objective.f90

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module objective
  use base_functional, only: base_functional_t
  use simulation_m, only: simulation_t
  use design, only: design_t
  use num_types, only: rp
  use point_zone_registry, only: neko_point_zone_registry
  use json_module, only: json_file
  implicit none
  private
 
  public :: objective_t, objective_factory, objective_wrapper_t
 
  type, abstract, extends(base_functional_t) :: objective_t
     real(kind=rp) :: weight = 1.0_rp
 
   contains
 
     procedure, pass(this) :: init_base => objective_init_base
     procedure, pass(this) :: free_base => objective_free_base
     procedure, pass(this) :: get_weight => objective_get_weight
 
  end type objective_t
 
  type :: objective_wrapper_t
     class(objective_t), allocatable :: objective
   contains
     procedure, pass(this) :: free => objective_wrapper_free
  end type objective_wrapper_t
 
  ! -------------------------------------------------------------------------- !
  ! Explicit interfaces
 
  interface
     module subroutine objective_factory(object, json, design, simulation)
       class(objective_t), allocatable, intent(inout) :: object
       type(json_file), intent(inout) :: json
       class(design_t), intent(in) :: design
       type(simulation_t), target, optional, intent(inout) :: simulation
     end subroutine objective_factory
  end interface
 
contains
 
  ! -------------------------------------------------------------------------- !
  ! Implementations for the base class
 
  subroutine objective_init_base(this, name, design_size, weight, mask_name)
    class(objective_t), intent(inout) :: this
    character(len=*), intent(in) :: name
    integer, intent(in) :: design_size
    real(kind=rp), intent(in) :: weight
    character(len=*), intent(in), optional :: mask_name
 
    this%name = name
    this%value = 0.0_rp
    call this%sensitivity%init(design_size)
 
    this%weight = weight
 
    this%has_mask = .false.
    if (trim(mask_name) .ne. "") then
       this%has_mask = .true.
       this%mask => neko_point_zone_registry%get_point_zone(mask_name)
    end if
 
  end subroutine objective_init_base
 
  subroutine objective_free_base(this)
    class(objective_t), target, intent(inout) :: this
 
    this%value = 0.0_rp
    call this%sensitivity%free()
    this%weight = 1.0_rp
    this%has_mask = .false.
    if (associated(this%mask)) nullify(this%mask)
 
  end subroutine objective_free_base
 
  ! -------------------------------------------------------------------------- !
  ! Implementations for the wrapper
 
  subroutine objective_wrapper_free(this)
    class(objective_wrapper_t), intent(inout) :: this
    if (allocated(this%objective)) then
       call this%objective%free()
       deallocate(this%objective)
    end if
  end subroutine objective_wrapper_free
 
  pure function objective_get_weight(this) result(w)
    class(objective_t), intent(in) :: this
    real(kind=rp) :: w
    w = this%weight
  end function objective_get_weight
 
end module objective