[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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[1196] | 15 | extern std::list< ep_lib::MPI_Request* > * EP_PendingRequests; |
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| 16 | #pragma omp threadprivate(EP_PendingRequests) |
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[1134] | 17 | |
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[1147] | 18 | namespace ep_lib |
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| 19 | { |
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[1185] | 20 | |
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[1134] | 21 | |
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[1147] | 22 | int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Status *status) |
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| 23 | { |
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[1134] | 24 | int dest_rank; |
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| 25 | MPI_Comm_rank(comm, &dest_rank); |
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| 26 | |
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| 27 | if(!comm.is_ep) |
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| 28 | { |
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| 29 | ::MPI_Comm mpi_comm = static_cast< ::MPI_Comm >(comm.mpi_comm); |
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| 30 | ::MPI_Status mpi_status; |
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| 31 | ::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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| 32 | |
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| 33 | status->ep_src = src; |
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| 34 | status->ep_tag = tag; |
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| 35 | status->ep_datatype = datatype; |
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| 36 | |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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| 40 | Message_Check(comm); |
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| 41 | |
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| 42 | MPI_Request request; |
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| 43 | MPI_Irecv(buf, count, datatype, src, tag, comm, &request); |
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| 44 | MPI_Wait(&request, status); |
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| 45 | |
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| 46 | return 0; |
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[1147] | 47 | } |
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[1134] | 48 | |
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| 49 | |
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| 50 | |
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| 51 | |
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[1147] | 52 | int MPI_Irecv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Request *request) |
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| 53 | { |
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[1134] | 54 | |
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[1147] | 55 | Debug("MPI_Irecv with EP"); |
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[1134] | 56 | int dest_rank; |
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| 57 | MPI_Comm_rank(comm, &dest_rank); |
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[1196] | 58 | int world_rank; |
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| 59 | MPI_Comm_rank(MPI_COMM_WORLD_STD, &world_rank); |
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[1134] | 60 | |
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[1147] | 61 | if(!comm.is_ep) |
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| 62 | { |
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| 63 | ::MPI_Request mpi_request; |
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| 64 | ::MPI_Comm mpi_comm = static_cast< ::MPI_Comm > (comm.mpi_comm); |
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| 65 | ::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] | 66 | |
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[1147] | 67 | request->mpi_request = mpi_request; |
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[1134] | 68 | request->ep_src = src; |
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| 69 | request->ep_datatype = datatype; |
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| 70 | request->ep_tag = tag; |
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[1147] | 71 | } |
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[1134] | 72 | |
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[1147] | 73 | request->mpi_request = MPI_REQUEST_NULL_STD; |
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| 74 | request->buf = buf; |
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[1134] | 75 | request->comm = comm; |
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[1147] | 76 | request->type = 2; |
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[1134] | 77 | |
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[1147] | 78 | request->ep_src = src; |
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[1134] | 79 | request->ep_tag = tag; |
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| 80 | request->ep_datatype = datatype; |
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| 81 | |
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[1187] | 82 | |
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| 83 | |
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[1147] | 84 | /* With Improbe*/ |
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| 85 | Message_Check(comm); |
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[1134] | 86 | |
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[1187] | 87 | if(EP_PendingRequests == 0 ) |
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| 88 | { |
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[1196] | 89 | EP_PendingRequests = new std::list< MPI_Request* >; |
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| 90 | //printf("proc %d(%d) : EP_PendingRequests allocated, add = %p\n", dest_rank, world_rank, EP_PendingRequests); |
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[1187] | 91 | } |
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| 92 | |
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[1196] | 93 | |
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[1185] | 94 | EP_PendingRequests->push_back(request); |
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[1196] | 95 | |
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| 96 | Request_Check(); |
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| 97 | //printf("proc %d(%d) : EP_PendingRequests insert one request, src = %d(%d), tag = %d(%d), size = %d; request add = %p\n", |
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| 98 | // dest_rank, world_rank, EP_PendingRequests->back()->ep_src, request->ep_src, |
