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 | |
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9 | namespace ep_lib |
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10 | { |
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11 | int MPI_Intercomm_create_kernel(MPI_Comm local_comm, int local_leader, MPI_Comm peer_comm, int remote_leader, int tag, MPI_Comm *newintercomm) |
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12 | { |
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13 | int ep_rank, ep_rank_loc, mpi_rank; |
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14 | int ep_size, num_ep, mpi_size; |
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15 | |
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16 | ep_rank = local_comm->ep_comm_ptr->size_rank_info[0].first; |
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17 | ep_rank_loc = local_comm->ep_comm_ptr->size_rank_info[1].first; |
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18 | mpi_rank = local_comm->ep_comm_ptr->size_rank_info[2].first; |
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19 | ep_size = local_comm->ep_comm_ptr->size_rank_info[0].second; |
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20 | num_ep = local_comm->ep_comm_ptr->size_rank_info[1].second; |
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21 | mpi_size = local_comm->ep_comm_ptr->size_rank_info[2].second; |
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22 | |
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23 | |
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24 | // step 1 : local leaders exchange ep_size then bcast to all ep in local_comm |
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25 | |
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26 | int remote_ep_size; |
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27 | bool is_local_leader = ep_rank==local_leader? true: false; |
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28 | |
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29 | if(is_local_leader) |
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30 | { |
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31 | MPI_Request request[2]; |
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32 | MPI_Status status[2]; |
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33 | MPI_Isend(&ep_size, 1, MPI_INT, remote_leader, tag, peer_comm, &request[0]); |
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34 | MPI_Irecv(&remote_ep_size, 1, MPI_INT, remote_leader, tag, peer_comm, &request[1]); |
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35 | MPI_Waitall(2, request, status); |
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36 | } |
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37 | |
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38 | MPI_Bcast(&remote_ep_size, 1, MPI_INT, local_leader, local_comm); |
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39 | |
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40 | #ifdef _showinfo |
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41 | MPI_Barrier(peer_comm); |
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42 | MPI_Barrier(peer_comm); |
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43 | #pragma omp critical(stdoutput) |
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44 | printf("peer_rank = %d, ep_size = %d, remote_ep_size = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, ep_size, remote_ep_size); |
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45 | MPI_Barrier(peer_comm); |
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46 | MPI_Barrier(peer_comm); |
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47 | #endif |
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48 | |
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49 | // step 2 : gather ranks in world for both local and remote comm |
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50 | |
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51 | int rank_in_world; |
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52 | ::MPI_Comm_rank(to_mpi_comm(MPI_COMM_WORLD->mpi_comm), &rank_in_world); |
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53 | |
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54 | int *ranks_in_world_local = new int[ep_size]; |
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55 | int *ranks_in_world_remote = new int[remote_ep_size]; |
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56 | |
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57 | MPI_Allgather(&rank_in_world, 1, MPI_INT, ranks_in_world_local, 1, MPI_INT, local_comm); |
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58 | |
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59 | if(is_local_leader) |
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60 | { |
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61 | MPI_Request request[2]; |
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62 | MPI_Status status[2]; |
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63 | MPI_Isend(ranks_in_world_local, ep_size, MPI_INT, remote_leader, tag, peer_comm, &request[0]); |
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64 | MPI_Irecv(ranks_in_world_remote, remote_ep_size, MPI_INT, remote_leader, tag, peer_comm, &request[1]); |
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65 | MPI_Waitall(2, request, status); |
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66 | } |
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67 | |
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68 | MPI_Bcast(ranks_in_world_remote, remote_ep_size, MPI_INT, local_leader, local_comm); |
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69 | |
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70 | #ifdef _showinfo |
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71 | |
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72 | MPI_Barrier(peer_comm); |
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73 | MPI_Barrier(peer_comm); |
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74 | |
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75 | if(remote_leader == 4) |
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76 | { |
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77 | for(int i=0; i<ep_size; i++) |
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78 | { |
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79 | if(ep_rank == i) |
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80 | { |
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81 | printf("peer_rank = %d, ranks_in_world_local = \n", peer_comm->ep_comm_ptr->size_rank_info[0].first); |
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82 | for(int i=0; i<ep_size; i++) |
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83 | { |
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84 | printf("%d\t", ranks_in_world_local[i]); |
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85 | } |
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86 | |
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87 | printf("\npeer_rank = %d, ranks_in_world_remote = \n", peer_comm->ep_comm_ptr->size_rank_info[0].first); |
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88 | for(int i=0; i<remote_ep_size; i++) |
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89 | { |
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90 | printf("%d\t", ranks_in_world_remote[i]); |
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91 | } |
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92 | printf("\n"); |
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93 | |
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94 | } |
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95 | |
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96 | MPI_Barrier(local_comm); |
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97 | MPI_Barrier(local_comm); |
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98 | MPI_Barrier(local_comm); |
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99 | } |
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100 | } |
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101 | |
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102 | MPI_Barrier(peer_comm); |
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103 | MPI_Barrier(peer_comm); |
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104 | MPI_Barrier(peer_comm); |
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105 | |
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106 | if(remote_leader == 13) |
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107 | { |
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108 | for(int i=0; i<ep_size; i++) |
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109 | { |
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110 | if(ep_rank == i) |
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111 | { |
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112 | printf("peer_rank = %d, ranks_in_world_local = \n", peer_comm->ep_comm_ptr->size_rank_info[0].first); |
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113 | for(int i=0; i<ep_size; i++) |
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114 | { |
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115 | printf("%d\t", ranks_in_world_local[i]); |
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116 | } |
