[1134] | 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 | |
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| 5 | using namespace std; |
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| 6 | |
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| 7 | namespace ep_lib |
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| 8 | { |
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| 9 | |
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| 10 | #ifdef _openmpi |
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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 | |
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| 15 | int ep_rank, ep_rank_loc, mpi_rank; |
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| 16 | int ep_size, num_ep, mpi_size; |
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| 17 | |
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| 18 | ep_rank = local_comm.ep_comm_ptr->size_rank_info[0].first; |
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| 19 | ep_rank_loc = local_comm.ep_comm_ptr->size_rank_info[1].first; |
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| 20 | mpi_rank = local_comm.ep_comm_ptr->size_rank_info[2].first; |
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| 21 | ep_size = local_comm.ep_comm_ptr->size_rank_info[0].second; |
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| 22 | num_ep = local_comm.ep_comm_ptr->size_rank_info[1].second; |
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| 23 | mpi_size = local_comm.ep_comm_ptr->size_rank_info[2].second; |
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| 24 | |
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| 25 | |
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| 26 | 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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| 27 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
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| 28 | |
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| 29 | int rank_in_world; |
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| 30 | int rank_in_local_parent; |
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| 31 | |
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| 32 | int local_ep_size = ep_size; |
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| 33 | int remote_ep_size; |
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| 34 | |
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| 35 | ::MPI_Comm peer_comm = static_cast< ::MPI_Comm>(peer_comm_ptr); |
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| 36 | ::MPI_Comm local_mpi_comm = static_cast< ::MPI_Comm>(local_comm.mpi_comm); |
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| 37 | |
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| 38 | ::MPI_Comm_rank(peer_comm, &rank_in_world); |
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| 39 | |
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| 40 | ::MPI_Comm_rank(static_cast< ::MPI_Comm>(local_comm.mpi_comm), &rank_in_local_parent); |
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| 41 | |
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| 42 | bool is_proc_master = false; |
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| 43 | bool is_local_leader = false; |
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| 44 | bool is_final_master = false; |
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| 45 | |
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| 46 | |
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| 47 | if(ep_rank == local_leader) { is_proc_master = true; is_local_leader = true; is_final_master = true;} |
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| 48 | if(ep_rank_loc == 0 && mpi_rank != local_comm.rank_map->at(local_leader).second) is_proc_master = true; |
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| 49 | |
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| 50 | |
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| 51 | 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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| 52 | |
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| 53 | int leader_info[4]; //! 0->world rank of local_leader, 1->world rank of remote leader |
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| 54 | |
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| 55 | |
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| 56 | std::vector<int> ep_info[2]; //! 0-> num_ep in local_comm, 1->num_ep in remote_comm |
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| 57 | |
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| 58 | std::vector<int> new_rank_info[4]; |
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| 59 | std::vector<int> new_ep_info[2]; |
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| 60 | |
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| 61 | std::vector<int> offset; |
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| 62 | |
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| 63 | if(is_proc_master) |
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| 64 | { |
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| 65 | |
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| 66 | size_info[0] = mpi_size; |
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| 67 | |
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| 68 | rank_info[0].resize(size_info[0]); |
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| 69 | rank_info[1].resize(size_info[0]); |
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| 70 | |
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| 71 | |
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| 72 | |
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| 73 | ep_info[0].resize(size_info[0]); |
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| 74 | |
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| 75 | vector<int> send_buf(6); |
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| 76 | vector<int> recv_buf(3*size_info[0]); |
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| 77 | |
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| 78 | send_buf[0] = rank_in_world; |
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| 79 | send_buf[1] = rank_in_local_parent; |
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| 80 | send_buf[2] = num_ep; |
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| 81 | |
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[1287] | 82 | ::MPI_Allgather(send_buf.data(), 3, static_cast< ::MPI_Datatype> (MPI_INT), recv_buf.data(), 3, static_cast< ::MPI_Datatype> (MPI_INT), local_mpi_comm); |
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[1134] | 83 | |
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| 84 | for(int i=0; i<size_info[0]; i++) |
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| 85 | { |
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| 86 | rank_info[0][i] = recv_buf[3*i]; |
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| 87 | rank_info[1][i] = recv_buf[3*i+1]; |
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| 88 | ep_info[0][i] = recv_buf[3*i+2]; |
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| 89 | } |
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| 90 | |
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| 91 | if(is_local_leader) |
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| 92 | { |
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| 93 | leader_info[0] = rank_in_world; |
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| 94 | leader_info[1] = mpi_remote_leader; |
