1 | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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2 | ! NASA/GSFC, Data Assimilation Office, Code 910.3, GEOS/DAS ! |
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3 | !----------------------------------------------------------------------- |
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4 | ! CVS m_flow.F90,v 1.3 2004-04-21 22:54:47 jacob Exp |
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5 | ! CVS MCT_2_8_0 |
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6 | !----------------------------------------------------------------------- |
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7 | !BOP |
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8 | ! |
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9 | ! !MODULE: m_flow - tracing the program calling tree |
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10 | ! |
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11 | ! !DESCRIPTION: |
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12 | ! |
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13 | ! !INTERFACE: |
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14 | |
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15 | module m_flow |
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16 | implicit none |
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17 | private ! except |
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18 | |
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19 | public :: flow_ci |
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20 | public :: flow_co |
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21 | public :: flow_flush |
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22 | public :: flow_reset |
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23 | |
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24 | interface flow_ci; module procedure ci_; end interface |
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25 | interface flow_co; module procedure co_; end interface |
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26 | interface flow_flush; module procedure flush_; end interface |
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27 | interface flow_reset; module procedure reset_; end interface |
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28 | |
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29 | ! !REVISION HISTORY: |
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30 | ! 26Feb98 - Jing Guo <guo@thunder> - initial prototype/prolog/code |
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31 | !EOP |
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32 | !_______________________________________________________________________ |
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33 | character(len=*),parameter :: myname='MCT(MPEU)::m_flow' |
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34 | |
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35 | integer,parameter :: MX_TNAME= 64 |
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36 | integer,parameter :: LN_TNAME= 32 |
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37 | |
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38 | integer,save :: mxdep= 0 |
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39 | integer,save :: iname=-1 |
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40 | character(len=LN_TNAME),save,dimension(0:MX_TNAME-1) :: tname |
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41 | |
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42 | character(len=LN_TNAME),save :: ciname=' ' |
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43 | character(len=LN_TNAME),save :: coname=' ' |
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44 | logical,save :: balanced=.true. |
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45 | |
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46 | contains |
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47 | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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48 | ! NASA/GSFC, Data Assimilation Office, Code 910.3, GEOS/DAS ! |
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49 | !----------------------------------------------------------------------- |
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50 | !BOP |
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51 | ! |
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52 | ! !IROUTINE: ci_ - checking in a level |
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53 | ! |
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54 | ! !DESCRIPTION: |
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55 | ! |
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56 | ! !INTERFACE: |
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57 | |
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58 | subroutine ci_(name) |
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59 | implicit none |
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60 | character(len=*),intent(in) :: name |
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61 | |
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62 | ! !REVISION HISTORY: |
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63 | ! 26Feb98 - Jing Guo <guo@thunder> - initial prototype/prolog/code |
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64 | !EOP |
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65 | !_______________________________________________________________________ |
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66 | character(len=*),parameter :: myname_=myname//'::ci_' |
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67 | |
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68 | ! Push in an entry in to a circulated list storage to save |
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69 | ! only the last MX_TNAME entries. |
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70 | |
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71 | iname=iname+1 |
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72 | tname(modulo(iname,MX_TNAME)) = name |
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73 | |
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74 | if(mxdep < iname+1) mxdep=iname+1 |
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75 | end subroutine ci_ |
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76 | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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77 | ! NASA/GSFC, Data Assimilation Office, Code 910.3, GEOS/DAS ! |
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78 | !----------------------------------------------------------------------- |
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79 | !BOP |
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80 | ! |
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81 | ! !IROUTINE: co_ - checking out a level |
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82 | ! |
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83 | ! !DESCRIPTION: |
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84 | ! |
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85 | ! !INTERFACE: |
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86 | |
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87 | subroutine co_(name) |
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88 | use m_chars, only : uppercase |
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89 | implicit none |
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90 | character(len=*),intent(in) :: name |
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91 | |
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92 | ! !REVISION HISTORY: |
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93 | ! 26Feb98 - Jing Guo <guo@thunder> - initial prototype/prolog/code |
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94 | !EOP |
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95 | !_______________________________________________________________________ |
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96 | character(len=*),parameter :: myname_=myname//'::co_' |
