1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
PROGRAM coproc
#ifdef USE_CATALYST
use CoProcessor ! ParaView Catalyst adaptor
#endif
use SparseMatrix ! contains initialize() and finalize()
use PoissonDiscretization ! contains fillmatrixandrhs()
use ConjugateGradient ! contains solve()
use Box ! contains getownedbox()
implicit none
include 'mpif.h'
integer :: numtasks,rank,ierr,allocatestatus
integer :: dimensions(3), ownedbox(6)
type(SparseMatrixData) :: sm
real(kind=8), DIMENSION(:), allocatable :: x, rhs
call mpi_init(ierr)
call mpi_comm_size(MPI_COMM_WORLD, numtasks, ierr)
call mpi_comm_rank(MPI_COMM_WORLD, rank, ierr)
#ifdef USE_CATALYST
call initializecoprocessor()
#endif
dimensions(1) = 10
dimensions(2) = 10
dimensions(3) = 10
! given a piece between 1 and numtasks, compute the nodes that
! are owned by this process (ownedbox)
call getownedbox(rank+1, numtasks, dimensions, ownedbox)
call initialize(sm, ownedbox, dimensions)
! each process has a full copy of the solution and the RHS to keep things simple
allocate(x(dimensions(1)*dimensions(2)*dimensions(3)), rhs(dimensions(1)*dimensions(2)*dimensions(3)), STAT = allocatestatus)
if (allocatestatus /= 0) STOP "*** FEDriver.F90: Not enough memory for arrays ***"
call fillmatrixandrhs(sm, rhs, ownedbox, dimensions)
call solve(dimensions, sm, x, rhs)
#ifdef USE_CATALYST
call finalizecoprocessor()
#endif
deallocate(x, rhs)
call finalize(sm)
call mpi_finalize(ierr)
write(*,*) 'Finished on rank', rank, 'of', numtasks
end program coproc
|
