[1134] | 1 | /*! |
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| 2 | \file ep_recv.cpp |
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| 3 | \since 2 may 2016 |
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| 4 | |
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| 5 | \brief Definitions of MPI receive functions: MPI_Recv, MPI_Mrecv, MPI_Irecv, MPI_Imrecv |
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| 6 | */ |
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| 7 | |
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| 8 | |
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| 9 | #include "ep_lib.hpp" |
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| 10 | #include <mpi.h> |
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| 11 | #include "ep_declaration.hpp" |
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| 12 | |
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| 13 | using namespace std; |
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| 14 | |
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| 15 | |
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[1147] | 16 | namespace ep_lib |
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| 17 | { |
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[1134] | 18 | |
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[1147] | 19 | int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Status *status) |
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| 20 | { |
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[1134] | 21 | int dest_rank; |
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| 22 | MPI_Comm_rank(comm, &dest_rank); |
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| 23 | |
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| 24 | if(!comm.is_ep) |
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| 25 | { |
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| 26 | ::MPI_Comm mpi_comm = static_cast< ::MPI_Comm >(comm.mpi_comm); |
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| 27 | ::MPI_Status mpi_status; |
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| 28 | ::MPI_Recv(buf, count, static_cast< ::MPI_Datatype >(datatype), src<0? MPI_ANY_SOURCE : src, tag<0? MPI_ANY_TAG: tag, mpi_comm, &mpi_status); |
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| 29 | |
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| 30 | status->ep_src = src; |
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| 31 | status->ep_tag = tag; |
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| 32 | status->ep_datatype = datatype; |
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| 33 | |
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| 34 | return 0; |
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| 35 | } |
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| 36 | |
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| 37 | Message_Check(comm); |
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| 38 | |
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| 39 | MPI_Request request; |
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| 40 | MPI_Irecv(buf, count, datatype, src, tag, comm, &request); |
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| 41 | MPI_Wait(&request, status); |
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| 42 | |
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| 43 | return 0; |
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[1147] | 44 | } |
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[1134] | 45 | |
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| 46 | |
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| 47 | |
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| 48 | |
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[1147] | 49 | int MPI_Irecv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Request *request) |
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| 50 | { |
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[1134] | 51 | |
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[1147] | 52 | Debug("MPI_Irecv with EP"); |
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[1134] | 53 | int dest_rank; |
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| 54 | MPI_Comm_rank(comm, &dest_rank); |
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| 55 | |
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[1147] | 56 | if(!comm.is_ep) |
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| 57 | { |
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| 58 | ::MPI_Request mpi_request; |
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| 59 | ::MPI_Comm mpi_comm = static_cast< ::MPI_Comm > (comm.mpi_comm); |
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| 60 | ::MPI_Irecv(buf, count, static_cast< ::MPI_Datatype> (datatype), src<0? MPI_ANY_SOURCE : src, tag<0? MPI_ANY_TAG: tag, mpi_comm, &mpi_request); |
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[1134] | 61 | |
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[1147] | 62 | request->mpi_request = mpi_request; |
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[1134] | 63 | request->ep_src = src; |
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| 64 | request->ep_datatype = datatype; |
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| 65 | request->ep_tag = tag; |
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[1147] | 66 | } |
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[1134] | 67 | |
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[1147] | 68 | Message_Check(comm); |
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[1134] | 69 | |
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| 70 | |
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[1147] | 71 | request->mpi_request = MPI_REQUEST_NULL_STD; |
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| 72 | request->buf = buf; |
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[1134] | 73 | request->comm = comm; |
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[1147] | 74 | request->type = 2; |
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[1134] | 75 | |
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[1147] | 76 | request->ep_src = src; |
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[1134] | 77 | request->ep_tag = tag; |
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| 78 | request->ep_datatype = datatype; |
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| 79 | |
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[1147] | 80 | /* With Improbe*/ |
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| 81 | Message_Check(comm); |
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[1134] | 82 | |
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| 83 | int flag = false; |
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| 84 | MPI_Message message; |
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| 85 | MPI_Status status; |
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| 86 | |
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| 87 | MPI_Improbe(src, tag, comm, &flag, &message, &status); |
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| 88 | |
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| 89 | if(flag) |
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| 90 | { |
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| 91 | MPI_Imrecv(buf, count, datatype, &message, request); |
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| 92 | } |
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| 93 | |
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| 94 | return 0; |
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[1147] | 95 | } |
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[1134] | 96 | |
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[1147] | 97 | int MPI_Imrecv(void *buf, int count, MPI_Datatype datatype, MPI_Message *message, MPI_Request *request) |
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| 98 | { |
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| 99 | Debug("MPI_Imrecv"); |
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[1134] | 100 | |
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[1147] | 101 | request->type = 3; |
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[1134] | 102 | |
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| 103 | ::MPI_Request mpi_request; |
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| 104 | ::MPI_Message mpi_message = static_cast< ::MPI_Message >(message->mpi_message); |
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| 105 | |
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[1147] | 106 | ::MPI_Imrecv(buf, count, static_cast< ::MPI_Datatype>(datatype), &mpi_message, &mpi_request); |
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[1134] | 107 | |
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| 108 | request->mpi_request = mpi_request; |
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| 109 | request->ep_datatype = datatype; |
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| 110 | request->ep_tag = message->ep_tag; |
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| 111 | request->ep_src = message->ep_src; |
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| 112 | request->buf = buf; |
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| 113 | |
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| 114 | return 0; |
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[1147] | 115 | } |
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[1134] | 116 | |
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| 117 | |
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| 118 | int MPI_Mrecv(void *buf, int count, MPI_Datatype datatype, MPI_Message *message, MPI_Status *status) |
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[1147] | 119 | { |
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[1134] | 120 | Debug("EP Mrecv called\n"); |
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| 121 | |
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| 122 | ::MPI_Status mpi_status; |
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| 123 | ::MPI_Message mpi_message = static_cast< ::MPI_Message >(message->mpi_message); |
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[1147] | 124 | |
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| 125 | ::MPI_Mrecv(buf, count, static_cast< ::MPI_Datatype>(datatype), &mpi_message, &mpi_status); |
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[1134] | 126 | |
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| 127 | status->mpi_status = new ::MPI_Status(mpi_status); |
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| 128 | status->ep_src = message->ep_src; |
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| 129 | status->ep_datatype = datatype; |
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| 130 | status->ep_tag = message->ep_tag; |
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| 131 | |
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| 132 | //check_sum_recv(buf, count, datatype, message->ep_src, message->ep_tag); |
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| 133 | |
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| 134 | return 0; |
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[1147] | 135 | } |
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[1134] | 136 | |
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[1147] | 137 | } |
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[1134] | 138 | |
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| 139 | |
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