1 | #include "globalScopeData.hpp" |
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2 | #include "xios_spl.hpp" |
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3 | #include "cxios.hpp" |
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4 | #include "server.hpp" |
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5 | #include "client.hpp" |
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6 | #include "type.hpp" |
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7 | #include "context.hpp" |
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8 | #include "object_template.hpp" |
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9 | #include "oasis_cinterface.hpp" |
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10 | #include <boost/functional/hash.hpp> |
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11 | #include <boost/algorithm/string.hpp> |
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12 | #include "mpi.hpp" |
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13 | #include "tracer.hpp" |
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14 | #include "timer.hpp" |
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15 | #include "event_scheduler.hpp" |
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16 | #include "string_tools.hpp" |
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17 | #include "ressources_manager.hpp" |
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18 | #include "services_manager.hpp" |
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19 | #include "contexts_manager.hpp" |
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20 | #include "servers_ressource.hpp" |
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21 | #include "services.hpp" |
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22 | #include <cstdio> |
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23 | #include "workflow_graph.hpp" |
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24 | #include "release_static_allocation.hpp" |
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25 | #include <sys/stat.h> |
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26 | #include <unistd.h> |
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27 | |
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28 | |
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29 | |
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30 | namespace xios |
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31 | { |
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32 | MPI_Comm CServer::intraComm_ ; |
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33 | MPI_Comm CServer::serversComm_ ; |
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34 | std::list<MPI_Comm> CServer::interCommLeft ; |
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35 | std::list<MPI_Comm> CServer::interCommRight ; |
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36 | std::list<MPI_Comm> CServer::contextInterComms; |
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37 | std::list<MPI_Comm> CServer::contextIntraComms; |
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38 | int CServer::serverLevel = 0 ; |
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39 | int CServer::nbContexts = 0; |
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40 | bool CServer::isRoot = false ; |
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41 | int CServer::rank_ = INVALID_RANK; |
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42 | StdOFStream CServer::m_infoStream; |
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43 | StdOFStream CServer::m_errorStream; |
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44 | map<string,CContext*> CServer::contextList ; |
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45 | vector<int> CServer::sndServerGlobalRanks; |
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46 | bool CServer::finished=false ; |
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47 | bool CServer::is_MPI_Initialized ; |
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48 | CEventScheduler* CServer::eventScheduler = 0; |
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49 | CServersRessource* CServer::serversRessource_=nullptr ; |
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50 | CThirdPartyDriver* CServer::driver_ =nullptr ; |
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51 | |
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52 | |
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53 | void CServer::initialize(void) |
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54 | { |
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55 | |
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56 | MPI_Comm serverComm ; |
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57 | int initialized ; |
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58 | MPI_Initialized(&initialized) ; |
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59 | if (initialized) is_MPI_Initialized=true ; |
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60 | else is_MPI_Initialized=false ; |
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61 | MPI_Comm globalComm=CXios::getGlobalComm() ; |
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62 | |
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63 | ///////////////////////////////////////// |
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64 | ///////////// PART 1 //////////////////// |
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65 | ///////////////////////////////////////// |
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66 | // don't use OASIS |
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67 | if (!CXios::usingOasis) |
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68 | { |
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69 | if (!is_MPI_Initialized) MPI_Init(NULL, NULL); |
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70 | |
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71 | // split the global communicator |
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72 | // get hash from all model to attribute a unique color (int) and then split to get client communicator |
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73 | // every mpi process of globalComm (MPI_COMM_WORLD) must participate |
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74 | |
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75 | int commRank, commSize ; |
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76 | MPI_Comm_rank(globalComm,&commRank) ; |
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77 | MPI_Comm_size(globalComm,&commSize) ; |
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78 | |
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79 | std::hash<string> hashString ; |
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80 | size_t hashServer=hashString(CXios::xiosCodeId) ; |
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81 | |
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82 | size_t* hashAll = new size_t[commSize] ; |
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83 | MPI_Allgather(&hashServer,1,MPI_SIZE_T,hashAll,1,MPI_SIZE_T,globalComm) ; |
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84 | |
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85 | int color=0 ; |
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86 | map<size_t,int> listHash ; |
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87 | for(int i=0 ; i<=commSize ; i++) |
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88 | if (listHash.count(hashAll[i])==0) |
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89 | { |
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90 | listHash[hashAll[i]]=color ; |
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91 | color=color+1 ; |
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92 | } |
