1 | #include "ep_lib.hpp" |
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2 | #include <mpi.h> |
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3 | #include "ep_declaration.hpp" |
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4 | #include "ep_mpi.hpp" |
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5 | |
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6 | using namespace std; |
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7 | |
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8 | namespace ep_lib |
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9 | { |
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10 | |
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11 | |
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12 | int MPI_Intercomm_create_from_world(MPI_Comm local_comm, int local_leader, void* peer_comm_ptr, int mpi_remote_leader, int tag, MPI_Comm *newintercomm) |
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13 | { |
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14 | int ep_rank, ep_rank_loc, mpi_rank; |
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15 | int ep_size, num_ep, mpi_size; |
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16 | |
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17 | ep_rank = local_comm->ep_comm_ptr->size_rank_info[0].first; |
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18 | ep_rank_loc = local_comm->ep_comm_ptr->size_rank_info[1].first; |
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19 | mpi_rank = local_comm->ep_comm_ptr->size_rank_info[2].first; |
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20 | ep_size = local_comm->ep_comm_ptr->size_rank_info[0].second; |
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21 | num_ep = local_comm->ep_comm_ptr->size_rank_info[1].second; |
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22 | mpi_size = local_comm->ep_comm_ptr->size_rank_info[2].second; |
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23 | |
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24 | std::vector<int> rank_info[4]; //! 0->rank_in_world of local_comm, 1->rank_in_local_parent of local_comm |
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25 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
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26 | |
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27 | int rank_in_world; |
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28 | int rank_in_local_parent; |
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29 | |
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30 | int local_ep_size = ep_size; |
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31 | int remote_ep_size; |
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32 | |
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33 | ::MPI_Comm peer_comm = to_mpi_comm(peer_comm_ptr); |
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34 | ::MPI_Comm local_mpi_comm = to_mpi_comm(local_comm->mpi_comm); |
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35 | |
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36 | ::MPI_Comm_rank(peer_comm, &rank_in_world); |
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37 | |
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38 | ::MPI_Comm_rank(local_mpi_comm, &rank_in_local_parent); |
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39 | |
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40 | bool is_proc_master = false; |
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41 | bool is_local_leader = false; |
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42 | bool is_final_master = false; |
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43 | |
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44 | |
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45 | if(ep_rank == local_leader) { is_proc_master = true; is_local_leader = true; is_final_master = true;} |
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46 | if(ep_rank_loc == 0 && mpi_rank != local_comm->rank_map->at(local_leader).second) is_proc_master = true; |
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47 | |
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48 | |
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49 | int size_info[4]; //! used for choose size of rank_info 0-> mpi_size of local_comm, 1-> mpi_size of remote_comm |
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50 | |
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51 | int leader_info[4]; //! 0->world rank of local_leader, 1->world rank of remote leader |
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52 | |
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53 | |
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54 | std::vector<int> ep_info[2]; //! 0-> num_ep in local_comm, 1->num_ep in remote_comm |
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55 | |
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56 | std::vector<int> new_rank_info[4]; |
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57 | std::vector<int> new_ep_info[2]; |
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58 | |
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59 | std::vector<int> offset; |
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60 | |
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61 | if(is_proc_master) |
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62 | { |
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63 | |
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64 | size_info[0] = mpi_size; |
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65 | |
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66 | rank_info[0].resize(size_info[0]); |
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67 | rank_info[1].resize(size_info[0]); |
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68 | |
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69 | ep_info[0].resize(size_info[0]); |
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70 | |
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71 | vector<int> send_buf(6); |
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72 | vector<int> recv_buf(3*size_info[0]); |
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73 | |
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74 | send_buf[0] = rank_in_world; |
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75 | send_buf[1] = rank_in_local_parent; |
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76 | send_buf[2] = num_ep; |
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77 | |
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78 | ::MPI_Allgather(send_buf.data(), 3, to_mpi_type(MPI_INT), recv_buf.data(), 3, to_mpi_type(MPI_INT), local_mpi_comm); |
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79 | |
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80 | for(int i=0; i<size_info[0]; i++) |
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81 | { |
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82 | rank_info[0][i] = recv_buf[3*i]; |
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83 | rank_info[1][i] = recv_buf[3*i+1]; |
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84 | ep_info[0][i] = recv_buf[3*i+2]; |
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85 | } |
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86 | |
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87 | |
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88 | if(is_local_leader) |
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89 | { |
