1 | Module class_DataDecomposition !============================================ |
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2 | use class_TensorProductGrid |
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3 | implicit none |
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4 | public :: NewDataDecomposition |
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5 | public :: DeleteDataDecomposition |
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6 | public :: DescribeDecomposition |
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7 | |
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8 | type DataDecomposition |
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9 | integer :: level !!multigrid level 0=fine grid |
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10 | integer :: nx !!global data size, dim 1 |
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11 | integer :: ny !!global data size, dim 2 |
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12 | integer :: nz !!global data size, dim 3 |
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13 | integer :: numprocs !!number of processors |
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14 | integer,pointer,dimension(:,:) :: SlabDims,ColDims !!size of local storage arrays |
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15 | integer,pointer,dimension(:,:) :: SlabVals,ColVals !!num of data vals held |
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16 | integer,pointer,dimension(:) :: my_global_kvals !!global indexing of local data |
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17 | integer,pointer,dimension(:) :: my_global_ivals !!global indexing of local data |
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18 | integer :: locnz |
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19 | integer :: locnx |
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20 | character (len=80 ) :: DerivTypes(6) |
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21 | character (len=80 ) :: label |
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22 | end type DataDecomposition |
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23 | |
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24 | interface assignment (=) |
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25 | module procedure EqualDataDecompositions |
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26 | end interface |
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27 | |
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28 | Contains |
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29 | |
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30 | subroutine DeleteDataDecomposition(DataMap) |
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31 | type( DataDecomposition ),intent(inout) :: DataMap |
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32 | deallocate( DataMap%SlabDims ) |
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33 | deallocate( DataMap%ColDims ) |
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34 | deallocate( DataMap%SlabVals ) |
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35 | deallocate( DataMap%ColVals ) |
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36 | deallocate( DataMap%my_global_kvals ) |
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37 | deallocate( DataMap%my_global_ivals ) |
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38 | end subroutine DeleteDataDecomposition |
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39 | |
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40 | |
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41 | subroutine EqualDataDecompositions(new,old) |
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42 | implicit none |
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43 | type( DataDecomposition ),intent(inout):: new |
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44 | type( DataDecomposition ),intent(in) :: old |
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45 | integer :: numprocs,rcode(6)=0 |
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46 | |
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47 | numprocs=old%numprocs |
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48 | |
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49 | if( associated(new%SlabDims) ) call DeleteDataDecomposition(new) |
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50 | |
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51 | new%level = old%level |
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52 | new%nx = old%nx |
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53 | new%ny = old%ny |
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54 | new%nz = old%nz |
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55 | new%numprocs = old%numprocs |
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56 | new%DerivTypes = old%DerivTypes |
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57 | new%label = old%label |
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58 | new%locnz = old%locnz |
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59 | new%locnx = old%locnx |
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60 | |
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61 | allocate( new%SlabDims(3,-1:numprocs-1), stat=rcode(1) ) |
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62 | allocate( new%SlabVals(3,-1:numprocs-1), stat=rcode(2) ) |
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63 | allocate( new%ColDims(3,-1:numprocs-1), stat=rcode(3) ) |
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64 | allocate( new%ColVals(3,-1:numprocs-1), stat=rcode(4) ) |
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65 | allocate( new%my_global_kvals(new%locnz), stat=rcode(5) ) |
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66 | allocate( new%my_global_ivals(new%locnx), stat=rcode(6) ) |
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67 | if( any( rcode /= 0 ) ) Stop 'Allocation failed: EqualDataDecompositions' |
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68 | |
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69 | new%SlabDims = old%SlabDims |
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70 | new%ColDims = old%ColDims |
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71 | new%SlabVals = old%SlabVals |
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72 | new%ColVals = old%ColVals |
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73 | new%my_global_kvals = old%my_global_kvals |
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74 | new%my_global_ivals = old%my_global_ivals |
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75 | end subroutine EqualDataDecompositions |
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76 | |
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77 | subroutine NewDataDecomposition(label,grid,level,DerivTypes,DataMap) |
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78 | use class_TensorProductGrid |
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79 | implicit none |
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80 | |
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81 | type( DataDecomposition ),intent(inout) :: DataMap |
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82 | type( TensorProductGrid ),intent(in) :: grid |
