ax_helm_svv_one_sided_device.F90

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module ax_helm_svv_one_sided_device
  use ax_helm_svv, only : ax_helm_svv_t
  use num_types, only : rp
  use coefs, only : coef_t
  use space, only : space_t
  use mesh, only : mesh_t
  use device_math, only : device_addcol4
  use device, only : device_get_ptr
  use utils, only : neko_error
  use, intrinsic :: iso_c_binding, only : c_ptr, c_int
  implicit none
  private
 
  type, public, extends(ax_helm_svv_t) :: ax_helm_svv_one_sided_device_t
   contains
     procedure, pass(this) :: compute => ax_helm_svv_one_sided_device_compute
  end type ax_helm_svv_one_sided_device_t
 
#ifdef HAVE_HIP
  interface
     subroutine hip_ax_helm_svv_one_sided(w_d, u_d, dx_d, dy_d, dz_d, h1_d, &
          drdx_d, drdy_d, drdz_d, dsdx_d, dsdy_d, dsdz_d, &
          dtdx_d, dtdy_d, dtdz_d, jacinv_d, w3_d, svv_h1_d, &
          filter_r_d, filter_s_d, filter_t_d, nelv, lx) &
          bind(c, name='hip_ax_helm_svv_one_sided')
       use, intrinsic :: iso_c_binding, only : c_ptr, c_int
       type(c_ptr), value :: w_d, u_d
       type(c_ptr), value :: dx_d, dy_d, dz_d, h1_d
       type(c_ptr), value :: drdx_d, drdy_d, drdz_d
       type(c_ptr), value :: dsdx_d, dsdy_d, dsdz_d
       type(c_ptr), value :: dtdx_d, dtdy_d, dtdz_d
       type(c_ptr), value :: jacinv_d, w3_d, svv_h1_d
       type(c_ptr), value :: filter_r_d, filter_s_d, filter_t_d
       integer(c_int) :: nelv, lx
     end subroutine hip_ax_helm_svv_one_sided
  end interface
#elif HAVE_CUDA
  interface
     subroutine cuda_ax_helm_svv_one_sided(w_d, u_d, dx_d, dy_d, dz_d, h1_d, &
          drdx_d, drdy_d, drdz_d, dsdx_d, dsdy_d, dsdz_d, &
          dtdx_d, dtdy_d, dtdz_d, jacinv_d, w3_d, svv_h1_d, &
          filter_r_d, filter_s_d, filter_t_d, nelv, lx) &
          bind(c, name='cuda_ax_helm_svv_one_sided')
       use, intrinsic :: iso_c_binding, only : c_ptr, c_int
       type(c_ptr), value :: w_d, u_d
       type(c_ptr), value :: dx_d, dy_d, dz_d, h1_d
       type(c_ptr), value :: drdx_d, drdy_d, drdz_d
       type(c_ptr), value :: dsdx_d, dsdy_d, dsdz_d
       type(c_ptr), value :: dtdx_d, dtdy_d, dtdz_d
       type(c_ptr), value :: jacinv_d, w3_d, svv_h1_d
       type(c_ptr), value :: filter_r_d, filter_s_d, filter_t_d
       integer(c_int) :: nelv, lx
     end subroutine cuda_ax_helm_svv_one_sided
  end interface
#endif
 
contains
 
  subroutine ax_helm_svv_one_sided_device_compute(this, w, u, coef, msh, Xh)
    class(ax_helm_svv_one_sided_device_t), intent(in) :: this
    type(mesh_t), intent(in) :: msh
    type(space_t), intent(in) :: Xh
    type(coef_t), intent(in) :: coef
    real(kind=rp), intent(inout) :: w(xh%lx, xh%ly, xh%lz, msh%nelv)
    real(kind=rp), intent(in) :: u(xh%lx, xh%ly, xh%lz, msh%nelv)
    type(c_ptr) :: u_d, w_d
    type(c_ptr) :: filter_r_d, filter_s_d, filter_t_d
 
    u_d = device_get_ptr(u)
    w_d = device_get_ptr(w)
 
    if (index(this%svv%direction, "r") > 0) then
       filter_r_d = this%svv%filter%fh_d
    else
       filter_r_d = this%svv%ident_d
    end if
 
    if (index(this%svv%direction, "s") > 0) then
       filter_s_d = this%svv%filter%fht_d
    else
       filter_s_d = this%svv%ident_d
    end if
 
    if (index(this%svv%direction, "t") > 0) then
       filter_t_d = this%svv%filter%fht_d
    else
       filter_t_d = this%svv%ident_d
    end if
 
#ifdef HAVE_HIP
    call hip_ax_helm_svv_one_sided(w_d, u_d, xh%dx_d, xh%dy_d, xh%dz_d, &
         coef%h1_d, coef%drdx_d, coef%drdy_d, coef%drdz_d, &
         coef%dsdx_d, coef%dsdy_d, coef%dsdz_d, &
         coef%dtdx_d, coef%dtdy_d, coef%dtdz_d, coef%jacinv_d, &
         xh%w3_d, this%svv%h1_d, filter_r_d, filter_s_d, filter_t_d, &
         msh%nelv, xh%lx)
#elif HAVE_CUDA
    call cuda_ax_helm_svv_one_sided(w_d, u_d, xh%dx_d, xh%dy_d, xh%dz_d, &
         coef%h1_d, coef%drdx_d, coef%drdy_d, coef%drdz_d, &
         coef%dsdx_d, coef%dsdy_d, coef%dsdz_d, &
         coef%dtdx_d, coef%dtdy_d, coef%dtdz_d, coef%jacinv_d, &
         xh%w3_d, this%svv%h1_d, filter_r_d, filter_s_d, filter_t_d, &
         msh%nelv, xh%lx)
#elif HAVE_OPENCL
    call neko_error('OPENCL is not implemented for SVV')
#elif HAVE_METAL
    call neko_error('Metal is not implemented for SVV')
#else
    call neko_error('No supported device backend is enabled for SVV')
#endif
 
    if (coef%ifh2) then
       call device_addcol4(w_d, coef%h2_d, coef%B_d, u_d, coef%dof%size())
    end if
 
  end subroutine ax_helm_svv_one_sided_device_compute
 
end module ax_helm_svv_one_sided_device