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117 | |
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118 | printf("\npeer_rank = %d, ranks_in_world_remote = \n", peer_comm->ep_comm_ptr->size_rank_info[0].first); |
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119 | for(int i=0; i<remote_ep_size; i++) |
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120 | { |
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121 | printf("%d\t", ranks_in_world_remote[i]); |
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122 | } |
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123 | printf("\n"); |
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124 | |
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125 | } |
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126 | |
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127 | MPI_Barrier(local_comm); |
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128 | MPI_Barrier(local_comm); |
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129 | MPI_Barrier(local_comm); |
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130 | } |
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131 | } |
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132 | |
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133 | MPI_Barrier(peer_comm); |
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134 | MPI_Barrier(peer_comm); |
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135 | |
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136 | #endif |
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137 | |
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138 | |
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139 | // step 3 : determine the priority and ownership of each ep |
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140 | |
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141 | int local_leader_rank_in_peer; |
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142 | int remote_leader_rank_in_peer; |
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143 | |
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144 | if(is_local_leader) MPI_Comm_rank(peer_comm, &local_leader_rank_in_peer); |
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145 | |
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146 | if(is_local_leader) |
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147 | { |
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148 | MPI_Request request[2]; |
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149 | MPI_Status status[2]; |
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150 | MPI_Isend(&local_leader_rank_in_peer, 1, MPI_INT, remote_leader, tag, peer_comm, &request[0]); |
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151 | MPI_Irecv(&remote_leader_rank_in_peer, 1, MPI_INT, remote_leader, tag, peer_comm, &request[1]); |
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152 | MPI_Waitall(2, request, status); |
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153 | } |
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154 | |
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155 | MPI_Bcast(&local_leader_rank_in_peer, 1, MPI_INT, local_leader, local_comm); |
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156 | MPI_Bcast(&remote_leader_rank_in_peer, 1, MPI_INT, local_leader, local_comm); |
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157 | |
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158 | bool priority = local_leader_rank_in_peer > remote_leader_rank_in_peer? true : false; |
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159 | |
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160 | #ifdef _showinfo |
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161 | MPI_Barrier(peer_comm); |
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162 | MPI_Barrier(peer_comm); |
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163 | printf("peer_rank = %d, priority = %d, local_leader_rank_in_peer = %d, remote_leader_rank_in_peer = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, priority, local_leader_rank_in_peer, remote_leader_rank_in_peer); |
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164 | MPI_Barrier(peer_comm); |
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165 | MPI_Barrier(peer_comm); |
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166 | #endif |
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167 | |
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168 | int local_leader_rank_in_world = ranks_in_world_local[local_leader]; |
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169 | int remote_leader_rank_in_world; |
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170 | |
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171 | if(is_local_leader) |
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172 | { |
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173 | MPI_Request request[2]; |
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174 | MPI_Status status[2]; |
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175 | MPI_Isend(&local_leader_rank_in_world, 1, MPI_INT, remote_leader, tag, peer_comm, &request[0]); |
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176 | MPI_Irecv(&remote_leader_rank_in_world, 1, MPI_INT, remote_leader, tag, peer_comm, &request[1]); |
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177 | MPI_Waitall(2, request, status); |
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178 | } |
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179 | |
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180 | MPI_Bcast(&remote_leader_rank_in_world, 1, MPI_INT, local_leader, local_comm); |
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181 | |
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182 | int ownership; |
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183 | |
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184 | if(rank_in_world == ranks_in_world_local[local_leader]) ownership = 1; |
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185 | else if(rank_in_world == remote_leader_rank_in_world) ownership = 0; |
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186 | else |
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187 | { |
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188 | ownership = 1; |
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189 | for(int i=0; i<remote_ep_size; i++) |
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190 | { |
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191 | if(rank_in_world == ranks_in_world_remote[i]) |
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192 | { |
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193 | ownership = priority? 1 : 0; |
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194 | break; |
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195 | } |
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196 | } |
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197 | } |
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198 | |
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199 | #ifdef _showinfo |
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200 | MPI_Barrier(peer_comm); |
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201 | MPI_Barrier(peer_comm); |
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202 | printf("peer_rank = %d, priority = %d, ownership = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, priority, ownership); |
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203 | MPI_Barrier(peer_comm); |
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204 | MPI_Barrier(peer_comm); |
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205 | #endif |
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206 | |
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207 | |
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208 | // step 4 : extract local_comm and create intercomm |
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209 | |
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210 | bool is_involved = is_local_leader || (!is_local_leader && ep_rank_loc == 0 && rank_in_world != local_leader_rank_in_world); |
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211 | |
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212 | #ifdef _showinfo |
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213 | |
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214 | MPI_Barrier(peer_comm); |
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215 | MPI_Barrier(peer_comm); |
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216 | printf("peer_rank = %d, is_involved = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, is_involved); |
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217 | MPI_Barrier(peer_comm); |
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218 | MPI_Barrier(peer_comm); |
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219 | |
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220 | #endif |
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221 | |
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222 | if(is_involved) |
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223 | { |
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224 | ::MPI_Group local_group; |
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225 | ::MPI_Group extracted_group; |
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226 | ::MPI_Comm *extracted_comm = new ::MPI_Comm; |
