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71 lines
2.6 KiB
Fortran
71 lines
2.6 KiB
Fortran
module Helpers
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implicit none
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contains
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subroutine Read_dataset(filename, &
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cycle_id, &
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dim, &
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n_updates, &
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S, &
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S_inv, &
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Updates_index, &
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Updates)
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use, intrinsic :: iso_c_binding, only : c_int, c_double
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implicit none
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character (len = *), intent(in) :: filename
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integer, intent(inout) :: cycle_id, dim, n_updates
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integer(c_int), allocatable, intent(inout) :: Updates_index(:)
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real(c_double), allocatable, intent(inout) :: S(:,:), S_inv(:,:)
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real(c_double), allocatable, intent(inout) :: Updates(:,:)
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integer :: i, j
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character (len = 32) :: ignore
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!! Start reading dataset from file
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open(unit = 1000, file = filename)
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read(1000,*)
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read(1000,*) ignore, cycle_id
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read(1000,*) ignore, dim
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read(1000,*) ignore,n_updates
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!! Initialise the arrays
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allocate(Updates_index(n_updates), &
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S(dim,dim), &
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S_inv(dim,dim), &
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Updates(dim,n_updates))
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!! Read S and S_inv
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read(1000,*)
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do i=1,dim
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do j=1,dim
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!! For some reason S_inv needs to be read transposed &
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! for S*S_inv to give the identity matrix
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read(1000,*) ignore, ignore, S(i,j), S_inv(j,i)
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end do
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end do
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!! Read Updates and Updates_index
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do j=1,n_updates
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read(1000,*) ignore, Updates_index(j)
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do i=1,dim
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read(1000,*) ignore, Updates(i,j)
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end do
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end do
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!! End of reading the dataset from file
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close(1000)
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end subroutine Read_dataset
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subroutine Transpose(S_inv, S_inv_transpose, dim)
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use, intrinsic :: iso_c_binding, only : c_int, c_double
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implicit none
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integer, intent(in) :: dim
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real(c_double), allocatable, intent(in) :: S_inv(:,:)
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real(c_double), allocatable, intent(inout) :: S_inv_transpose(:,:)
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integer :: i, j
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do i=1,dim
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do j=1,dim
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S_inv_transpose(i,j) = S_inv(j,i)
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end do
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end do
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end subroutine Transpose
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end module Helpers |