[1034] | 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 | |
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| 8 | namespace ep_lib |
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| 9 | { |
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| 10 | 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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| 11 | { |
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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 | 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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| 24 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
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| 25 | |
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| 26 | int rank_in_world; |
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| 27 | int rank_in_local_parent; |
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| 28 | |
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| 29 | int rank_in_peer_mpi[2]; |
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| 30 | |
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| 31 | int local_ep_size = ep_size; |
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| 32 | int remote_ep_size; |
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| 33 | |
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| 34 | |
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| 35 | ::MPI_Comm local_mpi_comm = static_cast< ::MPI_Comm>(local_comm.mpi_comm); |
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| 36 | |
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| 37 | #ifdef _serialized |
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| 38 | #pragma omp critical (_mpi_call) |
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| 39 | #endif // _serialized |
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| 40 | { |
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| 41 | ::MPI_Comm_rank(MPI_COMM_WORLD_STD, &rank_in_world); |
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| 42 | ::MPI_Comm_rank(static_cast< ::MPI_Comm>(local_comm.mpi_comm), &rank_in_local_parent); |
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| 43 | } |
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| 44 | |
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| 45 | bool is_proc_master = false; |
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| 46 | bool is_local_leader = false; |
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| 47 | bool is_final_master = false; |
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| 48 | |
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| 49 | |
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| 50 | if(ep_rank == local_leader) { is_proc_master = true; is_local_leader = true; is_final_master = true;} |
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| 51 | if(ep_rank_loc == 0 && mpi_rank != local_comm.rank_map->at(local_leader).second) is_proc_master = true; |
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| 52 | |
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| 53 | |
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| 54 | 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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| 55 | |
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| 56 | int leader_info[4]; //! 0->world rank of local_leader, 1->world rank of remote leader |
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| 57 | |
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| 58 | |
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| 59 | std::vector<int> ep_info[2]; //! 0-> num_ep in local_comm, 1->num_ep in remote_comm |
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| 60 | |
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| 61 | std::vector<int> new_rank_info[4]; |
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| 62 | std::vector<int> new_ep_info[2]; |
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| 63 | |
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| 64 | std::vector<int> offset; |
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| 65 | |
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| 66 | if(is_proc_master) |
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| 67 | { |
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| 68 | |
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| 69 | size_info[0] = mpi_size; |
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| 70 | |
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| 71 | rank_info[0].resize(size_info[0]); |
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| 72 | rank_info[1].resize(size_info[0]); |
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| 73 | |
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| 74 | |
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| 75 | |
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| 76 | ep_info[0].resize(size_info[0]); |
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| 77 | |
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| 78 | vector<int> send_buf(6); |
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| 79 | vector<int> recv_buf(3*size_info[0]); |
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| 80 | |
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| 81 | send_buf[0] = rank_in_world; |
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| 82 | send_buf[1] = rank_in_local_parent; |
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| 83 | send_buf[2] = num_ep; |
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| 84 | |
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| 85 | #ifdef _serialized |
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| 86 | #pragma omp critical (_mpi_call) |
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| 87 | #endif // _serialized |
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| 88 | ::MPI_Allgather(send_buf.data(), 3, MPI_INT_STD, recv_buf.data(), 3, MPI_INT_STD, local_mpi_comm); |
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| 89 | |
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| 90 | for(int i=0; i<size_info[0]; i++) |
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| 91 | { |
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| 92 | rank_info[0][i] = recv_buf[3*i]; |
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| 93 | rank_info[1][i] = recv_buf[3*i+1]; |