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93 | color=listHash[hashServer] ; |
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94 | delete[] hashAll ; |
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95 | |
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96 | MPI_Comm_split(globalComm, color, commRank, &serverComm) ; |
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97 | } |
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98 | else // using OASIS |
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99 | { |
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100 | if (!is_MPI_Initialized) driver_ = new CThirdPartyDriver(); |
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101 | |
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102 | driver_->getComponentCommunicator( serverComm ); |
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103 | } |
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104 | MPI_Comm_dup(serverComm, &intraComm_); |
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105 | |
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106 | CTimer::get("XIOS").resume() ; |
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107 | CTimer::get("XIOS initialize").resume() ; |
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108 | |
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109 | ///////////////////////////////////////// |
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110 | ///////////// PART 2 //////////////////// |
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111 | ///////////////////////////////////////// |
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112 | |
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113 | |
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114 | // Create the XIOS communicator for every process which is related |
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115 | // to XIOS, as well on client side as on server side |
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116 | MPI_Comm xiosGlobalComm ; |
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117 | string strIds=CXios::getin<string>("clients_code_id","") ; |
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118 | vector<string> clientsCodeId=splitRegex(strIds,"\\s*,\\s*") ; |
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119 | if (strIds.empty()) |
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120 | { |
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121 | // no code Ids given, suppose XIOS initialisation is global |
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122 | int commRank, commGlobalRank, serverLeader, clientLeader,serverRemoteLeader,clientRemoteLeader ; |
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123 | MPI_Comm splitComm,interComm ; |
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124 | MPI_Comm_rank(globalComm,&commGlobalRank) ; |
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125 | MPI_Comm_split(globalComm, 1, commGlobalRank, &splitComm) ; |
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126 | MPI_Comm_rank(splitComm,&commRank) ; |
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127 | if (commRank==0) serverLeader=commGlobalRank ; |
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128 | else serverLeader=0 ; |
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129 | clientLeader=0 ; |
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130 | MPI_Allreduce(&clientLeader,&clientRemoteLeader,1,MPI_INT,MPI_SUM,globalComm) ; |
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131 | MPI_Allreduce(&serverLeader,&serverRemoteLeader,1,MPI_INT,MPI_SUM,globalComm) ; |
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132 | MPI_Intercomm_create(splitComm, 0, globalComm, clientRemoteLeader,1341,&interComm) ; |
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133 | MPI_Intercomm_merge(interComm,false,&xiosGlobalComm) ; |
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134 | CXios::setXiosComm(xiosGlobalComm) ; |
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135 | } |
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136 | else |
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137 | { |
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138 | |
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139 | xiosGlobalCommByFileExchange(serverComm) ; |
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140 | |
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141 | } |
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142 | |
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143 | ///////////////////////////////////////// |
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144 | ///////////// PART 4 //////////////////// |
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145 | // create servers intra communicator // |
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146 | ///////////////////////////////////////// |
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147 | |
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148 | int commRank ; |
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149 | MPI_Comm_rank(CXios::getXiosComm(), &commRank) ; |
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150 | MPI_Comm_split(CXios::getXiosComm(),true,commRank,&serversComm_) ; |
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151 | |
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152 | CXios::setUsingServer() ; |
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153 | |
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154 | ///////////////////////////////////////// |
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155 | ///////////// PART 5 //////////////////// |
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156 | // redirect files output // |
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157 | ///////////////////////////////////////// |
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158 | |
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159 | CServer::openInfoStream(CXios::serverFile); |
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160 | CServer::openErrorStream(CXios::serverFile); |
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161 | |
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162 | ///////////////////////////////////////// |
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163 | ///////////// PART 4 //////////////////// |
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164 | ///////////////////////////////////////// |
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165 | |
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166 | CXios::launchDaemonsManager(true) ; |
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167 | |
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168 | ///////////////////////////////////////// |
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169 | ///////////// PART 5 //////////////////// |
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170 | ///////////////////////////////////////// |
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171 | |
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172 | // create the services |
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173 | |
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174 | auto ressourcesManager=CXios::getRessourcesManager() ; |
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175 | auto servicesManager=CXios::getServicesManager() ; |
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176 | auto contextsManager=CXios::getContextsManager() ; |
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177 | auto daemonsManager=CXios::getDaemonsManager() ; |
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178 | auto serversRessource=CServer::getServersRessource() ; |
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179 | |