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227 | |
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228 | |
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229 | ::MPI_Comm_group(to_mpi_comm(local_comm->mpi_comm), &local_group); |
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230 | |
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231 | int *ownership_list = new int[mpi_size]; |
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232 | int *mpi_rank_list = new int[mpi_size]; |
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233 | |
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234 | ::MPI_Allgather(&ownership, 1, to_mpi_type(MPI_INT), ownership_list, 1, to_mpi_type(MPI_INT), to_mpi_comm(local_comm->mpi_comm)); |
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235 | ::MPI_Allgather(&mpi_rank, 1, to_mpi_type(MPI_INT), mpi_rank_list, 1, to_mpi_type(MPI_INT), to_mpi_comm(local_comm->mpi_comm)); |
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236 | |
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237 | |
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238 | int n=0; |
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239 | for(int i=0; i<mpi_size; i++) |
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240 | { |
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241 | n+=ownership_list[i]; |
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242 | } |
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243 | |
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244 | int *new_mpi_rank_list = new int[n]; |
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245 | int j=0; |
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246 | for(int i=0; i<mpi_size; i++) |
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247 | { |
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248 | if(ownership_list[i] !=0) |
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249 | { |
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250 | new_mpi_rank_list[j++] = mpi_rank_list[i]; |
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251 | } |
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252 | } |
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253 | |
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254 | |
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255 | ::MPI_Group_incl(local_group, n, new_mpi_rank_list, &extracted_group); |
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256 | |
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257 | ::MPI_Comm_create(to_mpi_comm(local_comm->mpi_comm), extracted_group, extracted_comm); |
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258 | |
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259 | ::MPI_Comm *mpi_inter_comm = new ::MPI_Comm; |
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260 | |
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261 | int local_leader_rank_in_extracted_comm; |
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262 | |
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263 | if(is_local_leader) |
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264 | { |
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265 | ::MPI_Comm_rank(*extracted_comm, &local_leader_rank_in_extracted_comm); |
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266 | } |
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267 | |
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268 | ::MPI_Bcast(&local_leader_rank_in_extracted_comm, 1, to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, to_mpi_comm(local_comm->mpi_comm)); |
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269 | |
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270 | int local_leader_rank_in_peer_mpi; |
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271 | int remote_leader_rank_in_peer_mpi; |
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272 | |
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273 | ::MPI_Comm_rank(to_mpi_comm(peer_comm->mpi_comm), &local_leader_rank_in_peer_mpi); |
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274 | |
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275 | if(is_local_leader) |
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276 | { |
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277 | MPI_Request request[2]; |
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278 | MPI_Status status[2]; |
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279 | MPI_Isend(&local_leader_rank_in_peer_mpi, 1, MPI_INT, remote_leader, tag, peer_comm, &request[0]); |
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280 | MPI_Irecv(&remote_leader_rank_in_peer_mpi, 1, MPI_INT, remote_leader, tag, peer_comm, &request[1]); |
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281 | MPI_Waitall(2, request, status); |
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282 | } |
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283 | |
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284 | ::MPI_Bcast(&remote_leader_rank_in_peer_mpi, 1, to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, to_mpi_comm(local_comm->mpi_comm)); |
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285 | |
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286 | |
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287 | if(ownership) |
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288 | ::MPI_Intercomm_create(*extracted_comm, local_leader_rank_in_extracted_comm, to_mpi_comm(peer_comm->mpi_comm), remote_leader_rank_in_peer_mpi, tag, mpi_inter_comm); |
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289 | |
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290 | |
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291 | // step 5 :: determine new num_ep |
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292 | |
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293 | int num_ep_count=0; |
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294 | |
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295 | for(int i=0; i<ep_size; i++) |
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296 | { |
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297 | if(rank_in_world == ranks_in_world_local[i]) |
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298 | num_ep_count++; |
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299 | } |
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300 | |
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301 | for(int i=0; i<remote_ep_size; i++) |
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302 | { |
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303 | if(rank_in_world == ranks_in_world_remote[i]) |
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304 | num_ep_count++; |
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305 | } |
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306 | |
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307 | //printf("peer_rank = %d, num_ep_count = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, num_ep_count); |
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308 | |
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309 | |
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310 | // step 6 : create endpoints from extracted_comm |
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311 | |
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312 | if(ownership) |
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313 | { |
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314 | MPI_Comm *ep_comm; |
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315 | MPI_Info info; |
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316 | MPI_Comm_create_endpoints(extracted_comm, num_ep_count, info, ep_comm); |
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317 | |
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318 | for(int i=0; i<num_ep_count; i++) |
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319 | { |
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320 | ep_comm[i]->is_intercomm = true; |
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321 | ep_comm[i]->ep_comm_ptr->comm_label = ranks_in_world_local[local_leader]; |
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322 | ep_comm[i]->ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
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323 | ep_comm[i]->ep_comm_ptr->intercomm->mpi_inter_comm = mpi_inter_comm; |
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324 | } |
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325 | |
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326 | //delete ep_comm[0]->ep_rank_map; |
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327 | |
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328 | |
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329 | #pragma omp critical (write_to_tag_list) |
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330 | intercomm_list.push_back(make_pair( make_pair(tag, min(local_leader_rank_in_world, remote_leader_rank_in_world)) , make_pair(ep_comm , make_pair(num_ep_count, 0)))); |
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331 | #pragma omp flush |
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332 | #ifdef _showinfo |
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333 | for(int i=0; i<num_ep_count; i++) |
