1 | MODULE mod_mpi_buffer_client |
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2 | USE mod_mpi_buffer_parameters |
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3 | USE mpi, ONLY : status_size=>MPI_STATUS_SIZE |
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4 | |
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5 | INTEGER(KIND=8),POINTER :: MPI_Buffer(:) |
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6 | |
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7 | TYPE mpi_requests |
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8 | INTEGER :: request |
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9 | INTEGER :: status(status_size) |
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10 | INTEGER :: Pos |
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11 | END TYPE mpi_requests |
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12 | |
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13 | TYPE(mpi_requests),DIMENSION(max_request) :: pending_request |
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14 | |
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15 | INTEGER :: Buffer_pos |
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16 | INTEGER :: request_pos |
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17 | INTEGER :: buffer_begin |
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18 | INTEGER :: request_begin |
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19 | INTEGER :: nb_request_pending |
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20 | INTEGER,SAVE :: start_pos |
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21 | LOGICAL,SAVE :: ok_new_request |
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22 | |
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23 | CONTAINS |
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24 | |
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25 | SUBROUTINE Init_mpi_buffer |
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26 | USE mod_global_memory |
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27 | USE mod_pack |
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28 | IMPLICIT NONE |
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29 | |
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30 | CALL allocate_global_memory(mpi_buffer_size,MPI_Buffer) |
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31 | buffer_begin=1 |
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32 | request_begin=1 |
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33 | Buffer_pos=1 |
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34 | nb_request_pending=0 |
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35 | Request_pos=1 |
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36 | ok_new_request=.TRUE. |
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37 | CALL set_pack_buffer(MPI_Buffer,buffer_begin) |
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38 | |
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39 | END SUBROUTINE Init_mpi_buffer |
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40 | |
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41 | |
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42 | SUBROUTINE create_request(request_id) |
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43 | USE mod_pack |
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44 | USE mod_ioclient_para |
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45 | USE mpitrace |
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46 | IMPLICIT NONE |
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47 | INCLUDE 'mpif.h' |
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48 | INTEGER :: request_id |
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49 | |
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50 | CALL VTb(VTprocess_event) |
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51 | IF (ok_new_request) THEN |
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52 | Pending_request(Request_pos)%Pos = pack_pos |
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53 | ok_new_request=.FALSE. |
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54 | ENDIF |
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55 | start_pos=pack_pos |
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56 | pack_pos=pack_pos+1 |
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57 | ! PRINT *,"Pos in Buffer",Pending_request(Request_pos)%Pos,"pack_pos",pack_pos |
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58 | CALL pack(request_id) |
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59 | |
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60 | END SUBROUTINE create_request |
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61 | |
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62 | |
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63 | SUBROUTINE Finalize_request |
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64 | USE mod_pack |
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65 | USE mod_ioclient_para |
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66 | USE mpitrace |
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67 | use mod_wait |
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68 | IMPLICIT NONE |
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69 | INCLUDE 'mpif.h' |
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70 | INTEGER :: ierr |
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71 | INTEGER :: message_size |
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72 | INTEGER(KIND=8) :: request_size |
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73 | INTEGER :: buffer_free |
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74 | LOGICAL :: ok_out |
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75 | LOGICAL :: is_Buffer_full |
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76 | request_size=pack_pos-start_pos |
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77 | pack_buffer(start_pos)=request_size |
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78 | message_size=pack_pos-Pending_request(Request_pos)%Pos |
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79 | |
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80 | |
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81 | !! ICI verifier que le buffer ne se recouvre pas ainsi que les requetes |
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82 | |
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83 | ok_out=.FALSE. |
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84 | is_buffer_full=.FALSE. |
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85 | DO WHILE (.NOT. ok_out) |
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86 | CALL check_request |
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87 | |
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88 | IF ( buffer_begin <= pack_pos) THEN |
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89 | Buffer_free=mpi_buffer_size-pack_pos+1 |
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90 | ELSE |
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91 | Buffer_free=buffer_begin-pack_pos |
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92 | ENDIF |
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93 | |
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94 | ! Print *,"message_size",message_size,"buffer_free",buffer_free |
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95 | ! PRINT *,"Request_pos",request_pos |
