rhs_maker_cpu.f90

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module rhs_maker_cpu
  use rhs_maker, only : rhs_maker_bdf_t, rhs_maker_ext_t, rhs_maker_sumab_t, &
                        rhs_maker_oifs_t
  use field_series, only : field_series_t
  use field, only : field_t
  use num_types, only : rp, c_rp
  use scratch_registry, only : neko_scratch_registry
  implicit none
  private
 
  type, public, extends(rhs_maker_sumab_t) :: rhs_maker_sumab_cpu_t
   contains
     procedure, nopass :: compute_fluid => rhs_maker_sumab_cpu
  end type rhs_maker_sumab_cpu_t
 
  type, public, extends(rhs_maker_ext_t) ::  rhs_maker_ext_cpu_t
   contains
     procedure, nopass :: compute_fluid => rhs_maker_ext_cpu
     procedure, nopass :: compute_scalar => scalar_rhs_maker_ext_cpu
  end type rhs_maker_ext_cpu_t
 
  type, public, extends(rhs_maker_bdf_t) :: rhs_maker_bdf_cpu_t
   contains
     procedure, nopass :: compute_fluid => rhs_maker_bdf_cpu
     procedure, nopass :: compute_scalar => scalar_rhs_maker_bdf_cpu
  end type rhs_maker_bdf_cpu_t
 
  type, public, extends(rhs_maker_oifs_t) :: rhs_maker_oifs_cpu_t
   contains
     procedure, nopass :: compute_fluid => rhs_maker_oifs_cpu
     procedure, nopass :: compute_scalar => scalar_rhs_maker_oifs_cpu
  end type rhs_maker_oifs_cpu_t
 
contains
 
  subroutine rhs_maker_sumab_cpu(u, v, w, uu, vv, ww, uulag, vvlag, wwlag, &
                                 ab, nab)
    type(field_t), intent(inout) :: u,v, w
    type(field_t), intent(inout) :: uu, vv, ww
    type(field_series_t), intent(inout) :: uulag, vvlag, wwlag
    real(kind=rp), dimension(3), intent(in) :: ab
    integer, intent(in) :: nab
    integer :: i, n
 
    n = uu%dof%size()
 
    do concurrent(i = 1:n)
       u%x(i,1,1,1) = ab(1) * uu%x(i,1,1,1) + ab(2) * uulag%lf(1)%x(i,1,1,1)
       v%x(i,1,1,1) = ab(1) * vv%x(i,1,1,1) + ab(2) * vvlag%lf(1)%x(i,1,1,1)
       w%x(i,1,1,1) = ab(1) * ww%x(i,1,1,1) + ab(2) * wwlag%lf(1)%x(i,1,1,1)
    end do
 
    if (nab .eq. 3) then
       do concurrent(i = 1:n)
          u%x(i,1,1,1) = u%x(i,1,1,1) + ab(3) * uulag%lf(2)%x(i,1,1,1)
          v%x(i,1,1,1) = v%x(i,1,1,1) + ab(3) * vvlag%lf(2)%x(i,1,1,1)
          w%x(i,1,1,1) = w%x(i,1,1,1) + ab(3) * wwlag%lf(2)%x(i,1,1,1)
       end do
    end if
 
  end subroutine rhs_maker_sumab_cpu
 
  subroutine rhs_maker_ext_cpu(fx_lag, fy_lag, fz_lag, &
                             fx_laglag, fy_laglag, fz_laglag, fx, fy, fz, &
                             rho, ext_coeffs, n)
    type(field_t), intent(inout) :: fx_lag, fy_lag, fz_lag
    type(field_t), intent(inout) :: fx_laglag, fy_laglag, fz_laglag
    real(kind=rp), intent(inout) :: rho, ext_coeffs(4)
    integer, intent(in) :: n
    real(kind=rp), intent(inout) :: fx(n), fy(n), fz(n)
    integer :: i
    type(field_t), pointer :: temp1, temp2, temp3
    integer :: temp_indices(3)
 
    call neko_scratch_registry%request_field(temp1, temp_indices(1))
    call neko_scratch_registry%request_field(temp2, temp_indices(2))
    call neko_scratch_registry%request_field(temp3, temp_indices(3))
 