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180 | int rank; |
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181 | MPI_Comm_rank(intraComm_, &rank) ; |
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182 | if (rank==0) isRoot=true; |
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183 | else isRoot=false; |
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184 | |
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185 | if (serversRessource->isServerLeader()) |
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186 | { |
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187 | int nbRessources = ressourcesManager->getRessourcesSize() ; |
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188 | if (!CXios::usingServer2) |
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189 | { |
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190 | ressourcesManager->createPool(CXios::defaultPoolId, nbRessources) ; |
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191 | servicesManager->createServices(CXios::defaultPoolId, CXios::defaultServerId, CServicesManager::IO_SERVER,nbRessources,1) ; |
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192 | } |
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193 | else |
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194 | { |
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195 | int nprocsServer = nbRessources*CXios::ratioServer2/100.; |
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196 | int nprocsGatherer = nbRessources - nprocsServer ; |
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197 | |
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198 | int nbPoolsServer2 = CXios::nbPoolsServer2 ; |
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199 | if (nbPoolsServer2 == 0) nbPoolsServer2 = nprocsServer; |
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200 | ressourcesManager->createPool(CXios::defaultPoolId, nbRessources) ; |
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201 | servicesManager->createServices(CXios::defaultPoolId, CXios::defaultGathererId, CServicesManager::GATHERER, nprocsGatherer, 1) ; |
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202 | servicesManager->createServices(CXios::defaultPoolId, CXios::defaultServerId, CServicesManager::OUT_SERVER, nprocsServer, nbPoolsServer2) ; |
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203 | |
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204 | |
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205 | } |
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206 | servicesManager->createServices(CXios::defaultPoolId, CXios::defaultServicesId, CServicesManager::ALL_SERVICES, nbRessources, 1) ; |
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207 | } |
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208 | CTimer::get("XIOS initialize").suspend() ; |
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209 | |
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210 | ///////////////////////////////////////// |
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211 | ///////////// PART 5 //////////////////// |
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212 | ///////////////////////////////////////// |
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213 | // loop on event loop |
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214 | |
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215 | bool finished=false ; |
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216 | CTimer::get("XIOS event loop").resume() ; |
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217 | |
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218 | while (!finished) |
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219 | { |
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220 | finished=daemonsManager->eventLoop() ; |
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221 | } |
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222 | CTimer::get("XIOS event loop").suspend() ; |
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223 | |
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224 | // Delete CContext |
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225 | //CObjectTemplate<CContext>::cleanStaticDataStructure(); |
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226 | } |
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227 | |
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228 | |
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229 | |
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230 | |
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231 | |
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232 | void CServer::xiosGlobalCommByFileExchange(MPI_Comm serverComm) |
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233 | { |
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234 | |
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235 | MPI_Comm globalComm=CXios::getGlobalComm() ; |
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236 | MPI_Comm xiosGlobalComm ; |
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237 | |
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238 | string strIds=CXios::getin<string>("clients_code_id","") ; |
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239 | vector<string> clientsCodeId=splitRegex(strIds,"\\s*,\\s*") ; |
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240 | |
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241 | int commRank, globalRank ; |
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242 | MPI_Comm_rank(serverComm, &commRank) ; |
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243 | MPI_Comm_rank(globalComm, &globalRank) ; |
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244 | string serverFileName("__xios_publisher::"+CXios::xiosCodeId+"__to_remove__") ; |
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245 | |
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246 | if (commRank==0) // if root process publish name |
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247 | { |
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248 | std::ofstream ofs (serverFileName, std::ofstream::out); |
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249 | ofs<<globalRank ; |
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250 | ofs.close(); |
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251 | } |
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252 | |
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253 | vector<int> clientsRank(clientsCodeId.size()) ; |
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254 | for(int i=0;i<clientsRank.size();i++) |
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255 | { |
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256 | std::ifstream ifs ; |
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257 | string fileName=("__xios_publisher::"+clientsCodeId[i]+"__to_remove__") ; |
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258 | struct stat buffer; |
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259 | do { |
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260 | } while( stat(fileName.c_str(), &buffer) != 0 ); |
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261 | sleep(1); |
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262 | ifs.open(fileName, ifstream::in) ; |
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263 | ifs>>clientsRank[i] ; |
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264 | //cout << "\t\t read: " << clientsRank[i] << " in " << fileName << endl; |
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265 | ifs.close() ; |
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266 | } |
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267 | |
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268 | MPI_Comm intraComm ; |