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90 | leader_info[0] = rank_in_world; |
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91 | leader_info[1] = mpi_remote_leader; |
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92 | |
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93 | ::MPI_Status mpi_status; |
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94 | |
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95 | send_buf[0] = size_info[0]; |
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96 | send_buf[1] = local_ep_size; |
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97 | |
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98 | ::MPI_Send(send_buf.data(), 2, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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99 | |
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100 | ::MPI_Recv(recv_buf.data(), 2, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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101 | |
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102 | recv_buf[2] = rank_in_world; |
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103 | recv_buf[3] = mpi_remote_leader; |
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104 | |
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105 | } |
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106 | |
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107 | ::MPI_Bcast(recv_buf.data(), 4, to_mpi_type(MPI_INT), local_comm->rank_map->at(local_leader).second, local_mpi_comm); |
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108 | |
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109 | size_info[1] = recv_buf[0]; |
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110 | remote_ep_size = recv_buf[1]; |
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111 | leader_info[0] = recv_buf[2]; |
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112 | leader_info[1] = recv_buf[3]; |
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113 | |
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114 | rank_info[2].resize(size_info[1]); |
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115 | rank_info[3].resize(size_info[1]); |
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116 | |
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117 | ep_info[1].resize(size_info[1]); |
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118 | |
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119 | send_buf.resize(3*size_info[0]); |
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120 | recv_buf.resize(3*size_info[1]); |
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121 | |
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122 | if(is_local_leader) |
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123 | { |
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124 | ::MPI_Status mpi_status; |
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125 | |
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126 | |
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127 | std::copy ( rank_info[0].data(), rank_info[0].data() + size_info[0], send_buf.begin() ); |
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128 | std::copy ( rank_info[1].data(), rank_info[1].data() + size_info[0], send_buf.begin() + size_info[0] ); |
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129 | std::copy ( ep_info[0].data(), ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[0] ); |
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130 | |
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131 | ::MPI_Send(send_buf.data(), 3*size_info[0], to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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132 | |
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133 | ::MPI_Recv(recv_buf.data(), 3*size_info[1], to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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134 | |
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135 | } |
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136 | |
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137 | ::MPI_Bcast(recv_buf.data(), 3*size_info[1], to_mpi_type(MPI_INT), local_comm->rank_map->at(local_leader).second, local_mpi_comm); |
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138 | |
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139 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[1], rank_info[2].begin() ); |
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140 | std::copy ( recv_buf.data() + size_info[1], recv_buf.data() + 2*size_info[1], rank_info[3].begin() ); |
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141 | std::copy ( recv_buf.data() + 2*size_info[1], recv_buf.data() + 3*size_info[1], ep_info[1].begin() ); |
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142 | |
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143 | offset.resize(size_info[0]); |
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144 | |
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145 | if(leader_info[0]<leader_info[1]) // erase all ranks doubled with remote_comm, except the local leader |
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146 | { |
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147 | |
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148 | bool found = false; |
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149 | int ep_tmp; |
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150 | int ep_local; |
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151 | int ep_remote; |
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152 | for(int i=0; i<size_info[0]; i++) |
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153 | { |
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154 | int target = rank_info[0][i]; |
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155 | found = false; |
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156 | for(int j=0; j<size_info[1]; j++) |
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157 | { |
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158 | if(target == rank_info[2][j]) |
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159 | { |
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160 | found = true; |
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161 | ep_tmp = ep_info[1][j]; |
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162 | ep_local = ep_info[0][j]; |
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163 | ep_remote = ep_info[1][j]; |
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164 | break; |
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165 | } |
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166 | } |
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167 | if(found) |
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168 | { |
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169 | |
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170 | if(target == leader_info[0]) // the leader is doubled in remote |
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171 | { |
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172 | new_rank_info[0].push_back(target); |
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173 | new_rank_info[1].push_back(rank_info[1][i]); |
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174 | |
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175 | new_ep_info[0].push_back(ep_local + ep_remote); |
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176 | offset[i] = 0; |
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177 | } |