    do concurrent(i = 1:n)
       temp1%x(i,1,1,1) = ext_coeffs(2) * fx_lag%x(i,1,1,1) + &
                          ext_coeffs(3) * fx_laglag%x(i,1,1,1)
       temp2%x(i,1,1,1) = ext_coeffs(2) * fy_lag%x(i,1,1,1) + &
                          ext_coeffs(3) * fy_laglag%x(i,1,1,1)
       temp3%x(i,1,1,1) = ext_coeffs(2) * fz_lag%x(i,1,1,1) + &
                          ext_coeffs(3) * fz_laglag%x(i,1,1,1)
    end do
 
    do concurrent(i = 1:n)
       fx_laglag%x(i,1,1,1) = fx_lag%x(i,1,1,1)
       fy_laglag%x(i,1,1,1) = fy_lag%x(i,1,1,1)
       fz_laglag%x(i,1,1,1) = fz_lag%x(i,1,1,1)
       fx_lag%x(i,1,1,1) = fx(i)
       fy_lag%x(i,1,1,1) = fy(i)
       fz_lag%x(i,1,1,1) = fz(i)
    end do
 
    do concurrent(i = 1:n)
       fx(i) = (ext_coeffs(1) * fx(i) + temp1%x(i,1,1,1)) * rho
       fy(i) = (ext_coeffs(1) * fy(i) + temp2%x(i,1,1,1)) * rho
       fz(i) = (ext_coeffs(1) * fz(i) + temp3%x(i,1,1,1)) * rho
    end do
 
    call neko_scratch_registry%relinquish_field(temp_indices)
 
  end subroutine rhs_maker_ext_cpu
 
  subroutine scalar_rhs_maker_ext_cpu(fs_lag, fs_laglag, fs, rho, &
                                      ext_coeffs, n)
    type(field_t), intent(inout) :: fs_lag
    type(field_t), intent(inout) :: fs_laglag
    real(kind=rp), intent(inout) :: rho, ext_coeffs(4)
    integer, intent(in) :: n
    real(kind=rp), intent(inout) :: fs(n)
    integer :: i
    type(field_t), pointer :: temp1
    integer :: temp_index
 
    call neko_scratch_registry%request_field(temp1, temp_index)
 
    do concurrent(i = 1:n)
       temp1%x(i,1,1,1) = ext_coeffs(2) * fs_lag%x(i,1,1,1) + &
                          ext_coeffs(3) * fs_laglag%x(i,1,1,1)
    end do
 
    do concurrent(i = 1:n)
       fs_laglag%x(i,1,1,1) = fs_lag%x(i,1,1,1)
       fs_lag%x(i,1,1,1) = fs(i)
    end do
 
    do concurrent(i = 1:n)
       fs(i) = (ext_coeffs(1) * fs(i) + temp1%x(i,1,1,1)) * rho
    end do
 
    call neko_scratch_registry%relinquish_field(temp_index)
  end subroutine scalar_rhs_maker_ext_cpu
 
  subroutine rhs_maker_bdf_cpu(ulag, vlag, wlag, bfx, bfy, bfz, &
                               u, v, w, B, rho, dt, bd, nbd, n)
    integer, intent(in) :: n, nbd
    type(field_t), intent(in) :: u, v, w
    type(field_series_t), intent(in) :: ulag, vlag, wlag
    real(kind=rp), intent(inout) :: bfx(n), bfy(n), bfz(n)
    real(kind=rp), intent(in) :: b(n)
    real(kind=rp), intent(in) :: dt, rho, bd(4)
    type(field_t), pointer :: tb1, tb2, tb3
    type(field_t), pointer :: ta1, ta2, ta3
    integer :: temp_indices(6)
    integer :: i, ilag
 
    call neko_scratch_registry%request_field(ta1, temp_indices(1))
    call neko_scratch_registry%request_field(ta2, temp_indices(2))
    call neko_scratch_registry%request_field(ta3, temp_indices(3))
    call neko_scratch_registry%request_field(tb1, temp_indices(4))
    call neko_scratch_registry%request_field(tb2, temp_indices(5))
    call neko_scratch_registry%request_field(tb3, temp_indices(6))
 
    do concurrent(i = 1:n)
       tb1%x(i,1,1,1) = u%x(i,1,1,1) * b(i) * bd(2)
       tb2%x(i,1,1,1) = v%x(i,1,1,1) * b(i) * bd(2)
       tb3%x(i,1,1,1) = w%x(i,1,1,1) * b(i) * bd(2)
    end do
 