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83 | character (len=80 ) :: DerivTypes(6) |
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84 | character (len=80 ),intent(in) :: label |
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85 | integer :: level |
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86 | integer :: numnodes |
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87 | integer :: i,k0,rem |
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88 | integer :: myid,ierr,rcode(6)=0 |
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89 | include 'mpif.h' |
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90 | |
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91 | call mpi_comm_rank (MPI_COMM_WORLD,myid,ierr) |
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92 | call mpi_comm_size (MPI_COMM_WORLD,numnodes,ierr) |
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93 | |
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94 | rem = mod(DataMap%nx,numnodes) |
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95 | if( rem /= 0 .and. rem /= 1 ) then |
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96 | if(myid==0) & |
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97 | write(0,*) ' nx should be evenly divisible by np or have remainder 1' |
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98 | stop |
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99 | endif |
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100 | |
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101 | rem = mod(DataMap%nz,numnodes) |
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102 | if( rem /= 0 .and. rem /= 1 ) then |
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103 | if(myid==0) & |
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104 | write(0,*) ' nz should be evenly divisible by np or have remainder 1' |
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105 | stop |
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106 | endif |
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107 | |
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108 | DataMap%level=level |
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109 | DataMap%label=label |
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110 | DataMap%DerivTypes(1:3) = DerivTypes(1:3) |
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111 | DataMap%nx=grid%DataDims(1) |
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112 | DataMap%ny=grid%DataDims(2) |
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113 | DataMap%nz=grid%DataDims(3) |
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114 | DataMap%numprocs=numnodes |
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115 | |
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116 | do i=1,3 |
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117 | if( trim( DerivTypes(i) ) == 'cos' ) then |
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118 | DataMap%DerivTypes(i+3)='sin' |
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119 | elseif( trim( DerivTypes(i) ) == 'sin' ) then |
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120 | DataMap%DerivTypes(i+3)='cos' |
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121 | else |
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122 | DataMap%DerivTypes(i+3)=DerivTypes(i) |
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123 | endif |
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124 | enddo |
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125 | |
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126 | if( .not. associated(DataMap%SlabDims) ) then |
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127 | allocate( DataMap%SlabDims(3,-1:numnodes-1), stat=rcode(1) ) |
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128 | allocate( DataMap%SlabVals(3,-1:numnodes-1), stat=rcode(2) ) |
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129 | allocate( DataMap%ColDims(3,-1:numnodes-1), stat=rcode(3) ) |
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130 | allocate( DataMap%ColVals(3,-1:numnodes-1), stat=rcode(4) ) |
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131 | if( any( rcode /= 0 ) ) Stop 'Allocation failed: NewDataDecomposition A' |
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132 | endif |
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133 | |
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134 | i=1 |
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135 | if( DerivTypes(i) == 'fourier' ) then |
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136 | DataMap%SlabVals(i,:) = DataMap%nx |
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137 | DataMap%SlabDims(i,:) = DataMap%nx + 0 !! DON"T accomodate conjugate symmetry |
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138 | DataMap%ColDims(i,:) = (DataMap%nx)/numnodes !! size counted in real words, but the |
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139 | DataMap%ColVals(i,:) = (DataMap%nx)/numnodes !! storage is for local part of kx wavenumber space |
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140 | else |
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141 | select case ( mod(DataMap%nx,2) ) |
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142 | case(0) ! nx is even |
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143 | DataMap%SlabVals(i,:) = DataMap%nx |
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144 | DataMap%SlabDims(i,:) = DataMap%nx |
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145 | DataMap%ColDims(i,:) = DataMap%nx/numnodes |
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146 | DataMap%ColVals(i,:) = DataMap%nx/numnodes |
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147 | |
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148 | case(1) ! nx is odd |
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149 | DataMap%SlabVals(i,:) = DataMap%nx |
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150 | DataMap%SlabDims(i,:) = DataMap%nx |
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151 | DataMap%ColDims(i,:) = (DataMap%nx-1)/numnodes |
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152 | DataMap%ColVals(i,:) = (DataMap%nx-1)/numnodes |
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153 | DataMap%ColDims(i,numnodes-1) = (DataMap%nx-1)/numnodes + 1 |
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154 | DataMap%ColVals(i,numnodes-1) = (DataMap%nx-1)/numnodes + 1 |
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155 | end select |
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156 | endif |
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157 | |
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158 | i=2 |
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159 | DataMap%SlabVals(i,:) = DataMap%ny |
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160 | DataMap%SlabDims(i,:) = DataMap%ny |
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161 | DataMap%ColDims(i,:) = DataMap%ny |
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162 | DataMap%ColVals(i,:) = DataMap%ny |
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163 | |
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164 | i=3 |
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165 | select case ( mod(DataMap%nz,2) ) |