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178 | else |
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179 | { |
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180 | offset[i] = ep_local; |
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181 | } |
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182 | } |
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183 | else |
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184 | { |
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185 | new_rank_info[0].push_back(target); |
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186 | new_rank_info[1].push_back(rank_info[1][i]); |
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187 | |
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188 | new_ep_info[0].push_back(ep_info[0][i]); |
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189 | |
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190 | offset[i] = 0; |
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191 | } |
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192 | |
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193 | } |
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194 | } |
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195 | |
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196 | else // erase rank doubled with remote leader |
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197 | { |
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198 | |
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199 | bool found = false; |
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200 | int ep_tmp; |
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201 | int ep_local; |
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202 | int ep_remote; |
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203 | for(int i=0; i<size_info[0]; i++) |
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204 | { |
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205 | int target = rank_info[0][i]; |
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206 | found = false; |
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207 | for(int j=0; j<size_info[1]; j++) |
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208 | { |
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209 | |
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210 | if(target == rank_info[2][j]) |
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211 | { |
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212 | found = true; |
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213 | ep_tmp = ep_info[1][j]; |
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214 | ep_local = ep_info[0][j]; |
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215 | ep_remote = ep_info[1][j]; |
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216 | break; |
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217 | } |
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218 | } |
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219 | if(found) |
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220 | { |
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221 | if(target != leader_info[1]) |
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222 | { |
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223 | new_rank_info[0].push_back(target); |
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224 | new_rank_info[1].push_back(rank_info[1][i]); |
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225 | |
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226 | new_ep_info[0].push_back(ep_local + ep_remote); |
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227 | offset[i] = 0; |
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228 | } |
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229 | else // found remote leader |
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230 | { |
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231 | offset[i] = ep_remote; |
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232 | } |
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233 | } |
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234 | else |
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235 | { |
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236 | new_rank_info[0].push_back(target); |
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237 | new_rank_info[1].push_back(rank_info[1][i]); |
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238 | |
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239 | new_ep_info[0].push_back(ep_info[0][i]); |
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240 | offset[i] = 0; |
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241 | } |
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242 | } |
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243 | } |
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244 | |
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245 | if(offset[mpi_rank] == 0) |
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246 | { |
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247 | is_final_master = true; |
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248 | } |
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249 | |
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250 | |
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251 | // size_info[4]: 2->size of new_ep_info for local, 3->size of new_ep_info for remote |
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252 | |
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253 | if(is_local_leader) |
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254 | { |
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255 | size_info[2] = new_ep_info[0].size(); |
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256 | ::MPI_Status mpi_status; |
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257 | |
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258 | ::MPI_Send(&size_info[2], 1, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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259 | |
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260 | ::MPI_Recv(&size_info[3], 1, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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261 | } |
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262 | |
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263 | ::MPI_Bcast(&size_info[2], 2, to_mpi_type(MPI_INT), local_comm->rank_map->at(local_leader).second, local_mpi_comm); |
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264 | |
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265 | new_rank_info[2].resize(size_info[3]); |
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266 | new_rank_info[3].resize(size_info[3]); |
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267 | new_ep_info[1].resize(size_info[3]); |
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268 | |
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269 | send_buf.resize(size_info[2]); |
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270 | recv_buf.resize(size_info[3]); |
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271 | |
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272 | if(is_local_leader) |
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273 | { |
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274 | ::MPI_Status mpi_status; |
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275 | |
