1 | #include "services.hpp" |
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2 | #include "services_manager.hpp" |
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3 | #include "mpi.hpp" |
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4 | #include "cxios.hpp" |
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5 | #include "server_context.hpp" |
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6 | #include "event_scheduler.hpp" |
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7 | #include "thread_manager.hpp" |
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8 | #include "timer.hpp" |
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9 | |
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10 | namespace xios |
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11 | { |
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12 | CService::CService(MPI_Comm serviceComm, shared_ptr<CEventScheduler> eventScheduler, const std::string& poolId, const std::string& serviceId, const int& partitionId, |
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13 | int type, int nbPartitions) |
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14 | : finalizeSignal_(false), eventScheduler_(nullptr), poolId_(poolId), serviceId_(serviceId), |
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15 | partitionId_(partitionId), type_(type), nbPartitions_(nbPartitions), hasNotification_(false) |
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16 | |
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17 | |
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18 | { |
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19 | info(40)<<"CService::CService : new service created ; serviceId : "<<serviceId<<endl ; |
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20 | |
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21 | int localRank, globalRank, commSize ; |
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22 | |
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23 | MPI_Comm_dup(serviceComm, &serviceComm_) ; |
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24 | CXios::getMpiGarbageCollector().registerCommunicator(serviceComm_) ; |
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25 | MPI_Comm globalComm_=CXios::getXiosComm() ; |
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26 | |
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27 | MPI_Comm_rank(globalComm_,&globalRank) ; |
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28 | MPI_Comm_rank(serviceComm_,&localRank) ; |
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29 | |
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30 | winNotify_ = new CWindowManager(serviceComm_, maxBufferSize_,"CService::winNotify_") ; |
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31 | winNotify_->updateToExclusiveWindow(localRank, this, &CService::createContextDumpOut) ; |
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32 | MPI_Barrier(serviceComm_) ; |
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33 | if (localRank==localLeader_) |
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34 | { |
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35 | globalLeader_=globalRank ; |
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36 | MPI_Comm_rank(serviceComm_,&commSize) ; |
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37 | CXios::getServicesManager()->registerService(poolId, serviceId, partitionId, type, commSize, nbPartitions, globalLeader_) ; |
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38 | } |
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39 | if (eventScheduler) eventScheduler_ = eventScheduler ; |
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40 | else eventScheduler_ = make_shared<CEventScheduler>(serviceComm_) ; |
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41 | |
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42 | ostringstream oss; |
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43 | oss<<partitionId; |
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44 | name_= poolId+"__"+serviceId+"_"+oss.str(); |
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45 | |
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46 | if (CThreadManager::isUsingThreads()) CThreadManager::spawnThread(&CService::threadEventLoop, this) ; |
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47 | } |
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48 | |
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49 | CService::~CService() |
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50 | { |
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51 | delete winNotify_ ; |
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52 | for(auto& it : contexts_) delete it.second ; |
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53 | } |
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54 | |
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55 | |
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56 | void CService::createContext( const std::string& poolId, const std::string& serviceId, const int& partitionId, const std::string& contextId) |
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57 | { |
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58 | int commSize ; |
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59 | MPI_Comm_size(serviceComm_, &commSize) ; |
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60 | info(40)<<"CService::createContext : notify CreateContext to all services members ; serviceId : "<<serviceId<<" ; contextId : "<<contextId<<endl ; |
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61 | |
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62 | for(int rank=0; rank<commSize; rank++) |
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63 | { |
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64 | notifyOutType_=NOTIFY_CREATE_CONTEXT ; |
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65 | notifyOutCreateContext_ = make_tuple(poolId, serviceId, partitionId, contextId) ; |
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66 | sendNotification(rank) ; |
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67 | } |
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68 | info(40)<<"CService::createContext : notify CreateContext to all services members : DONE "<<endl ; |
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69 | } |
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70 | /* |
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71 | void CService::createContext(const std::string& contextId) |
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72 | { |
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73 | contexts_[contextId] = new CServerContext(this, serviceComm_, poolId_, serviceId_, partitionId_, contextId) ; |
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74 | } |
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75 | */ |
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76 | void CService::createContextNotify(int rank, const std::string& poolId, const std::string& serviceId, const int& partitionId, const std::string& contextId) |
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77 | { |
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78 | winNotify_->lockWindowExclusive(rank) ; |
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79 | winNotify_->updateFromLockedWindow(rank, this, &CService::createContextDumpIn) ; |
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80 | notifications_.push_back(std::make_tuple(poolId, serviceId, partitionId, contextId)) ; |
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81 | winNotify_->updateToLockedWindow(rank, this, &CService::createContextDumpOut) ; |
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82 | winNotify_->unlockWindowExclusive(rank) ; |
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83 | } |
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84 | |
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85 | |
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86 | void CService::createContextDumpOut(CBufferOut& buffer) |
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87 | { |
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88 | buffer.realloc(maxBufferSize_) ; |
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89 | |
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90 | buffer << (int) (notifications_.size()); |
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91 | |
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92 | for(auto it=notifications_.begin();it!=notifications_.end(); ++it) |
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93 | buffer << std::get<0>(*it) << std::get<1>(*it) << std::get<2>(*it) << std::get<3>(*it) ; |
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94 | } |
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95 | |
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96 | |
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97 | void CService::createContextDumpIn(CBufferIn& buffer) |
