1 | #ifndef __CONTEXT_CLIENT_HPP__ |
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2 | #define __CONTEXT_CLIENT_HPP__ |
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3 | |
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4 | #include "xios_spl.hpp" |
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5 | #include "buffer_out.hpp" |
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6 | #include "buffer_in.hpp" |
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7 | #include "buffer_client.hpp" |
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8 | #include "event_client.hpp" |
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9 | #include "event_server.hpp" |
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10 | #include "mpi.hpp" |
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11 | #include "registry.hpp" |
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12 | |
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13 | namespace xios |
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14 | { |
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15 | class CContext; |
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16 | |
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17 | /*! |
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18 | \class CContextClient |
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19 | A context can be both on client and on server side. In order to differenciate the role of |
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20 | context on each side, e.x client sending events, server receiving and processing events, there is a need of |
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21 | concrete "context" classes for both sides. |
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22 | CContextClient processes and sends events from client to server where CContextServer receives these events |
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23 | and processes them. |
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24 | */ |
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25 | class CContextClient |
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26 | { |
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27 | public: |
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28 | // Contructor |
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29 | CContextClient(CContext* parent, MPI_Comm intraComm, MPI_Comm interComm, CContext* parentServer = 0); |
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30 | |
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31 | // Send event to server |
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32 | void sendEvent(CEventClient& event); |
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33 | void waitEvent(list<int>& ranks); |
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34 | void waitEvent_old(list<int>& ranks); |
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35 | |
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36 | // Functions to set/get buffers |
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37 | bool getBuffers(const size_t timeLine, const list<int>& serverList, const list<int>& sizeList, list<CBufferOut*>& retBuffers, bool nonBlocking = false); |
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38 | void newBuffer(int rank); |
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39 | bool checkBuffers(list<int>& ranks); |
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40 | bool checkBuffers(void); |
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41 | void releaseBuffers(void); |
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42 | bool havePendingRequests(void); |
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43 | |
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44 | bool isServerLeader(void) const; |
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45 | bool isServerNotLeader(void) const; |
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46 | const std::list<int>& getRanksServerLeader(void) const; |
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47 | const std::list<int>& getRanksServerNotLeader(void) const; |
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48 | |
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49 | /*! |
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50 | * Check if the attached mode is used. |
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51 | * |
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52 | * \return true if and only if attached mode is used |
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53 | */ |
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54 | bool isAttachedModeEnabled() const { return isAttached_ ; } |
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55 | |
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56 | static void computeLeader(int clientRank, int clientSize, int serverSize, |
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57 | std::list<int>& rankRecvLeader, |
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58 | std::list<int>& rankRecvNotLeader); |
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59 | |
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60 | // Close and finalize context client |
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61 | // void closeContext(void); Never been implemented. |
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62 | bool isNotifiedFinalized(void) ; |
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63 | void finalize(void); |
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64 | |
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65 | void setBufferSize(const std::map<int,StdSize>& mapSize, const std::map<int,StdSize>& maxEventSize); |
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66 | |
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67 | public: |
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68 | CContext* context; //!< Context for client |
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69 | |
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70 | size_t timeLine; //!< Timeline of each event |
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71 | |
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72 | int clientRank; //!< Rank of current client |
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73 | |
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74 | int clientSize; //!< Size of client group |
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75 | |
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76 | int serverSize; //!< Size of server group |
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77 | |
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78 | MPI_Comm interComm; //!< Communicator of server group (interCommunicator) |
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79 | |
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80 | MPI_Comm interCommMerged; //!< Communicator of the client group + server group (intraCommunicator) needed for one sided communication. |
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81 | |
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82 | MPI_Comm intraComm; //!< Communicator of client group |
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83 | |
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84 | MPI_Comm commSelf; //!< Communicator of the client alone. Needed to create a new communicator between 1 proc client and 1 proc server for one sided communication |
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85 | |
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86 | map<int,CClientBuffer*> buffers; //!< Buffers for connection to servers |
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87 | |
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88 | bool pureOneSided ; //!< if true, client will communicated with servers only trough one sided communication. Otherwise the hybrid mode P2P /One sided is used. |
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89 | |
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90 | private: |
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91 | void lockBuffers(list<int>& ranks) ; |
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92 | void unlockBuffers(list<int>& ranks) ; |
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93 | |
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94 | //! Mapping of server and buffer size for each connection to server |
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95 | std::map<int,StdSize> mapBufferSize_; |
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96 | //! Maximum event sizes estimated for each connection to server |
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97 | std::map<int,StdSize> maxEventSizes; |
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98 | //! Maximum number of events that can be buffered |
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99 | StdSize maxBufferedEvents; |
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100 | |
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101 | //! Context for server (Only used in attached mode) |
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102 | CContext* parentServer; |
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103 | |
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104 | //! List of server ranks for which the client is leader |
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105 | std::list<int> ranksServerLeader; |
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106 | |
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107 | //! List of server ranks for which the client is not leader |
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108 | std::list<int> ranksServerNotLeader; |
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109 | |
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110 | std::vector<std::vector<MPI_Win> >windows ; //! one sided mpi windows to expose client buffers to servers == windows[nbServers][2] |
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111 | bool isAttached_ ; |
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112 | |
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113 | }; |
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114 | } |
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115 | |
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116 | #endif // __CONTEXT_CLIENT_HPP__ |
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