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| 95 | |
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| 96 | ::MPI_Status mpi_status; |
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| 97 | |
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| 98 | send_buf[0] = size_info[0]; |
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| 99 | send_buf[1] = local_ep_size; |
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| 100 | |
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[1287] | 101 | ::MPI_Send(send_buf.data(), 2, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
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[1134] | 102 | |
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[1287] | 103 | ::MPI_Recv(recv_buf.data(), 2, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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[1134] | 104 | |
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| 105 | recv_buf[2] = rank_in_world; |
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| 106 | recv_buf[3] = mpi_remote_leader; |
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| 107 | |
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| 108 | } |
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| 109 | |
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[1287] | 110 | ::MPI_Bcast(recv_buf.data(), 4, static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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[1134] | 111 | |
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| 112 | size_info[1] = recv_buf[0]; |
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| 113 | remote_ep_size = recv_buf[1]; |
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| 114 | leader_info[0] = recv_buf[2]; |
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| 115 | leader_info[1] = recv_buf[3]; |
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| 116 | |
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| 117 | rank_info[2].resize(size_info[1]); |
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| 118 | rank_info[3].resize(size_info[1]); |
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| 119 | |
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| 120 | ep_info[1].resize(size_info[1]); |
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| 121 | |
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| 122 | send_buf.resize(3*size_info[0]); |
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| 123 | recv_buf.resize(3*size_info[1]); |
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| 124 | |
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| 125 | if(is_local_leader) |
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| 126 | { |
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| 127 | ::MPI_Status mpi_status; |
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| 128 | |
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| 129 | |
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| 130 | std::copy ( rank_info[0].data(), rank_info[0].data() + size_info[0], send_buf.begin() ); |
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| 131 | std::copy ( rank_info[1].data(), rank_info[1].data() + size_info[0], send_buf.begin() + size_info[0] ); |
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| 132 | std::copy ( ep_info[0].data(), ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[0] ); |
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| 133 | |
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[1287] | 134 | ::MPI_Send(send_buf.data(), 3*size_info[0], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
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[1134] | 135 | |
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[1287] | 136 | ::MPI_Recv(recv_buf.data(), 3*size_info[1], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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[1134] | 137 | |
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| 138 | } |
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| 139 | |
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[1287] | 140 | ::MPI_Bcast(recv_buf.data(), 3*size_info[1], static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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[1134] | 141 | |
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| 142 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[1], rank_info[2].begin() ); |
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| 143 | std::copy ( recv_buf.data() + size_info[1], recv_buf.data() + 2*size_info[1], rank_info[3].begin() ); |
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| 144 | std::copy ( recv_buf.data() + 2*size_info[1], recv_buf.data() + 3*size_info[1], ep_info[1].begin() ); |
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| 145 | |
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| 146 | offset.resize(size_info[0]); |
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| 147 | |
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| 148 | if(leader_info[0]<leader_info[1]) // erase all ranks doubled with remote_comm, except the local leader |
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| 149 | { |
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| 150 | |
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| 151 | bool found = false; |
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| 152 | int ep_tmp; |
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| 153 | int ep_local; |
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| 154 | int ep_remote; |
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| 155 | for(int i=0; i<size_info[0]; i++) |
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| 156 | { |
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| 157 | int target = rank_info[0][i]; |
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| 158 | found = false; |
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| 159 | for(int j=0; j<size_info[1]; j++) |
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| 160 | { |
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| 161 | if(target == rank_info[2][j]) |
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| 162 | { |
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| 163 | found = true; |
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| 164 | ep_tmp = ep_info[1][j]; |
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| 165 | ep_local = ep_info[0][j]; |
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| 166 | ep_remote = ep_info[1][j]; |
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| 167 | break; |
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| 168 | } |
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| 169 | } |
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| 170 | if(found) |
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| 171 | { |
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| 172 | |
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| 173 | if(target == leader_info[0]) // the leader is doubled in remote |
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| 174 | { |
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| 175 | new_rank_info[0].push_back(target); |
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| 176 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 177 | |
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| 178 | new_ep_info[0].push_back(ep_local + ep_remote); |
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| 179 | offset[i] = 0; |
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| 180 | } |
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| 181 | else |
