1 | MODULE mod_mpi_buffer_client |
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2 | USE mod_mpi_buffer_parameters |
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3 | #if defined key_mpp_mpi |
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4 | USE mpi, ONLY : status_size=>MPI_STATUS_SIZE |
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5 | #else |
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6 | INTEGER, PARAMETER :: status_size = 1 |
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7 | #endif |
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8 | |
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9 | |
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10 | INTEGER(KIND=8),POINTER :: MPI_Buffer(:) |
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11 | |
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12 | TYPE mpi_requests |
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13 | INTEGER :: request |
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14 | INTEGER :: status(status_size) |
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15 | INTEGER :: Pos |
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16 | END TYPE mpi_requests |
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17 | |
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18 | TYPE(mpi_requests),DIMENSION(max_request) :: pending_request |
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19 | |
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20 | INTEGER :: Buffer_pos |
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21 | INTEGER :: request_pos |
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22 | INTEGER :: buffer_begin |
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23 | INTEGER :: request_begin |
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24 | INTEGER :: nb_request_pending |
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25 | INTEGER,SAVE :: start_pos |
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26 | LOGICAL,SAVE :: ok_new_request |
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27 | LOGICAL,SAVE :: is_last_request |
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28 | |
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29 | INTEGER,SAVE :: mpi_buffer_size |
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30 | INTEGER,SAVE :: aggregated_request |
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31 | |
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32 | CONTAINS |
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33 | |
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34 | SUBROUTINE Init_mpi_buffer |
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35 | USE mod_global_memory |
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36 | USE mod_pack |
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37 | USE mod_ioclient_para |
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38 | IMPLICIT NONE |
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39 | |
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40 | INTEGER :: nb_client |
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41 | |
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42 | nb_client=iosize-1 |
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43 | mpi_buffer_size=global_mpi_buffer_size/nb_client |
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44 | |
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45 | CALL allocate_global_memory(mpi_buffer_size,MPI_Buffer) |
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46 | buffer_begin=1 |
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47 | request_begin=1 |
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48 | Buffer_pos=1 |
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49 | nb_request_pending=0 |
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50 | Request_pos=1 |
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51 | ok_new_request=.TRUE. |
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52 | is_last_request=.FALSE. |
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53 | aggregated_request=0 |
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54 | |
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55 | CALL set_pack_buffer(MPI_Buffer,buffer_begin) |
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56 | |
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57 | END SUBROUTINE Init_mpi_buffer |
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58 | |
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59 | |
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60 | SUBROUTINE create_request(request_id) |
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61 | USE mod_pack |
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62 | USE mod_ioclient_para |
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63 | USE mpitrace |
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64 | USE mpi_mod |
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65 | IMPLICIT NONE |
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66 | INTEGER :: request_id |
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67 | |
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68 | CALL VTb(VTprocess_event) |
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69 | IF (ok_new_request) THEN |
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70 | Pending_request(Request_pos)%Pos = pack_pos |
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71 | ok_new_request=.FALSE. |
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72 | ENDIF |
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73 | start_pos=pack_pos |
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74 | pack_pos=pack_pos+1 |
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75 | ! PRINT *,"Pos in Buffer",Pending_request(Request_pos)%Pos,"pack_pos",pack_pos |
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76 | CALL pack(request_id) |
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77 | END SUBROUTINE create_request |
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78 | |
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79 | |
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80 | SUBROUTINE Finalize_request |
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81 | USE mod_pack |
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82 | USE mod_ioclient_para |
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83 | USE mpitrace |
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84 | use mod_wait |
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85 | USE mpi_mod |
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86 | IMPLICIT NONE |
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87 | INTEGER :: ierr |
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88 | INTEGER :: message_size |
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89 | INTEGER(KIND=8) :: request_size |
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90 | INTEGER :: buffer_free |
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91 | LOGICAL :: ok_out |
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92 | LOGICAL :: is_Buffer_full |
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93 | request_size=pack_pos-start_pos |
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94 | pack_buffer(start_pos)=request_size |
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95 | message_size=pack_pos-Pending_request(Request_pos)%Pos |
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96 | aggregated_request=aggregated_request+1 |
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97 | |
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98 | |
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99 | !! ICI verifier que le buffer ne se recouvre pas ainsi que les requetes |
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100 | |
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101 | ok_out=.FALSE. |
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102 | is_buffer_full=.FALSE. |
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103 | DO WHILE (.NOT. ok_out) |
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104 | CALL check_request |
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105 | |
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106 | IF ( buffer_begin <= pack_pos) THEN |