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276 | std::copy ( new_rank_info[0].data(), new_rank_info[0].data() + size_info[2], send_buf.begin() ); |
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277 | std::copy ( new_rank_info[1].data(), new_rank_info[1].data() + size_info[2], send_buf.begin() + size_info[2] ); |
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278 | std::copy ( new_ep_info[0].data(), new_ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[2] ); |
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279 | |
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280 | ::MPI_Send(send_buf.data(), 3*size_info[2], to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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281 | |
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282 | ::MPI_Recv(recv_buf.data(), 3*size_info[3], to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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283 | } |
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284 | |
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285 | ::MPI_Bcast(recv_buf.data(), 3*size_info[3], to_mpi_type(MPI_INT), local_comm->rank_map->at(local_leader).second, local_mpi_comm); |
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286 | |
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287 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[3], new_rank_info[2].begin() ); |
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288 | std::copy ( recv_buf.data() + size_info[3], recv_buf.data() + 2*size_info[3], new_rank_info[3].begin() ); |
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289 | std::copy ( recv_buf.data() + 2*size_info[3], recv_buf.data() + 3*size_info[3], new_ep_info[1].begin() ); |
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290 | |
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291 | } |
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292 | |
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293 | |
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294 | |
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295 | if(is_proc_master) |
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296 | { |
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297 | // leader_info[4]: 2-> rank of local leader in new_group generated comm; |
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298 | // 3-> rank of remote leader in new_group generated comm; |
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299 | ::MPI_Group local_group; |
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300 | ::MPI_Group new_group; |
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301 | ::MPI_Comm *new_comm = new ::MPI_Comm; |
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302 | ::MPI_Comm *intercomm = new ::MPI_Comm; |
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303 | |
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304 | ::MPI_Comm_group(local_mpi_comm, &local_group); |
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305 | |
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306 | ::MPI_Group_incl(local_group, size_info[2], new_rank_info[1].data(), &new_group); |
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307 | |
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308 | ::MPI_Comm_create(local_mpi_comm, new_group, new_comm); |
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309 | |
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310 | |
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311 | |
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312 | if(is_local_leader) |
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313 | { |
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314 | ::MPI_Comm_rank(*new_comm, &leader_info[2]); |
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315 | } |
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316 | |
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317 | ::MPI_Bcast(&leader_info[2], 1, to_mpi_type(MPI_INT), local_comm->rank_map->at(local_leader).second, local_mpi_comm); |
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318 | |
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319 | if(new_comm != static_cast< ::MPI_Comm* >(MPI_COMM_NULL->mpi_comm)) |
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320 | { |
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321 | ::MPI_Barrier(*new_comm); |
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322 | |
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323 | ::MPI_Intercomm_create(*new_comm, leader_info[2], peer_comm, leader_info[1], tag, intercomm); |
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324 | |
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325 | int id; |
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326 | ::MPI_Comm_rank(*new_comm, &id); |
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327 | int my_num_ep = new_ep_info[0][id]; |
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328 | |
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329 | MPI_Comm *ep_intercomm; |
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330 | MPI_Info info; |
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331 | MPI_Comm_create_endpoints(new_comm, my_num_ep, info, ep_intercomm); |
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332 | |
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333 | for(int i= 0; i<my_num_ep; i++) |
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334 | { |
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335 | ep_intercomm[i]->is_intercomm = true; |
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336 | |
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337 | ep_intercomm[i]->ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
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338 | ep_intercomm[i]->ep_comm_ptr->intercomm->mpi_inter_comm = intercomm; |
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339 | ep_intercomm[i]->ep_comm_ptr->comm_label = leader_info[0]; |
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340 | } |
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341 | |
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342 | |
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343 | #pragma omp critical (write_to_tag_list) |
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344 | tag_list.push_back(make_pair( make_pair(tag, min(leader_info[0], leader_info[1])) , ep_intercomm)); |
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345 | |
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346 | |
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347 | } |
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348 | |
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349 | |
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350 | } |
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351 | |
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352 | |
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353 | vector<int> bcast_buf(8); |
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354 | if(is_local_leader) |
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355 | { |
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356 | std::copy(size_info, size_info+4, bcast_buf.begin()); |
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357 | std::copy(leader_info, leader_info+4, bcast_buf.begin()+4); |
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358 | } |
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359 | |
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360 | |
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361 | |