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269 | MPI_Comm_dup(serverComm,&intraComm) ; |
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270 | MPI_Comm interComm ; |
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271 | for(int i=0 ; i<clientsRank.size(); i++) |
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272 | { |
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273 | MPI_Intercomm_create(intraComm, 0, globalComm, clientsRank[i], 3141, &interComm); |
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274 | interCommLeft.push_back(interComm) ; |
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275 | MPI_Comm_free(&intraComm) ; |
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276 | MPI_Intercomm_merge(interComm,false, &intraComm ) ; |
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277 | } |
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278 | xiosGlobalComm=intraComm ; |
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279 | MPI_Barrier(xiosGlobalComm); |
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280 | if (commRank==0) std::remove(serverFileName.c_str()) ; |
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281 | MPI_Barrier(xiosGlobalComm); |
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282 | |
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283 | CXios::setXiosComm(xiosGlobalComm) ; |
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284 | |
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285 | } |
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286 | |
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287 | |
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288 | void CServer::xiosGlobalCommByPublishing(MPI_Comm serverComm) |
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289 | { |
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290 | // untested, need to be tested on a true MPI-2 compliant library |
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291 | |
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292 | // try to discover other client/server |
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293 | /* |
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294 | // publish server name |
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295 | char portName[MPI_MAX_PORT_NAME]; |
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296 | int ierr ; |
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297 | int commRank ; |
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298 | MPI_Comm_rank(serverComm, &commRank) ; |
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299 | |
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300 | if (commRank==0) // if root process publish name |
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301 | { |
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302 | MPI_Open_port(MPI_INFO_NULL, portName); |
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303 | MPI_Publish_name(CXios::xiosCodeId.c_str(), MPI_INFO_NULL, portName); |
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304 | } |
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305 | |
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306 | MPI_Comm intraComm=serverComm ; |
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307 | MPI_Comm interComm ; |
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308 | for(int i=0 ; i<clientsCodeId.size(); i++) |
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309 | { |
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310 | MPI_Comm_accept(portName, MPI_INFO_NULL, 0, intraComm, &interComm); |
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311 | MPI_Intercomm_merge(interComm,false, &intraComm ) ; |
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312 | } |
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313 | */ |
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314 | } |
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315 | |
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316 | /*! |
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317 | * Root process is listening for an order sent by client to call "oasis_enddef". |
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318 | * The root client of a compound send the order (tag 5). It is probed and received. |
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319 | * When the order has been received from each coumpound, the server root process ping the order to the root processes of the secondary levels of servers (if any). |
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320 | * After, it also inform (asynchronous call) other processes of the communicator that the oasis_enddef call must be done |
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321 | */ |
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322 | |
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323 | void CServer::listenOasisEnddef(void) |
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324 | { |
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325 | int flag ; |
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326 | MPI_Status status ; |
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327 | list<MPI_Comm>::iterator it; |
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328 | int msg ; |
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329 | static int nbCompound=0 ; |
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330 | int size ; |
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331 | static bool sent=false ; |
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332 | static MPI_Request* allRequests ; |
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333 | static MPI_Status* allStatus ; |
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334 | |
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335 | |
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336 | if (sent) |
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337 | { |
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338 | MPI_Comm_size(intraComm_,&size) ; |
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339 | MPI_Testall(size,allRequests, &flag, allStatus) ; |
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340 | if (flag==true) |
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341 | { |
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342 | delete [] allRequests ; |
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343 | delete [] allStatus ; |
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344 | sent=false ; |
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345 | } |
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346 | } |
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347 | |
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348 | |
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349 | for(it=interCommLeft.begin();it!=interCommLeft.end();it++) |
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350 | { |
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351 | MPI_Status status ; |
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352 | traceOff() ; |
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353 | MPI_Iprobe(0,5,*it,&flag,&status) ; // tags oasis_endded = 5 |
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354 | traceOn() ; |
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355 | if (flag==true) |
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356 | { |
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357 | MPI_Recv(&msg,1,MPI_INT,0,5,*it,&status) ; // tags oasis_endded = 5 |
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358 | nbCompound++ ; |
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359 | if (nbCompound==interCommLeft.size()) |
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360 | { |
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361 | MPI_Comm_size(intraComm_,&size) ; |