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| 99 | // EP_PendingRequests->back()->ep_tag, request->ep_tag, |
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| 100 | // EP_PendingRequests->size(), request); |
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[1185] | 101 | |
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[1196] | 102 | // check all EP_PendingRequests |
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| 103 | //for(std::list<MPI_Request* >::iterator it = EP_PendingRequests->begin(); it!=EP_PendingRequests->end(); ) |
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| 104 | //{ |
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| 105 | //if((*it)->type == 3) |
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| 106 | //{ |
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| 107 | // EP_PendingRequests->erase(it); |
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| 108 | // it = EP_PendingRequests->begin(); |
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| 109 | // continue; |
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| 110 | // } |
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[1185] | 111 | |
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[1196] | 112 | //int probed = false; |
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| 113 | //MPI_Message pending_message; |
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| 114 | //MPI_Status pending_status; |
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[1185] | 115 | |
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[1196] | 116 | //MPI_Improbe((*it)->ep_src, (*it)->ep_tag, (*it)->comm, &probed, &pending_message, &pending_status); |
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[1185] | 117 | |
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[1196] | 118 | //if(probed) |
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| 119 | //{ |
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| 120 | //int count; |
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| 121 | //MPI_Get_count(&pending_status, (*it)->ep_datatype, &count); |
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| 122 | //MPI_Imrecv((*it)->buf, count, (*it)->ep_datatype, &pending_message, *it); |
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[1187] | 123 | |
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[1196] | 124 | //EP_PendingRequests->erase(it); |
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| 125 | //if(EP_PendingRequests->empty()) return 0; |
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| 126 | |
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| 127 | //it = EP_PendingRequests->begin(); |
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| 128 | //continue; |
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| 129 | // } |
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| 130 | |
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| 131 | //it++; |
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| 132 | // } |
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[1134] | 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 | int MPI_Imrecv(void *buf, int count, MPI_Datatype datatype, MPI_Message *message, MPI_Request *request) |
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| 138 | { |
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| 139 | Debug("MPI_Imrecv"); |
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[1134] | 140 | |
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[1147] | 141 | request->type = 3; |
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[1134] | 142 | |
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| 143 | ::MPI_Request mpi_request; |
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| 144 | ::MPI_Message mpi_message = static_cast< ::MPI_Message >(message->mpi_message); |
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| 145 | |
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[1147] | 146 | ::MPI_Imrecv(buf, count, static_cast< ::MPI_Datatype>(datatype), &mpi_message, &mpi_request); |
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[1134] | 147 | |
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| 148 | request->mpi_request = mpi_request; |
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| 149 | request->ep_datatype = datatype; |
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| 150 | request->ep_tag = message->ep_tag; |
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| 151 | request->ep_src = message->ep_src; |
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| 152 | |
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| 153 | return 0; |
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[1147] | 154 | } |
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[1134] | 155 | |
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| 156 | |
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| 157 | int MPI_Mrecv(void *buf, int count, MPI_Datatype datatype, MPI_Message *message, MPI_Status *status) |
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[1147] | 158 | { |
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[1134] | 159 | Debug("EP Mrecv called\n"); |
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| 160 | |
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| 161 | ::MPI_Status mpi_status; |
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| 162 | ::MPI_Message mpi_message = static_cast< ::MPI_Message >(message->mpi_message); |
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[1147] | 163 | |
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| 164 | ::MPI_Mrecv(buf, count, static_cast< ::MPI_Datatype>(datatype), &mpi_message, &mpi_status); |
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[1134] | 165 | |
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| 166 | status->mpi_status = new ::MPI_Status(mpi_status); |
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| 167 | status->ep_src = message->ep_src; |
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| 168 | status->ep_datatype = datatype; |
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| 169 | status->ep_tag = message->ep_tag; |
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| 170 | |
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| 171 | //check_sum_recv(buf, count, datatype, message->ep_src, message->ep_tag); |
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| 172 | |
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| 173 | return 0; |
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[1147] | 174 | } |
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[1134] | 175 | |
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[1147] | 176 | } |
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[1134] | 177 | |
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| 178 | |
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[1196] | 179 | |
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