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334 | printf("peer_rank = %d, ep_comm = %p, ep_comm[%d] -> new_ep_rank = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, ep_comm, i, ep_comm[i]->ep_comm_ptr->size_rank_info[0].first); |
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335 | #endif |
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336 | } |
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337 | |
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338 | |
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339 | delete ownership_list; |
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340 | delete mpi_rank_list; |
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341 | delete new_mpi_rank_list; |
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342 | |
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343 | } |
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344 | |
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345 | int repeated=0; |
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346 | for(int i=0; i<remote_ep_size; i++) |
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347 | { |
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348 | if(rank_in_world == ranks_in_world_remote[i]) |
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349 | repeated++; |
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350 | } |
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351 | |
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352 | int my_turn = ownership? ep_rank_loc : ep_rank_loc+repeated; |
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353 | |
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354 | #ifdef _showinfo |
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355 | |
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356 | MPI_Barrier(peer_comm); |
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357 | MPI_Barrier(peer_comm); |
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358 | printf("peer_rank = %d, ep_rank_loc = %d, ownership = %d, repeated = %d, my_turn = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, ep_rank_loc, ownership, repeated, my_turn); |
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359 | MPI_Barrier(peer_comm); |
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360 | MPI_Barrier(peer_comm); |
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361 | |
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362 | #endif |
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363 | |
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364 | |
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365 | #pragma omp flush |
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366 | #pragma omp critical (read_from_intercomm_list) |
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367 | { |
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368 | bool flag=true; |
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369 | while(flag) |
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370 | { |
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371 | for(std::list<std::pair<std::pair<int, int> , std::pair<MPI_Comm * , std::pair<int, int> > > >::iterator iter = intercomm_list.begin(); iter!=intercomm_list.end(); iter++) |
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372 | { |
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373 | if(iter->first == make_pair(tag, min(local_leader_rank_in_world, remote_leader_rank_in_world))) |
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374 | { |
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375 | *newintercomm = iter->second.first[my_turn]; |
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376 | |
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377 | iter->second.second.second++; |
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378 | |
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379 | if(iter->second.second.first == iter->second.second.second) |
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380 | intercomm_list.erase(iter); |
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381 | |
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382 | flag = false; |
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383 | break; |
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384 | } |
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385 | } |
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386 | } |
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387 | } |
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388 | |
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389 | #ifdef _showinfo |
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390 | |
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391 | MPI_Barrier(peer_comm); |
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392 | MPI_Barrier(peer_comm); |
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393 | printf("peer_rank = %d, test_rank = %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, (*newintercomm)->ep_comm_ptr->size_rank_info[0].first); |
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394 | MPI_Barrier(peer_comm); |
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395 | MPI_Barrier(peer_comm); |
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396 | |
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397 | #endif |
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398 | |
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399 | |
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400 | // step 7 : create intercomm_rank_map for local leaders |
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401 | |
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402 | int my_quadruple[4]; |
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403 | |
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404 | my_quadruple[0] = ep_rank; |
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405 | my_quadruple[1] = (*newintercomm)->ep_comm_ptr->size_rank_info[1].first; |
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406 | my_quadruple[2] = (*newintercomm)->ep_comm_ptr->size_rank_info[2].first; |
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407 | my_quadruple[3] = (*newintercomm)->ep_comm_ptr->comm_label; |
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408 | |
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409 | |
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410 | #ifdef _showinfo |
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411 | |
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412 | MPI_Barrier(peer_comm); |
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413 | MPI_Barrier(peer_comm); |
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414 | printf("peer_rank = %d, my_quadruple = %d %d %d %d\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, my_quadruple[0], my_quadruple[1], my_quadruple[2], my_quadruple[3]); |
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415 | MPI_Barrier(peer_comm); |
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416 | MPI_Barrier(peer_comm); |
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417 | #endif |
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418 | |
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419 | int *local_quadruple_list; |
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420 | int *remote_quadruple_list; |
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421 | if(is_involved) |
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422 | { |
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423 | local_quadruple_list = new int[4*ep_size]; |
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424 | remote_quadruple_list = new int[4*remote_ep_size]; |
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425 | |
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426 | } |
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427 | |
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428 | MPI_Gather(my_quadruple, 4, MPI_INT, local_quadruple_list, 4, MPI_INT, local_leader, local_comm); |
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429 | |
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430 | |
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431 | if(is_local_leader) |
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432 | { |
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433 | MPI_Request request[2]; |
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434 | MPI_Status status[2]; |
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435 | MPI_Isend(local_quadruple_list, 4*ep_size, MPI_INT, remote_leader, tag, peer_comm, &request[0]); |
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436 | MPI_Irecv(remote_quadruple_list, 4*remote_ep_size, MPI_INT, remote_leader, tag, peer_comm, &request[1]); |
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437 | MPI_Waitall(2, request, status); |
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438 | } |
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439 | |
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440 | if(is_involved) |
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441 | { |
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442 | ::MPI_Bcast(remote_quadruple_list, 4*remote_ep_size, to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, to_mpi_comm(local_comm->mpi_comm)); |
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443 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map = new INTERCOMM_RANK_MAP; |
