simulation_component.f90

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module simulation_component
  use num_types, only : rp
  use json_module, only : json_file
  use case, only : case_t
  use time_based_controller, only : time_based_controller_t
  use json_utils, only : json_get_or_default, json_get
  implicit none
  private
 
  type, abstract, public :: simulation_component_t
     type(case_t), pointer :: case
     type(time_based_controller_t) :: preprocess_controller
     type(time_based_controller_t) :: compute_controller
     type(time_based_controller_t) :: output_controller
     integer :: order
   contains
     procedure, pass(this) :: init_base => simulation_component_init_base
     procedure, pass(this) :: free_base => simulation_component_free_base
     procedure, pass(this) :: restart => simulation_component_restart_wrapper
     procedure, pass(this) :: preprocess => &
       simulation_component_preprocess_wrapper
     procedure, pass(this) :: compute => simulation_component_compute_wrapper
     procedure(simulation_component_init), pass(this), deferred :: init
     procedure(simulation_component_free), pass(this), deferred :: free
     procedure, pass(this) :: preprocess_
     procedure, pass(this) :: compute_
     procedure, pass(this) :: restart_
  end type simulation_component_t
 
  type, public :: simulation_component_wrapper_t
     class(simulation_component_t), allocatable :: simcomp
  end type simulation_component_wrapper_t
 
 
  abstract interface
 
     subroutine simulation_component_init(this, json, case)
       import simulation_component_t, json_file, case_t
       class(simulation_component_t), intent(inout) :: this
       type(json_file), intent(inout) :: json
       class(case_t), intent(inout), target :: case
     end subroutine simulation_component_init
  end interface
 
  abstract interface
 
     subroutine simulation_component_free(this)
       import simulation_component_t
       class(simulation_component_t), intent(inout) :: this
     end subroutine simulation_component_free
  end interface
 
  interface
 
     module subroutine simulation_component_factory(object, json, case)
       class(simulation_component_t), allocatable, intent(inout) :: object
       type(json_file), intent(inout) :: json
       class(case_t), intent(inout), target :: case
     end subroutine simulation_component_factory
  end interface
 
  public :: simulation_component_factory
 
contains
  subroutine simulation_component_init_base(this, json, case)
    class(simulation_component_t), intent(inout) :: this
    type(json_file), intent(inout) :: json
    class(case_t), intent(inout), target :: case
    character(len=:), allocatable :: preprocess_control, compute_control, output_control
    real(kind=rp) :: preprocess_value, compute_value, output_value
    integer :: order
 
    this%case => case
 
    ! We default to preprocess every time-step
    call json_get_or_default(json, "preprocess_control", preprocess_control, &
                             "tsteps")
    call json_get_or_default(json, "preprocess_value", preprocess_value, 1.0_rp)
 
    ! We default to compute every time-step
    call json_get_or_default(json, "compute_control", compute_control, &
                             "tsteps")
    call json_get_or_default(json, "compute_value", compute_value, 1.0_rp)
 
    ! We default to output whenever we execute
    call json_get_or_default(json, "output_control", output_control, &
                             compute_control)
    call json_get_or_default(json, "output_value", output_value, &
                             compute_value)
 
 
    if (output_control == "global") then
       call json_get(this%case%params, 'case.fluid.output_control', &
                     output_control)
       call json_get(this%case%params, 'case.fluid.output_value', &
                     output_value)
    end if
 
    call json_get_or_default(json, "order", order, -1)
    this%order = order
 
    call this%preprocess_controller%init(case%end_time, preprocess_control, &
                                         preprocess_value)
    call this%compute_controller%init(case%end_time, compute_control, &
                                      compute_value)
    call this%output_controller%init(case%end_time, output_control, &
                                     output_value)
 
  end subroutine simulation_component_init_base
 
  subroutine simulation_component_free_base(this)
    class(simulation_component_t), intent(inout) :: this
 
    nullify(this%case)
  end subroutine simulation_component_free_base
 
  subroutine simulation_component_preprocess_wrapper(this, t, tstep)
    class(simulation_component_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
    integer, intent(in) :: tstep
 
    if (this%preprocess_controller%check(t, tstep)) then
       call this%preprocess_(t, tstep)
       call this%preprocess_controller%register_execution()
    end if
  end subroutine simulation_component_preprocess_wrapper
 
  subroutine simulation_component_compute_wrapper(this, t, tstep)
    class(simulation_component_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
    integer, intent(in) :: tstep
 
    if (this%compute_controller%check(t, tstep)) then
       call this%compute_(t, tstep)
       call this%compute_controller%register_execution()
    end if
  end subroutine simulation_component_compute_wrapper
 
  subroutine simulation_component_restart_wrapper(this, t)
    class(simulation_component_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
 
    call this%compute_controller%set_counter(t)
    call this%output_controller%set_counter(t)
    call this%restart_(t) 
 
  end subroutine simulation_component_restart_wrapper
 
  subroutine restart_(this, t)
    class(simulation_component_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
 
    ! Do nothing
  end subroutine restart_
 
  subroutine preprocess_(this, t, tstep)
    class(simulation_component_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
    integer, intent(in) :: tstep
 
    ! Do nothing
  end subroutine preprocess_
 
  subroutine compute_(this, t, tstep)
    class(simulation_component_t), intent(inout) :: this
    real(kind=rp), intent(in) :: t
    integer, intent(in) :: tstep
 
    ! Do nothing
  end subroutine compute_
end module simulation_component