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| 182 | { |
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| 183 | offset[i] = ep_local; |
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| 184 | } |
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| 185 | } |
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| 186 | else |
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| 187 | { |
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| 188 | new_rank_info[0].push_back(target); |
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| 189 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 190 | |
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| 191 | new_ep_info[0].push_back(ep_info[0][i]); |
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| 192 | |
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| 193 | offset[i] = 0; |
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| 194 | } |
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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 | else // erase rank doubled with remote leader |
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| 200 | { |
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| 201 | |
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| 202 | bool found = false; |
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| 203 | int ep_tmp; |
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| 204 | int ep_local; |
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| 205 | int ep_remote; |
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| 206 | for(int i=0; i<size_info[0]; i++) |
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| 207 | { |
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| 208 | int target = rank_info[0][i]; |
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| 209 | found = false; |
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| 210 | for(int j=0; j<size_info[1]; j++) |
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| 211 | { |
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| 212 | |
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| 213 | if(target == rank_info[2][j]) |
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| 214 | { |
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| 215 | found = true; |
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| 216 | ep_tmp = ep_info[1][j]; |
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| 217 | ep_local = ep_info[0][j]; |
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| 218 | ep_remote = ep_info[1][j]; |
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| 219 | break; |
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| 220 | } |
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| 221 | } |
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| 222 | if(found) |
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| 223 | { |
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| 224 | if(target != leader_info[1]) |
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| 225 | { |
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| 226 | new_rank_info[0].push_back(target); |
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| 227 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 228 | |
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| 229 | new_ep_info[0].push_back(ep_local + ep_remote); |
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| 230 | offset[i] = 0; |
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| 231 | } |
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| 232 | else // found remote leader |
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| 233 | { |
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| 234 | offset[i] = ep_remote; |
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| 235 | } |
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| 236 | } |
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| 237 | else |
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| 238 | { |
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| 239 | new_rank_info[0].push_back(target); |
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| 240 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 241 | |
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| 242 | new_ep_info[0].push_back(ep_info[0][i]); |
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| 243 | offset[i] = 0; |
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| 244 | } |
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| 245 | } |
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| 246 | } |
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| 247 | |
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| 248 | if(offset[mpi_rank] == 0) |
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| 249 | { |
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| 250 | is_final_master = true; |
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| 251 | } |
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| 252 | |
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| 253 | |
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| 254 | // size_info[4]: 2->size of new_ep_info for local, 3->size of new_ep_info for remote |
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| 255 | |
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| 256 | if(is_local_leader) |
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| 257 | { |
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| 258 | size_info[2] = new_ep_info[0].size(); |
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| 259 | ::MPI_Status mpi_status; |
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| 260 | |
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[1287] | 261 | ::MPI_Send(&size_info[2], 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
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[1134] | 262 | |
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[1287] | 263 | ::MPI_Recv(&size_info[3], 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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[1134] | 264 | } |
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| 265 | |
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[1287] | 266 | ::MPI_Bcast(&size_info[2], 2, static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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[1134] | 267 | |
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| 268 | new_rank_info[2].resize(size_info[3]); |
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| 269 | new_rank_info[3].resize(size_info[3]); |
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| 270 | new_ep_info[1].resize(size_info[3]); |
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| 271 | |
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| 272 | send_buf.resize(size_info[2]); |
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| 273 | recv_buf.resize(size_info[3]); |
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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_Status mpi_status; |
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| 278 | |
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| 279 | std::copy ( new_rank_info[0].data(), new_rank_info[0].data() + size_info[2], send_buf.begin() ); |
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| 280 | 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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| 281 | 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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| 282 | |
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[1287] | 283 | ::MPI_Send(send_buf.data(), 3*size_info[2], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