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166 | case(0) ! nz is even |
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167 | DataMap%SlabVals(i,:) = DataMap%nz/numnodes |
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168 | DataMap%SlabDims(i,:) = DataMap%nz/numnodes |
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169 | DataMap%ColDims(i,:) = DataMap%nz |
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170 | DataMap%ColVals(i,:) = DataMap%nz |
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171 | case(1) ! nz is odd |
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172 | DataMap%SlabVals(i,:) = (DataMap%nz-1)/numnodes |
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173 | DataMap%SlabDims(i,:) = (DataMap%nz-1)/numnodes |
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174 | DataMap%ColDims(i,:) = DataMap%nz |
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175 | DataMap%ColVals(i,:) = DataMap%nz |
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176 | DataMap%SlabDims(i,numnodes-1) = (DataMap%nz-1)/numnodes + 1 |
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177 | DataMap%SlabVals(i,numnodes-1) = (DataMap%nz-1)/numnodes + 1 |
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178 | end select |
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179 | |
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180 | !! determine the global k indices for processor myid |
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181 | !! first, I already know how many planes are allocated to myid |
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182 | DataMap%locnz = DataMap%SlabDims(3,myid) |
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183 | |
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184 | !! next, add up the k locations below myid |
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185 | k0=0 |
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186 | do i=0,myid-1 |
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187 | k0=k0+DataMap%SlabDims(3,i) !! num of k planes assigned to processor i |
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188 | enddo |
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189 | |
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190 | allocate(DataMap%my_global_kvals( DataMap%locnz ), stat=rcode(1) ) |
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191 | if( rcode(1) /= 0 ) Stop 'Allocation failed: NewDataDecomposition B' |
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192 | !!fill the array w/ the k values |
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193 | do i=1,DataMap%locnz |
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194 | DataMap%my_global_kvals(i) = k0+i |
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195 | enddo |
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196 | |
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197 | !! determine the global i indices for processor myid (Column orientation) |
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198 | !! first, I already know how many planes are allocated to myid |
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199 | DataMap%locnx = DataMap%ColDims(1,myid) |
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200 | |
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201 | !! next, add up the i locations left of myid |
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202 | k0=0 |
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203 | do i=0,myid-1 |
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204 | k0=k0+DataMap%ColDims(1,i) !! num of X planes assigned to processor i |
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205 | enddo |
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206 | |
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207 | allocate(DataMap%my_global_ivals( DataMap%locnx ), stat=rcode(1) ) |
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208 | if( rcode(1) /= 0 ) Stop 'Allocation failed: NewDataDecomposition C' |
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209 | !!fill the array w/ the i values |
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210 | do i=1,DataMap%locnx |
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211 | DataMap%my_global_ivals(i) = k0+i |
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212 | enddo |
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213 | |
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214 | if(myid==0) write(0,*) '......creating MPI derived data types' |
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215 | call create_MPI_data_types(DataMap) |
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216 | if(myid==0) write(0,*) '....... data types done' |
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217 | |
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218 | end subroutine NewDataDecomposition |
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219 | |
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220 | subroutine DescribeDecomposition(DataMap,docfile) |
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221 | implicit none |
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222 | |
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223 | type( DataDecomposition ) :: DataMap |
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224 | character(len=80) :: docfile |
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225 | integer :: myid |
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226 | integer :: numprocs |
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227 | integer :: ierr |
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228 | |
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229 | include 'mpif.h' |
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230 | |
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231 | call mpi_comm_rank(MPI_COMM_WORLD,myid,ierr) |
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232 | call mpi_comm_size(MPI_COMM_WORLD,numprocs,ierr) |
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233 | |
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234 | if(myid .ne. 0 ) return |
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235 | open(1,file=docfile,position='append') |
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236 | write(1,*) '============================================================' |
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237 | write(1,*) ' Data Decomposition ',trim(DataMap%label),' for : ',DataMap%numprocs,' processors' |
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238 | write(1,*) '============================================================' |
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239 | |
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240 | write(1,*) ' Grid Level: ',DataMap%level |
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241 | write(1,*) ' Global number of data points in the ' |
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242 | write(1,*) ' (x,y,z)<-->(1,2,3)<-->(i,j,k) directions:' |
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243 | write(1,*) ' nx = ',DataMap%nx |
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244 | write(1,*) ' ny = ',DataMap%ny |