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444 | for(int i=0; i<remote_ep_size; i++) |
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445 | { |
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446 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->insert(std::pair<int, std::pair< int, std::pair<int, int> > >(remote_quadruple_list[4*i], remote_quadruple_list[4*i+1], remote_quadruple_list[4*i+2], remote_quadruple_list[4*i+3])); |
---|
447 | } |
---|
448 | } |
---|
449 | |
---|
450 | |
---|
451 | // step 8 : associate intercomm_rank_map to endpoints |
---|
452 | |
---|
453 | int *leader_rank_in_world_local_gathered = new int[(*newintercomm)->ep_comm_ptr->size_rank_info[1].second]; |
---|
454 | |
---|
455 | MPI_Allgather_local(&local_leader_rank_in_world, 1, MPI_INT, leader_rank_in_world_local_gathered, *newintercomm); |
---|
456 | |
---|
457 | |
---|
458 | int new_rank_loc = (*newintercomm)->ep_comm_ptr->size_rank_info[1].first; |
---|
459 | int *new_rank_loc_local_gathered = new int[(*newintercomm)->ep_comm_ptr->size_rank_info[1].second]; |
---|
460 | |
---|
461 | MPI_Allgather_local(&new_rank_loc, 1, MPI_INT, new_rank_loc_local_gathered, *newintercomm); |
---|
462 | |
---|
463 | //printf("peer_rank = %d, leader_rank_in_world_local_gathered = %d %d %d %d, new_rank_loc_local_gathered = %d %d %d %d\n", |
---|
464 | // peer_comm->ep_comm_ptr->size_rank_info[0].first, leader_rank_in_world_local_gathered[0], leader_rank_in_world_local_gathered[1], leader_rank_in_world_local_gathered[2], leader_rank_in_world_local_gathered[3], |
---|
465 | // new_rank_loc_local_gathered[0], new_rank_loc_local_gathered[1], new_rank_loc_local_gathered[2], new_rank_loc_local_gathered[3]); |
---|
466 | |
---|
467 | if(is_involved) |
---|
468 | { |
---|
469 | if((*newintercomm)->ep_comm_ptr->size_rank_info[1].first == 0) |
---|
470 | { |
---|
471 | (*newintercomm)->ep_rank_map->clear(); |
---|
472 | delete (*newintercomm)->ep_rank_map; |
---|
473 | } |
---|
474 | (*newintercomm)->ep_rank_map = new EP_RANK_MAP[ep_size]; |
---|
475 | *((*newintercomm)->ep_rank_map) = *(local_comm->ep_rank_map); |
---|
476 | } |
---|
477 | |
---|
478 | MPI_Barrier_local(*newintercomm); |
---|
479 | |
---|
480 | |
---|
481 | if(!is_involved) |
---|
482 | { |
---|
483 | int target; |
---|
484 | for(int i=0; i<(*newintercomm)->ep_comm_ptr->size_rank_info[1].second; i++) |
---|
485 | { |
---|
486 | if(local_leader_rank_in_world == leader_rank_in_world_local_gathered[i]) |
---|
487 | { |
---|
488 | target = i; |
---|
489 | break; |
---|
490 | } |
---|
491 | } |
---|
492 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map = (*newintercomm)->ep_comm_ptr->comm_list[target]->ep_comm_ptr->intercomm->intercomm_rank_map; |
---|
493 | (*newintercomm)->ep_rank_map = (*newintercomm)->ep_comm_ptr->comm_list[target]->ep_rank_map; |
---|
494 | } |
---|
495 | |
---|
496 | |
---|
497 | //printf("peer_rank = %d, intercomm_rank_map add = %p\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map); |
---|
498 | |
---|
499 | |
---|
500 | if(peer_comm->ep_comm_ptr->size_rank_info[0].first == 5) |
---|
501 | { |
---|
502 | int receiver = rand()%10; |
---|
503 | printf("receiver = %d, intercomm_local_rank = %d, intercomm_mpi_rank = %d, comm_label = %d\n", receiver, (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(receiver).first, |
---|
504 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(receiver).second.first, (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(receiver).second.second); |
---|
505 | } |
---|
506 | |
---|
507 | if(peer_comm->ep_comm_ptr->size_rank_info[0].first == 9) |
---|
508 | { |
---|
509 | int receiver = rand()%6; |
---|
510 | printf("receiver = %d, intercomm_local_rank = %d, intercomm_mpi_rank = %d, comm_label = %d\n", receiver, (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(receiver).first, |
---|
511 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(receiver).second.first, (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(receiver).second.second); |
---|
512 | } |
---|
513 | |
---|
514 | //printf("peer_rank = %d, rank_map add = %p\n", peer_comm->ep_comm_ptr->size_rank_info[0].first, (*newintercomm)->ep_rank_map); |
---|
515 | |
---|
516 | |
---|
517 | if(peer_comm->ep_comm_ptr->size_rank_info[0].first == 5) |
---|
518 | { |
---|
519 | for(int i=0; i<ep_size; i++) |
---|
520 | { |
---|
521 | printf("rank_map->at(%d) = %d, %d\n", i, (*newintercomm)->ep_rank_map->at(i).first, (*newintercomm)->ep_rank_map->at(i).second); |
---|
522 | } |
---|
523 | } |
---|
524 | |
---|
525 | |
---|
526 | // clean up |
---|
527 | |
---|
528 | delete ranks_in_world_local; |
---|
529 | delete ranks_in_world_remote; |
---|
530 | |
---|
531 | if(is_involved) |
---|
532 | { |
---|
533 | delete local_quadruple_list; |
---|
534 | delete remote_quadruple_list; |
---|
535 | } |
---|
536 | |
---|
537 | delete leader_rank_in_world_local_gathered; |
---|
538 | delete new_rank_loc_local_gathered; |
---|
539 | |
---|
540 | |
---|
541 | } |
---|
542 | |
---|
543 | int MPI_Intercomm_create_kernel_bkp(MPI_Comm local_comm, int local_leader, MPI_Comm peer_comm, int remote_leader, int tag, MPI_Comm *newintercomm) |
---|
544 | { |
---|
545 | int ep_rank, ep_rank_loc, mpi_rank; |
---|
546 | int ep_size, num_ep, mpi_size; |
---|
547 | |
---|
548 | ep_rank = local_comm->ep_comm_ptr->size_rank_info[0].first; |
---|
549 | ep_rank_loc = local_comm->ep_comm_ptr->size_rank_info[1].first; |
---|
550 | mpi_rank = local_comm->ep_comm_ptr->size_rank_info[2].first; |
---|
551 | ep_size = local_comm->ep_comm_ptr->size_rank_info[0].second; |
---|
552 | num_ep = local_comm->ep_comm_ptr->size_rank_info[1].second; |
---|
553 | mpi_size = local_comm->ep_comm_ptr->size_rank_info[2].second; |
---|
554 | |
---|
555 | |
---|
556 | std::vector<int> rank_info[4]; //! 0->rank_in_world of local_comm, 1->rank_in_local_parent of local_comm |
---|
557 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
---|
558 | |
---|
559 | int rank_in_world; |
---|
560 | int rank_in_local_parent; |
---|
561 | |
---|
562 | int rank_in_peer_mpi[2]; |
---|
563 | |
---|
564 | int local_ep_size = ep_size; |
---|
565 | int remote_ep_size; |
---|
566 | |
---|
567 | |
---|
568 | ::MPI_Comm local_mpi_comm = to_mpi_comm(local_comm->mpi_comm); |
---|
569 | |
---|
570 | |
---|
571 | ::MPI_Comm_rank(to_mpi_comm(MPI_COMM_WORLD->mpi_comm), &rank_in_world); |
---|
572 | ::MPI_Comm_rank(local_mpi_comm, &rank_in_local_parent); |
---|
573 | |
---|
574 | |
---|
575 | bool is_proc_master = false; |
---|
576 | bool is_local_leader = false; |
---|
577 | bool is_final_master = false; |
---|
578 | |
---|
579 | |
---|
580 | if(ep_rank == local_leader) { is_proc_master = true; is_local_leader = true; is_final_master = true;} |
---|
581 | if(ep_rank_loc == 0 && mpi_rank != local_comm->ep_rank_map->at(local_leader).second) is_proc_master = true; |
---|
582 | |
---|
583 | |
---|
584 | int size_info[4]; //! used for choose size of rank_info 0-> mpi_size of local_comm, 1-> mpi_size of remote_comm |
---|
585 | |
---|
586 | int leader_info[4]; //! 0->world rank of local_leader, 1->world rank of remote leader |
---|
587 | |
---|
588 | |
---|
589 | std::vector<int> ep_info[2]; //! 0-> num_ep in local_comm, 1->num_ep in remote_comm |
---|
590 | |
---|
591 | std::vector<int> new_rank_info[4]; |
---|
592 | std::vector<int> new_ep_info[2]; |
---|
593 | |
---|
594 | std::vector<int> offset; |
---|
595 | |
---|
596 | if(is_proc_master) |
---|
597 | { |
---|
598 | |
---|
599 | size_info[0] = mpi_size; |
---|
600 | |
---|
601 | rank_info[0].resize(size_info[0]); |
---|
602 | rank_info[1].resize(size_info[0]); |
---|
603 | |
---|
604 | |
---|
605 | |
---|
606 | ep_info[0].resize(size_info[0]); |
---|
607 | |
---|
608 | vector<int> send_buf(6); |
---|
609 | vector<int> recv_buf(3*size_info[0]); |
---|
610 | |
---|
611 | send_buf[0] = rank_in_world; |
---|
612 | send_buf[1] = rank_in_local_parent; |
---|
613 | send_buf[2] = num_ep; |
---|
614 | |
---|
615 | ::MPI_Allgather(send_buf.data(), 3, to_mpi_type(MPI_INT), recv_buf.data(), 3, to_mpi_type(MPI_INT), local_mpi_comm); |
---|
616 | |
---|
617 | for(int i=0; i<size_info[0]; i++) |
---|
618 | { |
---|
619 | rank_info[0][i] = recv_buf[3*i]; |
---|
620 | rank_info[1][i] = recv_buf[3*i+1]; |
---|
621 | ep_info[0][i] = recv_buf[3*i+2]; |
---|
622 | } |
---|
623 | |
---|
624 | if(is_local_leader) |
---|
625 | { |
---|
626 | leader_info[0] = rank_in_world; |
---|
627 | leader_info[1] = remote_leader; |
---|
628 | |
---|
629 | ::MPI_Comm_rank(to_mpi_comm(peer_comm->mpi_comm), &rank_in_peer_mpi[0]); |
---|
630 | |
---|
631 | send_buf[0] = size_info[0]; |
---|
632 | send_buf[1] = local_ep_size; |
---|
633 | send_buf[2] = rank_in_peer_mpi[0]; |
---|
634 | |
---|
635 | |
---|
636 | |
---|
637 | MPI_Request requests[2]; |
---|
638 | MPI_Status statuses[2]; |
---|
639 | |
---|
640 | MPI_Isend(send_buf.data(), 3, MPI_INT, remote_leader, tag, peer_comm, &requests[0]); |
---|
641 | MPI_Irecv(recv_buf.data(), 3, MPI_INT, remote_leader, tag, peer_comm, &requests[1]); |
---|
642 | |
---|
643 | |
---|
644 | MPI_Waitall(2, requests, statuses); |
---|
645 | |
---|
646 | size_info[1] = recv_buf[0]; |
---|
647 | remote_ep_size = recv_buf[1]; |
---|
648 | rank_in_peer_mpi[1] = recv_buf[2]; |
---|
649 | |
---|
650 | } |
---|
651 | |
---|
652 | |
---|
653 | |
---|
654 | send_buf[0] = size_info[1]; |
---|
655 | send_buf[1] = leader_info[0]; |
---|
656 | send_buf[2] = leader_info[1]; |
---|
657 | send_buf[3] = rank_in_peer_mpi[0]; |
---|