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| 94 | ep_info[0][i] = recv_buf[3*i+2]; |
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| 95 | } |
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| 96 | |
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| 97 | if(is_local_leader) |
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| 98 | { |
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| 99 | leader_info[0] = rank_in_world; |
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| 100 | leader_info[1] = remote_leader; |
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| 101 | |
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| 102 | #ifdef _serialized |
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| 103 | #pragma omp critical (_mpi_call) |
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| 104 | #endif // _serialized |
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| 105 | ::MPI_Comm_rank(static_cast< ::MPI_Comm>(peer_comm.mpi_comm), &rank_in_peer_mpi[0]); |
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| 106 | |
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| 107 | MPI_Status status; |
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| 108 | |
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| 109 | send_buf[0] = size_info[0]; |
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| 110 | send_buf[1] = local_ep_size; |
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| 111 | send_buf[2] = rank_in_peer_mpi[0]; |
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| 112 | |
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| 113 | MPI_Send(send_buf.data(), 3, MPI_INT_STD, remote_leader, tag, peer_comm); |
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| 114 | MPI_Recv(recv_buf.data(), 3, MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
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| 115 | |
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| 116 | size_info[1] = recv_buf[0]; |
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| 117 | remote_ep_size = recv_buf[1]; |
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| 118 | rank_in_peer_mpi[1] = recv_buf[2]; |
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| 119 | |
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| 120 | } |
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| 121 | |
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| 122 | send_buf[0] = size_info[1]; |
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| 123 | send_buf[1] = leader_info[0]; |
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| 124 | send_buf[2] = leader_info[1]; |
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| 125 | send_buf[3] = rank_in_peer_mpi[0]; |
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| 126 | send_buf[4] = rank_in_peer_mpi[1]; |
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| 127 | |
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| 128 | #ifdef _serialized |
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| 129 | #pragma omp critical (_mpi_call) |
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| 130 | #endif // _serialized |
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| 131 | ::MPI_Bcast(send_buf.data(), 5, MPI_INT_STD, local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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| 132 | |
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| 133 | size_info[1] = send_buf[0]; |
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| 134 | leader_info[0] = send_buf[1]; |
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| 135 | leader_info[1] = send_buf[2]; |
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| 136 | rank_in_peer_mpi[0] = send_buf[3]; |
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| 137 | rank_in_peer_mpi[1] = send_buf[4]; |
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| 138 | |
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| 139 | |
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| 140 | rank_info[2].resize(size_info[1]); |
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| 141 | rank_info[3].resize(size_info[1]); |
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| 142 | |
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| 143 | ep_info[1].resize(size_info[1]); |
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| 144 | |
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| 145 | send_buf.resize(3*size_info[0]); |
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| 146 | recv_buf.resize(3*size_info[1]); |
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| 147 | |
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| 148 | if(is_local_leader) |
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| 149 | { |
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| 150 | MPI_Status status; |
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| 151 | |
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| 152 | std::copy ( rank_info[0].data(), rank_info[0].data() + size_info[0], send_buf.begin() ); |
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| 153 | std::copy ( rank_info[1].data(), rank_info[1].data() + size_info[0], send_buf.begin() + size_info[0] ); |
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| 154 | std::copy ( ep_info[0].data(), ep_info[0].data() + size_info[0], send_buf.begin() + 2*size_info[0] ); |
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| 155 | |
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| 156 | MPI_Send(send_buf.data(), 3*size_info[0], MPI_INT_STD, remote_leader, tag, peer_comm); |
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| 157 | MPI_Recv(recv_buf.data(), 3*size_info[1], MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
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| 158 | |
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| 159 | } |
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| 160 | |
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| 161 | #ifdef _serialized |
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| 162 | #pragma omp critical (_mpi_call) |
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| 163 | #endif // _serialized |
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| 164 | ::MPI_Bcast(recv_buf.data(), 3*size_info[1], MPI_INT_STD, local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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| 165 | |