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98 | { |
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99 | std::string poolId ; |
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100 | std::string serviceId ; |
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101 | int partitionId ; |
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102 | std::string contextId ; |
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103 | |
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104 | notifications_.clear() ; |
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105 | int nbNotifications ; |
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106 | buffer>>nbNotifications ; |
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107 | for(int i=0;i<nbNotifications;i++) |
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108 | { |
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109 | buffer>>poolId>>serviceId>>partitionId>>contextId ; |
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110 | notifications_.push_back(std::make_tuple(poolId, serviceId, partitionId, contextId)) ; |
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111 | } |
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112 | } |
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113 | |
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114 | bool CService::eventLoop(bool serviceOnly) |
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115 | { |
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116 | //checkCreateContextNotification() ; |
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117 | CTimer::get("CService::eventLoop").resume(); |
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118 | int flag ; |
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119 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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120 | |
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121 | // double time=MPI_Wtime() ; |
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122 | // if (time-lastEventLoop_ > eventLoopLatency_) |
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123 | // { |
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124 | checkNotifications() ; |
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125 | // lastEventLoop_=time ; |
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126 | // } |
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127 | |
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128 | |
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129 | eventScheduler_->checkEvent() ; |
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130 | |
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131 | for(auto it=contexts_.begin();it!=contexts_.end();++it) |
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132 | { |
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133 | if (it->second->eventLoop(serviceOnly)) |
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134 | { |
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135 | delete it->second ; |
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136 | contexts_.erase(it) ; |
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137 | // destroy server_context -> to do later |
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138 | break ; |
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139 | } ; |
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140 | } |
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141 | |
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142 | CTimer::get("CService::eventLoop").suspend(); |
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143 | if (contexts_.empty() && finalizeSignal_) return true ; |
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144 | else return false ; |
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145 | } |
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146 | |
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147 | void CService::threadEventLoop(void) |
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148 | { |
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149 | info(100)<<"Launch Thread for CService::threadEventLoop, service id = "<<name_<<endl ; |
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150 | CThreadManager::threadInitialize() ; |
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151 | |
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152 | do |
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153 | { |
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154 | CTimer::get("CService::eventLoop").resume(); |
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155 | int flag ; |
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156 | MPI_Iprobe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &flag, MPI_STATUS_IGNORE); |
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157 | |
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158 | // double time=MPI_Wtime() ; |
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159 | // if (time-lastEventLoop_ > eventLoopLatency_) |
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160 | // { |
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161 | checkNotifications() ; |
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162 | // lastEventLoop_=time ; |
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163 | // } |
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164 | |
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165 | |
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166 | eventScheduler_->checkEvent() ; |
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167 | |
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168 | for(auto it=contexts_.begin();it!=contexts_.end();++it) |
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169 | { |
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170 | if (it->second->isFinished()) |
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171 | { |
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172 | delete it->second ; |
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173 | contexts_.erase(it) ; |
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174 | // destroy server_context -> to do later |
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175 | break ; |
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176 | } ; |
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177 | } |
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178 | |
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179 | CTimer::get("CService::eventLoop").suspend(); |
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180 | if (contexts_.empty() && finalizeSignal_) finished_=true ; |
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181 | if (!finished_) CThreadManager::yield() ; |
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182 | } while (!finished_) ; |
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183 | |
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184 | CThreadManager::threadFinalize() ; |
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185 | info(100)<<"Close thread for CService::threadEventLoop, service id = "<<name_<<endl ; |
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186 | } |
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187 | |
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188 | |
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189 | void CService::sendNotification(int rank) |
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190 | { |
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191 | winNotify_->pushToExclusiveWindow(rank, this, &CService::notificationsDumpOut) ; |
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192 | } |
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193 | |
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194 | |
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195 | void CService::notificationsDumpOut(CBufferOut& buffer) |
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196 | { |
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197 | |
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198 | buffer.realloc(maxBufferSize_) ; |
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199 | |
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200 | if (notifyOutType_==NOTIFY_CREATE_CONTEXT) |
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201 | { |
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202 | auto& arg=notifyOutCreateContext_ ; |
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203 | buffer << notifyOutType_ << std::get<0>(arg)<<std::get<1>(arg) << std::get<2>(arg)<<std::get<3>(arg) ; |
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204 | } |
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205 | } |
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206 | |
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207 | void CService::notificationsDumpIn(CBufferIn& buffer) |
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208 | { |
