305 | |
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306 | if (NbRequest > 0) call MPI_WAITALL(NbRequest,Request,Status,ierr) |
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307 | IF (RecvUp) call Unpack_Data(Field(ij_begin-up*iip1,1),ij,ll,up,Buffer_Recv_up) |
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308 | IF (RecvDown) call Unpack_Data(Field(ij_end+1,1),ij,ll,down,Buffer_Recv_down) |
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309 | |
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310 | call VTe(VThallo) |
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311 | call MPI_Barrier(MPI_COMM_WORLD,ierr) |
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312 | RETURN |
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313 | |
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314 | #endif |
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315 | |
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316 | end subroutine exchange_Hallo |
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317 | |
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318 | |
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319 | subroutine Gather_Field(Field,ij,ll,rank) |
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320 | |
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321 | |
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322 | |
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323 | implicit none |
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324 | #include "dimensions90.h" |
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325 | #include "paramet90.h" |
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326 | |
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327 | #ifdef CPP_PARALLEL |
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328 | include 'mpif.h' |
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329 | #endif |
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330 | |
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331 | INTEGER :: ij,ll,rank |
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332 | REAL, dimension(ij,ll) :: Field |
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333 | #ifdef CPP_PARALLEL |
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334 | REAL, dimension(:),allocatable :: Buffer_send |
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335 | REAL, dimension(:),allocatable :: Buffer_Recv |
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336 | INTEGER, dimension(0:MPI_Size-1) :: Recv_count, displ |
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337 | INTEGER :: ierr |
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338 | INTEGER ::i |
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339 | |
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340 | if (ij==ip1jmp1) then |
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341 | allocate(Buffer_send(iip1*ll*(jj_end-jj_begin+1))) |
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342 | call Pack_Data(Field(ij_begin,1),ij,ll,jj_end-jj_begin+1,Buffer_send) |
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343 | else if (ij==ip1jm) then |
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344 | allocate(Buffer_send(iip1*ll*(min(jj_end,jjm)-jj_begin+1))) |
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345 | call Pack_Data(Field(ij_begin,1),ij,ll,min(jj_end,jjm)-jj_begin+1,Buffer_send) |
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346 | else |
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347 | print *,ij |
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348 | stop 'erreur dans Gather_Field' |
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349 | endif |
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350 | |
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351 | if (MPI_Rank==rank) then |
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352 | allocate(Buffer_Recv(ij*ll)) |
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353 | do i=0,MPI_Size-1 |
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354 | |
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355 | if (ij==ip1jmp1) then |
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356 | Recv_count(i)=(jj_end_para(i)-jj_begin_para(i)+1)*ll*iip1 |
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357 | else if (ij==ip1jm) then |
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358 | Recv_count(i)=(min(jj_end_para(i),jjm)-jj_begin_para(i)+1)*ll*iip1 |
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359 | else |
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360 | stop 'erreur dans Gather_Field' |
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361 | endif |
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362 | |
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363 | if (i==0) then |
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364 | displ(i)=0 |
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365 | else |
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366 | displ(i)=displ(i-1)+Recv_count(i-1) |
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367 | endif |
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368 | |
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369 | enddo |
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370 | |
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371 | endif |
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372 | |
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373 | call MPI_GATHERV(Buffer_send,(min(ij_end,ij)-ij_begin+1)*ll,MPI_REAL8, & |
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374 | Buffer_Recv,Recv_count,displ,MPI_REAL8,rank,MPI_COMM_WORLD,ierr) |
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375 | |
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376 | if (MPI_Rank==rank) then |
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377 | |
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378 | if (ij==ip1jmp1) then |
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379 | do i=0,MPI_Size-1 |
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380 | call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, & |
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381 | jj_end_para(i)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1)) |
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382 | enddo |
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383 | else if (ij==ip1jm) then |
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384 | do i=0,MPI_Size-1 |
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385 | call Unpack_Data(Field((jj_begin_para(i)-1)*iip1+1,1),ij,ll, & |
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386 | min(jj_end_para(i),jjm)-jj_begin_para(i)+1,Buffer_Recv(displ(i)+1)) |
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387 | enddo |
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388 | endif |
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389 | |
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390 | endif |
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391 | |
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392 | #endif |
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393 | |
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394 | end subroutine Gather_Field |
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395 | |
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396 | subroutine AllGather_Field(Field,ij,ll) |
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397 | |
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398 | #ifdef CPP_PARALLEL |
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399 | |
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400 | implicit none |
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401 | #include "dimensions90.h" |
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402 | #include "paramet90.h" |
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403 | include 'mpif.h' |
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404 | |
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405 | INTEGER :: ij,ll |
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406 | REAL, dimension(ij,ll) :: Field |
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407 | INTEGER :: ierr |
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408 | |
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409 | call Gather_Field(Field,ij,ll,0) |
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410 | call MPI_BCAST(Field,ij*ll,MPI_REAL8,0,MPI_COMM_WORLD) |
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411 | |
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412 | #endif |
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413 | |
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414 | end subroutine AllGather_Field |
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415 | |
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416 | subroutine Broadcast_Field(Field,ij,ll,rank) |
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417 | |
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418 | #ifdef CPP_PARALLEL |
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419 | |
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420 | implicit none |
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421 | #include "dimensions90.h" |
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422 | #include "paramet90.h" |
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423 | include 'mpif.h' |
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424 | |
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425 | INTEGER :: ij,ll |
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426 | REAL, dimension(ij,ll) :: Field |
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427 | INTEGER :: rank |
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428 | INTEGER :: ierr |
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429 | |
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430 | call MPI_BCAST(Field,ij*ll,MPI_REAL8,rank,MPI_COMM_WORLD) |
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431 | |
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432 | #endif |
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433 | |
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434 | end subroutine Broadcast_Field |
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435 | |
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436 | |
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437 | /* |
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438 | Subroutine verif_hallo(Field,ij,ll,up,down) |
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439 | |
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440 | #ifdef CPP_PARALLEL |
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441 | |
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442 | implicit none |
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443 | #include "dimensions90.h" |
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444 | #include "paramet90.h" |
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445 | include 'mpif.h' |
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446 | |
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447 | INTEGER :: ij,ll |
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448 | REAL, dimension(ij,ll) :: Field |
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449 | INTEGER :: up,down |
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450 | |
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451 | REAL,dimension(ij,ll): NewField |
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452 | |
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453 | NewField=0 |
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454 | |
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455 | ijb=ij_begin |
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456 | ije=ij_end |
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457 | if (pole_nord) |
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458 | NewField(ij_be |
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459 | |
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460 | #endif |
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461 | |
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462 | */ |
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463 | end module parallel |
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