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245 | write(1,*) ' nz = ',DataMap%nz |
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246 | write(1,*) ' Derivative types specified for each dimension: ' |
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247 | write(1,*) ' in x ', trim(DataMap%DerivTypes(1)) |
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248 | write(1,*) ' in y ', trim(DataMap%DerivTypes(2)) |
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249 | write(1,*) ' in z ', trim(DataMap%DerivTypes(3)) |
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250 | write(1,*) ' In {slab} format, each processor is allocated ' |
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251 | write(1,*) ' nx*ny*locnz data values per variable, where' |
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252 | write(1,*) ' nx = ',DataMap%SlabVals(1,0) |
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253 | write(1,*) ' ny = ',DataMap%SlabVals(2,0) |
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254 | write(1,*) ' locnz = ',DataMap%SlabVals(3,0) |
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255 | if(DataMap%SlabVals(3,0) .ne. DataMap%SlabVals(3,DataMap%numprocs-1)) then |
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256 | write(1,*) ' except for processor ',DataMap%numprocs-1 |
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257 | write(1,*) ' which is allocated 1 extra plane. ' |
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258 | write(1,*) ' locnz = ',DataMap%SlabVals(3,DataMap%numprocs-1) |
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259 | endif |
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260 | write(1,*) ' ' |
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261 | write(1,*) ' The local {slab} data arrays should be dimensioned ' |
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262 | write(1,*) ' nx = ',DataMap%SlabDims(1,0) |
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263 | write(1,*) ' ny = ',DataMap%SlabDims(2,0) |
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264 | write(1,*) ' locnz = ',DataMap%SlabDims(3,0) |
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265 | if(DataMap%SlabDims(3,0) .ne. DataMap%SlabDims(3,DataMap%numprocs-1)) then |
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266 | write(1,*) ' except for processor ',DataMap%numprocs-1 |
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267 | write(1,*) ' which is allocated 1 extra plane. ' |
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268 | write(1,*) ' locnz = ',DataMap%SlabVals(3,DataMap%numprocs-1) |
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269 | write(1,*) ' ' |
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270 | write(1,*) ' myid = ',myid |
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271 | write(1,*) ' DataMap%SlabDims(1,myid) = nx = ',DataMap%SlabDims(1,myid) |
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272 | write(1,*) ' DataMap%SlabDims(2,myid) = ny = ',DataMap%SlabDims(2,myid) |
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273 | write(1,*) ' DataMap%SlabDims(3,myid) = locnz = ',DataMap%SlabDims(3,myid) |
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274 | write(1,*) ' DataMap%locnz = locnz = ',DataMap%locnz |
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275 | write(1,*) ' DataMap%my_global_kvals = ',DataMap%my_global_kvals |
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276 | |
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277 | |
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278 | endif |
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279 | write(1,*) ' ' |
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280 | write(1,*) '=========== ' |
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281 | write(1,*) ' ' |
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282 | write(1,*) ' In {column} format, measured in REAL words,' |
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283 | write(1,*) ' (even though the col arrays are sometimes complex),' |
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284 | write(1,*) ' each processor is allocated locnx*ny*nz ' |
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285 | write(1,*) ' REAL data values per variable, where ' |
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286 | write(1,*) ' locnx = ',DataMap%ColVals(1,0) |
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287 | write(1,*) ' ny = ',DataMap%ColVals(2,0) |
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288 | write(1,*) ' nz = ',DataMap%ColVals(3,0) |
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289 | if(DataMap%ColVals(1,0) .ne. DataMap%ColVals(1,DataMap%numprocs-1)) then |
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290 | write(1,*) ' except for processor ',DataMap%numprocs-1 |
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291 | write(1,*) ' which is allocated 1 extra slot. ' |
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292 | write(1,*) ' locnx = ',DataMap%ColVals(1,DataMap%numprocs-1) |
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293 | endif |
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294 | write(1,*) ' ' |
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295 | write(1,*) ' The local {Col} data arrays should be dimensioned ' |
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296 | write(1,*) ' locnx = ',DataMap%ColVals(1,0) |
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297 | write(1,*) ' ny = ',DataMap%ColVals(2,0) |
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298 | write(1,*) ' nz = ',DataMap%ColVals(3,0) |
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299 | if(DataMap%ColVals(1,0) .ne. DataMap%ColVals(1,DataMap%numprocs-1)) then |
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300 | write(1,*) ' except for processor ',DataMap%numprocs-1 |
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301 | write(1,*) ' which is allocated 1 extra plane. ' |
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302 | write(1,*) ' locnx = ',DataMap%ColVals(1,DataMap%numprocs-1) |
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303 | write(1,*) ' ' |
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304 | write(1,*) ' myid = ',myid |
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305 | write(1,*) ' DataMap%ColDims(1,myid) = nx = ',DataMap%ColDims(1,myid) |
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306 | write(1,*) ' DataMap%ColDims(2,myid) = ny = ',DataMap%ColDims(2,myid) |
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307 | write(1,*) ' DataMap%ColDims(3,myid) = locnx = ',DataMap%ColDims(3,myid) |
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308 | endif |
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309 | write(1,*) '============================================================' |
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310 | write(1,*) ' ' |
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311 | close(1) |
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312 | end subroutine DescribeDecomposition |
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313 | |
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314 | |
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315 | end Module class_DataDecomposition |
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