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209 | if (buffer.bufferSize() == 0) notifyInType_= NOTIFY_NOTHING ; |
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210 | else |
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211 | { |
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212 | buffer>>notifyInType_; |
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213 | if (notifyInType_==NOTIFY_CREATE_CONTEXT) |
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214 | { |
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215 | auto& arg=notifyInCreateContext_ ; |
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216 | buffer >> std::get<0>(arg)>> std::get<1>(arg) >> std::get<2>(arg)>> std::get<3>(arg); |
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217 | } |
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218 | } |
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219 | } |
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220 | |
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221 | |
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222 | |
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223 | |
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224 | void CService::checkNotifications(void) |
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225 | { |
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226 | if (!hasNotification_) |
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227 | { |
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228 | double time=MPI_Wtime() ; |
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229 | if (time-lastEventLoop_ > eventLoopLatency_) |
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230 | { |
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231 | int commRank ; |
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232 | MPI_Comm_rank(serviceComm_, &commRank) ; |
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233 | winNotify_->popFromExclusiveWindow(commRank, this, &CService::notificationsDumpIn) ; |
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234 | |
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235 | if (notifyInType_!= NOTIFY_NOTHING) |
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236 | { |
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237 | hasNotification_=true ; |
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238 | std::hash<string> hashString ; |
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239 | size_t hashId = hashString(name_) ; |
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240 | size_t currentTimeLine=0 ; |
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241 | info(40)<<"CService::checkNotifications(void) : receive notification => event scheduler : timeLine : "<<currentTimeLine<<" hashId : "<<hashId<<endl ; |
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242 | eventScheduler_->registerEvent(currentTimeLine,hashId); |
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243 | } |
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244 | lastEventLoop_=time ; |
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245 | } |
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246 | } |
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247 | |
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248 | if (hasNotification_) |
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249 | { |
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250 | std::hash<string> hashString ; |
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251 | size_t hashId = hashString(name_) ; |
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252 | size_t currentTimeLine=0 ; |
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253 | // info(40)<<"CService::checkNotifications(void) : receive notification => event scheduler : eventIsReceived ?"<<endl ; |
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254 | if (eventScheduler_->queryEvent(currentTimeLine,hashId)) |
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255 | { |
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256 | eventScheduler_->popEvent() ; |
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257 | info(40)<<"CService::checkNotifications(void) : receive notification => event scheduler : RECEIVED"<<endl ; |
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258 | if (notifyInType_==NOTIFY_CREATE_CONTEXT) createContext() ; |
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259 | hasNotification_=false ; |
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260 | } |
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261 | } |
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262 | } |
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263 | |
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264 | |
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265 | |
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266 | //ym not use any more |
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267 | void CService::checkCreateContextNotification(void) |
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268 | { |
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269 | int commRank ; |
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270 | MPI_Comm_rank(serviceComm_, &commRank) ; |
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271 | winNotify_->lockWindowExclusive(commRank) ; |
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272 | winNotify_->updateFromLockedWindow(commRank, this, &CService::createContextDumpIn) ; |
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273 | |
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274 | if (!notifications_.empty()) |
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275 | { |
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276 | auto info = notifications_.front() ; |
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277 | createNewContext(get<0>(info), get<1>(info), get<2>(info), get<3>(info)) ; |
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278 | notifications_.pop_front() ; |
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279 | winNotify_->updateToLockedWindow(commRank, this, &CService::createContextDumpOut) ; |
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280 | } |
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281 | winNotify_->unlockWindowExclusive(commRank) ; |
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282 | } |
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283 | |
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284 | void CService::createContext(void) |
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285 | { |
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286 | info(40)<<"CService::createContext(void) : receive createContext notification"<<endl ; |
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287 | auto& arg=notifyInCreateContext_ ; |
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288 | string poolId = get<0>(arg) ; |
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289 | string serviceId = get<1>(arg) ; |
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290 | int partitionId = get<2>(arg) ; |
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291 | string contextId = get<3>(arg) ; |
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292 | contexts_[contextId] = new CServerContext(this, serviceComm_, poolId, serviceId, partitionId, contextId) ; |
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293 | } |
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294 | |
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295 | //to remove, not used anymore |
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296 | void CService::createNewContext(const std::string& poolId, const std::string& serviceId, const int& partitionId, const std::string& contextId) |
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297 | { |
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298 | contexts_[contextId] = new CServerContext(this, serviceComm_, poolId, serviceId, partitionId, contextId) ; |
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299 | } |
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300 | |
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301 | void CService::finalizeSignal(void) |
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302 | { |
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303 | finalizeSignal_=true ; |
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304 | for(auto it=contexts_.begin();it!=contexts_.end();++it) it->second->finalizeSignal() ; |
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305 | } |
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306 | |
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307 | shared_ptr<CEventScheduler> CService::getEventScheduler(void) |
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308 | { |
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309 | return eventScheduler_ ; |
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310 | } |
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311 | } |
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