1 | #include "legacy_context_server.hpp" |
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2 | #include "buffer_in.hpp" |
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3 | #include "type.hpp" |
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4 | #include "context.hpp" |
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5 | #include "object_template.hpp" |
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6 | #include "group_template.hpp" |
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7 | #include "attribute_template.hpp" |
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8 | #include "domain.hpp" |
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9 | #include "field.hpp" |
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10 | #include "file.hpp" |
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11 | #include "grid.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 "cxios.hpp" |
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16 | #include "event_scheduler.hpp" |
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17 | #include "server.hpp" |
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18 | #include "servers_ressource.hpp" |
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19 | #include "pool_ressource.hpp" |
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20 | #include "services.hpp" |
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21 | #include "contexts_manager.hpp" |
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22 | #include "timeline_events.hpp" |
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23 | |
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24 | #include <boost/functional/hash.hpp> |
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25 | #include <random> |
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26 | #include <chrono> |
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27 | |
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28 | |
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29 | namespace xios |
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30 | { |
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31 | using namespace std ; |
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32 | |
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33 | CLegacyContextServer::CLegacyContextServer(CContext* parent,MPI_Comm intraComm_,MPI_Comm interComm_) |
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34 | : CContextServer(parent, intraComm_, interComm_), |
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35 | isProcessingEvent_(false) |
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36 | { |
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37 | |
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38 | MPI_Comm_dup(intraComm, &processEventBarrier_) ; |
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39 | |
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40 | |
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41 | currentTimeLine=1; |
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42 | scheduled=false; |
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43 | finished=false; |
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44 | |
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45 | if (!isAttachedModeEnabled()) MPI_Intercomm_merge(interComm_,true,&interCommMerged_) ; |
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46 | MPI_Comm_split(intraComm_, intraCommRank, intraCommRank, &commSelf_) ; // for windows |
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47 | |
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48 | itLastTimeLine=lastTimeLine.begin() ; |
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49 | |
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50 | pureOneSided=CXios::getin<bool>("pure_one_sided",false); // pure one sided communication (for test) |
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51 | if (isAttachedModeEnabled()) pureOneSided=false ; // no one sided in attach mode |
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52 | |
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53 | } |
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54 | |
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55 | void CLegacyContextServer::setPendingEvent(void) |
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56 | { |
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57 | pendingEvent=true; |
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58 | } |
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59 | |
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60 | bool CLegacyContextServer::hasPendingEvent(void) |
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61 | { |
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62 | return pendingEvent; |
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63 | } |
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64 | |
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65 | bool CLegacyContextServer::hasFinished(void) |
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66 | { |
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67 | return finished; |
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68 | } |
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69 | |
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70 | bool CLegacyContextServer::eventLoop(bool enableEventsProcessing /*= true*/) |
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71 | { |
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72 | CTimer::get("listen request").resume(); |
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73 | listen(); |
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74 | CTimer::get("listen request").suspend(); |
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75 | CTimer::get("check pending request").resume(); |
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76 | checkPendingRequest(); |
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77 | checkPendingProbe() ; |
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78 | CTimer::get("check pending request").suspend(); |
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79 | CTimer::get("check event process").resume(); |
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80 | processEvents(enableEventsProcessing); |
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81 | CTimer::get("check event process").suspend(); |
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82 | return finished; |
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83 | } |
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84 | |
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85 | void CLegacyContextServer::listen(void) |
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86 | { |
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87 | int rank; |
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88 | int flag; |