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| 166 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[1], rank_info[2].begin() ); |
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| 167 | std::copy ( recv_buf.data() + size_info[1], recv_buf.data() + 2*size_info[1], rank_info[3].begin() ); |
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| 168 | std::copy ( recv_buf.data() + 2*size_info[1], recv_buf.data() + 3*size_info[1], ep_info[1].begin() ); |
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| 169 | |
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| 170 | |
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| 171 | offset.resize(size_info[0]); |
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| 172 | |
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| 173 | if(leader_info[0]<leader_info[1]) // erase all ranks doubled with remote_comm, except the local leader |
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| 174 | { |
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| 175 | |
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| 176 | bool found = false; |
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| 177 | int ep_local; |
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| 178 | int ep_remote; |
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| 179 | for(int i=0; i<size_info[0]; i++) |
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| 180 | { |
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| 181 | int target = rank_info[0][i]; |
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| 182 | found = false; |
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| 183 | for(int j=0; j<size_info[1]; j++) |
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| 184 | { |
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| 185 | if(target == rank_info[2][j]) |
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| 186 | { |
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| 187 | found = true; |
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| 188 | ep_local = ep_info[0][j]; |
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| 189 | ep_remote = ep_info[1][j]; |
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| 190 | break; |
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| 191 | } |
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| 192 | } |
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| 193 | if(found) |
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| 194 | { |
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| 195 | |
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| 196 | if(target == leader_info[0]) // the leader is doubled in remote |
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| 197 | { |
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| 198 | new_rank_info[0].push_back(target); |
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| 199 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 200 | |
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| 201 | new_ep_info[0].push_back(ep_local + ep_remote); |
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| 202 | offset[i] = 0; |
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| 203 | } |
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| 204 | else |
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| 205 | { |
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| 206 | offset[i] = ep_local; |
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| 207 | } |
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| 208 | } |
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| 209 | else |
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| 210 | { |
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| 211 | new_rank_info[0].push_back(target); |
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| 212 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 213 | |
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| 214 | new_ep_info[0].push_back(ep_info[0][i]); |
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| 215 | |
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| 216 | offset[i] = 0; |
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| 217 | } |
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| 218 | |
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| 219 | } |
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| 220 | } |
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| 221 | |
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| 222 | else // erase rank doubled with remote leader |
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| 223 | { |
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| 224 | |
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| 225 | bool found = false; |
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| 226 | int ep_local; |
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| 227 | int ep_remote; |
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| 228 | for(int i=0; i<size_info[0]; i++) |
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| 229 | { |
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| 230 | int target = rank_info[0][i]; |
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| 231 | found = false; |
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| 232 | for(int j=0; j<size_info[1]; j++) |
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| 233 | { |
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| 234 | |
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| 235 | if(target == rank_info[2][j]) |
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| 236 | { |
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| 237 | found = true; |
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| 238 | ep_local = ep_info[0][j]; |
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| 239 | ep_remote = ep_info[1][j]; |
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| 240 | break; |
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| 241 | } |
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| 242 | } |
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| 243 | if(found) |
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| 244 | { |
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| 245 | if(target != leader_info[1]) |
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| 246 | { |
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| 247 | new_rank_info[0].push_back(target); |