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| 284 | ::MPI_Recv(recv_buf.data(), 3*size_info[3], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
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[1134] | 285 | |
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| 286 | } |
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| 287 | |
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[1287] | 288 | ::MPI_Bcast(recv_buf.data(), 3*size_info[3], static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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[1134] | 289 | |
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| 290 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[3], new_rank_info[2].begin() ); |
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| 291 | std::copy ( recv_buf.data() + size_info[3], recv_buf.data() + 2*size_info[3], new_rank_info[3].begin() ); |
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| 292 | 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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| 293 | |
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| 294 | } |
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| 295 | |
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| 296 | |
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| 297 | |
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| 298 | if(is_proc_master) |
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| 299 | { |
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| 300 | // leader_info[4]: 2-> rank of local leader in new_group generated comm; |
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| 301 | // 3-> rank of remote leader in new_group generated comm; |
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| 302 | ::MPI_Group local_group; |
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| 303 | ::MPI_Group new_group; |
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| 304 | ::MPI_Comm new_comm; |
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| 305 | ::MPI_Comm intercomm; |
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| 306 | |
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| 307 | ::MPI_Comm_group(local_mpi_comm, &local_group); |
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| 308 | |
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| 309 | ::MPI_Group_incl(local_group, size_info[2], new_rank_info[1].data(), &new_group); |
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| 310 | |
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| 311 | ::MPI_Comm_create(local_mpi_comm, new_group, &new_comm); |
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| 312 | |
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| 313 | |
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| 314 | |
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| 315 | if(is_local_leader) |
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| 316 | { |
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| 317 | ::MPI_Comm_rank(new_comm, &leader_info[2]); |
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| 318 | } |
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| 319 | |
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[1287] | 320 | ::MPI_Bcast(&leader_info[2], 1, static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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[1134] | 321 | |
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[1287] | 322 | if(new_comm != static_cast< ::MPI_Comm>(MPI_COMM_NULL.mpi_comm)) |
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[1134] | 323 | { |
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| 324 | ::MPI_Barrier(new_comm); |
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| 325 | |
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| 326 | ::MPI_Intercomm_create(new_comm, leader_info[2], peer_comm, leader_info[1], tag, &intercomm); |
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| 327 | |
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| 328 | int id; |
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| 329 | MPI_Comm_rank(new_comm, &id); |
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| 330 | int my_num_ep = new_ep_info[0][id]; |
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| 331 | |
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| 332 | MPI_Comm *ep_intercomm; |
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| 333 | MPI_Info info; |
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| 334 | MPI_Comm_create_endpoints(new_comm, my_num_ep, info, ep_intercomm); |
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| 335 | |
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| 336 | |
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| 337 | |
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| 338 | for(int i= 0; i<my_num_ep; i++) |
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| 339 | { |
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| 340 | ep_intercomm[i].is_intercomm = true; |
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| 341 | |
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| 342 | ep_intercomm[i].ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
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| 343 | ep_intercomm[i].ep_comm_ptr->intercomm->mpi_inter_comm = intercomm; |
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| 344 | ep_intercomm[i].ep_comm_ptr->comm_label = leader_info[0]; |
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| 345 | } |
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| 346 | |
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| 347 | #pragma omp critical (write_to_tag_list) |
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| 348 | tag_list.push_back(make_pair( make_pair(tag, min(leader_info[0], leader_info[1])) , ep_intercomm)); |
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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 | |
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| 354 | |
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| 355 | MPI_Barrier_local(local_comm); |
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| 356 | |
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| 357 | vector<int> bcast_buf(8); |
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| 358 | if(is_local_leader) |
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| 359 | { |
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| 360 | std::copy(size_info, size_info+4, bcast_buf.begin()); |
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| 361 | std::copy(leader_info, leader_info+4, bcast_buf.begin()+4); |
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| 362 | } |
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| 363 | |
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[1287] | 364 | MPI_Bcast(bcast_buf.data(), 8, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
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[1134] | 365 | |
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| 366 | if(!is_local_leader) |
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| 367 | { |
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| 368 | std::copy(bcast_buf.begin(), bcast_buf.begin()+4, size_info); |
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| 369 | std::copy(bcast_buf.begin()+4, bcast_buf.begin()+8, leader_info); |
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| 370 | } |
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| 371 | |
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| 372 | if(!is_local_leader) |
