module params_diffusion_model_m !! Parameters for diffusion model use precision_grillix_m, only : GP, GP_NAN use error_handling_grillix_m, only: handle_error use status_codes_grillix_m, only : GRILLIX_ERR_NAMELIST use screen_io_m, only : get_stdout implicit none real(GP), protected :: diffcoeff_perp = GP_NAN !! Perpendicular diffusion coefficent real(GP), protected :: diffcoeff_par = GP_NAN !! Parallel diffusion coefficent public :: read_params_model public :: write_params_model namelist / model / diffcoeff_perp, diffcoeff_par private model contains subroutine read_params_model(filename) !! Reads parameters related with diffusion model character(len=*), intent(in) :: filename !! Filename, to read from integer :: io_unit, io_error character(len=256) :: io_errmsg open(newunit=io_unit, file=filename, status='old', action='read', & iostat=io_error, iomsg=io_errmsg) if (io_error /= 0) then call handle_error(io_errmsg, GRILLIX_ERR_NAMELIST, & __LINE__, __FILE__) endif read(io_unit, nml=model, iostat=io_error, iomsg=io_errmsg) if (io_error /= 0) then call handle_error(io_errmsg, GRILLIX_ERR_NAMELIST, & __LINE__, __FILE__) endif close(io_unit) end subroutine subroutine write_params_model(filename) !! Reads parameters related with diffusion model character(len=*), intent(in), optional :: filename !! If present, filename where params are written to, !! if not present, writes to screen integer :: io_unit, io_error character(len=256) :: io_errmsg if (present(filename)) then open(newunit=io_unit, file=filename, status='unknown', & access='append', action='write', & iostat=io_error, iomsg=io_errmsg ) if (io_error /= 0) then call handle_error(io_errmsg, GRILLIX_ERR_NAMELIST, & __LINE__, __FILE__) endif else io_unit = get_stdout() endif write(io_unit, nml=model, iostat=io_error, iomsg=io_errmsg) if (io_error /= 0) then call handle_error(io_errmsg, GRILLIX_ERR_NAMELIST, & __LINE__, __FILE__) endif if (present(filename)) then close(io_unit) endif end subroutine end module