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89 | int count; |
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90 | char * addr; |
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91 | MPI_Status status; |
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92 | MPI_Message message ; |
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93 | map<int,CServerBuffer*>::iterator it; |
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94 | bool okLoop; |
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95 | |
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96 | traceOff(); |
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97 | MPI_Improbe(MPI_ANY_SOURCE, 20,interComm,&flag,&message, &status); |
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98 | traceOn(); |
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99 | if (flag==true) listenPendingRequest(message, status) ; |
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100 | } |
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101 | |
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102 | bool CLegacyContextServer::listenPendingRequest( MPI_Message &message, MPI_Status& status) |
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103 | { |
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104 | int count; |
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105 | char * addr; |
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106 | map<int,CServerBuffer*>::iterator it; |
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107 | int rank=status.MPI_SOURCE ; |
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108 | |
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109 | it=buffers.find(rank); |
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110 | if (it==buffers.end()) // Receive the buffer size and allocate the buffer |
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111 | { |
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112 | MPI_Aint recvBuff[4] ; |
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113 | MPI_Mrecv(recvBuff, 4, MPI_AINT, &message, &status); |
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114 | remoteHashId_ = recvBuff[0] ; |
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115 | StdSize buffSize = recvBuff[1]; |
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116 | vector<MPI_Aint> winAdress(2) ; |
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117 | winAdress[0]=recvBuff[2] ; winAdress[1]=recvBuff[3] ; |
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118 | mapBufferSize_.insert(std::make_pair(rank, buffSize)); |
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119 | |
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120 | // create windows dynamically for one-sided |
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121 | if (!isAttachedModeEnabled()) |
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122 | { |
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123 | CTimer::get("create Windows").resume() ; |
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124 | MPI_Comm interComm ; |
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125 | MPI_Intercomm_create(commSelf_, 0, interCommMerged_, rank, 0 , &interComm) ; |
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126 | MPI_Intercomm_merge(interComm, true, &winComm_[rank]) ; |
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127 | CXios::getMpiGarbageCollector().registerCommunicator(winComm_[rank]) ; |
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128 | MPI_Comm_free(&interComm) ; |
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129 | windows_[rank].resize(2) ; |
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130 | MPI_Win_create_dynamic(MPI_INFO_NULL, winComm_[rank], &windows_[rank][0]); |
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131 | CXios::getMpiGarbageCollector().registerWindow(windows_[rank][0]) ; |
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132 | MPI_Win_create_dynamic(MPI_INFO_NULL, winComm_[rank], &windows_[rank][1]); |
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133 | CXios::getMpiGarbageCollector().registerWindow(windows_[rank][1]) ; |
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134 | CTimer::get("create Windows").suspend() ; |
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135 | MPI_Barrier(winComm_[rank]) ; |
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136 | } |
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137 | else |
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138 | { |
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139 | winComm_[rank] = MPI_COMM_NULL ; |
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140 | windows_[rank].resize(2) ; |
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141 | windows_[rank][0] = MPI_WIN_NULL ; |
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142 | windows_[rank][1] = MPI_WIN_NULL ; |
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143 | } |
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144 | |
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145 | it=(buffers.insert(pair<int,CServerBuffer*>(rank,new CServerBuffer(windows_[rank], winAdress, 0, buffSize)))).first; |
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146 | lastTimeLine[rank]=0 ; |
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147 | itLastTimeLine=lastTimeLine.begin() ; |
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148 | |
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149 | return true; |
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150 | } |
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151 | else |
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152 | { |
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153 | std::pair<MPI_Message,MPI_Status> mypair(message,status) ; |
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154 | pendingProbe[rank].push_back(mypair) ; |
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155 | return false; |
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156 | } |
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157 | } |
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158 | |
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159 | void CLegacyContextServer::checkPendingProbe(void) |
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160 | { |
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161 | |
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162 | list<int> recvProbe ; |
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163 | list<int>::iterator itRecv ; |
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164 | map<int, list<std::pair<MPI_Message,MPI_Status> > >::iterator itProbe; |
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165 | |
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166 | for(itProbe=pendingProbe.begin();itProbe!=pendingProbe.end();itProbe++) |