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| 373 | { |
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| 374 | new_rank_info[1].resize(size_info[2]); |
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| 375 | ep_info[1].resize(size_info[1]); |
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| 376 | offset.resize(size_info[0]); |
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| 377 | } |
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| 378 | |
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| 379 | bcast_buf.resize(size_info[2]+size_info[1]+size_info[0]+1); |
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| 380 | |
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| 381 | if(is_local_leader) |
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| 382 | { |
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| 383 | bcast_buf[0] = remote_ep_size; |
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| 384 | std::copy(new_rank_info[1].data(), new_rank_info[1].data()+size_info[2], bcast_buf.begin()+1); |
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| 385 | std::copy(ep_info[1].data(), ep_info[1].data()+size_info[1], bcast_buf.begin()+size_info[2]+1); |
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| 386 | std::copy(offset.data(), offset.data()+size_info[0], bcast_buf.begin()+size_info[2]+size_info[1]+1); |
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| 387 | } |
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| 388 | |
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[1287] | 389 | MPI_Bcast(bcast_buf.data(), size_info[2]+size_info[1]+size_info[0]+1, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
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[1134] | 390 | |
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| 391 | if(!is_local_leader) |
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| 392 | { |
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| 393 | remote_ep_size = bcast_buf[0]; |
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| 394 | std::copy(bcast_buf.data()+1, bcast_buf.data()+1+size_info[2], new_rank_info[1].begin()); |
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| 395 | 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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| 396 | 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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| 397 | } |
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| 398 | |
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| 399 | |
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| 400 | int my_position = offset[rank_in_local_parent]+ep_rank_loc; |
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| 401 | |
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| 402 | |
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| 403 | MPI_Barrier_local(local_comm); |
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| 404 | #pragma omp flush |
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| 405 | |
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| 406 | |
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| 407 | #pragma omp critical (read_from_tag_list) |
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| 408 | { |
---|
| 409 | bool found = false; |
---|
| 410 | while(!found) |
---|
| 411 | { |
---|
| 412 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
| 413 | { |
---|
| 414 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
| 415 | { |
---|
| 416 | *newintercomm = iter->second[my_position]; |
---|
| 417 | |
---|
| 418 | found = true; |
---|
| 419 | //tag_list.erase(iter); |
---|
| 420 | break; |
---|
| 421 | } |
---|
| 422 | } |
---|
| 423 | } |
---|
| 424 | } |
---|
| 425 | |
---|
[1287] | 426 | MPI_Barrier(local_comm); |
---|
[1134] | 427 | |
---|
[1287] | 428 | if(is_local_leader) |
---|
| 429 | { |
---|
| 430 | int local_flag = true; |
---|
| 431 | int remote_flag = false; |
---|
| 432 | ::MPI_Status mpi_status; |
---|
| 433 | |
---|
| 434 | ::MPI_Send(&local_flag, 1, static_cast< ::MPI_Datatype>(MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
| 435 | |
---|
| 436 | ::MPI_Recv(&remote_flag, 1, static_cast< ::MPI_Datatype>(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
---|
| 437 | } |
---|
| 438 | |
---|
| 439 | MPI_Barrier(local_comm); |
---|
| 440 | |
---|
[1134] | 441 | if(is_proc_master) |
---|
| 442 | { |
---|
| 443 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
| 444 | { |
---|
| 445 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
| 446 | { |
---|
| 447 | tag_list.erase(iter); |
---|
| 448 | break; |
---|
| 449 | } |
---|
| 450 | } |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | |
---|
| 454 | |
---|
| 455 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
---|
| 456 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
---|
| 457 | |
---|
| 458 | intercomm_ep_rank = newintercomm->ep_comm_ptr->size_rank_info[0].first; |
---|
| 459 | intercomm_ep_rank_loc = newintercomm->ep_comm_ptr->size_rank_info[1].first; |
---|
| 460 | intercomm_mpi_rank = newintercomm->ep_comm_ptr->size_rank_info[2].first; |
---|
| 461 | intercomm_ep_size = newintercomm->ep_comm_ptr->size_rank_info[0].second; |
---|
| 462 | intercomm_num_ep = newintercomm->ep_comm_ptr->size_rank_info[1].second; |
---|
| 463 | intercomm_mpi_size = newintercomm->ep_comm_ptr->size_rank_info[2].second; |
---|
| 464 | |
---|
[1287] | 465 | MPI_Bcast(&remote_ep_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
---|
[1134] | 466 | |
---|
| 467 | int my_rank_map_elem[2]; |
---|
| 468 | |
---|
| 469 | |
---|
| 470 | my_rank_map_elem[0] = intercomm_ep_rank; |
---|
| 471 | |
---|
| 472 | my_rank_map_elem[1] = (*newintercomm).ep_comm_ptr->comm_label; |
---|
| 473 | |
---|
| 474 | vector<pair<int, int> > local_rank_map_array; |
---|
| 475 | vector<pair<int, int> > remote_rank_map_array; |
---|
| 476 | |
---|
| 477 | |
---|
| 478 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
---|
| 479 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->resize(local_ep_size); |
---|
| 480 | |
---|
[1287] | 481 | MPI_Allgather2(my_rank_map_elem, 2, MPI_INT, (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT, local_comm); |
---|
[1134] | 482 | |
---|
| 483 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
---|
| 484 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->resize(remote_ep_size); |
---|
| 485 | |
---|
| 486 | int local_intercomm_size = intercomm_ep_size; |
---|
| 487 | int remote_intercomm_size; |
---|
| 488 | |
---|
| 489 | |
---|
| 490 | |
---|
| 491 | |
---|
| 492 | if(is_local_leader) |
---|
| 493 | { |
---|
| 494 | ::MPI_Status status; |
---|
| 495 | |
---|
[1287] | 496 | ::MPI_Send((*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_ep_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 497 | |
---|
[1287] | 498 | ::MPI_Recv((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
---|
[1134] | 499 | |
---|
[1287] | 500 | ::MPI_Send(&local_intercomm_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 501 | |
---|
[1287] | 502 | ::MPI_Recv(&remote_intercomm_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
---|
[1134] | 503 | } |
---|
| 504 | |
---|
[1287] | 505 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
---|
| 506 | MPI_Bcast(&remote_intercomm_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), 0, *newintercomm); |
---|
[1134] | 507 | |
---|
| 508 | |
---|
| 509 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map = new RANK_MAP; |
---|
| 510 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->resize(remote_intercomm_size); |
---|
| 511 | |
---|
| 512 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[0] = local_comm.ep_comm_ptr->size_rank_info[0]; |
