72 lines
3.5 KiB
Fortran
72 lines
3.5 KiB
Fortran
! { dg-options "-O3 -fgraphite-identity -floop-interchange " }
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module mqc_m
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implicit none
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private
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public :: mutual_ind_quad_cir_coil
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integer, parameter, private :: longreal = selected_real_kind(15,90)
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real (kind = longreal), parameter, private :: pi = 3.141592653589793_longreal
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real (kind = longreal), parameter, private :: small = 1.0e-10_longreal
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contains
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subroutine mutual_ind_quad_cir_coil (r_coil, x_coil, y_coil, z_coil, h_coil, n_coil, &
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rotate_coil, m, mu, l12)
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real (kind = longreal), intent(in) :: r_coil, x_coil, y_coil, z_coil, h_coil, n_coil, &
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mu
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real (kind = longreal), dimension(:,:), intent(in) :: rotate_coil
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integer, intent(in) :: m
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real (kind = longreal), intent(out) :: l12
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real (kind = longreal), dimension(3,3) :: rotate_quad
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real (kind = longreal), dimension(9), save :: x2gauss, y2gauss, w2gauss, z1gauss, &
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w1gauss
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real (kind = longreal) :: xxvec, xyvec, xzvec, yxvec, yyvec, yzvec, zxvec, zyvec, &
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zzvec, magnitude, l12_lower, l12_upper, dx, dy, dz, theta, &
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a, b1, b2, numerator, denominator, coefficient, angle
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real (kind = longreal), dimension(3) :: c_vector, q_vector, rot_c_vector, &
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rot_q_vector, current_vector, &
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coil_current_vec, coil_tmp_vector
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integer :: i, j, k
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logical, save :: first = .true.
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do i = 1, 2*m
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theta = pi*real(i,longreal)/real(m,longreal)
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c_vector(1) = r_coil * cos(theta)
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c_vector(2) = r_coil * sin(theta)
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coil_tmp_vector(1) = -sin(theta)
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coil_tmp_vector(2) = cos(theta)
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coil_tmp_vector(3) = 0.0_longreal
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coil_current_vec(1) = dot_product(rotate_coil(1,:),coil_tmp_vector(:))
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coil_current_vec(2) = dot_product(rotate_coil(2,:),coil_tmp_vector(:))
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coil_current_vec(3) = dot_product(rotate_coil(3,:),coil_tmp_vector(:))
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do j = 1, 9
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c_vector(3) = 0.5 * h_coil * z1gauss(j)
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rot_c_vector(1) = dot_product(rotate_coil(1,:),c_vector(:)) + dx
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rot_c_vector(2) = dot_product(rotate_coil(2,:),c_vector(:)) + dy
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rot_c_vector(3) = dot_product(rotate_coil(3,:),c_vector(:)) + dz
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do k = 1, 9
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q_vector(1) = 0.5_longreal * a * (x2gauss(k) + 1.0_longreal)
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q_vector(2) = 0.5_longreal * b1 * (y2gauss(k) - 1.0_longreal)
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q_vector(3) = 0.0_longreal
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rot_q_vector(1) = dot_product(rotate_quad(1,:),q_vector(:))
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rot_q_vector(2) = dot_product(rotate_quad(2,:),q_vector(:))
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rot_q_vector(3) = dot_product(rotate_quad(3,:),q_vector(:))
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numerator = w1gauss(j) * w2gauss(k) * &
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dot_product(coil_current_vec,current_vector)
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denominator = sqrt(dot_product(rot_c_vector-rot_q_vector, &
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rot_c_vector-rot_q_vector))
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l12_lower = l12_lower + numerator/denominator
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end do
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end do
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end do
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l12 = coefficient * (b1 * l12_lower + b2 * l12_upper)
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end subroutine mutual_ind_quad_cir_coil
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end module mqc_m
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! { dg-final { cleanup-modules "mqc_m" } }
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