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| 248 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 249 | |
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| 250 | new_ep_info[0].push_back(ep_local + ep_remote); |
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| 251 | offset[i] = 0; |
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| 252 | } |
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| 253 | else // found remote leader |
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| 254 | { |
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| 255 | offset[i] = ep_remote; |
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| 256 | } |
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| 257 | } |
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| 258 | else |
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| 259 | { |
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| 260 | new_rank_info[0].push_back(target); |
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| 261 | new_rank_info[1].push_back(rank_info[1][i]); |
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| 262 | |
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| 263 | new_ep_info[0].push_back(ep_info[0][i]); |
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| 264 | offset[i] = 0; |
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| 265 | } |
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| 266 | } |
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| 267 | } |
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| 268 | |
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| 269 | if(offset[mpi_rank] == 0) |
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| 270 | { |
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| 271 | is_final_master = true; |
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| 272 | } |
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| 273 | |
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| 274 | |
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| 275 | //! size_info[4]: 2->size of new_ep_info for local, 3->size of new_ep_info for remote |
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| 276 | |
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| 277 | if(is_local_leader) |
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| 278 | { |
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| 279 | size_info[2] = new_ep_info[0].size(); |
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| 280 | MPI_Status status; |
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| 281 | MPI_Send(&size_info[2], 1, MPI_INT_STD, remote_leader, tag, peer_comm); |
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| 282 | MPI_Recv(&size_info[3], 1, MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
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| 283 | } |
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| 284 | |
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| 285 | #ifdef _serialized |
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| 286 | #pragma omp critical (_mpi_call) |
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| 287 | #endif // _serialized |
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| 288 | ::MPI_Bcast(&size_info[2], 2, MPI_INT_STD, local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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| 289 | |
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| 290 | new_rank_info[2].resize(size_info[3]); |
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| 291 | new_rank_info[3].resize(size_info[3]); |
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| 292 | new_ep_info[1].resize(size_info[3]); |
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| 293 | |
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| 294 | send_buf.resize(size_info[2]); |
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| 295 | recv_buf.resize(size_info[3]); |
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| 296 | |
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| 297 | if(is_local_leader) |
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| 298 | { |
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| 299 | MPI_Status status; |
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| 300 | |
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| 301 | std::copy ( new_rank_info[0].data(), new_rank_info[0].data() + size_info[2], send_buf.begin() ); |
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| 302 | 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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| 303 | 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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| 304 | |
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| 305 | MPI_Send(send_buf.data(), 3*size_info[2], MPI_INT_STD, remote_leader, tag, peer_comm); |
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| 306 | MPI_Recv(recv_buf.data(), 3*size_info[3], MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
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| 307 | } |
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| 308 | |
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| 309 | |
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| 310 | #ifdef _serialized |
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| 311 | #pragma omp critical (_mpi_call) |
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| 312 | #endif // _serialized |
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| 313 | ::MPI_Bcast(recv_buf.data(), 3*size_info[3], MPI_INT_STD, local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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| 314 | |
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| 315 | std::copy ( recv_buf.data(), recv_buf.data() + size_info[3], new_rank_info[2].begin() ); |
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| 316 | std::copy ( recv_buf.data() + size_info[3], recv_buf.data() + 2*size_info[3], new_rank_info[3].begin() ); |
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| 317 | 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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| 318 | |
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| 319 | } |
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| 320 | |
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| 321 | |