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107 | Buffer_free=mpi_buffer_size-pack_pos+1 |
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108 | ELSE |
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109 | Buffer_free=buffer_begin-pack_pos |
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110 | ENDIF |
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111 | |
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112 | ! Print *,"message_size",message_size,"buffer_free",buffer_free |
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113 | ! PRINT *,"Request_pos",request_pos |
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114 | ! PRINT *,"Pos in Buffer",Pending_request(Request_pos)%Pos,"pack_pos",pack_pos |
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115 | IF ( nb_request_pending==1 .AND. ( (buffer_free < MPI_buffer_size * 0.4) .OR. is_last_request .OR. & |
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116 | (aggregated_request>=max_request/2) )) THEN |
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117 | ok_out=.FALSE. |
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118 | CALL Wait_us(10) |
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119 | IF (.NOT. is_buffer_full) THEN |
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120 | CALL VTb(VTbuffer_full) |
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121 | ENDIF |
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122 | is_Buffer_full=.TRUE. |
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123 | |
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124 | ELSE |
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125 | ok_out=.TRUE. |
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126 | IF (is_buffer_full) THEN |
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127 | CALL VTe(VTbuffer_full) |
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128 | ENDIF |
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129 | is_buffer_full=.FALSE. |
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130 | |
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131 | ENDIF |
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132 | |
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133 | ENDDO |
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134 | |
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135 | IF (nb_request_pending==0 .OR. (buffer_free < MPI_buffer_size* 0.4 ) .OR. (aggregated_request> max_request/2) ) THEN |
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136 | |
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137 | CALL MPI_ISSEND(MPI_Buffer(Pending_request(Request_pos)%Pos),message_size,MPI_INTEGER8, & |
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138 | server_rank,tag_iocomm,iocomm,Pending_request(Request_pos)%request,ierr ) |
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139 | |
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140 | ! PRINT *,"Requete envoy�e !!!!" |
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141 | ! PRINT *,"Message : ",MPI_Buffer(Pending_request(Request_pos)%Pos:Pending_request(Request_pos)%Pos+message_size-1) |
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142 | IF ( Pack_Pos > MPI_buffer_size*0.6 ) THEN |
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143 | Pack_Pos=1 |
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144 | ENDIF |
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145 | |
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146 | IF (Request_Pos==max_request) THEN |
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147 | Request_Pos=1 |
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148 | ELSE |
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149 | Request_Pos=Request_Pos+1 |
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150 | ENDIF |
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151 | nb_request_pending=nb_request_pending+1 |
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152 | |
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153 | ok_new_request=.TRUE. |
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154 | aggregated_request=0 |
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155 | ENDIF |
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156 | CALL VTe(VTprocess_event) |
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157 | END SUBROUTINE Finalize_request |
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158 | |
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159 | |
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160 | SUBROUTINE Check_request |
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161 | USE mpi_mod |
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162 | IMPLICIT NONE |
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163 | LOGICAL :: ok_out |
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164 | LOGICAL :: OK_complete |
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165 | INTEGER :: ierr |
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166 | |
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167 | ! PRINT *, 'on entre dans Check_request' |
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168 | ! PRINT *, 'nb_request_pending',nb_request_pending |
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169 | |
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170 | IF (nb_request_pending>0) THEN |
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171 | ok_out=.FALSE. |
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172 | ELSE |
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173 | ok_out=.TRUE. |
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174 | ENDIF |
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175 | |
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176 | DO WHILE (.NOT. ok_out) |
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177 | |
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178 | ! PRINT *,'Testing_request...' |
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179 | ! PRINT *,'request_begin',request_begin |
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180 | CALL MPI_TEST(Pending_request(request_begin)%request,ok_complete,Pending_request(request_begin)%status,ierr) |
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181 | ! PRINT *,'Request has been tested...' |
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182 | IF (ok_complete) THEN |
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183 | ! PRINT *,"Request_completed" |
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184 | IF (Request_begin==max_request) THEN |
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185 | Request_begin=1 |
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186 | ELSE |
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187 | request_begin=request_begin+1 |
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188 | ENDIF |
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189 | |
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190 | buffer_begin=Pending_request(request_begin)%Pos |
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191 | |
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192 | nb_request_pending=nb_request_pending-1 |
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193 | |
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194 | IF (nb_request_pending==0) THEN |
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195 | ok_out=.TRUE. |
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196 | ELSE |
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197 | ok_out=.FALSE. |
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198 | ENDIF |
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199 | ELSE |
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200 | ok_out=.TRUE. |
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201 | ENDIF |
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202 | |
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203 | ENDDO |
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204 | ! PRINT *, 'on sort de Check_request' |
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205 | END SUBROUTINE Check_Request |
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206 | |
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207 | END MODULE mod_mpi_buffer_client |
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