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167 | { |
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168 | int rank=itProbe->first ; |
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169 | if (pendingRequest.count(rank)==0) |
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170 | { |
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171 | MPI_Message& message = itProbe->second.front().first ; |
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172 | MPI_Status& status = itProbe->second.front().second ; |
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173 | int count ; |
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174 | MPI_Get_count(&status,MPI_CHAR,&count); |
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175 | map<int,CServerBuffer*>::iterator it = buffers.find(rank); |
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176 | if ( (it->second->isBufferFree(count) && !it->second->isResizing()) // accept new request if buffer is free |
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177 | || (it->second->isResizing() && it->second->isBufferEmpty()) ) // or if resizing wait for buffer is empty |
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178 | { |
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179 | char * addr; |
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180 | addr=(char*)it->second->getBuffer(count); |
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181 | MPI_Imrecv(addr,count,MPI_CHAR, &message, &pendingRequest[rank]); |
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182 | bufferRequest[rank]=addr; |
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183 | recvProbe.push_back(rank) ; |
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184 | itProbe->second.pop_front() ; |
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185 | } |
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186 | } |
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187 | } |
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188 | |
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189 | for(itRecv=recvProbe.begin(); itRecv!=recvProbe.end(); itRecv++) if (pendingProbe[*itRecv].empty()) pendingProbe.erase(*itRecv) ; |
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190 | } |
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191 | |
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192 | |
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193 | void CLegacyContextServer::checkPendingRequest(void) |
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194 | { |
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195 | map<int,MPI_Request>::iterator it; |
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196 | list<int> recvRequest; |
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197 | list<int>::iterator itRecv; |
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198 | int rank; |
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199 | int flag; |
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200 | int count; |
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201 | MPI_Status status; |
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202 | |
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203 | if (!pendingRequest.empty()) CTimer::get("receiving requests").resume(); |
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204 | else CTimer::get("receiving requests").suspend(); |
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205 | |
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206 | for(it=pendingRequest.begin();it!=pendingRequest.end();it++) |
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207 | { |
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208 | rank=it->first; |
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209 | traceOff(); |
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210 | MPI_Test(& it->second, &flag, &status); |
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211 | traceOn(); |
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212 | if (flag==true) |
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213 | { |
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214 | buffers[rank]->updateCurrentWindows() ; |
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215 | recvRequest.push_back(rank); |
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216 | MPI_Get_count(&status,MPI_CHAR,&count); |
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217 | processRequest(rank,bufferRequest[rank],count); |
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218 | } |
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219 | } |
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220 | |
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221 | for(itRecv=recvRequest.begin();itRecv!=recvRequest.end();itRecv++) |
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222 | { |
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223 | pendingRequest.erase(*itRecv); |
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224 | bufferRequest.erase(*itRecv); |
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225 | } |
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226 | } |
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227 | |
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228 | void CLegacyContextServer::getBufferFromClient(size_t timeLine) |
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229 | { |
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230 | CTimer::get("CLegacyContextServer::getBufferFromClient").resume() ; |
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231 | if (!isAttachedModeEnabled()) // one sided desactivated in attached mode |
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232 | { |
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233 | int rank ; |
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234 | char *buffer ; |
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235 | size_t count ; |
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236 | |
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237 | if (itLastTimeLine==lastTimeLine.end()) itLastTimeLine=lastTimeLine.begin() ; |
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238 | for(;itLastTimeLine!=lastTimeLine.end();++itLastTimeLine) |
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239 | { |
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240 | rank=itLastTimeLine->first ; |
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241 | if (itLastTimeLine->second < timeLine && pendingRequest.count(rank)==0 && buffers[rank]->isBufferEmpty()) |
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242 | { |
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243 | if (buffers[rank]->getBufferFromClient(timeLine, buffer, count)) processRequest(rank, buffer, count); |
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244 | if (count >= 0) ++itLastTimeLine ; |