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| 322 | |
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| 323 | if(is_proc_master) |
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| 324 | { |
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| 325 | //! leader_info[4]: 2-> rank of local leader in new_group generated comm; |
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| 326 | // 3-> rank of remote leader in new_group generated comm; |
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| 327 | ::MPI_Group local_group; |
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| 328 | ::MPI_Group new_group; |
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| 329 | ::MPI_Comm new_comm; |
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| 330 | ::MPI_Comm intercomm; |
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| 331 | |
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| 332 | #ifdef _serialized |
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| 333 | #pragma omp critical (_mpi_call) |
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| 334 | #endif // _serialized |
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| 335 | ::MPI_Comm_group(local_mpi_comm, &local_group); |
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| 336 | |
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| 337 | #ifdef _serialized |
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| 338 | #pragma omp critical (_mpi_call) |
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| 339 | #endif // _serialized |
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| 340 | ::MPI_Group_incl(local_group, size_info[2], new_rank_info[1].data(), &new_group); |
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| 341 | |
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| 342 | #ifdef _serialized |
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| 343 | #pragma omp critical (_mpi_call) |
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| 344 | #endif // _serialized |
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| 345 | ::MPI_Comm_create(local_mpi_comm, new_group, &new_comm); |
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| 346 | |
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| 347 | |
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| 348 | |
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| 349 | if(is_local_leader) |
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| 350 | { |
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| 351 | #ifdef _serialized |
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| 352 | #pragma omp critical (_mpi_call) |
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| 353 | #endif // _serialized |
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| 354 | ::MPI_Comm_rank(new_comm, &leader_info[2]); |
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| 355 | } |
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| 356 | |
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| 357 | #ifdef _serialized |
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| 358 | #pragma omp critical (_mpi_call) |
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| 359 | #endif // _serialized |
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| 360 | ::MPI_Bcast(&leader_info[2], 1, MPI_INT_STD, local_comm.rank_map->at(local_leader).second, local_mpi_comm); |
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| 361 | |
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| 362 | if(new_comm != MPI_COMM_NULL_STD) |
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| 363 | { |
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| 364 | |
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| 365 | #ifdef _serialized |
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| 366 | #pragma omp critical (_mpi_call) |
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| 367 | #endif // _serialized |
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| 368 | ::MPI_Barrier(new_comm); |
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| 369 | |
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| 370 | #ifdef _serialized |
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| 371 | #pragma omp critical (_mpi_call) |
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| 372 | #endif // _serialized |
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| 373 | ::MPI_Intercomm_create(new_comm, leader_info[2], static_cast< ::MPI_Comm>(peer_comm.mpi_comm), rank_in_peer_mpi[1], tag, &intercomm); |
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| 374 | |
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| 375 | int id; |
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| 376 | #ifdef _serialized |
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| 377 | #pragma omp critical (_mpi_call) |
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| 378 | #endif // _serialized |
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| 379 | ::MPI_Comm_rank(new_comm, &id); |
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| 380 | int my_num_ep = new_ep_info[0][id]; |
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| 381 | |
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| 382 | MPI_Comm *ep_intercomm; |
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| 383 | MPI_Info info; |
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| 384 | MPI_Comm_create_endpoints(new_comm, my_num_ep, info, ep_intercomm); |
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| 385 | |
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| 386 | |
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| 387 | for(int i= 0; i<my_num_ep; i++) |
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| 388 | { |
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| 389 | ep_intercomm[i].is_intercomm = true; |
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| 390 | |
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| 391 | ep_intercomm[i].ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
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| 392 | ep_intercomm[i].ep_comm_ptr->intercomm->mpi_inter_comm = intercomm; |
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| 393 | ep_intercomm[i].ep_comm_ptr->comm_label = leader_info[0]; |
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| 394 | } |
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| 395 | |
