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49 lines
1.1 KiB
Fortran
49 lines
1.1 KiB
Fortran
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BEGIN_PROVIDER [ integer, mpi_bit_kind ]
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use bitmasks
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implicit none
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BEGIN_DOC
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! MPI bit kind type
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END_DOC
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IRP_IF MPI
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include 'mpif.h'
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if (bit_kind == 4) then
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mpi_bit_kind = MPI_INTEGER4
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else if (bit_kind == 8) then
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mpi_bit_kind = MPI_INTEGER8
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else
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stop 'Wrong bit kind in mpi_bit_kind'
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endif
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IRP_ELSE
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mpi_bit_kind = -1
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IRP_ENDIF
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END_PROVIDER
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subroutine broadcast_chunks_bit_kind(A, LDA)
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use bitmasks
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implicit none
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integer*8, intent(in) :: LDA
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integer(bit_kind), intent(inout) :: A(LDA)
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BEGIN_DOC
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! Broadcast with chunks of ~2GB
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END_DOC
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IRP_IF MPI_DEBUG
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print *, irp_here, mpi_rank
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call MPI_BARRIER(MPI_COMM_WORLD, ierr)
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IRP_ENDIF
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IRP_IF MPI
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include 'mpif.h'
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integer :: i, sze, ierr
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do i=1,LDA,200000000/bit_kind_size
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sze = min(LDA-i+1, 200000000/bit_kind_size)
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call MPI_BCAST (A(i), sze, MPI_BIT_KIND, 0, MPI_COMM_WORLD, ierr)
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if (ierr /= MPI_SUCCESS) then
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print *, irp_here//': Unable to broadcast chunks bit_kind', i
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stop -1
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endif
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enddo
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IRP_ENDIF
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end
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