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362 | allRequests= new MPI_Request[size] ; |
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363 | allStatus= new MPI_Status[size] ; |
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364 | for(int i=0;i<size;i++) MPI_Isend(&msg,1,MPI_INT,i,5,intraComm_,&allRequests[i]) ; // tags oasis_endded = 5 |
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365 | sent=true ; |
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366 | } |
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367 | } |
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368 | } |
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369 | } |
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370 | |
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371 | /*! |
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372 | * Processes probes message from root process if oasis_enddef call must be done. |
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373 | * When the order is received it is scheduled to be treated in a synchronized way by all server processes of the communicator |
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374 | */ |
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375 | void CServer::listenRootOasisEnddef(void) |
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376 | { |
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377 | int flag ; |
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378 | MPI_Status status ; |
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379 | const int root=0 ; |
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380 | int msg ; |
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381 | static bool eventSent=false ; |
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382 | |
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383 | if (eventSent) |
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384 | { |
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385 | boost::hash<string> hashString; |
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386 | size_t hashId = hashString("oasis_enddef"); |
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387 | if (CXios::getPoolRessource()->getService(CXios::defaultServicesId,0)->getEventScheduler()->queryEvent(0,hashId)) |
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388 | { |
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389 | CXios::getPoolRessource()->getService(CXios::defaultServicesId,0)->getEventScheduler()->popEvent() ; |
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390 | driver_->endSynchronizedDefinition() ; |
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391 | eventSent=false ; |
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392 | } |
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393 | } |
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394 | |
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395 | traceOff() ; |
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396 | MPI_Iprobe(root,5,intraComm_, &flag, &status) ; |
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397 | traceOn() ; |
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398 | if (flag==true) |
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399 | { |
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400 | MPI_Recv(&msg,1,MPI_INT,root,5,intraComm_,&status) ; // tags oasis_endded = 5 |
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401 | boost::hash<string> hashString; |
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402 | size_t hashId = hashString("oasis_enddef"); |
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403 | CXios::getPoolRessource()->getService(CXios::defaultServicesId,0)->getEventScheduler()->registerEvent(0,hashId); |
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404 | eventSent=true ; |
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405 | } |
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406 | } |
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407 | |
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408 | void CServer::finalize(void) |
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409 | { |
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410 | CTimer::get("XIOS").suspend() ; |
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411 | |
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412 | delete eventScheduler ; |
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413 | |
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414 | for (std::list<MPI_Comm>::iterator it = contextInterComms.begin(); it != contextInterComms.end(); it++) |
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415 | MPI_Comm_free(&(*it)); |
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416 | |
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417 | for (std::list<MPI_Comm>::iterator it = contextIntraComms.begin(); it != contextIntraComms.end(); it++) |
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418 | MPI_Comm_free(&(*it)); |
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419 | |
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420 | for (std::list<MPI_Comm>::iterator it = interCommRight.begin(); it != interCommRight.end(); it++) |
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421 | MPI_Comm_free(&(*it)); |
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422 | |
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423 | // MPI_Comm_free(&intraComm); |
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424 | CXios::finalizeDaemonsManager(); |
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425 | finalizeServersRessource(); |
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426 | |
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427 | CContext::removeAllContexts() ; // free memory for related context |
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428 | |
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429 | CXios::getMpiGarbageCollector().release() ; // release unfree MPI ressources |
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430 | |
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431 | if (!is_MPI_Initialized) |
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432 | { |
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433 | if (CXios::usingOasis) delete driver_; |
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434 | else MPI_Finalize() ; |
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435 | } |
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436 | report(0)<<"Performance report : Time spent for XIOS : "<<CTimer::get("XIOS server").getCumulatedTime()<<endl ; |
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437 | report(0)<<"Performance report : Time spent in processing events : "<<CTimer::get("Process events").getCumulatedTime()<<endl ; |
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438 | report(0)<<"Performance report : Ratio : "<<CTimer::get("Process events").getCumulatedTime()/CTimer::get("XIOS server").getCumulatedTime()*100.<<"%"<<endl ; |
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439 | report(100)<<CTimer::getAllCumulatedTime()<<endl ; |
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440 | |
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441 | CWorkflowGraph::drawWorkFlowGraph_server(); |
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442 | xios::releaseStaticAllocation() ; // free memory from static allocation |
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443 | } |
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444 | |
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445 | /*! |
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446 | * Open a file specified by a suffix and an extension and use it for the given file buffer. |
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447 | * The file name will be suffix+rank+extension. |