658 | send_buf[4] = rank_in_peer_mpi[1]; |
---|
659 | |
---|
660 | ::MPI_Bcast(send_buf.data(), 5, to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, local_mpi_comm); |
---|
661 | |
---|
662 | size_info[1] = send_buf[0]; |
---|
663 | leader_info[0] = send_buf[1]; |
---|
664 | leader_info[1] = send_buf[2]; |
---|
665 | rank_in_peer_mpi[0] = send_buf[3]; |
---|
666 | rank_in_peer_mpi[1] = send_buf[4]; |
---|
667 | |
---|
668 | |
---|
669 | rank_info[2].resize(size_info[1]); |
---|
670 | rank_info[3].resize(size_info[1]); |
---|
671 | |
---|
672 | ep_info[1].resize(size_info[1]); |
---|
673 | |
---|
674 | send_buf.resize(3*size_info[0]); |
---|
675 | recv_buf.resize(3*size_info[1]); |
---|
676 | |
---|
677 | if(is_local_leader) |
---|
678 | { |
---|
679 | MPI_Request requests[2]; |
---|
680 | MPI_Status statuses[2]; |
---|
681 | |
---|
682 | std::copy ( rank_info[0].data(), rank_info[0].data() + size_info[0], send_buf.begin() ); |
---|
683 | std::copy ( rank_info[1].data(), rank_info[1].data() + size_info[0], send_buf.begin() + size_info[0] ); |
---|
684 | std::copy ( ep_info[0].data(), ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[0] ); |
---|
685 | |
---|
686 | MPI_Isend(send_buf.data(), 3*size_info[0], MPI_INT, remote_leader, tag+1, peer_comm, &requests[0]); |
---|
687 | MPI_Irecv(recv_buf.data(), 3*size_info[1], MPI_INT, remote_leader, tag+1, peer_comm, &requests[1]); |
---|
688 | |
---|
689 | MPI_Waitall(2, requests, statuses); |
---|
690 | } |
---|
691 | |
---|
692 | ::MPI_Bcast(recv_buf.data(), 3*size_info[1], to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, local_mpi_comm); |
---|
693 | |
---|
694 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[1], rank_info[2].begin() ); |
---|
695 | std::copy ( recv_buf.data() + size_info[1], recv_buf.data() + 2*size_info[1], rank_info[3].begin() ); |
---|
696 | std::copy ( recv_buf.data() + 2*size_info[1], recv_buf.data() + 3*size_info[1], ep_info[1].begin() ); |
---|
697 | |
---|
698 | |
---|
699 | offset.resize(size_info[0]); |
---|
700 | |
---|
701 | if(leader_info[0]<leader_info[1]) // erase all ranks doubled with remote_comm, except the local leader |
---|
702 | { |
---|
703 | |
---|
704 | bool found = false; |
---|
705 | int ep_local; |
---|
706 | int ep_remote; |
---|
707 | for(int i=0; i<size_info[0]; i++) |
---|
708 | { |
---|
709 | int target = rank_info[0][i]; |
---|
710 | found = false; |
---|
711 | for(int j=0; j<size_info[1]; j++) |
---|
712 | { |
---|
713 | if(target == rank_info[2][j]) |
---|
714 | { |
---|
715 | found = true; |
---|
716 | ep_local = ep_info[0][j]; |
---|
717 | ep_remote = ep_info[1][j]; |
---|
718 | break; |
---|
719 | } |
---|
720 | } |
---|
721 | if(found) |
---|
722 | { |
---|
723 | |
---|
724 | if(target == leader_info[0]) // the leader is doubled in remote |
---|
725 | { |
---|
726 | new_rank_info[0].push_back(target); |
---|
727 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
728 | |
---|
729 | new_ep_info[0].push_back(ep_local + ep_remote); |
---|
730 | offset[i] = 0; |
---|
731 | } |
---|
732 | else |
---|
733 | { |
---|
734 | offset[i] = ep_local; |
---|
735 | } |
---|
736 | } |
---|
737 | else |
---|
738 | { |
---|
739 | new_rank_info[0].push_back(target); |
---|
740 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
741 | |
---|
742 | new_ep_info[0].push_back(ep_info[0][i]); |
---|
743 | |
---|
744 | offset[i] = 0; |
---|
745 | } |
---|
746 | |
---|
747 | } |
---|
748 | } |
---|
749 | |
---|
750 | else // erase rank doubled with remote leader |
---|
751 | { |
---|
752 | |
---|
753 | bool found = false; |
---|
754 | int ep_local; |
---|
755 | int ep_remote; |
---|
756 | for(int i=0; i<size_info[0]; i++) |
---|
757 | { |
---|
758 | int target = rank_info[0][i]; |
---|
759 | found = false; |
---|
760 | for(int j=0; j<size_info[1]; j++) |
---|
761 | { |
---|
762 | |
---|
763 | if(target == rank_info[2][j]) |
---|
764 | { |
---|
765 | found = true; |
---|
766 | ep_local = ep_info[0][j]; |
---|
767 | ep_remote = ep_info[1][j]; |
---|
768 | break; |
---|
769 | } |
---|
770 | } |
---|
771 | if(found) |
---|
772 | { |
---|
773 | if(target != leader_info[1]) |
---|
774 | { |
---|
775 | new_rank_info[0].push_back(target); |
---|
776 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
777 | |
---|
778 | new_ep_info[0].push_back(ep_local + ep_remote); |
---|
779 | offset[i] = 0; |
---|
780 | } |
---|
781 | else // found remote leader |
---|
782 | { |
---|
783 | offset[i] = ep_remote; |
---|
784 | } |
---|
785 | } |
---|
786 | else |
---|
787 | { |
---|
788 | new_rank_info[0].push_back(target); |
---|
789 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
790 | |
---|
791 | new_ep_info[0].push_back(ep_info[0][i]); |
---|
792 | offset[i] = 0; |
---|
793 | } |
---|
794 | } |
---|
795 | } |
---|
796 | |
---|
797 | if(offset[mpi_rank] == 0) |
---|
798 | { |
---|
799 | is_final_master = true; |
---|
800 | } |
---|
801 | |
---|
802 | |
---|
803 | //! size_info[4]: 2->size of new_ep_info for local, 3->size of new_ep_info for remote |
---|
804 | |
---|
805 | if(is_local_leader) |
---|
806 | { |
---|
807 | size_info[2] = new_ep_info[0].size(); |
---|
808 | MPI_Request requests[2]; |
---|
809 | MPI_Status statuses[2]; |
---|
810 | MPI_Isend(&size_info[2], 1, MPI_INT, remote_leader, tag+2, peer_comm, &requests[0]); |
---|
811 | MPI_Irecv(&size_info[3], 1, MPI_INT, remote_leader, tag+2, peer_comm, &requests[1]); |
---|
812 | |
---|
813 | MPI_Waitall(2, requests, statuses); |
---|
814 | } |
---|
815 | |
---|
816 | ::MPI_Bcast(&size_info[2], 2, to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, local_mpi_comm); |
---|
817 | |
---|
818 | new_rank_info[2].resize(size_info[3]); |
---|
819 | new_rank_info[3].resize(size_info[3]); |
---|
820 | new_ep_info[1].resize(size_info[3]); |
---|
821 | |
---|
822 | send_buf.resize(size_info[2]); |
---|
823 | recv_buf.resize(size_info[3]); |
---|
824 | |
---|
825 | if(is_local_leader) |
---|
826 | { |
---|
827 | MPI_Request requests[2]; |
---|
828 | MPI_Status statuses[2]; |
---|
829 | |
---|
830 | std::copy ( new_rank_info[0].data(), new_rank_info[0].data() + size_info[2], send_buf.begin() ); |
---|
831 | std::copy ( new_rank_info[1].data(), new_rank_info[1].data() + size_info[2], send_buf.begin() + size_info[2] ); |
---|
832 | std::copy ( new_ep_info[0].data(), new_ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[2] ); |
---|
833 | |
---|
834 | MPI_Isend(send_buf.data(), 3*size_info[2], MPI_INT, remote_leader, tag+3, peer_comm, &requests[0]); |
---|
835 | MPI_Irecv(recv_buf.data(), 3*size_info[3], MPI_INT, remote_leader, tag+3, peer_comm, &requests[1]); |
---|
836 | |
---|
837 | MPI_Waitall(2, requests, statuses); |
---|
838 | } |
---|
839 | |
---|
840 | ::MPI_Bcast(recv_buf.data(), 3*size_info[3], to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, local_mpi_comm); |
---|
841 | |
---|
842 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[3], new_rank_info[2].begin() ); |
---|
843 | std::copy ( recv_buf.data() + size_info[3], recv_buf.data() + 2*size_info[3], new_rank_info[3].begin() ); |
---|
844 | std::copy ( recv_buf.data() + 2*size_info[3], recv_buf.data() + 3*size_info[3], new_ep_info[1].begin() ); |
---|
845 | |
---|
846 | } |
---|
847 | |
---|
848 | |
---|
849 | |
---|
850 | if(is_proc_master) |
---|
851 | { |
---|
852 | //! leader_info[4]: 2-> rank of local leader in new_group generated comm; |
---|
853 | // 3-> rank of remote leader in new_group generated comm; |
---|
854 | ::MPI_Group local_group; |
---|
855 | ::MPI_Group new_group; |
---|
856 | ::MPI_Comm *new_comm = new ::MPI_Comm; |
---|
857 | ::MPI_Comm *intercomm = new ::MPI_Comm; |
---|
858 | |
---|
859 | ::MPI_Comm_group(local_mpi_comm, &local_group); |
---|
860 | |
---|
861 | ::MPI_Group_incl(local_group, size_info[2], new_rank_info[1].data(), &new_group); |
---|
862 | |
---|
863 | ::MPI_Comm_create(local_mpi_comm, new_group, new_comm); |
---|
864 | |
---|
865 | |
---|
866 | |
---|
867 | if(is_local_leader) |
---|
868 | { |
---|
869 | ::MPI_Comm_rank(*new_comm, &leader_info[2]); |
---|
870 | } |
---|
871 | |
---|
872 | ::MPI_Bcast(&leader_info[2], 1, to_mpi_type(MPI_INT), local_comm->ep_rank_map->at(local_leader).second, local_mpi_comm); |
---|
873 | |
---|
874 | if(new_comm != static_cast< ::MPI_Comm*>(MPI_COMM_NULL->mpi_comm)) |
---|
875 | { |
---|
876 | |
---|
877 | ::MPI_Barrier(*new_comm); |
---|
878 | |
---|
879 | ::MPI_Intercomm_create(*new_comm, leader_info[2], to_mpi_comm(peer_comm->mpi_comm), rank_in_peer_mpi[1], tag, intercomm); |
---|
880 | |
---|
881 | int id; |
---|
882 | |
---|
883 | ::MPI_Comm_rank(*new_comm, &id); |
---|
884 | int my_num_ep = new_ep_info[0][id]; |
---|
885 | |
---|
886 | MPI_Comm *ep_intercomm; |
---|
887 | MPI_Info info; |
---|
888 | MPI_Comm_create_endpoints(new_comm, my_num_ep, info, ep_intercomm); |
---|
889 | |
---|
890 | |
---|
891 | for(int i= 0; i<my_num_ep; i++) |
---|
892 | { |
---|
893 | ep_intercomm[i]->is_intercomm = true; |
---|
894 | |
---|
895 | ep_intercomm[i]->ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
---|
896 | ep_intercomm[i]->ep_comm_ptr->intercomm->mpi_inter_comm = intercomm; |
---|
897 | ep_intercomm[i]->ep_comm_ptr->comm_label = leader_info[0]; |
---|
898 | } |
---|
899 | |
---|
900 | |
---|
901 | #pragma omp critical (write_to_tag_list) |
---|
902 | tag_list.push_back(make_pair( make_pair(tag, min(leader_info[0], leader_info[1])) , ep_intercomm)); |
---|
903 | //printf("tag_list size = %lu\n", tag_list.size()); |
---|
904 | } |
---|
905 | } |
---|
906 | |
---|
907 | vector<int> bcast_buf(8); |
---|
908 | if(is_local_leader) |
---|
909 | { |
---|
