10
1
mirror of https://github.com/pfloos/quack synced 2024-12-26 14:23:38 +01:00
QuAcK/src/eDFT/allocate_grid.f90

59 lines
1.5 KiB
Fortran
Raw Normal View History

2020-03-31 12:39:26 +02:00
subroutine allocate_grid(nNuc,ZNuc,max_ang_mom,min_exponent,max_exponent, &
radial_precision,nAng,nGrid)
2020-03-25 10:39:45 +01:00
! Allocate quadrature grid with numgrid (Radovan Bast)
use numgrid
use, intrinsic :: iso_c_binding, only: c_ptr
implicit none
include 'parameters.h'
! Input variables
integer,intent(in) :: nNuc
double precision,intent(in) :: ZNuc(nNuc)
integer,intent(in) :: max_ang_mom(nNuc)
double precision,intent(in) :: min_exponent(nNuc,maxL+1)
double precision,intent(in) :: max_exponent(nNuc)
2020-03-25 11:25:48 +01:00
double precision :: radial_precision
integer,intent(in) :: nAng
2020-03-25 10:39:45 +01:00
! Local variables
integer :: iNuc
integer :: min_num_angular_points
integer :: max_num_angular_points
type(c_ptr) :: context
! Output variables
integer,intent(out) :: nGrid
! Set useful variables
2020-03-25 11:25:48 +01:00
min_num_angular_points = nAng
max_num_angular_points = nAng
2020-03-25 10:39:45 +01:00
! Get total number of grid points
nGrid = 0
do iNuc=1,nNuc
2020-03-25 12:56:28 +01:00
context = numgrid_new_atom_grid(radial_precision,min_num_angular_points,max_num_angular_points, &
int(ZNuc(iNuc)),max_exponent(iNuc),max_ang_mom(iNuc), &
min_exponent(iNuc,1:max_ang_mom(iNuc)+1))
2020-03-25 10:39:45 +01:00
nGrid = nGrid + numgrid_get_num_grid_points(context)
call numgrid_free_atom_grid(context)
end do
end subroutine allocate_grid