device_sigma_nut.F90

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module device_sigma_nut
  use, intrinsic :: iso_c_binding, only: c_ptr, c_int
  use num_types, only: rp, c_rp
  use utils, only: neko_error
  use comm, only: neko_comm, pe_size, mpi_real_precision
  use mpi_f08, only: mpi_sum, mpi_in_place, mpi_allreduce
 
  ! use cuda_sigma_nut
  implicit none
  private
 
#ifdef HAVE_HIP
  interface
     subroutine hip_sigma_nut_compute(g11_d, g12_d, g13_d, &
                                      g21_d, g22_d, g23_d, &
                                      g31_d, g32_d, g33_d, &
                                      delta_d, nut_d, mult_d, c, eps, n) &
          bind(c, name = 'hip_sigma_nut_compute')
       use, intrinsic :: iso_c_binding, only: c_ptr, c_int
       import c_rp
       type(c_ptr), value :: g11_d, g12_d, g13_d, &
                             g21_d, g22_d, g23_d, &
                             g31_d, g32_d, g33_d, &
                             delta_d, nut_d, mult_d
       integer(c_int) :: n
       real(c_rp) :: c, eps
     end subroutine hip_sigma_nut_compute
  end interface
#elif HAVE_CUDA
  interface
     subroutine cuda_sigma_nut_compute(g11_d, g12_d, g13_d, &
                                      g21_d, g22_d, g23_d, &
                                      g31_d, g32_d, g33_d, &
                                      delta_d, nut_d, mult_d, c, eps, n) &
          bind(c, name = 'cuda_sigma_nut_compute')
       use, intrinsic :: iso_c_binding, only: c_ptr, c_int
       import c_rp
       type(c_ptr), value :: g11_d, g12_d, g13_d, &
                             g21_d, g22_d, g23_d, &
                             g31_d, g32_d, g33_d, &
                             delta_d, nut_d, mult_d
       integer(c_int) :: n
       real(c_rp) :: c, eps
     end subroutine cuda_sigma_nut_compute
  end interface
#elif HAVE_OPENCL
#endif
 
  public :: device_sigma_nut_compute
 
contains
 
  subroutine device_sigma_nut_compute(g11_d, g12_d, g13_d, &
                              g21_d, g22_d, g23_d, &
                              g31_d, g32_d, g33_d, &
                              delta_d, nut_d, mult_d, c, eps, n)
    type(c_ptr) :: g11_d, g12_d, g13_d, &
                   g21_d, g22_d, g23_d, &
                   g31_d, g32_d, g33_d, &
                   delta_d, nut_d, mult_d
    integer :: n
    real(kind=rp) :: c, eps
#if HAVE_HIP
    call hip_sigma_nut_compute(g11_d, g12_d, g13_d, &
                              g21_d, g22_d, g23_d, &
                              g31_d, g32_d, g33_d, &
                              delta_d, nut_d, mult_d, c, eps, n)
#elif HAVE_CUDA
    call cuda_sigma_nut_compute(g11_d, g12_d, g13_d, &
                              g21_d, g22_d, g23_d, &
                              g31_d, g32_d, g33_d, &
                              delta_d, nut_d, mult_d, c, eps, n)
#elif HAVE_OPENCL
    call neko_error('opencl backend is not supported for device_sigma_nut')
#else
    call neko_error('no device backend configured')
#endif
  end subroutine device_sigma_nut_compute
 
  
end module device_sigma_nut