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245 | break ; |
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246 | } |
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247 | } |
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248 | } |
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249 | CTimer::get("CLegacyContextServer::getBufferFromClient").suspend() ; |
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250 | } |
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251 | |
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252 | |
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253 | void CLegacyContextServer::processRequest(int rank, char* buff,int count) |
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254 | { |
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255 | |
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256 | CBufferIn buffer(buff,count); |
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257 | char* startBuffer,endBuffer; |
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258 | int size, offset; |
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259 | size_t timeLine=0; |
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260 | map<size_t,CEventServer*>::iterator it; |
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261 | |
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262 | |
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263 | CTimer::get("Process request").resume(); |
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264 | while(count>0) |
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265 | { |
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266 | char* startBuffer=(char*)buffer.ptr(); |
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267 | CBufferIn newBuffer(startBuffer,buffer.remain()); |
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268 | newBuffer>>size>>timeLine; |
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269 | |
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270 | if (timeLine==timelineEventNotifyChangeBufferSize) |
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271 | { |
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272 | buffers[rank]->notifyBufferResizing() ; |
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273 | buffers[rank]->updateCurrentWindows() ; |
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274 | buffers[rank]->popBuffer(count) ; |
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275 | info(100)<<"Context id "<<context->getId()<<" : Receive NotifyChangeBufferSize from client rank "<<rank<<endl |
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276 | <<"isBufferEmpty ? "<<buffers[rank]->isBufferEmpty()<<" remaining count : "<<buffers[rank]->getUsed()<<endl; |
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277 | } |
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278 | else if (timeLine==timelineEventChangeBufferSize) |
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279 | { |
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280 | size_t newSize ; |
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281 | vector<MPI_Aint> winAdress(2) ; |
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282 | newBuffer>>newSize>>winAdress[0]>>winAdress[1] ; |
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283 | buffers[rank]->freeBuffer(count) ; |
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284 | delete buffers[rank] ; |
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285 | buffers[rank] = new CServerBuffer(windows_[rank], winAdress, 0, 2*newSize) ; |
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286 | info(100)<<"Context id "<<context->getId()<<" : Receive ChangeBufferSize from client rank "<<rank |
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287 | <<" newSize : "<<newSize<<" Address : "<<winAdress[0]<<" & "<<winAdress[1]<<endl ; |
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288 | } |
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289 | else |
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290 | { |
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291 | info(100)<<"Context id "<<context->getId()<<" : Receive standard event from client rank "<<rank<<" with timeLine : "<<timeLine<<endl ; |
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292 | it=events.find(timeLine); |
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293 | |
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294 | if (it==events.end()) it=events.insert(pair<int,CEventServer*>(timeLine,new CEventServer(this))).first; |
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295 | it->second->push(rank,buffers[rank],startBuffer,size); |
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296 | if (timeLine>0) lastTimeLine[rank]=timeLine ; |
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297 | } |
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298 | buffer.advance(size); |
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299 | count=buffer.remain(); |
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300 | } |
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301 | |
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302 | CTimer::get("Process request").suspend(); |
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303 | } |
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304 | |
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305 | void CLegacyContextServer::processEvents(bool enableEventsProcessing) |
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306 | { |
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307 | map<size_t,CEventServer*>::iterator it; |
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308 | CEventServer* event; |
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309 | |
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310 | // if (context->isProcessingEvent()) return ; |
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311 | if (isProcessingEvent_) return ; |
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312 | if (isAttachedModeEnabled()) |
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313 | if (!CXios::getDaemonsManager()->isScheduledContext(remoteHashId_)) return ; |
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314 | |
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315 | it=events.find(currentTimeLine); |
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316 | if (it!=events.end()) |
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317 | { |
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318 | event=it->second; |
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319 | |
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320 | if (event->isFull()) |
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321 | { |
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322 | if (!scheduled && !isAttachedModeEnabled()) // Skip event scheduling for attached mode and reception on client side |