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362 | MPI_Bcast(bcast_buf.data(), 8, MPI_INT, local_leader, local_comm); |
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363 | |
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364 | |
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365 | if(!is_local_leader) |
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366 | { |
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367 | std::copy(bcast_buf.begin(), bcast_buf.begin()+4, size_info); |
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368 | std::copy(bcast_buf.begin()+4, bcast_buf.begin()+8, leader_info); |
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369 | } |
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370 | |
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371 | |
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372 | |
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373 | if(!is_local_leader) |
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374 | { |
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375 | new_rank_info[1].resize(size_info[2]); |
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376 | ep_info[1].resize(size_info[1]); |
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377 | offset.resize(size_info[0]); |
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378 | } |
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379 | |
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380 | bcast_buf.resize(size_info[2]+size_info[1]+size_info[0]+1); |
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381 | |
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382 | if(is_local_leader) |
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383 | { |
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384 | bcast_buf[0] = remote_ep_size; |
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385 | std::copy(new_rank_info[1].data(), new_rank_info[1].data()+size_info[2], bcast_buf.begin()+1); |
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386 | std::copy(ep_info[1].data(), ep_info[1].data()+size_info[1], bcast_buf.begin()+size_info[2]+1); |
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387 | std::copy(offset.data(), offset.data()+size_info[0], bcast_buf.begin()+size_info[2]+size_info[1]+1); |
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388 | } |
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389 | |
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390 | MPI_Bcast(bcast_buf.data(), size_info[2]+size_info[1]+size_info[0]+1, MPI_INT, local_leader, local_comm); |
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391 | |
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392 | |
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393 | if(!is_local_leader) |
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394 | { |
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395 | remote_ep_size = bcast_buf[0]; |
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396 | std::copy(bcast_buf.data()+1, bcast_buf.data()+1+size_info[2], new_rank_info[1].begin()); |
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397 | std::copy(bcast_buf.data()+1+size_info[2], bcast_buf.data()+1+size_info[2]+size_info[1], ep_info[1].begin()); |
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398 | std::copy(bcast_buf.data()+1+size_info[2]+size_info[1], bcast_buf.data()+1+size_info[2]+size_info[1]+size_info[0], offset.begin()); |
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399 | } |
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400 | |
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401 | |
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402 | int my_position = offset[rank_in_local_parent]+ep_rank_loc; |
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403 | |
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404 | |
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405 | #pragma omp critical (read_from_tag_list) |
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406 | { |
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407 | bool found = false; |
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408 | while(!found) |
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409 | { |
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410 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
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411 | { |
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412 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
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413 | { |
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414 | *newintercomm = iter->second[my_position]; |
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415 | |
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416 | found = true; |
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417 | break; |
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418 | } |
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419 | } |
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420 | } |
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421 | } |
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422 | |
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423 | MPI_Barrier(local_comm); |
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424 | |
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425 | if(is_local_leader) |
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426 | { |
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427 | int local_flag = true; |
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428 | int remote_flag = false; |
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429 | ::MPI_Status mpi_status; |
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430 | |
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431 | ::MPI_Send(&local_flag, 1, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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432 | |
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433 | ::MPI_Recv(&remote_flag, 1, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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434 | } |
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435 | |
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436 | MPI_Barrier(local_comm); |
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437 | |
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438 | if(is_proc_master) |
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439 | { |
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440 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
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441 | { |
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442 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
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443 | { |
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444 | tag_list.erase(iter); |
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445 | break; |
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446 | } |
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447 | } |
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448 | } |
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449 | |
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450 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
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451 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
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452 | |