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| 396 | |
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| 397 | #pragma omp critical (write_to_tag_list) |
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| 398 | tag_list.push_back(make_pair( make_pair(tag, min(leader_info[0], leader_info[1])) , ep_intercomm)); |
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| 399 | } |
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| 400 | |
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| 401 | |
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| 402 | } |
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| 403 | |
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| 404 | |
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| 405 | MPI_Barrier_local(local_comm); |
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| 406 | |
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| 407 | vector<int> bcast_buf(8); |
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| 408 | if(is_local_leader) |
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| 409 | { |
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| 410 | std::copy(size_info, size_info+4, bcast_buf.begin()); |
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| 411 | std::copy(leader_info, leader_info+4, bcast_buf.begin()+4); |
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| 412 | } |
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| 413 | |
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| 414 | MPI_Bcast(bcast_buf.data(), 8, MPI_INT_STD, local_leader, local_comm); |
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| 415 | |
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| 416 | if(!is_local_leader) |
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| 417 | { |
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| 418 | std::copy(bcast_buf.begin(), bcast_buf.begin()+4, size_info); |
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| 419 | std::copy(bcast_buf.begin()+4, bcast_buf.begin()+8, leader_info); |
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| 420 | } |
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| 421 | |
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| 422 | if(!is_local_leader) |
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| 423 | { |
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| 424 | new_rank_info[1].resize(size_info[2]); |
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| 425 | ep_info[1].resize(size_info[1]); |
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| 426 | offset.resize(size_info[0]); |
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| 427 | } |
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| 428 | |
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| 429 | bcast_buf.resize(size_info[2]+size_info[1]+size_info[0]+1); |
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| 430 | |
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| 431 | if(is_local_leader) |
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| 432 | { |
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| 433 | bcast_buf[0] = remote_ep_size; |
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| 434 | std::copy(new_rank_info[1].data(), new_rank_info[1].data()+size_info[2], bcast_buf.begin()+1); |
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| 435 | std::copy(ep_info[1].data(), ep_info[1].data()+size_info[1], bcast_buf.begin()+size_info[2]+1); |
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| 436 | std::copy(offset.data(), offset.data()+size_info[0], bcast_buf.begin()+size_info[2]+size_info[1]+1); |
---|
| 437 | } |
---|
| 438 | |
---|
| 439 | MPI_Bcast(bcast_buf.data(), size_info[2]+size_info[1]+size_info[0]+1, MPI_INT_STD, local_leader, local_comm); |
---|
| 440 | |
---|
| 441 | if(!is_local_leader) |
---|
| 442 | { |
---|
| 443 | remote_ep_size = bcast_buf[0]; |
---|
| 444 | std::copy(bcast_buf.data()+1, bcast_buf.data()+1+size_info[2], new_rank_info[1].begin()); |
---|
| 445 | std::copy(bcast_buf.data()+1+size_info[2], bcast_buf.data()+1+size_info[2]+size_info[1], ep_info[1].begin()); |
---|
| 446 | 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()); |
---|
| 447 | } |
---|
| 448 | |
---|
| 449 | int my_position = offset[rank_in_local_parent]+ep_rank_loc; |
---|
| 450 | |
---|
| 451 | |
---|
| 452 | MPI_Barrier_local(local_comm); |
---|
| 453 | #pragma omp flush |
---|
| 454 | |
---|
| 455 | |
---|
| 456 | #pragma omp critical (read_from_tag_list) |
---|
| 457 | { |
---|
| 458 | bool found = false; |
---|
| 459 | while(!found) |
---|
| 460 | { |
---|
| 461 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
| 462 | { |
---|
| 463 | if((*iter).first == make_pair(tag, min(leader_info[0], leader_info[1]))) |
---|
| 464 | { |
---|
| 465 | *newintercomm = iter->second[my_position]; |
---|
| 466 | found = true; |
---|
| 467 | break; |
---|
| 468 | } |
---|
| 469 | } |
---|
| 470 | } |
---|
| 471 | } |
---|
| 472 | |
---|
| 473 | MPI_Barrier_local(local_comm); |
---|
| 474 | |
---|
| 475 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
---|
| 476 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
---|
| 477 | |
---|
| 478 | intercomm_ep_rank = newintercomm->ep_comm_ptr->size_rank_info[0].first; |
---|
| 479 | intercomm_ep_rank_loc = newintercomm->ep_comm_ptr->size_rank_info[1].first; |
---|
| 480 | intercomm_mpi_rank = newintercomm->ep_comm_ptr->size_rank_info[2].first; |
---|
| 481 | intercomm_ep_size = newintercomm->ep_comm_ptr->size_rank_info[0].second; |
---|
| 482 | intercomm_num_ep = newintercomm->ep_comm_ptr->size_rank_info[1].second; |
---|
| 483 | intercomm_mpi_size = newintercomm->ep_comm_ptr->size_rank_info[2].second; |
---|
| 484 | |
---|
| 485 | MPI_Bcast(&remote_ep_size, 1, MPI_INT_STD, local_leader, local_comm); |
---|
| 486 | |
---|
| 487 | int my_rank_map_elem[2]; |
---|
| 488 | |
---|
| 489 | my_rank_map_elem[0] = intercomm_ep_rank; |
---|
| 490 | my_rank_map_elem[1] = (*newintercomm).ep_comm_ptr->comm_label; |
---|
| 491 | |
---|
| 492 | vector<pair<int, int> > local_rank_map_array; |
---|
| 493 | vector<pair<int, int> > remote_rank_map_array; |
---|
| 494 | |
---|
| 495 | |
---|
| 496 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
---|
| 497 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->resize(local_ep_size); |
---|
| 498 | |
---|
| 499 | MPI_Allgather(my_rank_map_elem, 2, MPI_INT_STD, (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT_STD, local_comm); |
---|
