1 | ! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt |
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2 | ! SPDX-License-Identifier: GPL-3.0-or-later |
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3 | |
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4 | subroutine readpartpositions |
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5 | |
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6 | !***************************************************************************** |
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7 | ! * |
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8 | ! This routine opens the particle dump file and reads all the particle * |
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9 | ! positions from a previous run to initialize the current run. * |
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10 | ! * |
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11 | ! * |
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12 | ! Author: A. Stohl * |
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13 | ! * |
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14 | ! 24 March 2000 * |
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15 | ! * |
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16 | ! CHANGES * |
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17 | ! 12/2014 eso: MPI version * |
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18 | ! Root process reads positions and distributes the data * |
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19 | ! :TODO: The above.. * |
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20 | !***************************************************************************** |
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21 | ! * |
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22 | ! Variables: * |
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23 | ! * |
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24 | !***************************************************************************** |
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25 | |
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26 | use par_mod |
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27 | use com_mod |
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28 | use random_mod, only: ran1 |
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29 | use mpi_mod !, only: mp_seed |
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30 | |
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31 | implicit none |
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32 | |
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33 | integer :: ibdatein,ibtimein,nspecin,itimein,numpointin,i,j,ix,ip |
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34 | integer :: id1,id2,it1,it2 |
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35 | integer :: addone,numparticlecount_all,numpart_all,lbnd,ubnd |
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36 | real :: xlonin,ylatin,topo,hmixi,pvi,qvi,rhoi,tri,tti |
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37 | character :: specin*7 |
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38 | real(kind=dp) :: julin,julpartin,juldate |
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39 | |
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40 | integer :: idummy = -8 |
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41 | |
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42 | ! These variables are allocated at the root process for all particles in file. |
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43 | real,dimension(maxpart) :: xtra1_all,ytra1_all,ztra1_all |
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44 | real,dimension(maxpart,maxspec) :: xmass1_all |
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45 | integer,dimension(maxpart) :: npoint_all,itramem_all |
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46 | |
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47 | ! Different seed for each process |
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48 | idummy=idummy+mp_seed |
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49 | |
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50 | numparticlecount=0 |
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51 | numparticlecount_all=0 |
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52 | numpart_all=0 |
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53 | |
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54 | ! Open header file of dumped particle data |
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55 | ! Each MPI process sequentially access file (just in case) |
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56 | !********************************************************* |
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57 | |
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58 | do ip=0, mp_partgroup_np-1 |
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59 | call mpif_mpi_barrier |
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60 | open(unitpartin,file=path(2)(1:length(2))//'header', & |
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61 | form='unformatted',err=998) |
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62 | |
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63 | read(unitpartin) ibdatein,ibtimein |
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64 | read(unitpartin) |
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65 | read(unitpartin) |
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66 | |
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67 | read(unitpartin) |
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68 | read(unitpartin) |
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69 | read(unitpartin) nspecin |
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70 | nspecin=nspecin/3 |
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71 | if ((ldirect.eq.1).and.(nspec.ne.nspecin)) goto 997 |
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72 | |
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73 | do i=1,nspecin |
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74 | read(unitpartin) |
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75 | read(unitpartin) |
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76 | read(unitpartin) j,specin |
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77 | if ((ldirect.eq.1).and.(species(i)(1:7).ne.specin)) goto 996 |
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78 | end do |
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79 | |
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80 | read(unitpartin) numpointin |
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81 | if (numpointin.ne.numpoint) then ! goto 995 |
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82 | |
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83 | ! eso 2016: moved this warning here to avoid out-of-block goto |
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84 | !995 write(*,*) ' #### FLEXPART MODEL WARNING IN READPARTPOSITIONS#### ' |
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85 | write(*,*) ' #### FLEXPART MODEL WARNING IN READPARTPOSITIONS#### ' |
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86 | write(*,*) ' #### NUMBER OF RELEASE LOCATIONS DOES NOT #### ' |
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87 | write(*,*) ' #### AGREE WITH CURRENT SETTINGS! #### ' |
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88 | ! stop |
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89 | goto 999 |
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90 | end if |
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91 | |
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92 | 999 continue |
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93 | do i=1,numpointin |
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94 | read(unitpartin) |
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95 | read(unitpartin) |
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96 | read(unitpartin) |
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97 | read(unitpartin) |
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98 | do j=1,nspec |
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99 | read(unitpartin) |
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100 | read(unitpartin) |
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101 | read(unitpartin) |
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102 | end do |
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103 | end do |
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104 | read(unitpartin) |
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105 | read(unitpartin) |
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106 | |
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107 | do ix=0,numxgrid-1 |
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108 | read(unitpartin) |
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109 | end do |
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110 | close(unitpartin) |
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111 | |
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112 | |
