1 | /* ************************************************************************** * |
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2 | * Copyright © IPSL/LSCE, XMLIOServer, Avril 2010 - Octobre 2011 * |
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3 | * ************************************************************************** */ |
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4 | |
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5 | #ifndef __MPI_INTERFACE_HPP__ |
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6 | #define __MPI_INTERFACE_HPP__ |
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7 | |
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8 | /** |
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9 | * \file mpi_interface.hpp |
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10 | * \brief Gestion des communications MPI via une surcouche interne (entête). |
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11 | * \author Hervé Ozdoba |
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12 | * \version 0.4 |
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13 | * \date 28 Juin 2011 |
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14 | */ |
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15 | |
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16 | #ifndef __XIOS_NO_EXTERN |
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17 | |
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18 | // M(essage) P(assing) I(nterface) headers |
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19 | #include <mpi.h> |
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20 | |
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21 | // C++ standard headers |
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22 | #include <vector> |
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23 | |
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24 | #endif //__XIOS_NO_EXTERN |
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25 | |
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26 | // XMLIOServer headers |
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27 | #include "xmlioserver_spl.hpp" |
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28 | #include "buffer.hpp" |
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29 | #include "circular_buffer.hpp" |
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30 | #include "linear_buffer.hpp" |
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31 | |
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32 | // ////////////////////////////// Déclarations ///////////////////////////// // |
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33 | |
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34 | namespace xmlioserver |
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35 | { |
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36 | /// \brief Espace de nommage pour les communications via la bibliothÚque MPI. |
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37 | namespace comm |
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38 | { |
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39 | typedef MPI_Fint MPIComm; /*!< \brief Identifiant de communicateur MPI (Fortran). */ |
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40 | typedef MPI_Fint MPIGroup; /*!< \brief Identifiant de groupe MPI (Fortran). */ |
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41 | typedef MPI_Fint MPIRequest; /*!< \brief Identifiant de requête MPI (Fortran). */ |
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42 | typedef MPI_Fint *MPIStatus; /*!< \brief Identifiant de statut MPI (Fortran). */ |
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43 | typedef MPI_Fint MPIDataType; /*!< \brief Identifiant de type de données MPI (Fortran). */ |
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44 | |
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45 | /** |
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46 | * \class CMPIManager |
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47 | * \brief Surcouche interne de la biblià othÚque M(essage) P(assing) I(nterface). |
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48 | */ |
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49 | class CMPIManager |
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50 | { |
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51 | public : // Initialisation & Finalisation |
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52 | |
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53 | static void Initialise(int * argc, char *** argv); |
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54 | static void InitialiseClient(int * argc, char *** argv); |
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55 | static void InitialiseServer(int * argc, char *** argv); |
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56 | static void Finalize(void); |
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57 | |
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58 | public : // Communicateurs |
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59 | |
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60 | |
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61 | |
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62 | static inline MPI_Comm GetCommWorld(void) |
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63 | { return (MPI_COMM_WORLD); } |
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64 | |
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65 | static int GetCommRank(MPI_Comm _comm = MPI_COMM_WORLD); |
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66 | static int GetCommSize(MPI_Comm _comm = MPI_COMM_WORLD); |
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67 | |
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68 | static MPI_Comm CreateComm(MPI_Group _group, MPI_Comm _pcomm=MPI_COMM_WORLD); |
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69 | |
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70 | static inline MPI_Comm GetCommClient(void) |
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71 | { return CommClient; } |
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72 | static inline MPI_Comm GetCommServer(void) |
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73 | { return CommServer; } |
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74 | static inline MPI_Comm GetCommClientServer(void) |
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75 | { return CommClientServer; } |
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76 | static inline int GetNbClient(void) |
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77 | { return NbClient; } |
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78 | static inline int GetNbServer(void) |
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79 | { return NbServer; } |
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80 | |
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81 | static inline bool IsConnected(void) |
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82 | { return (NbServer==0)?true:false; } |
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83 | |
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84 | static inline bool IsClient(void) |
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85 | { return _IsClient; } |
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86 | |
