[1134] | 1 | /*! |
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[1138] | 2 | \file ep_wait.cpp |
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| 3 | \since 2 may 2016 |
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[1134] | 4 | |
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[1138] | 5 | \brief Definitions of MPI wait function: MPI_Wait, MPI_Waitall, MPI_Waitsome, MPI_Waitany |
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| 6 | */ |
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[1134] | 7 | |
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| 8 | #include "ep_lib.hpp" |
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| 9 | #include <mpi.h> |
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| 10 | #include "ep_declaration.hpp" |
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| 11 | |
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| 12 | using namespace std; |
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| 13 | |
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| 14 | |
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| 15 | |
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| 16 | namespace ep_lib { |
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| 17 | |
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[1138] | 18 | int MPI_Wait(MPI_Request *request, MPI_Status *status) |
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[1134] | 19 | { |
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| 20 | |
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[1138] | 21 | if(request->type == 1) |
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| 22 | { |
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| 23 | ::MPI_Request mpi_request = static_cast< ::MPI_Request >(request->mpi_request); |
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| 24 | ::MPI_Status mpi_status; |
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| 25 | ::MPI_Wait(&mpi_request, &mpi_status); |
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[1134] | 26 | |
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| 27 | |
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| 28 | |
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[1138] | 29 | status->mpi_status = &mpi_status; |
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| 30 | status->ep_src = request->ep_src; |
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| 31 | status->ep_tag = request->ep_tag; |
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| 32 | status->ep_datatype = request->ep_datatype; |
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[1134] | 33 | |
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[1138] | 34 | return 0; |
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| 35 | } |
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[1134] | 36 | |
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[1138] | 37 | if(request->type == 2) |
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| 38 | { |
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| 39 | int flag = false; |
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| 40 | MPI_Message message; |
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[1134] | 41 | |
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[1138] | 42 | while(!flag) |
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| 43 | { |
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| 44 | Message_Check(request->comm); |
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| 45 | #pragma omp flush |
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| 46 | MPI_Improbe(request->ep_src, request->ep_tag, request->comm, &flag, &message, status); |
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| 47 | } |
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[1134] | 48 | |
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[1138] | 49 | int count; |
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| 50 | MPI_Get_count(status, request->ep_datatype, &count); |
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| 51 | MPI_Mrecv(request->buf, count, request->ep_datatype, &message, status); |
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| 52 | status->ep_datatype = request->ep_datatype; |
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[1134] | 53 | |
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[1138] | 54 | //check_sum_recv(request->buf, count, request->ep_datatype, request->ep_src, request->ep_tag, request->comm, 2); |
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[1134] | 55 | |
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[1138] | 56 | return 0; |
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| 57 | } |
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| 58 | |
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| 59 | if(request->type == 3) |
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| 60 | { |
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| 61 | ::MPI_Request mpi_request = static_cast< ::MPI_Request >(request->mpi_request); |
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| 62 | ::MPI_Status mpi_status; |
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| 63 | ::MPI_Wait(&mpi_request, &mpi_status); |
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| 64 | |
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| 65 | status->mpi_status = new ::MPI_Status(mpi_status); |
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| 66 | status->ep_src = request->ep_src; |
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| 67 | status->ep_tag = request->ep_tag; |
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| 68 | status->ep_datatype = request->ep_datatype; |
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| 69 | |
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| 70 | //int count; |
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| 71 | //MPI_Get_count(status, request->ep_datatype, &count); |
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| 72 | //check_sum_recv(request->buf, count, request->ep_datatype, request->ep_src, request->ep_tag, request->comm, 2); |
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| 73 | } |
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| 74 | return MPI_SUCCESS; |
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[1134] | 75 | } |
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| 76 | |
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| 77 | |
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| 78 | |
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| 79 | |
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| 80 | |
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| 81 | |
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[1138] | 82 | int MPI_Waitall(int count, MPI_Request *array_of_requests, MPI_Status *array_of_statuses) |
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[1134] | 83 | { |
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[1138] | 84 | int dest_rank; |
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| 85 | MPI_Comm_rank(MPI_COMM_WORLD, &dest_rank); |
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[1134] | 86 | |
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[1138] | 87 | int finished = 0; |
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[1146] | 88 | int finished_index[count]; |
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[1138] | 89 | |
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| 90 | for(int i=0; i<count; i++) |
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[1134] | 91 | { |
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[1138] | 92 | finished_index[i] = false; |
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| 93 | } |
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| 94 | |
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| 95 | while(finished < count) |
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| 96 | { |
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| 97 | for(int i=0; i<count; i++) |
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[1134] | 98 | { |
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[1146] | 99 | //MPI_Test(&array_of_requests[i], &finished_index[i], &array_of_statuses[i]); |
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[1138] | 100 | if(finished_index[i] == false) // this request has not been tested. |
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| 101 | { |
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| 102 | if(array_of_requests[i].type != 2) // isend or imrecv |
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| 103 | { |
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| 104 | MPI_Wait(&array_of_requests[i], &array_of_statuses[i]); |
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| 105 | finished++; |
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| 106 | finished_index[i] = true; |
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| 107 | } |
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| 108 | else // irecv |
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| 109 | { |
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| 110 | int flag = false; |
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| 111 | MPI_Message message; |
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[1134] | 112 | |
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[1138] | 113 | MPI_Improbe(array_of_requests[i].ep_src, array_of_requests[i].ep_tag, array_of_requests[i].comm, &flag, &message, &array_of_statuses[i]); |
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| 114 | |
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| 115 | if(flag) |
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| 116 | { |
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| 117 | //printf("dest_rank = %d, Waiting one message with src = %d, tag = %d, buf = %p\n", dest_rank, array_of_requests[i].ep_src, array_of_requests[i].ep_tag, array_of_requests[i].buf); |
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| 118 | int recv_count; |
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| 119 | MPI_Get_count(&array_of_statuses[i], array_of_requests[i].ep_datatype, &recv_count); |
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| 120 | MPI_Mrecv(array_of_requests[i].buf, recv_count, array_of_requests[i].ep_datatype, &message, &array_of_statuses[i]); |
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| 121 | //check_sum_recv(array_of_requests[i].buf, recv_count, array_of_requests[i].ep_datatype, array_of_requests[i].ep_src, array_of_requests[i].ep_tag, array_of_requests[i].comm, 2); |
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| 122 | |
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| 123 | finished++; |
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| 124 | finished_index[i] = true; |
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| 125 | } |
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| 126 | } |
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| 127 | } |
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| 128 | } |
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[1134] | 129 | } |
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[1138] | 130 | return MPI_SUCCESS; |
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[1134] | 131 | } |
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| 132 | |
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| 133 | |
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| 134 | |
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| 135 | |
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| 136 | |
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| 137 | } |
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