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113 | ! Open data file of dumped particle data |
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114 | ! All processes read the whole file |
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115 | !*************************************** |
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116 | |
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117 | open(unitpartin,file=path(2)(1:length(2))//'partposit_end', & |
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118 | form='unformatted',err=998) |
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119 | |
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120 | 100 read(unitpartin,end=99) itimein |
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121 | i=0 |
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122 | 200 i=i+1 |
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123 | read(unitpartin) npoint_all(i),xlonin,ylatin,ztra1_all(i),itramem_all(i), & |
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124 | topo,pvi,qvi,rhoi,hmixi,tri,tti,(xmass1_all(i,j),j=1,nspec) |
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125 | |
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126 | if (xlonin.eq.-9999.9) goto 100 |
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127 | xtra1_all(i)=(xlonin-xlon0)/dx |
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128 | ytra1_all(i)=(ylatin-ylat0)/dy |
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129 | numparticlecount_all=max(numparticlecount_all,npoint(i)) |
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130 | goto 200 |
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131 | |
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132 | 99 numpart_all=i-1 |
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133 | |
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134 | close(unitpartin) |
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135 | |
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136 | end do |
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137 | |
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138 | |
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139 | ! Distribute particles among processes |
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140 | !************************************** |
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141 | lbnd=1 |
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142 | ubnd=0 |
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143 | |
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144 | do ip=0, mp_partgroup_np-1 |
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145 | |
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146 | ! Extra particle distributed in case remainder in the division |
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147 | if (ip.lt.mod(numpart_all,mp_partgroup_np)) then |
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148 | addone=1 |
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149 | else |
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150 | addone=0 |
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151 | end if |
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152 | |
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153 | if (ip==0) then |
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154 | ubnd=ubnd + numpart_all/mp_partgroup_np + addone |
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155 | else |
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156 | ubnd=lbnd + numpart_all/mp_partgroup_np + addone - 1 |
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157 | end if |
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158 | |
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159 | if (ip==mp_pid) then |
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160 | |
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161 | numparticlecount=numparticlecount_all/mp_partgroup_np+addone |
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162 | numpart=numpart_all/mp_partgroup_np+addone |
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163 | |
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164 | xtra1(1:numpart) = xtra1_all(lbnd:ubnd) |
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165 | ytra1(1:numpart) = ytra1_all(lbnd:ubnd) |
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166 | ztra1(1:numpart) = ztra1_all(lbnd:ubnd) |
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167 | xmass1(1:numpart,:) = xmass1_all(lbnd:ubnd,:) |
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168 | npoint(1:numpart) = npoint_all(lbnd:ubnd) |
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169 | itramem(1:numpart) = itramem_all(lbnd:ubnd) |
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170 | |
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171 | end if |
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172 | |
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173 | lbnd=ubnd+1 |
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174 | |
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175 | end do |
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176 | |
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177 | julin=juldate(ibdatein,ibtimein)+real(itimein,kind=dp)/86400._dp |
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178 | if (abs(julin-bdate).gt.1.e-5) goto 994 |
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179 | do i=1,numpart |
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180 | julpartin=juldate(ibdatein,ibtimein)+ & |
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181 | real(itramem(i),kind=dp)/86400._dp |
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182 | nclass(i)=min(int(ran1(idummy)*real(nclassunc))+1, & |
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183 | nclassunc) |
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184 | idt(i)=mintime |
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185 | itra1(i)=0 |
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186 | itramem(i)=nint((julpartin-bdate)*86400.) |
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187 | itrasplit(i)=ldirect*itsplit |
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188 | end do |
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189 | |
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190 | return |
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191 | |
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192 | |
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193 | 994 write(*,*) ' #### FLEXPART MODEL ERROR IN READPARTPOSITIONS#### ' |
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194 | write(*,*) ' #### ENDING TIME OF PREVIOUS MODEL RUN DOES #### ' |
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195 | write(*,*) ' #### NOT AGREE WITH STARTING TIME OF THIS RUN.#### ' |
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196 | call caldate(julin,id1,it1) |
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197 | call caldate(bdate,id2,it2) |
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198 | write(*,*) 'julin: ',julin,id1,it1 |
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199 | write(*,*) 'bdate: ',bdate,id2,it2 |
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200 | stop |
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201 | |
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202 | 996 write(*,*) ' #### FLEXPART MODEL ERROR IN READPARTPOSITIONS#### ' |
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203 | write(*,*) ' #### SPECIES NAMES TO BE READ IN DO NOT #### ' |
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204 | write(*,*) ' #### AGREE WITH CURRENT SETTINGS! #### ' |
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205 | stop |
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206 | |
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207 | 997 write(*,*) ' #### FLEXPART MODEL ERROR IN READPARTPOSITIONS#### ' |
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208 | write(*,*) ' #### THE NUMBER OF SPECIES TO BE READ IN DOES #### ' |
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209 | write(*,*) ' #### NOT AGREE WITH CURRENT SETTINGS! #### ' |
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210 | stop |
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211 | |
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212 | 998 write(*,*) ' #### FLEXPART MODEL ERROR! THE FILE #### ' |
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213 | write(*,*) ' #### '//path(2)(1:length(2))//'grid'//' #### ' |
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214 | write(*,*) ' #### CANNOT BE OPENED. IF A FILE WITH THIS #### ' |
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215 | write(*,*) ' #### NAME ALREADY EXISTS, DELETE IT AND START #### ' |
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216 | write(*,*) ' #### THE PROGRAM AGAIN. #### ' |
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217 | stop |
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218 | |
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219 | end subroutine readpartpositions |
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