910 | std::copy(size_info, size_info+4, bcast_buf.begin()); |
---|
911 | std::copy(leader_info, leader_info+4, bcast_buf.begin()+4); |
---|
912 | } |
---|
913 | |
---|
914 | MPI_Bcast(bcast_buf.data(), 8, MPI_INT, local_leader, local_comm); |
---|
915 | |
---|
916 | if(!is_local_leader) |
---|
917 | { |
---|
918 | std::copy(bcast_buf.begin(), bcast_buf.begin()+4, size_info); |
---|
919 | std::copy(bcast_buf.begin()+4, bcast_buf.begin()+8, leader_info); |
---|
920 | } |
---|
921 | |
---|
922 | if(!is_local_leader) |
---|
923 | { |
---|
924 | new_rank_info[1].resize(size_info[2]); |
---|
925 | ep_info[1].resize(size_info[1]); |
---|
926 | offset.resize(size_info[0]); |
---|
927 | } |
---|
928 | |
---|
929 | bcast_buf.resize(size_info[2]+size_info[1]+size_info[0]+1); |
---|
930 | |
---|
931 | if(is_local_leader) |
---|
932 | { |
---|
933 | bcast_buf[0] = remote_ep_size; |
---|
934 | std::copy(new_rank_info[1].data(), new_rank_info[1].data()+size_info[2], bcast_buf.begin()+1); |
---|
935 | std::copy(ep_info[1].data(), ep_info[1].data()+size_info[1], bcast_buf.begin()+size_info[2]+1); |
---|
936 | std::copy(offset.data(), offset.data()+size_info[0], bcast_buf.begin()+size_info[2]+size_info[1]+1); |
---|
937 | } |
---|
938 | |
---|
939 | MPI_Bcast(bcast_buf.data(), size_info[2]+size_info[1]+size_info[0]+1, MPI_INT, local_leader, local_comm); |
---|
940 | |
---|
941 | if(!is_local_leader) |
---|
942 | { |
---|
943 | remote_ep_size = bcast_buf[0]; |
---|
944 | std::copy(bcast_buf.data()+1, bcast_buf.data()+1+size_info[2], new_rank_info[1].begin()); |
---|
945 | std::copy(bcast_buf.data()+1+size_info[2], bcast_buf.data()+1+size_info[2]+size_info[1], ep_info[1].begin()); |
---|
946 | 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()); |
---|
947 | } |
---|
948 | |
---|
949 | int my_position = offset[rank_in_local_parent]+ep_rank_loc; |
---|
950 | |
---|
951 | MPI_Barrier_local(local_comm); |
---|
952 | #pragma omp flush |
---|
953 | |
---|
954 | |
---|
955 | #pragma omp critical (read_from_tag_list) |
---|
956 | { |
---|
957 | bool found = false; |
---|
958 | while(!found) |
---|
959 | { |
---|
960 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
961 | { |
---|
962 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
963 | { |
---|
964 | *newintercomm = iter->second[my_position]; |
---|
965 | found = true; |
---|
966 | break; |
---|
967 | } |
---|
968 | } |
---|
969 | } |
---|
970 | } |
---|
971 | |
---|
972 | MPI_Barrier(local_comm); |
---|
973 | |
---|
974 | if(is_local_leader) |
---|
975 | { |
---|
976 | int local_flag = true; |
---|
977 | int remote_flag = false; |
---|
978 | MPI_Request mpi_requests[2]; |
---|
979 | MPI_Status mpi_statuses[2]; |
---|
980 | |
---|
981 | MPI_Isend(&local_flag, 1, MPI_INT, remote_leader, tag, peer_comm, &mpi_requests[0]); |
---|
982 | MPI_Irecv(&remote_flag, 1, MPI_INT, remote_leader, tag, peer_comm, &mpi_requests[1]); |
---|
983 | |
---|
984 | MPI_Waitall(2, mpi_requests, mpi_statuses); |
---|
985 | } |
---|
986 | |
---|
987 | |
---|
988 | MPI_Barrier(local_comm); |
---|
989 | |
---|
990 | if(is_proc_master) |
---|
991 | { |
---|
992 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
993 | { |
---|
994 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
995 | { |
---|
996 | tag_list.erase(iter); |
---|
997 | break; |
---|
998 | } |
---|
999 | } |
---|
1000 | } |
---|
1001 | |
---|
1002 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
---|
1003 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
---|
1004 | |
---|
1005 | intercomm_ep_rank = (*newintercomm)->ep_comm_ptr->size_rank_info[0].first; |
---|
1006 | intercomm_ep_rank_loc = (*newintercomm)->ep_comm_ptr->size_rank_info[1].first; |
---|
1007 | intercomm_mpi_rank = (*newintercomm)->ep_comm_ptr->size_rank_info[2].first; |
---|
1008 | intercomm_ep_size = (*newintercomm)->ep_comm_ptr->size_rank_info[0].second; |
---|
1009 | intercomm_num_ep = (*newintercomm)->ep_comm_ptr->size_rank_info[1].second; |
---|
1010 | intercomm_mpi_size = (*newintercomm)->ep_comm_ptr->size_rank_info[2].second; |
---|
1011 | |
---|
1012 | MPI_Bcast(&remote_ep_size, 1, MPI_INT, local_leader, local_comm); |
---|
1013 | |
---|
1014 | int my_rank_map_elem[2]; |
---|
1015 | |
---|
1016 | my_rank_map_elem[0] = intercomm_ep_rank; |
---|
1017 | my_rank_map_elem[1] = (*newintercomm)->ep_comm_ptr->comm_label; |
---|
1018 | |
---|
1019 | vector<pair<int, int> > local_rank_map_array; |
---|
1020 | vector<pair<int, int> > remote_rank_map_array; |
---|
1021 | |
---|
1022 | |
---|
1023 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
---|
1024 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->resize(local_ep_size); |
---|
1025 | |
---|
1026 | MPI_Allgather(my_rank_map_elem, 2, MPI_INT, |
---|
1027 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT, local_comm); |
---|
1028 | |
---|
1029 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
---|
1030 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->resize(remote_ep_size); |
---|
1031 | |
---|
1032 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[0] = local_comm->ep_comm_ptr->size_rank_info[0]; |
---|
1033 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[1] = local_comm->ep_comm_ptr->size_rank_info[1]; |
---|
1034 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[2] = local_comm->ep_comm_ptr->size_rank_info[2]; |
---|
1035 | |
---|
1036 | int local_intercomm_size = intercomm_ep_size; |
---|
1037 | int remote_intercomm_size; |
---|
1038 | |
---|
1039 | int new_bcast_root_0 = 0; |
---|
1040 | int new_bcast_root = 0; |
---|
1041 | |
---|
1042 | |
---|
1043 | if(is_local_leader) |
---|
1044 | { |
---|
1045 | MPI_Request requests[4]; |
---|
1046 | MPI_Status statuses[4]; |
---|
1047 | |
---|
1048 | MPI_Isend((*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_ep_size, MPI_INT, remote_leader, tag+4, peer_comm, &requests[0]); |
---|
1049 | MPI_Irecv((*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, MPI_INT, remote_leader, tag+4, peer_comm, &requests[1]); |
---|
1050 | |
---|
1051 | MPI_Isend(&local_intercomm_size, 1, MPI_INT, remote_leader, tag+5, peer_comm, &requests[2]); |
---|
1052 | MPI_Irecv(&remote_intercomm_size, 1, MPI_INT, remote_leader, tag+5, peer_comm, &requests[3]); |
---|
1053 | |
---|
1054 | MPI_Waitall(4, requests, statuses); |
---|
1055 | |
---|
1056 | new_bcast_root_0 = intercomm_ep_rank; |
---|
1057 | } |
---|
1058 | |
---|
1059 | MPI_Allreduce(&new_bcast_root_0, &new_bcast_root, 1, MPI_INT, MPI_SUM, *newintercomm); |
---|
1060 | |
---|
1061 | |
---|
1062 | MPI_Bcast((*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, MPI_INT, local_leader, local_comm); |
---|
1063 | MPI_Bcast(&remote_intercomm_size, 1, MPI_INT, new_bcast_root, *newintercomm); |
---|
1064 | |
---|
1065 | |
---|
1066 | //(*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map = new RANK_MAP; |
---|
1067 | //(*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->resize(remote_intercomm_size); |
---|
1068 | |
---|
1069 | |
---|
1070 | |
---|
1071 | |
---|
1072 | if(is_local_leader) |
---|
1073 | { |
---|
1074 | MPI_Request requests[2]; |
---|
1075 | MPI_Status statuses[2]; |
---|
1076 | |
---|
1077 | std::vector<std::pair<int, std::pair<int, int> > > map2vec((*newintercomm)->ep_rank_map->size()); |
---|
1078 | std::vector<std::pair<int, std::pair<int, int> > > vec2map((*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->size()); |
---|
1079 | |
---|
1080 | int ii=0; |
---|
1081 | for(std::map<int, std::pair<int, int> >::iterator it = (*newintercomm)->ep_rank_map->begin(); it != (*newintercomm)->ep_rank_map->end(); it++) |
---|
1082 | { |
---|
1083 | map2vec[ii++] = make_pair(it->first, make_pair(it->second.first, it->second.second)); |
---|
1084 | } |
---|
1085 | |
---|
1086 | |
---|
1087 | MPI_Isend(map2vec.data(), 3*local_intercomm_size, MPI_INT, remote_leader, tag+6, peer_comm, &requests[0]); |
---|
1088 | MPI_Irecv(vec2map.data(), 3*remote_intercomm_size, MPI_INT, remote_leader, tag+6, peer_comm, &requests[1]); |
---|
1089 | |
---|
1090 | |
---|
1091 | for(ii=0; ii<vec2map.size(); ii++) |
---|
1092 | { |
---|
1093 | //(*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(vec2map[ii].first) = make_pair(vec2map[ii].second.first, vec2map[ii].second.second); |
---|
1094 | } |
---|
1095 | |
---|
1096 | MPI_Waitall(2, requests, statuses); |
---|
1097 | } |
---|
1098 | |
---|
1099 | //MPI_Bcast((*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, MPI_INT, new_bcast_root, *newintercomm); |
---|
1100 | |
---|
1101 | (*newintercomm)->ep_comm_ptr->intercomm->local_comm = (local_comm->ep_comm_ptr->comm_list[ep_rank_loc]); |
---|
1102 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_tag = tag; |
---|
1103 | |
---|
1104 | /* |
---|
1105 | for(int i=0; i<local_ep_size; i++) |
---|
1106 | if(local_comm->ep_comm_ptr->comm_label == 0) printf("ep_rank (from EP) = %d, local_rank_map[%d] = (%d,%d)\n", intercomm_ep_rank, i, |
---|
1107 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->at(i).first, (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->at(i).second); |
---|
1108 | |
---|
1109 | for(int i=0; i<remote_ep_size; i++) |
---|
1110 | if(local_comm->ep_comm_ptr->comm_label == 0) printf("ep_rank (from EP) = %d, remote_rank_map[%d] = (%d,%d)\n", intercomm_ep_rank, i, |
---|
1111 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->at(i).first, (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->at(i).second); |
---|
1112 | |
---|
1113 | for(int i=0; i<remote_intercomm_size; i++) |
---|
1114 | if(local_comm->ep_comm_ptr->comm_label == 0) printf("ep_rank (from EP) = %d, intercomm_rank_map[%d] = (%d,%d)\n", intercomm_ep_rank, i, |