| 500 | |
---|
| 501 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
---|
| 502 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->resize(remote_ep_size); |
---|
| 503 | |
---|
| 504 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[0] = local_comm.ep_comm_ptr->size_rank_info[0]; |
---|
| 505 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[1] = local_comm.ep_comm_ptr->size_rank_info[1]; |
---|
| 506 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[2] = local_comm.ep_comm_ptr->size_rank_info[2]; |
---|
| 507 | |
---|
| 508 | int local_intercomm_size = intercomm_ep_size; |
---|
| 509 | int remote_intercomm_size; |
---|
| 510 | |
---|
| 511 | int new_bcast_root_0 = 0; |
---|
| 512 | int new_bcast_root = 0; |
---|
| 513 | |
---|
| 514 | |
---|
| 515 | if(is_local_leader) |
---|
| 516 | { |
---|
| 517 | MPI_Status status; |
---|
| 518 | MPI_Send((*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_ep_size, MPI_INT_STD, remote_leader, tag, peer_comm); |
---|
| 519 | MPI_Recv((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
---|
| 520 | |
---|
| 521 | MPI_Send(&local_intercomm_size, 1, MPI_INT_STD, remote_leader, tag, peer_comm); |
---|
| 522 | MPI_Recv(&remote_intercomm_size, 1, MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
---|
| 523 | |
---|
| 524 | new_bcast_root_0 = intercomm_ep_rank; |
---|
| 525 | } |
---|
| 526 | |
---|
| 527 | MPI_Allreduce(&new_bcast_root_0, &new_bcast_root, 1, MPI_INT_STD, MPI_SUM_STD, *newintercomm); |
---|
| 528 | |
---|
| 529 | |
---|
| 530 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_ep_size, MPI_INT_STD, local_leader, local_comm); |
---|
| 531 | MPI_Bcast(&remote_intercomm_size, 1, MPI_INT_STD, new_bcast_root, *newintercomm); |
---|
| 532 | |
---|
| 533 | |
---|
| 534 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map = new RANK_MAP; |
---|
| 535 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->resize(remote_intercomm_size); |
---|
| 536 | |
---|
| 537 | |
---|
| 538 | |
---|
| 539 | |
---|
| 540 | if(is_local_leader) |
---|
| 541 | { |
---|
| 542 | MPI_Status status; |
---|
| 543 | MPI_Send((*newintercomm).rank_map->data(), 2*local_intercomm_size, MPI_INT_STD, remote_leader, tag, peer_comm); |
---|
| 544 | MPI_Recv((*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, MPI_INT_STD, remote_leader, tag, peer_comm, &status); |
---|
| 545 | } |
---|
| 546 | |
---|
| 547 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->data(), 2*remote_intercomm_size, MPI_INT_STD, new_bcast_root, *newintercomm); |
---|
| 548 | |
---|
| 549 | (*newintercomm).ep_comm_ptr->intercomm->local_comm = &(local_comm.ep_comm_ptr->comm_list[ep_rank_loc]); |
---|
| 550 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_tag = tag; |
---|
| 551 | |
---|
| 552 | /* |
---|
| 553 | for(int i=0; i<local_ep_size; i++) |
---|
| 554 | 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, |
---|
| 555 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->at(i).first, (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->at(i).second); |
---|
| 556 | |
---|
| 557 | for(int i=0; i<remote_ep_size; i++) |
---|
| 558 | 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, |
---|
| 559 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->at(i).first, (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->at(i).second); |
---|
| 560 | |
---|
| 561 | for(int i=0; i<remote_intercomm_size; i++) |
---|
| 562 | 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, |
---|
| 563 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->at(i).first, (*newintercomm).ep_comm_ptr->intercomm->intercomm_rank_map->at(i).second); |
---|
| 564 | */ |
---|
| 565 | |
---|
| 566 | // for(int i=0; i<(*newintercomm).rank_map->size(); i++) |
---|
| 567 | // if(local_comm.ep_comm_ptr->comm_label != 99) printf("ep_rank = %d, rank_map[%d] = (%d,%d)\n", intercomm_ep_rank, i, |
---|
| 568 | // (*newintercomm).rank_map->at(i).first, (*newintercomm).rank_map->at(i).second); |
---|
| 569 | |
---|
| 570 | // MPI_Comm *test_comm = newintercomm->ep_comm_ptr->intercomm->local_comm; |
---|
| 571 | // int test_rank; |
---|
| 572 | // MPI_Comm_rank(*test_comm, &test_rank); |
---|
| 573 | // printf("=================test_rank = %d\n", test_rank); |
---|
| 574 | |
---|
| 575 | return MPI_SUCCESS; |
---|
| 576 | |
---|
| 577 | } |
---|
| 578 | |
---|
| 579 | |
---|
| 580 | |
---|
| 581 | |
---|
| 582 | 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) |
---|
| 583 | { |
---|
| 584 | //! mpi_size of local comm = 1 |
---|
| 585 | //! same world rank of leaders |
---|
| 586 | |
---|
| 587 | int ep_rank, ep_rank_loc, mpi_rank; |
---|
| 588 | int ep_size, num_ep, mpi_size; |
---|
| 589 | |
---|
| 590 | ep_rank = local_comm.ep_comm_ptr->size_rank_info[0].first; |
---|
| 591 | ep_rank_loc = local_comm.ep_comm_ptr->size_rank_info[1].first; |
---|
| 592 | mpi_rank = local_comm.ep_comm_ptr->size_rank_info[2].first; |
---|
| 593 | ep_size = local_comm.ep_comm_ptr->size_rank_info[0].second; |
---|
| 594 | num_ep = local_comm.ep_comm_ptr->size_rank_info[1].second; |
---|
| 595 | mpi_size = local_comm.ep_comm_ptr->size_rank_info[2].second; |
---|
| 596 | |
---|
| 597 | |
---|
| 598 | |
---|
| 599 | std::vector<int> rank_info[4]; //! 0->rank_in_world of local_comm, 1->rank_in_local_parent of local_comm |
---|
| 600 | //! 2->rank_in_world of remote_comm, 3->rank_in_local_parent of remote_comm |
---|
| 601 | |
---|
| 602 | int rank_in_world; |
---|
| 603 | |
---|
| 604 | int rank_in_peer_mpi[2]; |
---|
| 605 | |
---|
| 606 | #ifdef _serialized |
---|
| 607 | #pragma omp critical (_mpi_call) |
---|
| 608 | #endif // _serialized |
---|
| 609 | ::MPI_Comm_rank(MPI_COMM_WORLD_STD, &rank_in_world); |
---|
| 610 | |
---|
| 611 | |
---|
| 612 | int local_num_ep = num_ep; |
---|
| 613 | int remote_num_ep; |
---|
| 614 | int total_num_ep; |
---|
| 615 | |
---|
| 616 | int leader_rank_in_peer[2]; |
---|
| 617 | |
---|
| 618 | int my_position; |
---|
| 619 | int tag_label[2]; |
---|
| 620 | |
---|
| 621 | vector<int> send_buf(4); |
---|
| 622 | vector<int> recv_buf(4); |
---|
| 623 | |
---|
| 624 | |
---|
| 625 | if(ep_rank == local_leader) |
---|
| 626 | { |
---|
| 627 | MPI_Status status; |
---|
| 628 | |
---|
| 629 | |
---|
| 630 | |
---|
| 631 | MPI_Comm_rank(peer_comm, &leader_rank_in_peer[0]); |
---|
| 632 | |
---|
| 633 | send_buf[0] = local_num_ep; |
---|
| 634 | send_buf[1] = leader_rank_in_peer[0]; |
---|
| 635 | |
---|
| 636 | MPI_Request req_s, req_r; |
---|
| 637 | |
---|