    do ilag = 2, nbd
       do concurrent(i = 1:n)
          ta1%x(i,1,1,1) = ulag%lf(ilag-1)%x(i,1,1,1) * b(i) * bd(ilag+1)
          ta2%x(i,1,1,1) = vlag%lf(ilag-1)%x(i,1,1,1) * b(i) * bd(ilag+1)
          ta3%x(i,1,1,1) = wlag%lf(ilag-1)%x(i,1,1,1) * b(i) * bd(ilag+1)
       end do
 
       do concurrent(i = 1:n)
          tb1%x(i,1,1,1) = tb1%x(i,1,1,1) + ta1%x(i,1,1,1)
          tb2%x(i,1,1,1) = tb2%x(i,1,1,1) + ta2%x(i,1,1,1)
          tb3%x(i,1,1,1) = tb3%x(i,1,1,1) + ta3%x(i,1,1,1)
       end do
    end do
 
    do concurrent(i = 1:n)
       bfx(i) = bfx(i) + tb1%x(i,1,1,1) * (rho / dt)
       bfy(i) = bfy(i) + tb2%x(i,1,1,1) * (rho / dt)
       bfz(i) = bfz(i) + tb3%x(i,1,1,1) * (rho / dt)
    end do
 
    call neko_scratch_registry%relinquish_field(temp_indices)
 
  end subroutine rhs_maker_bdf_cpu
 
  subroutine scalar_rhs_maker_bdf_cpu(s_lag, fs, s, B, rho, dt, bd, nbd, n)
    integer, intent(in) :: n, nbd
    type(field_t), intent(in) :: s
    type(field_series_t), intent(in) :: s_lag
    real(kind=rp), intent(inout) :: fs(n)
    real(kind=rp), intent(in) :: b(n)
    real(kind=rp), intent(in) :: dt, rho, bd(4)
    integer :: i, ilag
    type(field_t), pointer :: temp1, temp2
    integer :: temp_indices(2)
 
    call neko_scratch_registry%request_field(temp1, temp_indices(1))
    call neko_scratch_registry%request_field(temp2, temp_indices(2))
 
    do concurrent(i = 1:n)
       temp2%x(i,1,1,1) = s%x(i,1,1,1) * b(i) * bd(2)
    end do
 
    do ilag = 2, nbd
       do concurrent(i = 1:n)
          temp1%x(i,1,1,1) = s_lag%lf(ilag-1)%x(i,1,1,1) * b(i) * bd(ilag+1)
       end do
 
       do concurrent(i = 1:n)
          temp2%x(i,1,1,1) = temp2%x(i,1,1,1) + temp1%x(i,1,1,1)
       end do
    end do
 
    do concurrent(i = 1:n)
       fs(i) = fs(i) + temp2%x(i,1,1,1) * (rho / dt)
    end do
 
    call neko_scratch_registry%relinquish_field(temp_indices)
  end subroutine scalar_rhs_maker_bdf_cpu
 
  subroutine rhs_maker_oifs_cpu(phi_x, phi_y, phi_z, bf_x, bf_y, bf_z, &
                                rho, dt, n)
    real(kind=rp), intent(in) :: rho, dt
    integer, intent(in) :: n
    real(kind=rp), intent(inout) :: bf_x(n), bf_y(n), bf_z(n)
    real(kind=rp), intent(inout) :: phi_x(n), phi_y(n), phi_z(n)
    integer :: i
 
    do concurrent(i = 1:n)
       bf_x(i) = bf_x(i) + phi_x(i) * (rho / dt)
       bf_y(i) = bf_y(i) + phi_y(i) * (rho / dt)
       bf_z(i) = bf_z(i) + phi_z(i) * (rho / dt)
    end do
 
  end subroutine rhs_maker_oifs_cpu
 
  subroutine scalar_rhs_maker_oifs_cpu(phi_s, bf_s, rho, dt, n)
    real(kind=rp), intent(in) :: rho, dt
    integer, intent(in) :: n
    real(kind=rp), intent(inout) :: bf_s(n)
    real(kind=rp), intent(inout) :: phi_s(n)
    integer :: i
 
    do concurrent(i = 1:n)
       bf_s(i) = bf_s(i) + phi_s(i) * (rho / dt)
    end do
 
  end subroutine scalar_rhs_maker_oifs_cpu
 
end module rhs_maker_cpu