---|
| 513 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[1] = local_comm.ep_comm_ptr->size_rank_info[1]; |
---|
| 514 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[2] = local_comm.ep_comm_ptr->size_rank_info[2]; |
---|
| 515 | |
---|
| 516 | |
---|
| 517 | if(is_local_leader) |
---|
| 518 | { |
---|
| 519 | ::MPI_Status status; |
---|
| 520 | |
---|
[1287] | 521 | ::MPI_Send((*newintercomm).rank_map->data(), 2*local_intercomm_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 522 | |
---|
[1287] | 523 | ::MPI_Recv((*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
---|
[1134] | 524 | } |
---|
| 525 | |
---|
[1287] | 526 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, static_cast< ::MPI_Datatype> (MPI_INT), 0, *newintercomm); |
---|
[1134] | 527 | |
---|
| 528 | (*newintercomm).ep_comm_ptr->intercomm->local_comm = &(local_comm.ep_comm_ptr->comm_list[ep_rank_loc]); |
---|
| 529 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_tag = local_comm.ep_comm_ptr->comm_label; |
---|
| 530 | |
---|
| 531 | |
---|
| 532 | return MPI_SUCCESS; |
---|
| 533 | |
---|
| 534 | } |
---|
| 535 | |
---|
| 536 | |
---|
| 537 | |
---|
| 538 | #elif _intelmpi |
---|
| 539 | int MPI_Intercomm_create_from_world(MPI_Comm local_comm, int local_leader, int peer_comm_ptr, int mpi_remote_leader, int tag, MPI_Comm *newintercomm) |
---|
| 540 | { |
---|
| 541 | int ep_rank, ep_rank_loc, mpi_rank; |
---|
| 542 | int ep_size, num_ep, mpi_size; |
---|
| 543 | |
---|
| 544 | ep_rank = local_comm.ep_comm_ptr->size_rank_info[0].first; |
---|
| 545 | ep_rank_loc = local_comm.ep_comm_ptr->size_rank_info[1].first; |
---|
| 546 | mpi_rank = local_comm.ep_comm_ptr->size_rank_info[2].first; |
---|
| 547 | ep_size = local_comm.ep_comm_ptr->size_rank_info[0].second; |
---|
| 548 | num_ep = local_comm.ep_comm_ptr->size_rank_info[1].second; |
---|
| 549 | mpi_size = local_comm.ep_comm_ptr->size_rank_info[2].second; |
---|
| 550 | |
---|
| 551 | std::vector<int> rank_info[4]; //! 0->rank_in_world of local_comm, 1->rank_in_local_parent of local_comm |
---|
| 552 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
---|
| 553 | |
---|
| 554 | int rank_in_world; |
---|
| 555 | int rank_in_local_parent; |
---|
| 556 | |
---|
| 557 | int local_ep_size = ep_size; |
---|
| 558 | int remote_ep_size; |
---|
| 559 | |
---|
| 560 | ::MPI_Comm peer_comm = static_cast< ::MPI_Comm>(peer_comm_ptr); |
---|
| 561 | ::MPI_Comm local_mpi_comm = static_cast< ::MPI_Comm>(local_comm.mpi_comm); |
---|
| 562 | |
---|
| 563 | ::MPI_Comm_rank(peer_comm, &rank_in_world); |
---|
| 564 | |
---|
| 565 | ::MPI_Comm_rank(static_cast< ::MPI_Comm>(local_comm.mpi_comm), &rank_in_local_parent); |
---|
| 566 | |
---|
| 567 | bool is_proc_master = false; |
---|
| 568 | bool is_local_leader = false; |
---|
| 569 | bool is_final_master = false; |
---|
| 570 | |
---|
| 571 | |
---|
| 572 | if(ep_rank == local_leader) { is_proc_master = true; is_local_leader = true; is_final_master = true;} |
---|
| 573 | if(ep_rank_loc == 0 && mpi_rank != local_comm.rank_map->at(local_leader).second) is_proc_master = true; |
---|
| 574 | |
---|
| 575 | |
---|
| 576 | int size_info[4]; //! used for choose size of rank_info 0-> mpi_size of local_comm, 1-> mpi_size of remote_comm |
---|
| 577 | |
---|
| 578 | int leader_info[4]; //! 0->world rank of local_leader, 1->world rank of remote leader |
---|
| 579 | |
---|
| 580 | |
---|
| 581 | std::vector<int> ep_info[2]; //! 0-> num_ep in local_comm, 1->num_ep in remote_comm |
---|
| 582 | |
---|
| 583 | std::vector<int> new_rank_info[4]; |
---|
| 584 | std::vector<int> new_ep_info[2]; |
---|
| 585 | |
---|
| 586 | std::vector<int> offset; |
---|
| 587 | |
---|
| 588 | if(is_proc_master) |
---|
| 589 | { |
---|
| 590 | |
---|
| 591 | size_info[0] = mpi_size; |
---|
| 592 | |
---|
| 593 | rank_info[0].resize(size_info[0]); |
---|
| 594 | rank_info[1].resize(size_info[0]); |
---|
| 595 | |
---|
| 596 | ep_info[0].resize(size_info[0]); |
---|
| 597 | |
---|
| 598 | vector<int> send_buf(6); |
---|
| 599 | vector<int> recv_buf(3*size_info[0]); |
---|
| 600 | |
---|
| 601 | send_buf[0] = rank_in_world; |
---|
| 602 | send_buf[1] = rank_in_local_parent; |
---|
| 603 | send_buf[2] = num_ep; |
---|
| 604 | |
---|
[1287] | 605 | ::MPI_Allgather(send_buf.data(), 3, static_cast< ::MPI_Datatype> (MPI_INT), recv_buf.data(), 3, static_cast< ::MPI_Datatype> (MPI_INT), local_mpi_comm); |
---|
[1134] | 606 | |
---|
| 607 | for(int i=0; i<size_info[0]; i++) |
---|
| 608 | { |
---|
| 609 | rank_info[0][i] = recv_buf[3*i]; |
---|
| 610 | rank_info[1][i] = recv_buf[3*i+1]; |
---|
| 611 | ep_info[0][i] = recv_buf[3*i+2]; |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | |
---|
| 615 | if(is_local_leader) |
---|
| 616 | { |
---|
| 617 | leader_info[0] = rank_in_world; |
---|
| 618 | leader_info[1] = mpi_remote_leader; |
---|
| 619 | |
---|
| 620 | ::MPI_Status mpi_status; |
---|
| 621 | |
---|
| 622 | send_buf[0] = size_info[0]; |
---|
| 623 | send_buf[1] = local_ep_size; |
---|
| 624 | |
---|
[1287] | 625 | ::MPI_Send(send_buf.data(), 2, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 626 | |
---|
[1287] | 627 | ::MPI_Recv(recv_buf.data(), 2, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
---|
[1134] | 628 | |
---|
| 629 | recv_buf[2] = rank_in_world; |
---|
| 630 | recv_buf[3] = mpi_remote_leader; |
---|
| 631 | |
---|
| 632 | } |
---|
| 633 | |
---|
[1287] | 634 | ::MPI_Bcast(recv_buf.data(), 4, static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
---|
[1134] | 635 | |
---|
| 636 | size_info[1] = recv_buf[0]; |
---|
| 637 | remote_ep_size = recv_buf[1]; |
---|
| 638 | leader_info[0] = recv_buf[2]; |
---|
| 639 | leader_info[1] = recv_buf[3]; |
---|
| 640 | |
---|
| 641 | rank_info[2].resize(size_info[1]); |
---|
| 642 | rank_info[3].resize(size_info[1]); |
---|
| 643 | |
---|
| 644 | ep_info[1].resize(size_info[1]); |
---|
| 645 | |
---|
| 646 | send_buf.resize(3*size_info[0]); |
---|
| 647 | recv_buf.resize(3*size_info[1]); |
---|
| 648 | |
---|
| 649 | if(is_local_leader) |
---|
| 650 | { |
---|
| 651 | ::MPI_Status mpi_status; |
---|
| 652 | |
---|
| 653 | |
---|
| 654 | std::copy ( rank_info[0].data(), rank_info[0].data() + size_info[0], send_buf.begin() ); |
---|
| 655 | std::copy ( rank_info[1].data(), rank_info[1].data() + size_info[0], send_buf.begin() + size_info[0] ); |
---|
| 656 | std::copy ( ep_info[0].data(), ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[0] ); |
---|
| 657 | |
---|
[1287] | 658 | ::MPI_Send(send_buf.data(), 3*size_info[0], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 659 | |
---|
[1287] | 660 | ::MPI_Recv(recv_buf.data(), 3*size_info[1], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
---|
[1134] | 661 | |
---|
| 662 | } |
---|
| 663 | |
---|
[1287] | 664 | ::MPI_Bcast(recv_buf.data(), 3*size_info[1], static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
---|
[1134] | 665 | |
---|
| 666 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[1], rank_info[2].begin() ); |
---|
| 667 | std::copy ( recv_buf.data() + size_info[1], recv_buf.data() + 2*size_info[1], rank_info[3].begin() ); |
---|
| 668 | std::copy ( recv_buf.data() + 2*size_info[1], recv_buf.data() + 3*size_info[1], ep_info[1].begin() ); |
---|
| 669 | |
---|
| 670 | offset.resize(size_info[0]); |
---|
| 671 | |
---|
| 672 | if(leader_info[0]<leader_info[1]) // erase all ranks doubled with remote_comm, except the local leader |
---|
| 673 | { |
---|
| 674 | |
---|
| 675 | bool found = false; |
---|
| 676 | int ep_tmp; |
---|
| 677 | int ep_local; |
---|
| 678 | int ep_remote; |
---|
| 679 | for(int i=0; i<size_info[0]; i++) |
---|
| 680 | { |
---|
| 681 | int target = rank_info[0][i]; |