| 638 | MPI_Isend(send_buf.data(), 2, MPI_INT_STD, remote_leader, tag, peer_comm, &req_s); |
---|
| 639 | MPI_Irecv(recv_buf.data(), 2, MPI_INT_STD, remote_leader, tag, peer_comm, &req_r); |
---|
| 640 | |
---|
| 641 | |
---|
| 642 | MPI_Wait(&req_s, &status); |
---|
| 643 | MPI_Wait(&req_r, &status); |
---|
| 644 | |
---|
| 645 | recv_buf[2] = leader_rank_in_peer[0]; |
---|
| 646 | |
---|
| 647 | } |
---|
| 648 | |
---|
| 649 | MPI_Bcast(recv_buf.data(), 3, MPI_INT_STD, local_leader, local_comm); |
---|
| 650 | |
---|
| 651 | remote_num_ep = recv_buf[0]; |
---|
| 652 | leader_rank_in_peer[1] = recv_buf[1]; |
---|
| 653 | leader_rank_in_peer[0] = recv_buf[2]; |
---|
| 654 | |
---|
| 655 | total_num_ep = local_num_ep + remote_num_ep; |
---|
| 656 | |
---|
| 657 | |
---|
| 658 | if(leader_rank_in_peer[0] < leader_rank_in_peer[1]) |
---|
| 659 | { |
---|
| 660 | my_position = ep_rank_loc; |
---|
| 661 | //! LEADER create EP |
---|
| 662 | if(ep_rank == local_leader) |
---|
| 663 | { |
---|
| 664 | ::MPI_Comm mpi_dup; |
---|
| 665 | |
---|
| 666 | #ifdef _serialized |
---|
| 667 | #pragma omp critical (_mpi_call) |
---|
| 668 | #endif // _serialized |
---|
| 669 | ::MPI_Comm_dup(static_cast< ::MPI_Comm>(local_comm.mpi_comm), &mpi_dup); |
---|
| 670 | |
---|
| 671 | MPI_Comm *ep_intercomm; |
---|
| 672 | MPI_Info info; |
---|
| 673 | MPI_Comm_create_endpoints(mpi_dup, total_num_ep, info, ep_intercomm); |
---|
| 674 | |
---|
| 675 | |
---|
| 676 | for(int i=0; i<total_num_ep; i++) |
---|
| 677 | { |
---|
| 678 | ep_intercomm[i].is_intercomm = true; |
---|
| 679 | ep_intercomm[i].ep_comm_ptr->intercomm = new ep_lib::ep_intercomm; |
---|
| 680 | ep_intercomm[i].ep_comm_ptr->intercomm->mpi_inter_comm = 0; |
---|
| 681 | |
---|
| 682 | ep_intercomm[i].ep_comm_ptr->comm_label = leader_rank_in_peer[0]; |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | tag_label[0] = TAG++; |
---|
| 686 | tag_label[1] = rank_in_world; |
---|
| 687 | |
---|
| 688 | #pragma omp critical (write_to_tag_list) |
---|
| 689 | tag_list.push_back(make_pair( make_pair(tag_label[0], tag_label[1]) , ep_intercomm)); |
---|
| 690 | |
---|
| 691 | MPI_Request req_s; |
---|
| 692 | MPI_Status sta_s; |
---|
| 693 | MPI_Isend(tag_label, 2, MPI_INT_STD, remote_leader, tag, peer_comm, &req_s); |
---|
| 694 | |
---|
| 695 | MPI_Wait(&req_s, &sta_s); |
---|
| 696 | |
---|
| 697 | } |
---|
| 698 | } |
---|
| 699 | else |
---|
| 700 | { |
---|
| 701 | //! Wait for EP creation |
---|
| 702 | my_position = remote_num_ep + ep_rank_loc; |
---|
| 703 | if(ep_rank == local_leader) |
---|
| 704 | { |
---|
| 705 | MPI_Status status; |
---|
| 706 | MPI_Request req_r; |
---|
| 707 | MPI_Irecv(tag_label, 2, MPI_INT_STD, remote_leader, tag, peer_comm, &req_r); |
---|
| 708 | MPI_Wait(&req_r, &status); |
---|
| 709 | } |
---|
| 710 | } |
---|
| 711 | |
---|
| 712 | MPI_Bcast(tag_label, 2, MPI_INT_STD, local_leader, local_comm); |
---|
| 713 | |
---|
| 714 | |
---|
| 715 | |
---|
| 716 | |
---|
| 717 | #pragma omp critical (read_from_tag_list) |
---|
| 718 | { |
---|
| 719 | bool found = false; |
---|
| 720 | while(!found) |
---|
| 721 | { |
---|
| 722 | for(std::list<std::pair < std::pair<int,int>, MPI_Comm* > >::iterator iter = tag_list.begin(); iter!=tag_list.end(); iter++) |
---|
| 723 | { |
---|
| 724 | if((*iter).first == make_pair(tag_label[0], tag_label[1])) |
---|
| 725 | { |
---|
| 726 | *newintercomm = iter->second[my_position]; |
---|
| 727 | found = true; |
---|
| 728 | break; |
---|
| 729 | } |
---|
| 730 | } |
---|
| 731 | } |
---|
| 732 | } |
---|
| 733 | |
---|
| 734 | |
---|
| 735 | |
---|
| 736 | int intercomm_ep_rank, intercomm_ep_rank_loc, intercomm_mpi_rank; |
---|
| 737 | int intercomm_ep_size, intercomm_num_ep, intercomm_mpi_size; |
---|
| 738 | |
---|
| 739 | intercomm_ep_rank = newintercomm->ep_comm_ptr->size_rank_info[0].first; |
---|
| 740 | intercomm_ep_rank_loc = newintercomm->ep_comm_ptr->size_rank_info[1].first; |
---|
| 741 | intercomm_mpi_rank = newintercomm->ep_comm_ptr->size_rank_info[2].first; |
---|
| 742 | intercomm_ep_size = newintercomm->ep_comm_ptr->size_rank_info[0].second; |
---|
| 743 | intercomm_num_ep = newintercomm->ep_comm_ptr->size_rank_info[1].second; |
---|
| 744 | intercomm_mpi_size = newintercomm->ep_comm_ptr->size_rank_info[2].second; |
---|
| 745 | |
---|
| 746 | |
---|
| 747 | |
---|
| 748 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map = new RANK_MAP; |
---|
| 749 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map = new RANK_MAP; |
---|
| 750 | (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->resize(local_num_ep); |
---|
| 751 | (*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->resize(remote_num_ep); |
---|
| 752 | |
---|
| 753 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[0] = local_comm.ep_comm_ptr->size_rank_info[0]; |
---|
| 754 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[1] = local_comm.ep_comm_ptr->size_rank_info[1]; |
---|
| 755 | (*newintercomm).ep_comm_ptr->intercomm->size_rank_info[2] = local_comm.ep_comm_ptr->size_rank_info[2]; |
---|
| 756 | |
---|
| 757 | |
---|
| 758 | |
---|
| 759 | int local_rank_map_ele[2]; |
---|
| 760 | local_rank_map_ele[0] = intercomm_ep_rank; |
---|
| 761 | local_rank_map_ele[1] = (*newintercomm).ep_comm_ptr->comm_label; |
---|
| 762 | |
---|
| 763 | MPI_Allgather(local_rank_map_ele, 2, MPI_INT_STD, (*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2, MPI_INT_STD, local_comm); |
---|
| 764 | |
---|
| 765 | if(ep_rank == local_leader) |
---|
| 766 | { |
---|
| 767 | MPI_Status status; |
---|
| 768 | MPI_Request req_s, req_r; |
---|
| 769 | |
---|
| 770 | MPI_Isend((*newintercomm).ep_comm_ptr->intercomm->local_rank_map->data(), 2*local_num_ep, MPI_INT_STD, remote_leader, tag, peer_comm, &req_s); |
---|
| 771 | MPI_Irecv((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_num_ep, MPI_INT_STD, remote_leader, tag, peer_comm, &req_r); |
---|
| 772 | |
---|
| 773 | |
---|
| 774 | MPI_Wait(&req_s, &status); |
---|
| 775 | MPI_Wait(&req_r, &status); |
---|
| 776 | |
---|
| 777 | } |
---|
| 778 | |
---|
| 779 | MPI_Bcast((*newintercomm).ep_comm_ptr->intercomm->remote_rank_map->data(), 2*remote_num_ep, MPI_INT_STD, local_leader, local_comm); |
---|
| 780 | (*newintercomm).ep_comm_ptr->intercomm->local_comm = &(local_comm.ep_comm_ptr->comm_list[ep_rank_loc]); |
---|
| 781 | (*newintercomm).ep_comm_ptr->intercomm->intercomm_tag = tag; |
---|
| 782 | |
---|
| 783 | |
---|
| 784 | return MPI_SUCCESS; |
---|
| 785 | } |
---|
| 786 | |
---|
| 787 | |
---|
| 788 | } |
---|