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96 | ! PRINT *,"Pos in Buffer",Pending_request(Request_pos)%Pos,"pack_pos",pack_pos |
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97 | IF ( nb_request_pending==1 .AND. (buffer_free < MPI_buffer_size * 0.4) ) THEN |
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98 | ok_out=.FALSE. |
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99 | CALL Wait_us(10) |
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100 | IF (.NOT. is_buffer_full) THEN |
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101 | CALL VTb(VTbuffer_full) |
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102 | ENDIF |
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103 | is_Buffer_full=.TRUE. |
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104 | |
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105 | ELSE |
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106 | ok_out=.TRUE. |
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107 | IF (is_buffer_full) THEN |
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108 | CALL VTe(VTbuffer_full) |
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109 | ENDIF |
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110 | is_buffer_full=.FALSE. |
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111 | |
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112 | ENDIF |
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113 | |
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114 | ENDDO |
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115 | |
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116 | IF (nb_request_pending==0 .OR. (buffer_free < MPI_buffer_size* 0.4 )) THEN |
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117 | |
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118 | CALL MPI_ISSEND(MPI_Buffer(Pending_request(Request_pos)%Pos),message_size,MPI_INTEGER8, & |
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119 | server_rank,tag_iocomm,iocomm,Pending_request(Request_pos)%request,ierr ) |
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120 | |
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121 | ! PRINT *,"Requete envoyée !!!!" |
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122 | ! PRINT *,"Message : ",MPI_Buffer(Pending_request(Request_pos)%Pos:Pending_request(Request_pos)%Pos+message_size-1) |
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123 | IF ( Pack_Pos > MPI_buffer_size*0.6 ) THEN |
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124 | Pack_Pos=1 |
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125 | ENDIF |
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126 | |
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127 | IF (Request_Pos==max_request) THEN |
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128 | Request_Pos=1 |
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129 | ELSE |
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130 | Request_Pos=Request_Pos+1 |
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131 | ENDIF |
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132 | nb_request_pending=nb_request_pending+1 |
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133 | |
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134 | ok_new_request=.TRUE. |
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135 | |
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136 | ENDIF |
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137 | CALL VTe(VTprocess_event) |
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138 | END SUBROUTINE Finalize_request |
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139 | |
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140 | |
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141 | SUBROUTINE Check_request |
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142 | IMPLICIT NONE |
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143 | INCLUDE 'mpif.h' |
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144 | LOGICAL :: ok_out |
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145 | LOGICAL :: OK_complete |
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146 | INTEGER :: ierr |
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147 | |
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148 | ! PRINT *, 'on entre dans Check_request' |
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149 | ! PRINT *, 'nb_request_pending',nb_request_pending |
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150 | |
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151 | IF (nb_request_pending>0) THEN |
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152 | ok_out=.FALSE. |
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153 | ELSE |
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154 | ok_out=.TRUE. |
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155 | ENDIF |
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156 | |
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157 | DO WHILE (.NOT. ok_out) |
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158 | |
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159 | ! PRINT *,'Testing_request...' |
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160 | ! PRINT *,'request_begin',request_begin |
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161 | CALL MPI_TEST(Pending_request(request_begin)%request,ok_complete,Pending_request(request_begin)%status,ierr) |
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162 | ! PRINT *,'Request has been tested...' |
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163 | IF (ok_complete) THEN |
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164 | ! PRINT *,"Request_completed" |
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165 | IF (Request_begin==max_request) THEN |
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166 | Request_begin=1 |
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167 | ELSE |
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168 | request_begin=request_begin+1 |
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169 | ENDIF |
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170 | |
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171 | buffer_begin=Pending_request(request_begin)%Pos |
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172 | |
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173 | nb_request_pending=nb_request_pending-1 |
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174 | |
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175 | IF (nb_request_pending==0) THEN |
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176 | ok_out=.TRUE. |
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177 | ELSE |
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178 | ok_out=.FALSE. |
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179 | ENDIF |
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180 | ELSE |
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181 | ok_out=.TRUE. |
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182 | ENDIF |
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183 | |
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184 | ENDDO |
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185 | ! PRINT *, 'on sort de Check_request' |
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186 | END SUBROUTINE Check_Request |
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187 | |
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188 | END MODULE mod_mpi_buffer_client |
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