---|
1115 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(i).first, (*newintercomm)->ep_comm_ptr->intercomm->intercomm_rank_map->at(i).second); |
---|
1116 | */ |
---|
1117 | |
---|
1118 | // for(int i=0; i<(*newintercomm)->rank_map->size(); i++) |
---|
1119 | // if(local_comm->ep_comm_ptr->comm_label != 99) printf("ep_rank = %d, rank_map[%d] = (%d,%d)\n", intercomm_ep_rank, i, |
---|
1120 | // (*newintercomm)->rank_map->at(i).first, (*newintercomm)->rank_map->at(i).second); |
---|
1121 | |
---|
1122 | // MPI_Comm *test_comm = newintercomm->ep_comm_ptr->intercomm->local_comm; |
---|
1123 | // int test_rank; |
---|
1124 | // MPI_Comm_rank(*test_comm, &test_rank); |
---|
1125 | // printf("=================test_rank = %d\n", test_rank); |
---|
1126 | |
---|
1127 | |
---|
1128 | |
---|
1129 | return MPI_SUCCESS; |
---|
1130 | |
---|
1131 | } |
---|
1132 | |
---|
1133 | |
---|
1134 | |
---|
1135 | |
---|
1136 | int MPI_Intercomm_create_unique_leader(MPI_Comm local_comm, int local_leader, MPI_Comm peer_comm, int remote_leader, int tag, MPI_Comm *newintercomm) |
---|
1137 | { |
---|
1138 | //! mpi_size of local comm = 1 |
---|
1139 | //! same world rank of leaders |
---|
1140 | |
---|
1141 | int ep_rank, ep_rank_loc, mpi_rank; |
---|
1142 | int ep_size, num_ep, mpi_size; |
---|
1143 | |
---|
1144 | ep_rank = local_comm->ep_comm_ptr->size_rank_info[0].first; |
---|
1145 | ep_rank_loc = local_comm->ep_comm_ptr->size_rank_info[1].first; |
---|
1146 | mpi_rank = local_comm->ep_comm_ptr->size_rank_info[2].first; |
---|
1147 | ep_size = local_comm->ep_comm_ptr->size_rank_info[0].second; |
---|
1148 | num_ep = local_comm->ep_comm_ptr->size_rank_info[1].second; |
---|
1149 | mpi_size = local_comm->ep_comm_ptr->size_rank_info[2].second; |
---|
1150 | |
---|
1151 | |
---|
1152 | |
---|
1153 | std::vector<int> rank_info[4]; //! 0->rank_in_world of local_comm, 1->rank_in_local_parent of local_comm |
---|
1154 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
---|
1155 | |
---|
1156 | int rank_in_world; |
---|
1157 | |
---|
1158 | int rank_in_peer_mpi[2]; |
---|
1159 | |
---|
1160 | ::MPI_Comm_rank(to_mpi_comm(MPI_COMM_WORLD->mpi_comm), &rank_in_world); |
---|
1161 | |
---|
1162 | |
---|
1163 | int local_num_ep = num_ep; |
---|
1164 | int remote_num_ep; |
---|
1165 | int total_num_ep; |
---|
1166 | |
---|
1167 | int leader_rank_in_peer[2]; |
---|
1168 | |
---|
1169 | int my_position; |
---|
1170 | int tag_label[2]; |
---|
1171 | |
---|
1172 | vector<int> send_buf(4); |
---|
1173 | vector<int> recv_buf(4); |
---|
1174 | |
---|
1175 | |
---|
1176 | if(ep_rank == local_leader) |
---|
1177 | { |
---|
1178 | MPI_Status status; |
---|
1179 | |
---|
1180 | |
---|
1181 | |
---|
1182 | MPI_Comm_rank(peer_comm, &leader_rank_in_peer[0]); |
---|
1183 | |
---|
1184 | send_buf[0] = local_num_ep; |
---|
1185 | send_buf[1] = leader_rank_in_peer[0]; |
---|
1186 | |
---|
1187 | MPI_Request req_s, req_r; |
---|
1188 | |
---|
1189 | MPI_Isend(send_buf.data(), 2, MPI_INT, remote_leader, tag, peer_comm, &req_s); |
---|
1190 | MPI_Irecv(recv_buf.data(), 2, MPI_INT, remote_leader, tag, peer_comm, &req_r); |
---|
1191 | |
---|
1192 | |
---|
1193 | MPI_Wait(&req_s, &status); |
---|
1194 | MPI_Wait(&req_r, &status); |
---|
1195 | |
---|
1196 | recv_buf[2] = leader_rank_in_peer[0]; |
---|
1197 | |
---|
1198 | } |
---|
1199 | |
---|
1200 | MPI_Bcast(recv_buf.data(), 3, MPI_INT, local_leader, local_comm); |
---|
1201 | |
---|
1202 | remote_num_ep = recv_buf[0]; |
---|
1203 | leader_rank_in_peer[1] = recv_buf[1]; |
---|
1204 | leader_rank_in_peer[0] = recv_buf[2]; |
---|
1205 | |
---|
1206 | total_num_ep = local_num_ep + remote_num_ep; |
---|
1207 | |
---|
1208 | |
---|
1209 | if(leader_rank_in_peer[0] < leader_rank_in_peer[1]) |
---|
1210 | { |
---|
1211 | my_position = ep_rank_loc; |
---|
1212 | //! LEADER create EP |
---|
1213 | if(ep_rank == local_leader) |
---|
1214 | { |
---|
1215 | ::MPI_Comm *mpi_dup = new ::MPI_Comm; |
---|
1216 | |
---|
1217 | ::MPI_Comm_dup(to_mpi_comm(local_comm->mpi_comm), mpi_dup); |
---|
1218 | |
---|
1219 | MPI_Comm *ep_intercomm; |
---|
1220 | MPI_Info info; |
---|
1221 | MPI_Comm_create_endpoints(mpi_dup, total_num_ep, info, ep_intercomm); |
---|
1222 | |
---|
1223 | |
---|
1224 | for(int i=0; i<total_num_ep; i++) |
---|
1225 | { |
---|
1226 | ep_intercomm[i]->is_intercomm = true; |
---|
1227 | ep_intercomm[i]->ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
---|
1228 | ep_intercomm[i]->ep_comm_ptr->intercomm->mpi_inter_comm = 0; |
---|
1229 | |
---|
1230 | ep_intercomm[i]->ep_comm_ptr->comm_label = leader_rank_in_peer[0]; |
---|
1231 | } |
---|
1232 | |
---|
1233 | tag_label[0] = TAG++; |
---|
1234 | tag_label[1] = rank_in_world; |
---|
1235 | |
---|
1236 | #pragma omp critical (write_to_tag_list) |
---|
1237 | tag_list.push_back(make_pair( make_pair(tag_label[0], tag_label[1]) , ep_intercomm)); |
---|
1238 | |
---|
1239 | MPI_Request req_s; |
---|
1240 | MPI_Status sta_s; |
---|
1241 | MPI_Isend(tag_label, 2, MPI_INT, remote_leader, tag, peer_comm, &req_s); |
---|
1242 | |
---|
1243 | MPI_Wait(&req_s, &sta_s); |
---|
1244 | |
---|
1245 | } |
---|
1246 | } |
---|
1247 | else |
---|
1248 | { |
---|
1249 | //! Wait for EP creation |
---|
1250 | my_position = remote_num_ep + ep_rank_loc; |
---|
1251 | if(ep_rank == local_leader) |
---|
1252 | { |
---|
1253 | MPI_Status status; |
---|
1254 | MPI_Request req_r; |
---|
1255 | MPI_Irecv(tag_label, 2, MPI_INT, remote_leader, tag, peer_comm, &req_r); |
---|
1256 | MPI_Wait(&req_r, &status); |
---|
1257 | } |
---|
1258 | } |
---|
1259 | |
---|
1260 | MPI_Bcast(tag_label, 2, MPI_INT, local_leader, local_comm); |
---|
1261 | |
---|
1262 | |
---|
1263 | |
---|
1264 | |
---|
1265 | #pragma omp critical (read_from_tag_list) |
---|
1266 | { |
---|
1267 | bool found = false; |
---|
1268 | while(!found) |
---|
1269 | { |
---|
1270 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
1271 | { |
---|
1272 | if((*iter).first == make_pair(tag_label[0], tag_label[1])) |
---|
1273 | { |
---|
1274 | *newintercomm = iter->second[my_position]; |
---|
1275 | found = true; |
---|
1276 | // tag_list.erase(iter); |
---|
1277 | break; |
---|
1278 | } |
---|
1279 | } |
---|
1280 | } |
---|
1281 | } |
---|
1282 | |
---|
1283 | MPI_Barrier_local(local_comm); |
---|
1284 | |
---|
1285 | if(leader_rank_in_peer[0] < leader_rank_in_peer[1]) |
---|
1286 | { |
---|
1287 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
1288 | { |
---|
1289 | if((*iter).first == make_pair(tag_label[0], tag_label[1])) |
---|
1290 | { |
---|
1291 | tag_list.erase(iter); |
---|
1292 | break; |
---|
1293 | } |
---|
1294 | } |
---|
1295 | } |
---|
1296 | |
---|
1297 | |
---|
1298 | |
---|
1299 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
---|
1300 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
---|
1301 | |
---|
1302 | intercomm_ep_rank = (*newintercomm)->ep_comm_ptr->size_rank_info[0].first; |
---|
1303 | intercomm_ep_rank_loc = (*newintercomm)->ep_comm_ptr->size_rank_info[1].first; |
---|
1304 | intercomm_mpi_rank = (*newintercomm)->ep_comm_ptr->size_rank_info[2].first; |
---|
1305 | intercomm_ep_size = (*newintercomm)->ep_comm_ptr->size_rank_info[0].second; |
---|
1306 | intercomm_num_ep = (*newintercomm)->ep_comm_ptr->size_rank_info[1].second; |
---|
1307 | intercomm_mpi_size = (*newintercomm)->ep_comm_ptr->size_rank_info[2].second; |
---|
1308 | |
---|
1309 | |
---|
1310 | |
---|
1311 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
---|
1312 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
---|
1313 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->resize(local_num_ep); |
---|
1314 | (*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->resize(remote_num_ep); |
---|
1315 | |
---|
1316 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[0] = local_comm->ep_comm_ptr->size_rank_info[0]; |
---|
1317 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[1] = local_comm->ep_comm_ptr->size_rank_info[1]; |
---|
1318 | (*newintercomm)->ep_comm_ptr->intercomm->size_rank_info[2] = local_comm->ep_comm_ptr->size_rank_info[2]; |
---|
1319 | |
---|
1320 | |
---|
1321 | |
---|
1322 | int local_rank_map_ele[2]; |
---|
1323 | local_rank_map_ele[0] = intercomm_ep_rank; |
---|
1324 | local_rank_map_ele[1] = (*newintercomm)->ep_comm_ptr->comm_label; |
---|
1325 | |
---|
1326 | MPI_Allgather(local_rank_map_ele, 2, MPI_INT, |
---|
1327 | (*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT, local_comm); |
---|
1328 | |
---|
1329 | if(ep_rank == local_leader) |
---|
1330 | { |
---|
1331 | MPI_Status status; |
---|
1332 | MPI_Request req_s, req_r; |
---|
1333 | |
---|
1334 | MPI_Isend((*newintercomm)->ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_num_ep, MPI_INT, remote_leader, tag, peer_comm, &req_s); |
---|
1335 | MPI_Irecv((*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_num_ep, MPI_INT, remote_leader, tag, peer_comm, &req_r); |
---|
1336 | |
---|
1337 | |
---|
1338 | MPI_Wait(&req_s, &status); |
---|
1339 | MPI_Wait(&req_r, &status); |
---|
1340 | |
---|
1341 | } |
---|
1342 | |
---|
1343 | MPI_Bcast((*newintercomm)->ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_num_ep, MPI_INT, local_leader, local_comm); |
---|
1344 | (*newintercomm)->ep_comm_ptr->intercomm->local_comm = (local_comm->ep_comm_ptr->comm_list[ep_rank_loc]); |
---|
1345 | (*newintercomm)->ep_comm_ptr->intercomm->intercomm_tag = tag; |
---|
1346 | |
---|
1347 | |
---|
1348 | return MPI_SUCCESS; |
---|
1349 | } |
---|
1350 | |
---|
1351 | |
---|
1352 | } |
---|