source: XIOS/dev/branch_openmp/extern/src_ep_dev/ep_wait.cpp @ 1220

Last change on this file since 1220 was 1220, checked in by yushan, 4 years ago

test_remap_omp tested on ADA except two fields

File size: 2.3 KB
Line 
1/*!
2  \file ep_wait.cpp
3  \since 2 may 2016
4
5  \brief Definitions of MPI wait function: MPI_Wait, MPI_Waitall, MPI_Waitsome, MPI_Waitany
6  */
7
8#include "ep_lib.hpp"
9#include <mpi.h>
10#include "ep_declaration.hpp"
11
12using namespace std;
13
14extern std::list< ep_lib::MPI_Request* > * EP_PendingRequests;
15#pragma omp threadprivate(EP_PendingRequests)
16
17
18
19namespace ep_lib
20{       
21 
22  int MPI_Wait(MPI_Request *request, MPI_Status *status)
23  {
24    if(request->type !=1 && request->type !=2 && request->type !=3) 
25    {
26      printf("Error in request type\n");
27 
28      exit(1);
29    }
30
31    while(request->type == 2) Request_Check();
32
33
34    ::MPI_Request mpi_request = static_cast< ::MPI_Request >(request->mpi_request);
35    ::MPI_Status mpi_status;
36    ::MPI_Wait(&mpi_request, &mpi_status);
37     
38    request->mpi_request = mpi_request;
39
40    status->mpi_status = &mpi_status;
41    status->ep_src = request->ep_src;
42    status->ep_tag = request->ep_tag;
43    status->ep_datatype = request->ep_datatype;
44
45    return MPI_SUCCESS;
46
47  }   /*end of mpi_wait*/
48
49
50
51
52
53
54  int MPI_Waitall(int count, MPI_Request *array_of_requests, MPI_Status *array_of_statuses)
55  {
56    std::vector<int> finished(count, 0);
57
58    ::MPI_Request* mpi_request = new ::MPI_Request[count];
59    ::MPI_Status* mpi_status = new ::MPI_Status[count];
60
61    while(std::accumulate(finished.begin(), finished.end(), 0) < count)
62    {
63     
64      for(int i=0; i<count; i++)
65      {
66        if(array_of_requests[i].type !=1 && array_of_requests[i].type !=2 && array_of_requests[i].type !=3) 
67        {
68          printf("Error in request type\n");
69 
70          exit(1);
71        }
72       
73        if(array_of_requests[i].type == 2) Request_Check(); 
74        if(array_of_requests[i].type != 2 && finished.at(i) == 0) 
75        {
76          finished.at(i) = 1;
77          mpi_request[i] = static_cast< ::MPI_Request >(array_of_requests[i].mpi_request);
78        }
79      }   
80    }
81
82    ::MPI_Waitall(count, mpi_request, mpi_status);
83
84    for(int i=0; i<count; i++)
85    {
86      array_of_statuses[i].mpi_status = &mpi_status;
87      array_of_statuses[i].ep_src = array_of_requests[i].ep_src;
88      array_of_statuses[i].ep_tag = array_of_requests[i].ep_tag;
89      array_of_statuses[i].ep_datatype = array_of_requests[i].ep_datatype;
90    }
91
92    delete[] mpi_request;
93    delete[] mpi_status;
94    return MPI_SUCCESS;
95  }  /* end of mpi_waitall*/
96
97
98}
99
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