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97 | character(len=LN_TNAME) :: uname |
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98 | |
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99 | if(balanced) then |
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100 | uname='?' |
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101 | balanced=iname >= 0 |
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102 | if(balanced) then |
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103 | uname=tname(modulo(iname,MX_TNAME)) |
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104 | balanced = uname == ' ' .or. uppercase(uname) == uppercase(name) |
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105 | endif |
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106 | if(.not.balanced) then |
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107 | ciname=uname |
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108 | coname= name |
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109 | endif |
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110 | endif |
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111 | |
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112 | ! Pop out an entry |
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113 | |
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114 | tname(modulo(iname,MX_TNAME))=' ' |
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115 | iname=iname-1 |
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116 | |
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117 | end subroutine co_ |
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118 | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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119 | ! NASA/GSFC, Data Assimilation Office, Code 910.3, GEOS/DAS ! |
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120 | !----------------------------------------------------------------------- |
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121 | !BOP |
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122 | ! |
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123 | ! !IROUTINE: flush_ - print all remaining entries in the list |
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124 | ! |
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125 | ! !DESCRIPTION: |
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126 | ! |
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127 | ! !INTERFACE: |
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128 | |
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129 | subroutine flush_(lu) |
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130 | implicit none |
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131 | integer,intent(in) :: lu |
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132 | |
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133 | ! !REVISION HISTORY: |
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134 | ! 26Feb98 - Jing Guo <guo@thunder> - initial prototype/prolog/code |
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135 | !EOP |
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136 | !_______________________________________________________________________ |
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137 | character(len=*),parameter :: myname_=myname//'::flush_' |
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138 | integer :: i |
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139 | |
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140 | ! Nothing to show |
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141 | |
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142 | if(mxdep == 0 .and. iname == -1) return |
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143 | |
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144 | WRITE(lu,'(2a,i4)',advance='no') myname,': depth =',mxdep |
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145 | |
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146 | if(.not.balanced .or. iname < -1) then |
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147 | |
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148 | WRITE(lu,'(4a)',advance='no') & |
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149 | ', ci/co unbalanced at ',trim(ciname),'/',trim(coname) |
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150 | |
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151 | write(lu,'(a,i4)') ', level =',iname+1 |
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152 | return |
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153 | |
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154 | endif |
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155 | |
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156 | if(iname >= 0) then |
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157 | write(lu,'(a)',advance='no') ', ' |
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158 | do i=0,iname-1 |
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159 | write(lu,'(2a)',advance='no') trim(tname(modulo(i,MX_TNAME))),'>' |
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160 | end do |
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161 | write(lu,'(a)',advance='no') trim(tname(modulo(iname,MX_TNAME))) |
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162 | endif |
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163 | write(lu,*) |
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164 | |
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165 | end subroutine flush_ |
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166 | !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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167 | ! NASA/GSFC, Data Assimilation Office, Code 910.3, GEOS/DAS ! |
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168 | !----------------------------------------------------------------------- |
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169 | !BOP |
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170 | ! |
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171 | ! !IROUTINE: reset_ - set the stack to empty |
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172 | ! |
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173 | ! !DESCRIPTION: |
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174 | ! |
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175 | ! !INTERFACE: |
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176 | |
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177 | subroutine reset_() |
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178 | implicit none |
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179 | |
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180 | ! !REVISION HISTORY: |
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181 | ! 26Feb98 - Jing Guo <guo@thunder> - initial prototype/prolog/code |
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182 | !EOP |
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183 | !_______________________________________________________________________ |
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184 | character(len=*),parameter :: myname_=myname//'::reset_' |
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185 | integer :: i |
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186 | |
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187 | mxdep=0 |
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188 | iname=-1 |
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189 | tname(0:MX_TNAME-1)=' ' |
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190 | |
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191 | ciname=' ' |
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192 | coname=' ' |
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193 | balanced=.true. |
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194 | |
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195 | end subroutine reset_ |
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196 | end module m_flow |
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