---|
| 682 | found = false; |
---|
| 683 | for(int j=0; j<size_info[1]; j++) |
---|
| 684 | { |
---|
| 685 | if(target == rank_info[2][j]) |
---|
| 686 | { |
---|
| 687 | found = true; |
---|
| 688 | ep_tmp = ep_info[1][j]; |
---|
| 689 | ep_local = ep_info[0][j]; |
---|
| 690 | ep_remote = ep_info[1][j]; |
---|
| 691 | break; |
---|
| 692 | } |
---|
| 693 | } |
---|
| 694 | if(found) |
---|
| 695 | { |
---|
| 696 | |
---|
| 697 | if(target == leader_info[0]) // the leader is doubled in remote |
---|
| 698 | { |
---|
| 699 | new_rank_info[0].push_back(target); |
---|
| 700 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
| 701 | |
---|
| 702 | new_ep_info[0].push_back(ep_local + ep_remote); |
---|
| 703 | offset[i] = 0; |
---|
| 704 | } |
---|
| 705 | else |
---|
| 706 | { |
---|
| 707 | offset[i] = ep_local; |
---|
| 708 | } |
---|
| 709 | } |
---|
| 710 | else |
---|
| 711 | { |
---|
| 712 | new_rank_info[0].push_back(target); |
---|
| 713 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
| 714 | |
---|
| 715 | new_ep_info[0].push_back(ep_info[0][i]); |
---|
| 716 | |
---|
| 717 | offset[i] = 0; |
---|
| 718 | } |
---|
| 719 | |
---|
| 720 | } |
---|
| 721 | } |
---|
| 722 | |
---|
| 723 | else // erase rank doubled with remote leader |
---|
| 724 | { |
---|
| 725 | |
---|
| 726 | bool found = false; |
---|
| 727 | int ep_tmp; |
---|
| 728 | int ep_local; |
---|
| 729 | int ep_remote; |
---|
| 730 | for(int i=0; i<size_info[0]; i++) |
---|
| 731 | { |
---|
| 732 | int target = rank_info[0][i]; |
---|
| 733 | found = false; |
---|
| 734 | for(int j=0; j<size_info[1]; j++) |
---|
| 735 | { |
---|
| 736 | |
---|
| 737 | if(target == rank_info[2][j]) |
---|
| 738 | { |
---|
| 739 | found = true; |
---|
| 740 | ep_tmp = ep_info[1][j]; |
---|
| 741 | ep_local = ep_info[0][j]; |
---|
| 742 | ep_remote = ep_info[1][j]; |
---|
| 743 | break; |
---|
| 744 | } |
---|
| 745 | } |
---|
| 746 | if(found) |
---|
| 747 | { |
---|
| 748 | if(target != leader_info[1]) |
---|
| 749 | { |
---|
| 750 | new_rank_info[0].push_back(target); |
---|
| 751 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
| 752 | |
---|
| 753 | new_ep_info[0].push_back(ep_local + ep_remote); |
---|
| 754 | offset[i] = 0; |
---|
| 755 | } |
---|
| 756 | else // found remote leader |
---|
| 757 | { |
---|
| 758 | offset[i] = ep_remote; |
---|
| 759 | } |
---|
| 760 | } |
---|
| 761 | else |
---|
| 762 | { |
---|
| 763 | new_rank_info[0].push_back(target); |
---|
| 764 | new_rank_info[1].push_back(rank_info[1][i]); |
---|
| 765 | |
---|
| 766 | new_ep_info[0].push_back(ep_info[0][i]); |
---|
| 767 | offset[i] = 0; |
---|
| 768 | } |
---|
| 769 | } |
---|
| 770 | } |
---|
| 771 | |
---|
| 772 | if(offset[mpi_rank] == 0) |
---|
| 773 | { |
---|
| 774 | is_final_master = true; |
---|
| 775 | } |
---|
| 776 | |
---|
| 777 | |
---|
| 778 | // size_info[4]: 2->size of new_ep_info for local, 3->size of new_ep_info for remote |
---|
| 779 | |
---|
| 780 | if(is_local_leader) |
---|
| 781 | { |
---|
| 782 | size_info[2] = new_ep_info[0].size(); |
---|
| 783 | ::MPI_Status mpi_status; |
---|
| 784 | |
---|
[1287] | 785 | ::MPI_Send(&size_info[2], 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 786 | |
---|
[1287] | 787 | ::MPI_Recv(&size_info[3], 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
---|
[1134] | 788 | } |
---|
| 789 | |
---|
[1287] | 790 | ::MPI_Bcast(&size_info[2], 2, static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
---|
[1134] | 791 | |
---|
| 792 | new_rank_info[2].resize(size_info[3]); |
---|
| 793 | new_rank_info[3].resize(size_info[3]); |
---|
| 794 | new_ep_info[1].resize(size_info[3]); |
---|
| 795 | |
---|
| 796 | send_buf.resize(size_info[2]); |
---|
| 797 | recv_buf.resize(size_info[3]); |
---|
| 798 | |
---|
| 799 | if(is_local_leader) |
---|
| 800 | { |
---|
| 801 | ::MPI_Status mpi_status; |
---|
| 802 | |
---|
| 803 | std::copy ( new_rank_info[0].data(), new_rank_info[0].data() + size_info[2], send_buf.begin() ); |
---|
| 804 | std::copy ( new_rank_info[1].data(), new_rank_info[1].data() + size_info[2], send_buf.begin() + size_info[2] ); |
---|
| 805 | std::copy ( new_ep_info[0].data(), new_ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[2] ); |
---|
| 806 | |
---|
[1287] | 807 | ::MPI_Send(send_buf.data(), 3*size_info[2], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 808 | |
---|
[1287] | 809 | ::MPI_Recv(recv_buf.data(), 3*size_info[3], static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
---|
[1134] | 810 | } |
---|
| 811 | |
---|
[1287] | 812 | ::MPI_Bcast(recv_buf.data(), 3*size_info[3], static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
---|
[1134] | 813 | |
---|
| 814 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[3], new_rank_info[2].begin() ); |
---|
| 815 | std::copy ( recv_buf.data() + size_info[3], recv_buf.data() + 2*size_info[3], new_rank_info[3].begin() ); |
---|
| 816 | std::copy ( recv_buf.data() + 2*size_info[3], recv_buf.data() + 3*size_info[3], new_ep_info[1].begin() ); |
---|
| 817 | |
---|
| 818 | } |
---|
| 819 | |
---|
| 820 | |
---|
| 821 | |
---|
| 822 | if(is_proc_master) |
---|
| 823 | { |
---|
| 824 | // leader_info[4]: 2-> rank of local leader in new_group generated comm; |
---|
| 825 | // 3-> rank of remote leader in new_group generated comm; |
---|
| 826 | ::MPI_Group local_group; |
---|
| 827 | ::MPI_Group new_group; |
---|
| 828 | ::MPI_Comm new_comm; |
---|
| 829 | ::MPI_Comm intercomm; |
---|
| 830 | |
---|
| 831 | ::MPI_Comm_group(local_mpi_comm, &local_group); |
---|
| 832 | |
---|
| 833 | ::MPI_Group_incl(local_group, size_info[2], new_rank_info[1].data(), &new_group); |
---|
| 834 | |
---|
| 835 | ::MPI_Comm_create(local_mpi_comm, new_group, &new_comm); |
---|
| 836 | |
---|
| 837 | |
---|
| 838 | |
---|
| 839 | if(is_local_leader) |
---|
| 840 | { |
---|
| 841 | ::MPI_Comm_rank(new_comm, &leader_info[2]); |
---|
| 842 | } |
---|
| 843 | |
---|
[1287] | 844 | ::MPI_Bcast(&leader_info[2], 1, static_cast< ::MPI_Datatype> (MPI_INT), local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
---|
[1134] | 845 | |
---|
[1287] | 846 | if(new_comm != static_cast< ::MPI_Comm >(MPI_COMM_NULL.mpi_comm)) |
---|
[1134] | 847 | { |
---|
| 848 | ::MPI_Barrier(new_comm); |
---|
| 849 | |
---|
| 850 | ::MPI_Intercomm_create(new_comm, leader_info[2], peer_comm, leader_info[1], tag, &intercomm); |
---|
| 851 | |
---|
| 852 | int id; |
---|
| 853 | ::MPI_Comm_rank(new_comm, &id); |
---|
| 854 | int my_num_ep = new_ep_info[0][id]; |
---|
| 855 | |
---|
| 856 | MPI_Comm *ep_intercomm; |
---|
| 857 | MPI_Info info; |
---|
| 858 | MPI_Comm_create_endpoints(new_comm, my_num_ep, info, ep_intercomm); |
---|
| 859 | |
---|
| 860 | for(int i= 0; i<my_num_ep; i++) |
---|
| 861 | { |
---|
| 862 | ep_intercomm[i].is_intercomm = true; |
---|
| 863 | |
---|
| 864 | ep_intercomm[i].ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
---|
| 865 | ep_intercomm[i].ep_comm_ptr->intercomm->mpi_inter_comm = intercomm; |
---|
| 866 | ep_intercomm[i].ep_comm_ptr->comm_label = leader_info[0]; |
---|
| 867 | } |
---|
| 868 | |
---|
| 869 | |
---|
| 870 | #pragma omp critical (write_to_tag_list) |
---|
| 871 | tag_list.push_back(make_pair( make_pair(tag, min(leader_info[0], leader_info[1])) , ep_intercomm)); |
---|
[1287] | 872 | |
---|
[1134] | 873 | |
---|
| 874 | } |
---|
| 875 | |
---|
| 876 | |
---|
| 877 | } |
---|
| 878 | |
---|
| 879 | |
---|
| 880 | vector<int> bcast_buf(8); |
---|
| 881 | if(is_local_leader) |
---|
| 882 | { |
---|
| 883 | std::copy(size_info, size_info+4, bcast_buf.begin()); |
---|
| 884 | std::copy(leader_info, leader_info+4, bcast_buf.begin()+4); |
---|
| 885 | } |
---|
| 886 | |
---|
| 887 | |
---|
| 888 | |
---|