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448 | * |
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449 | * \param fileName[in] protype file name |
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450 | * \param ext [in] extension of the file |
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451 | * \param fb [in/out] the file buffer |
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452 | */ |
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453 | void CServer::openStream(const StdString& fileName, const StdString& ext, std::filebuf* fb) |
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454 | { |
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455 | StdStringStream fileNameServer; |
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456 | int numDigit = 0; |
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457 | int commSize = 0; |
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458 | int commRank ; |
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459 | int id; |
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460 | |
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461 | MPI_Comm_size(CXios::getGlobalComm(), &commSize); |
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462 | MPI_Comm_rank(CXios::getGlobalComm(), &commRank); |
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463 | |
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464 | while (commSize) |
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465 | { |
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466 | commSize /= 10; |
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467 | ++numDigit; |
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468 | } |
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469 | id = commRank; |
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470 | |
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471 | fileNameServer << fileName << "_" << std::setfill('0') << std::setw(numDigit) << id << ext; |
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472 | fb->open(fileNameServer.str().c_str(), std::ios::out); |
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473 | if (!fb->is_open()) |
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474 | ERROR("void CServer::openStream(const StdString& fileName, const StdString& ext, std::filebuf* fb)", |
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475 | << std::endl << "Can not open <" << fileNameServer.str() << "> file to write the server log(s)."); |
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476 | } |
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477 | |
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478 | /*! |
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479 | * \brief Open a file stream to write the info logs |
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480 | * Open a file stream with a specific file name suffix+rank |
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481 | * to write the info logs. |
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482 | * \param fileName [in] protype file name |
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483 | */ |
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484 | void CServer::openInfoStream(const StdString& fileName) |
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485 | { |
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486 | std::filebuf* fb = m_infoStream.rdbuf(); |
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487 | openStream(fileName, ".out", fb); |
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488 | |
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489 | info.write2File(fb); |
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490 | report.write2File(fb); |
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491 | } |
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492 | |
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493 | //! Write the info logs to standard output |
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494 | void CServer::openInfoStream() |
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495 | { |
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496 | info.write2StdOut(); |
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497 | report.write2StdOut(); |
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498 | } |
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499 | |
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500 | //! Close the info logs file if it opens |
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501 | void CServer::closeInfoStream() |
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502 | { |
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503 | if (m_infoStream.is_open()) m_infoStream.close(); |
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504 | } |
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505 | |
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506 | /*! |
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507 | * \brief Open a file stream to write the error log |
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508 | * Open a file stream with a specific file name suffix+rank |
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509 | * to write the error log. |
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510 | * \param fileName [in] protype file name |
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511 | */ |
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512 | void CServer::openErrorStream(const StdString& fileName) |
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513 | { |
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514 | std::filebuf* fb = m_errorStream.rdbuf(); |
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515 | openStream(fileName, ".err", fb); |
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516 | |
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517 | error.write2File(fb); |
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518 | } |
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519 | |
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520 | //! Write the error log to standard error output |
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521 | void CServer::openErrorStream() |
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522 | { |
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523 | error.write2StdErr(); |
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524 | } |
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525 | |
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526 | //! Close the error log file if it opens |
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527 | void CServer::closeErrorStream() |
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528 | { |
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529 | if (m_errorStream.is_open()) m_errorStream.close(); |
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530 | } |
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531 | |
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532 | void CServer::launchServersRessource(MPI_Comm serverComm) |
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533 | { |
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534 | serversRessource_ = new CServersRessource(serverComm) ; |
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535 | } |
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536 | |
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537 | void CServer::finalizeServersRessource(void) |
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538 | { |
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539 | delete serversRessource_; serversRessource_=nullptr ; |
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540 | } |
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541 | } |
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