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323 | { |
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324 | eventScheduler_->registerEvent(currentTimeLine,hashId); |
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325 | scheduled=true; |
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326 | } |
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327 | else if (isAttachedModeEnabled() || eventScheduler_->queryEvent(currentTimeLine,hashId) ) |
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328 | { |
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329 | if (!enableEventsProcessing && isCollectiveEvent(*event)) return ; |
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330 | |
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331 | if (!eventScheduled_) |
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332 | { |
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333 | MPI_Ibarrier(processEventBarrier_,&processEventRequest_) ; |
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334 | eventScheduled_=true ; |
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335 | return ; |
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336 | } |
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337 | else |
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338 | { |
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339 | MPI_Status status ; |
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340 | int flag ; |
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341 | MPI_Test(&processEventRequest_, &flag, &status) ; |
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342 | if (!flag) return ; |
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343 | eventScheduled_=false ; |
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344 | } |
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345 | |
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346 | if (!isAttachedModeEnabled()) eventScheduler_->popEvent() ; |
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347 | //MPI_Barrier(intraComm) ; |
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348 | // When using attached mode, synchronise the processes to avoid that differents event be scheduled by differents processes |
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349 | // The best way to properly solve this problem will be to use the event scheduler also in attached mode |
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350 | // for now just set up a MPI barrier |
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351 | //ym to be check later |
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352 | // if (!eventScheduler_ && CXios::isServer) MPI_Barrier(intraComm) ; |
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353 | |
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354 | // context->setProcessingEvent() ; |
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355 | isProcessingEvent_=true ; |
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356 | CTimer::get("Process events").resume(); |
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357 | info(100)<<"Context id "<<context->getId()<<" : Process Event "<<currentTimeLine<<" of class "<<event->classId<<" of type "<<event->type<<endl ; |
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358 | dispatchEvent(*event); |
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359 | CTimer::get("Process events").suspend(); |
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360 | isProcessingEvent_=false ; |
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361 | // context->unsetProcessingEvent() ; |
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362 | pendingEvent=false; |
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363 | delete event; |
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364 | events.erase(it); |
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365 | currentTimeLine++; |
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366 | scheduled = false; |
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367 | if (isAttachedModeEnabled()) CXios::getDaemonsManager()->unscheduleContext() ; |
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368 | } |
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369 | } |
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370 | else if (pendingRequest.empty()) getBufferFromClient(currentTimeLine) ; |
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371 | } |
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372 | else if (pendingRequest.empty()) getBufferFromClient(currentTimeLine) ; // if pure one sided check buffer even if no event recorded at current time line |
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373 | } |
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374 | |
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375 | CLegacyContextServer::~CLegacyContextServer() |
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376 | { |
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377 | map<int,CServerBuffer*>::iterator it; |
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378 | for(it=buffers.begin();it!=buffers.end();++it) delete it->second; |
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379 | buffers.clear() ; |
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380 | } |
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381 | |
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382 | void CLegacyContextServer::releaseBuffers() |
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383 | { |
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384 | //for(auto it=buffers.begin();it!=buffers.end();++it) delete it->second ; |
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385 | //buffers.clear() ; |
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386 | freeWindows() ; |
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387 | } |
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388 | |
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389 | void CLegacyContextServer::freeWindows() |
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390 | { |
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391 | //if (!isAttachedModeEnabled()) |
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392 | //{ |
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393 | // for(auto& it : winComm_) |
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394 | // { |
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395 | // int rank = it.first ; |
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396 | // MPI_Win_free(&windows_[rank][0]); |
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397 | // MPI_Win_free(&windows_[rank][1]); |
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398 | // MPI_Comm_free(&winComm_[rank]) ; |
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399 | // } |