[1287] | 889 | MPI_Bcast(bcast_buf.data(), 8, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
---|
[1134] | 890 | |
---|
| 891 | |
---|
| 892 | if(!is_local_leader) |
---|
| 893 | { |
---|
| 894 | std::copy(bcast_buf.begin(), bcast_buf.begin()+4, size_info); |
---|
| 895 | std::copy(bcast_buf.begin()+4, bcast_buf.begin()+8, leader_info); |
---|
| 896 | } |
---|
| 897 | |
---|
| 898 | |
---|
| 899 | |
---|
| 900 | if(!is_local_leader) |
---|
| 901 | { |
---|
| 902 | new_rank_info[1].resize(size_info[2]); |
---|
| 903 | ep_info[1].resize(size_info[1]); |
---|
| 904 | offset.resize(size_info[0]); |
---|
| 905 | } |
---|
| 906 | |
---|
| 907 | bcast_buf.resize(size_info[2]+size_info[1]+size_info[0]+1); |
---|
| 908 | |
---|
| 909 | if(is_local_leader) |
---|
| 910 | { |
---|
| 911 | bcast_buf[0] = remote_ep_size; |
---|
| 912 | std::copy(new_rank_info[1].data(), new_rank_info[1].data()+size_info[2], bcast_buf.begin()+1); |
---|
| 913 | std::copy(ep_info[1].data(), ep_info[1].data()+size_info[1], bcast_buf.begin()+size_info[2]+1); |
---|
| 914 | std::copy(offset.data(), offset.data()+size_info[0], bcast_buf.begin()+size_info[2]+size_info[1]+1); |
---|
| 915 | } |
---|
| 916 | |
---|
[1287] | 917 | MPI_Bcast(bcast_buf.data(), size_info[2]+size_info[1]+size_info[0]+1, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
---|
[1134] | 918 | |
---|
| 919 | |
---|
| 920 | if(!is_local_leader) |
---|
| 921 | { |
---|
| 922 | remote_ep_size = bcast_buf[0]; |
---|
| 923 | std::copy(bcast_buf.data()+1, bcast_buf.data()+1+size_info[2], new_rank_info[1].begin()); |
---|
| 924 | std::copy(bcast_buf.data()+1+size_info[2], bcast_buf.data()+1+size_info[2]+size_info[1], ep_info[1].begin()); |
---|
| 925 | 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()); |
---|
| 926 | } |
---|
| 927 | |
---|
| 928 | |
---|
| 929 | int my_position = offset[rank_in_local_parent]+ep_rank_loc; |
---|
| 930 | |
---|
| 931 | |
---|
| 932 | #pragma omp critical (read_from_tag_list) |
---|
| 933 | { |
---|
| 934 | bool found = false; |
---|
| 935 | while(!found) |
---|
| 936 | { |
---|
| 937 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
| 938 | { |
---|
| 939 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
| 940 | { |
---|
| 941 | *newintercomm = iter->second[my_position]; |
---|
| 942 | |
---|
| 943 | found = true; |
---|
| 944 | break; |
---|
| 945 | } |
---|
| 946 | } |
---|
| 947 | } |
---|
| 948 | } |
---|
| 949 | |
---|
[1287] | 950 | MPI_Barrier(local_comm); |
---|
[1134] | 951 | |
---|
[1287] | 952 | if(is_local_leader) |
---|
| 953 | { |
---|
| 954 | int local_flag = true; |
---|
| 955 | int remote_flag = false; |
---|
| 956 | ::MPI_Status mpi_status; |
---|
| 957 | |
---|
| 958 | ::MPI_Send(&local_flag, 1, static_cast< ::MPI_Datatype>(MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
| 959 | |
---|
| 960 | ::MPI_Recv(&remote_flag, 1, static_cast< ::MPI_Datatype>(MPI_INT), mpi_remote_leader, tag, peer_comm, &mpi_status); |
---|
| 961 | } |
---|
| 962 | |
---|
| 963 | MPI_Barrier(local_comm); |
---|
| 964 | |
---|
[1134] | 965 | if(is_proc_master) |
---|
| 966 | { |
---|
| 967 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
| 968 | { |
---|
| 969 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
| 970 | { |
---|
| 971 | tag_list.erase(iter); |
---|
| 972 | break; |
---|
| 973 | } |
---|
| 974 | } |
---|
| 975 | } |
---|
| 976 | |
---|
| 977 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
---|
| 978 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
---|
| 979 | |
---|
| 980 | intercomm_ep_rank = newintercomm->ep_comm_ptr->size_rank_info[0].first; |
---|
| 981 | intercomm_ep_rank_loc = newintercomm->ep_comm_ptr->size_rank_info[1].first; |
---|
| 982 | intercomm_mpi_rank = newintercomm->ep_comm_ptr->size_rank_info[2].first; |
---|
| 983 | intercomm_ep_size = newintercomm->ep_comm_ptr->size_rank_info[0].second; |
---|
| 984 | intercomm_num_ep = newintercomm->ep_comm_ptr->size_rank_info[1].second; |
---|
| 985 | intercomm_mpi_size = newintercomm->ep_comm_ptr->size_rank_info[2].second; |
---|
| 986 | |
---|
| 987 | |
---|
[1287] | 988 | MPI_Bcast(&remote_ep_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
---|
[1134] | 989 | |
---|
| 990 | int my_rank_map_elem[2]; |
---|
| 991 | |
---|
| 992 | |
---|
| 993 | my_rank_map_elem[0] = intercomm_ep_rank; |
---|
| 994 | |
---|
| 995 | my_rank_map_elem[1] = (*newintercomm).ep_comm_ptr->comm_label; |
---|
| 996 | |
---|
| 997 | vector<pair<int, int> > local_rank_map_array; |
---|
| 998 | vector<pair<int, int> > remote_rank_map_array; |
---|
| 999 | |
---|
| 1000 | |
---|
| 1001 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
---|
| 1002 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->resize(local_ep_size); |
---|
| 1003 | |
---|
[1287] | 1004 | MPI_Allgather(my_rank_map_elem, 2, MPI_INT, (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT, local_comm); |
---|
| 1005 | |
---|
[1134] | 1006 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
---|
| 1007 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->resize(remote_ep_size); |
---|
| 1008 | |
---|
| 1009 | int local_intercomm_size = intercomm_ep_size; |
---|
| 1010 | int remote_intercomm_size; |
---|
| 1011 | |
---|
| 1012 | |
---|
| 1013 | if(is_local_leader) |
---|
| 1014 | { |
---|
| 1015 | ::MPI_Status status; |
---|
| 1016 | |
---|
[1287] | 1017 | ::MPI_Send((*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_ep_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 1018 | |
---|
[1287] | 1019 | ::MPI_Recv((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
---|
[1134] | 1020 | |
---|
[1287] | 1021 | ::MPI_Send(&local_intercomm_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 1022 | |
---|
[1287] | 1023 | ::MPI_Recv(&remote_intercomm_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
---|
[1134] | 1024 | } |
---|
| 1025 | |
---|
[1287] | 1026 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, static_cast< ::MPI_Datatype> (MPI_INT), local_leader, local_comm); |
---|
| 1027 | MPI_Bcast(&remote_intercomm_size, 1, static_cast< ::MPI_Datatype> (MPI_INT), 0, *newintercomm); |
---|
[1134] | 1028 | |
---|
| 1029 | |
---|
| 1030 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map = new RANK_MAP; |
---|
| 1031 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->resize(remote_intercomm_size); |
---|
| 1032 | |
---|
| 1033 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[0] = local_comm.ep_comm_ptr->size_rank_info[0]; |
---|
| 1034 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[1] = local_comm.ep_comm_ptr->size_rank_info[1]; |
---|
| 1035 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[2] = local_comm.ep_comm_ptr->size_rank_info[2]; |
---|
| 1036 | |
---|
| 1037 | |
---|
| 1038 | if(is_local_leader) |
---|
| 1039 | { |
---|
| 1040 | ::MPI_Status status; |
---|
| 1041 | |
---|
[1287] | 1042 | ::MPI_Send((*newintercomm).rank_map->data(), 2*local_intercomm_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm); |
---|
[1134] | 1043 | |
---|
[1287] | 1044 | ::MPI_Recv((*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, static_cast< ::MPI_Datatype> (MPI_INT), mpi_remote_leader, tag, peer_comm, &status); |
---|
[1134] | 1045 | } |
---|
| 1046 | |
---|
[1287] | 1047 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, static_cast< ::MPI_Datatype> (MPI_INT), 0, *newintercomm); |
---|
[1134] | 1048 | |
---|
| 1049 | (*newintercomm).ep_comm_ptr->intercomm->local_comm = &(local_comm.ep_comm_ptr->comm_list[ep_rank_loc]); |
---|
| 1050 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_tag = local_comm.ep_comm_ptr->comm_label; |
---|
| 1051 | |
---|
| 1052 | return MPI_SUCCESS; |
---|
| 1053 | |
---|
| 1054 | } |
---|
| 1055 | |
---|
| 1056 | #endif |
---|
| 1057 | |
---|
| 1058 | } |
---|
| 1059 | |
---|