[1381] | 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 | #include "ep_mpi.hpp" |
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| 13 | |
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| 14 | using namespace std; |
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| 15 | |
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| 16 | extern std::list< ep_lib::MPI_Request* > * EP_PendingRequests; |
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| 17 | #pragma omp threadprivate(EP_PendingRequests) |
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| 18 | |
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| 19 | namespace ep_lib |
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| 20 | { |
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| 21 | |
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| 22 | |
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| 23 | int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Status *status) |
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| 24 | { |
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| 25 | |
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| 26 | if(!comm.is_ep) |
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| 27 | { |
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| 28 | ::MPI_Status mpi_status; |
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| 29 | ::MPI_Recv(buf, count, to_mpi_type(datatype), src<0? MPI_ANY_SOURCE : src, tag<0? MPI_ANY_TAG: tag, to_mpi_comm(comm.mpi_comm), &mpi_status); |
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| 30 | |
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| 31 | status->ep_src = src; |
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| 32 | status->ep_tag = tag; |
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| 33 | status->ep_datatype = datatype; |
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| 34 | |
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| 35 | return 0; |
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| 36 | } |
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| 37 | |
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| 38 | Message_Check(comm); |
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| 39 | |
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| 40 | MPI_Request request; |
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| 41 | MPI_Irecv(buf, count, datatype, src, tag, comm, &request); |
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| 42 | MPI_Wait(&request, status); |
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| 43 | |
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| 44 | return 0; |
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| 45 | } |
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| 46 | |
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| 47 | |
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| 48 | |
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| 49 | |
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| 50 | int MPI_Irecv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Request *request) |
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| 51 | { |
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| 52 | |
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| 53 | Debug("MPI_Irecv with EP"); |
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| 54 | int dest_rank; |
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| 55 | MPI_Comm_rank(comm, &dest_rank); |
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| 56 | |
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| 57 | |
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| 58 | if(!comm.is_ep) |
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| 59 | { |
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| 60 | ::MPI_Request mpi_request; |
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| 61 | ::MPI_Irecv(buf, count, to_mpi_type(datatype), src<0? MPI_ANY_SOURCE : src, tag<0? MPI_ANY_TAG: tag, to_mpi_comm(comm.mpi_comm), &mpi_request); |
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| 62 | |
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| 63 | request->mpi_request = new ::MPI_Request(mpi_request); |
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| 64 | request->ep_src = src; |
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| 65 | request->ep_datatype = datatype; |
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| 66 | request->ep_tag = tag; |
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| 67 | } |
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| 68 | |
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| 69 | request->buf = buf; |
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| 70 | request->comm = comm; |
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| 71 | request->type = 2; |
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| 72 | |
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| 73 | request->ep_src = src; |
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| 74 | request->ep_tag = tag; |
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| 75 | request->ep_datatype = datatype; |
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| 76 | |
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| 77 | |
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| 78 | |
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| 79 | /* With Improbe*/ |
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| 80 | Message_Check(comm); |
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| 81 | |
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| 82 | if(EP_PendingRequests == 0 ) |
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| 83 | { |
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| 84 | EP_PendingRequests = new std::list< MPI_Request* >; |
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| 85 | } |
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| 86 | |
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| 87 | |
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| 88 | EP_PendingRequests->push_back(request); |
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| 89 | |
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| 90 | |
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| 91 | Request_Check(); |
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| 92 | |
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| 93 | return 0; |
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| 94 | } |
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| 95 | |
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| 96 | int MPI_Imrecv(void *buf, int count, MPI_Datatype datatype, MPI_Message *message, MPI_Request *request) |
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| 97 | { |
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| 98 | Debug("MPI_Imrecv"); |
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| 99 | |
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| 100 | request->type = 3; |
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| 101 | |
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| 102 | ::MPI_Request mpi_request; |
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| 103 | ::MPI_Imrecv(buf, count, to_mpi_type(datatype), static_cast< ::MPI_Message* >(message->mpi_message), &mpi_request); |
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| 104 | |
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| 105 | request->mpi_request = new ::MPI_Request(mpi_request); |
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| 106 | request->ep_datatype = datatype; |
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| 107 | request->ep_tag = message->ep_tag; |
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| 108 | request->ep_src = message->ep_src; |
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| 109 | |
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| 110 | delete message->mpi_message; |
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| 111 | |
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| 112 | return 0; |
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| 113 | } |
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| 114 | |
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| 115 | |
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| 116 | int MPI_Mrecv(void *buf, int count, MPI_Datatype datatype, MPI_Message *message, MPI_Status *status) |
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| 117 | { |
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| 118 | Debug("EP Mrecv called\n"); |
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| 119 | |
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| 120 | ::MPI_Status mpi_status; |
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| 121 | ::MPI_Mrecv(buf, count, to_mpi_type(datatype), static_cast< ::MPI_Message* >(message->mpi_message), &mpi_status); |
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| 122 | |
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| 123 | status->mpi_status = new ::MPI_Status(mpi_status); |
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| 124 | status->ep_src = message->ep_src; |
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| 125 | status->ep_datatype = datatype; |
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| 126 | status->ep_tag = message->ep_tag; |
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| 127 | |
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| 128 | delete message->mpi_message; |
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| 129 | |
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| 130 | //check_sum_recv(buf, count, datatype, message->ep_src, message->ep_tag); |
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| 131 | |
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| 132 | return 0; |
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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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| 138 | |
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