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400 | //} |
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401 | } |
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402 | |
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403 | void CLegacyContextServer::notifyClientsFinalize(void) |
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404 | { |
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405 | for(auto it=buffers.begin();it!=buffers.end();++it) |
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406 | { |
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407 | it->second->notifyClientFinalize() ; |
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408 | } |
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409 | } |
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410 | |
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411 | void CLegacyContextServer::dispatchEvent(CEventServer& event) |
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412 | { |
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413 | string contextName; |
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414 | string buff; |
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415 | int MsgSize; |
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416 | int rank; |
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417 | list<CEventServer::SSubEvent>::iterator it; |
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418 | StdString ctxId = context->getId(); |
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419 | CContext::setCurrent(ctxId); |
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420 | StdSize totalBuf = 0; |
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421 | |
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422 | if (event.classId==CContext::GetType() && event.type==CContext::EVENT_ID_CONTEXT_FINALIZE) |
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423 | { |
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424 | finished=true; |
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425 | info(20)<<" CLegacyContextServer: Receive context <"<<context->getId()<<"> finalize."<<endl; |
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426 | notifyClientsFinalize() ; |
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427 | CTimer::get("receiving requests").suspend(); |
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428 | context->finalize(); |
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429 | |
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430 | std::map<int, StdSize>::const_iterator itbMap = mapBufferSize_.begin(), |
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431 | iteMap = mapBufferSize_.end(), itMap; |
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432 | for (itMap = itbMap; itMap != iteMap; ++itMap) |
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433 | { |
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434 | rank = itMap->first; |
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435 | report(10)<< " Memory report : Context <"<<ctxId<<"> : server side : memory used for buffer of each connection to client" << endl |
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436 | << " +) With client of rank " << rank << " : " << itMap->second << " bytes " << endl; |
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437 | totalBuf += itMap->second; |
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438 | } |
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439 | report(0)<< " Memory report : Context <"<<ctxId<<"> : server side : total memory used for buffer "<<totalBuf<<" bytes"<<endl; |
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440 | } |
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441 | else if (event.classId==CContext::GetType()) CContext::dispatchEvent(event); |
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442 | else if (event.classId==CContextGroup::GetType()) CContextGroup::dispatchEvent(event); |
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443 | else if (event.classId==CCalendarWrapper::GetType()) CCalendarWrapper::dispatchEvent(event); |
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444 | else if (event.classId==CDomain::GetType()) CDomain::dispatchEvent(event); |
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445 | else if (event.classId==CDomainGroup::GetType()) CDomainGroup::dispatchEvent(event); |
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446 | else if (event.classId==CAxis::GetType()) CAxis::dispatchEvent(event); |
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447 | else if (event.classId==CAxisGroup::GetType()) CAxisGroup::dispatchEvent(event); |
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448 | else if (event.classId==CScalar::GetType()) CScalar::dispatchEvent(event); |
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449 | else if (event.classId==CScalarGroup::GetType()) CScalarGroup::dispatchEvent(event); |
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450 | else if (event.classId==CGrid::GetType()) CGrid::dispatchEvent(event); |
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451 | else if (event.classId==CGridGroup::GetType()) CGridGroup::dispatchEvent(event); |
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452 | else if (event.classId==CField::GetType()) CField::dispatchEvent(event); |
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453 | else if (event.classId==CFieldGroup::GetType()) CFieldGroup::dispatchEvent(event); |
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454 | else if (event.classId==CFile::GetType()) CFile::dispatchEvent(event); |
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455 | else if (event.classId==CFileGroup::GetType()) CFileGroup::dispatchEvent(event); |
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456 | else if (event.classId==CVariable::GetType()) CVariable::dispatchEvent(event); |
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457 | else |
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458 | { |
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459 | ERROR("void CLegacyContextServer::dispatchEvent(CEventServer& event)",<<" Bad event class Id"<<endl); |
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460 | } |
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461 | } |
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462 | |
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463 | bool CLegacyContextServer::isCollectiveEvent(CEventServer& event) |
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464 | { |
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465 | if (event.type>1000) return false ; |
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466 | else return true ; |
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467 | } |
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468 | } |
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