| ! RUN: %dragonegg -S %s -O3 -fplugin-arg-dragonegg-enable-gcc-optzns |
| ! PR12610 |
| |
| module solv_cap |
| integer, parameter, public :: dp = selected_real_kind(5) |
| real(kind=dp), private :: D1, D2 |
| integer, private, save :: Ng1=0, Ng2=0 |
| integer, private, pointer, dimension(:,:) :: Grid |
| contains |
| subroutine Preco(X) |
| real(kind=dp), intent(in out), dimension(0:,0:) :: X |
| complex(kind=dp), allocatable, dimension(:,:) :: t |
| real(kind=dp) :: K0, D |
| integer :: i, j, is, js |
| allocate( t(0:Ng1-1,0:Ng2-1) ) |
| t = X |
| call Fourir2D(t, 1) |
| K0 = 0.15_dp |
| do j=0,Ng2-1 |
| js = min(j, Ng2-j) |
| do i=0,Ng1-1 |
| is = min(i, Ng1-i) |
| D = sqrt( (K0+is**2)/(D1*Ng1)**2 + (K0+js**2)/(D2*Ng2)**2 ) |
| t(i,j) = t(i,j) * D |
| end do |
| end do |
| call Fourir2D(t, -1) |
| X = t(0:Ng1-1,0:Ng2-1) |
| where (Grid==0) |
| X = 0 |
| end where |
| deallocate( t ) |
| return |
| end subroutine Preco |
| end |
| program capacitance |
| end |