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453 | intercomm_ep_rank = (*newintercomm)->ep_comm_ptr->size_rank_info[0].first; |
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454 | intercomm_ep_rank_loc = (*newintercomm)->ep_comm_ptr->size_rank_info[1].first; |
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455 | intercomm_mpi_rank = (*newintercomm)->ep_comm_ptr->size_rank_info[2].first; |
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456 | intercomm_ep_size = (*newintercomm)->ep_comm_ptr->size_rank_info[0].second; |
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457 | intercomm_num_ep = (*newintercomm)->ep_comm_ptr->size_rank_info[1].second; |
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458 | intercomm_mpi_size = (*newintercomm)->ep_comm_ptr->size_rank_info[2].second; |
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459 | |
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460 | |
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461 | MPI_Bcast(&remote_ep_size, 1, MPI_INT, local_leader, local_comm); |
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462 | |
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463 | int my_rank_map_elem[2]; |
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464 | |
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465 | |
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466 | my_rank_map_elem[0] = intercomm_ep_rank; |
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467 | |
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468 | my_rank_map_elem[1] = (*newintercomm)->ep_comm_ptr->comm_label; |
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469 | |
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470 | vector<pair<int, int> > local_rank_map_array; |
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471 | vector<pair<int, int> > remote_rank_map_array; |
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472 | |
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473 | |
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474 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
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475 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->resize(local_ep_size); |
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476 | |
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477 | MPI_Allgather(my_rank_map_elem, 2, MPI_INT, (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT, local_comm); |
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478 | |
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479 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
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480 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->resize(remote_ep_size); |
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481 | |
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482 | int local_intercomm_size = intercomm_ep_size; |
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483 | int remote_intercomm_size; |
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484 | |
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485 | |
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486 | if(is_local_leader) |
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487 | { |
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488 | ::MPI_Status status; |
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489 | |
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490 | ::MPI_Send((*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_ep_size, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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491 | |
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492 | ::MPI_Recv((*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
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493 | |
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494 | ::MPI_Send(&local_intercomm_size, 1, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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495 | |
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496 | ::MPI_Recv(&remote_intercomm_size, 1, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
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497 | } |
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498 | |
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499 | MPI_Bcast((*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, MPI_INT, local_leader, local_comm); |
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500 | MPI_Bcast(&remote_intercomm_size, 1, MPI_INT, 0, *newintercomm); |
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501 | |
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502 | |
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503 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map = new RANK_MAP; |
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504 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->resize(remote_intercomm_size); |
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505 | |
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506 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[0] = local_comm->ep_comm_ptr->size_rank_info[0]; |
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507 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[1] = local_comm->ep_comm_ptr->size_rank_info[1]; |
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508 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[2] = local_comm->ep_comm_ptr->size_rank_info[2]; |
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509 | |
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510 | |
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511 | if(is_local_leader) |
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512 | { |
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513 | ::MPI_Status status; |
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514 | |
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515 | ::MPI_Send((*newintercomm)->rank_map->data(), 2*local_intercomm_size, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm); |
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516 | |
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517 | ::MPI_Recv((*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, to_mpi_type(MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
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518 | } |
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519 | |
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520 | MPI_Bcast((*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, MPI_INT, 0, *newintercomm); |
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521 | |
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522 | (*newintercomm)->ep_comm_ptr->intercomm->local_comm = (local_comm->ep_comm_ptr->comm_list[ep_rank_loc]); |
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523 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_tag = local_comm->ep_comm_ptr->comm_label; |
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524 | |
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525 | return MPI_SUCCESS; |
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526 | |
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527 | } |
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528 | |
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529 | // #endif |
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530 | |
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531 | } |
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532 | |
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