FrontISTR 5.2.0
Large-scale structural analysis program with finit element method
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hecmw_solver_SR_mmi.F90
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1!-------------------------------------------------------------------------------
2! Copyright (c) 2019 FrontISTR Commons
3! This software is released under the MIT License, see LICENSE.txt
4!-------------------------------------------------------------------------------
5
6!C
7!C***
8!C*** module hecmw_solver_SR_mmi
9!C***
10!C
12contains
13 !C
14 !C*** SOLVER_SEND_RECV
15 !C
17 & ( n, m, neibpetot, neibpe, &
18 & stack_import, nod_import, &
19 & stack_export, nod_export, ws, wr, x, &
20 & solver_comm,my_rank)
21
22 use hecmw_util
23 implicit real*8 (a-h,o-z)
24 ! include 'mpif.h'
25 ! include 'hecmw_config_f.h'
26
27 integer(kind=kint ) , intent(in) :: N, m
28 integer(kind=kint ) , intent(in) :: NEIBPETOT
29 integer(kind=kint ), pointer :: NEIBPE (:)
30 integer(kind=kint ), pointer :: STACK_IMPORT(:)
31 integer(kind=kint ), pointer :: NOD_IMPORT (:)
32 integer(kind=kint ), pointer :: STACK_EXPORT(:)
33 integer(kind=kint ), pointer :: NOD_EXPORT (:)
34 integer(kind=kint ), dimension(: ), intent(inout):: WS
35 integer(kind=kint ), dimension(: ), intent(inout):: WR
36 integer(kind=kint ), dimension(: ), intent(inout):: X
37 integer(kind=kint ) , intent(in) ::SOLVER_COMM
38 integer(kind=kint ) , intent(in) :: my_rank
39
40#ifndef HECMW_SERIAL
41 integer(kind=kint ), dimension(:,:), allocatable :: sta1
42 integer(kind=kint ), dimension(:,:), allocatable :: sta2
43 integer(kind=kint ), dimension(: ), allocatable :: req1
44 integer(kind=kint ), dimension(: ), allocatable :: req2
45
46 integer(kind=kint ), save :: NFLAG
47 data nflag/0/
48 ! local valiables
49 integer(kind=kint ) :: neib,istart,inum,k,ii,ierr,nreq1,nreq2
50 !C
51 !C-- INIT.
52 allocate (sta1(mpi_status_size,neibpetot))
53 allocate (sta2(mpi_status_size,neibpetot))
54 allocate (req1(neibpetot))
55 allocate (req2(neibpetot))
56
57 !C
58 !C-- SEND
59 nreq1=0
60 do neib= 1, neibpetot
61 istart= stack_export(neib-1)
62 inum = stack_export(neib ) - istart
63 if (inum==0) cycle
64 nreq1=nreq1+1
65 do k= istart+1, istart+inum
66 ii = m*nod_export(k)
67 do kk= 1, m
68 ws(m*k-kk+1)= x(ii-kk+1)
69 enddo
70 enddo
71
72 call mpi_isend (ws(m*istart+1), m*inum, mpi_integer, &
73 & neibpe(neib), 0, solver_comm, req1(nreq1), ierr)
74 enddo
75
76 !C
77 !C-- RECEIVE
78 nreq2=0
79 do neib= 1, neibpetot
80 istart= stack_import(neib-1)
81 inum = stack_import(neib ) - istart
82 if (inum==0) cycle
83 nreq2=nreq2+1
84 call mpi_irecv (wr(m*istart+1), m*inum, mpi_integer, &
85 & neibpe(neib), 0, solver_comm, req2(nreq2), ierr)
86 enddo
87
88 call mpi_waitall (nreq2, req2, sta2, ierr)
89
90 do neib= 1, neibpetot
91 istart= stack_import(neib-1)
92 inum = stack_import(neib ) - istart
93 do k= istart+1, istart+inum
94 ii = m*nod_import(k)
95 do kk= 1, m
96 x(ii-kk+1)= wr(m*k-kk+1)
97 enddo
98 enddo
99 enddo
100
101 call mpi_waitall (nreq1, req1, sta1, ierr)
102
103 deallocate (sta1, sta2, req1, req2)
104#endif
105 end subroutine hecmw_solve_send_recv_mmi
106end module hecmw_solver_sr_mmi
subroutine hecmw_solve_send_recv_mmi(n, m, neibpetot, neibpe, stack_import, nod_import, stack_export, nod_export, ws, wr, x, solver_comm, my_rank)
I/O and Utility.
Definition: hecmw_util_f.F90:7