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87 | static inline bool IsServer(void) |
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88 | { return _IsServer; } |
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89 | |
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90 | public : // Autre |
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91 | |
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92 | static void Barrier(MPI_Comm _comm = MPI_COMM_WORLD); |
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93 | |
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94 | static bool DispatchClient(bool _is_server, |
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95 | MPI_Comm & _comm_client, |
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96 | MPI_Comm & _comm_client_server, |
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97 | MPI_Comm & _comm_server, |
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98 | MPI_Comm _comm_parent); |
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99 | |
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100 | public : // Groupes |
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101 | |
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102 | static MPI_Group GetGroupWorld(void); |
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103 | static MPI_Group GetGroup(MPI_Comm Comm); |
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104 | static MPI_Group CreateSubGroup(MPI_Group _pgroup, const std::vector<int> & _ranks); |
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105 | static MPI_Group CreateSubGroup(MPI_Group _pgroup, int _min_rank, int _max_rank, int _intval = 1); |
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106 | |
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107 | public : // Tests |
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108 | |
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109 | |
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110 | |
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111 | static bool IsMaster(MPI_Comm _comm = MPI_COMM_WORLD); |
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112 | static bool IsRank(int _rank, MPI_Comm _comm = MPI_COMM_WORLD); |
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113 | |
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114 | public : // Communication simple |
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115 | |
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116 | static void Send (MPI_Comm _comm, int _dest_rank, char * _data, |
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117 | std::size_t _size, MPI_Request & _request); |
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118 | static void Wait (MPI_Request & _request); |
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119 | static bool Test (MPI_Request & _request); |
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120 | |
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121 | |
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122 | static bool HasReceivedData(MPI_Comm _comm, int _src_rank); |
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123 | |
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124 | static std::size_t GetReceivedDataSize(MPI_Comm _comm, int _src_rank); |
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125 | |
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126 | static void Receive(MPI_Comm _comm, int _src_rank, char * _data); |
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127 | |
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128 | static void AllGather(int _indata, std::vector<int> & _outdata, |
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129 | MPI_Comm _comm = MPI_COMM_WORLD); |
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130 | |
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131 | static void AllGather(const std::vector<int> & _indata, |
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132 | std::vector<int> & _outdata, |
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133 | MPI_Comm _comm = MPI_COMM_WORLD); |
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134 | |
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135 | |
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136 | public : // Communication 'complexe' |
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137 | |
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138 | |
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139 | static void SendLinearBuffer(MPI_Comm _comm, int _dest_rank, CLinearBuffer & _lbuffer, MPI_Request & _request); |
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140 | static void ReceiveLinearBuffer(MPI_Comm _comm, int _src_rank, CLinearBuffer & _lbuffer); |
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141 | static boost::shared_ptr<CLinearBuffer> ReceiveLinearBuffer(MPI_Comm _comm, int _src_rank); |
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142 | static void ReceiveCircularBuffer(MPI_Comm _comm, int _src_rank, CCircularBuffer & _cbuffer); |
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143 | |
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144 | |
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145 | |
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146 | public : // Mémoire (non fonctionnel ....) |
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147 | |
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148 | static void AllocMemory(void * _data, std::size_t _size); |
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149 | static void FreeMemory (void * _data); |
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150 | |
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151 | private : |
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152 | |
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153 | static bool Initialized ; |
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154 | static MPI_Comm CommClient ; |
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155 | static MPI_Comm CommServer ; |
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156 | static MPI_Comm CommClientServer ; |
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157 | static int NbClient ; |
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158 | static int NbServer ; |
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159 | |
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160 | static bool _IsClient ; |
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161 | static bool _IsServer ; |
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162 | static bool using_server ; |
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163 | static bool using_oasis ; |
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164 | |
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165 | }; // class CMPIManager |
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166 | |
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167 | |
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168 | |
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169 | } // namespace comm |
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170 | } // namespace xmlioserver |
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171 | |
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172 | #endif //__MPI_INTERFACE_HPP__ |
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