device_vreman_nut.F90

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module device_vreman_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
  
  implicit none
  private
 
#ifdef HAVE_HIP
  interface
     subroutine hip_vreman_nut_compute(a11_d, a12_d, a13_d, &
                                      a21_d, a22_d, a23_d, &
                                      a31_d, a32_d, a33_d, &
                                      delta_d, nut_d, mult_d, c, eps, n) &
          bind(c, name = 'hip_vreman_nut_compute')
       use, intrinsic :: iso_c_binding, only: c_ptr, c_int
       import c_rp
       type(c_ptr), value :: a11_d, a12_d, a13_d, &
                             a21_d, a22_d, a23_d, &
                             a31_d, a32_d, a33_d, &
                             delta_d, nut_d, mult_d
       integer(c_int) :: n
       real(c_rp) :: c, eps
     end subroutine hip_vreman_nut_compute
  end interface
#elif HAVE_CUDA
  interface
     subroutine cuda_vreman_nut_compute(a11_d, a12_d, a13_d, &
                                      a21_d, a22_d, a23_d, &
                                      a31_d, a32_d, a33_d, &
                                      delta_d, nut_d, mult_d, c, eps, n) &
          bind(c, name = 'cuda_vreman_nut_compute')
       use, intrinsic :: iso_c_binding, only: c_ptr, c_int
       import c_rp
       type(c_ptr), value :: a11_d, a12_d, a13_d, &
                             a21_d, a22_d, a23_d, &
                             a31_d, a32_d, a33_d, &
                             delta_d, nut_d, mult_d
       integer(c_int) :: n
       real(c_rp) :: c, eps
     end subroutine cuda_vreman_nut_compute
  end interface
#elif HAVE_OPENCL
#endif
 
  public :: device_vreman_nut_compute
 
contains
 
  subroutine device_vreman_nut_compute(a11_d, a12_d, a13_d, &
                              a21_d, a22_d, a23_d, &
                              a31_d, a32_d, a33_d, &
                              delta_d, nut_d, mult_d, c, eps, n)
    type(c_ptr) :: a11_d, a12_d, a13_d, &
                   a21_d, a22_d, a23_d, &
                   a31_d, a32_d, a33_d, &
                   delta_d, nut_d, mult_d
    integer :: n
    real(kind=rp) :: c, eps
#if HAVE_HIP
    call hip_vreman_nut_compute(a11_d, a12_d, a13_d, &
                              a21_d, a22_d, a23_d, &
                              a31_d, a32_d, a33_d, &
                              delta_d, nut_d, mult_d, c, eps, n)
#elif HAVE_CUDA
    call cuda_vreman_nut_compute(a11_d, a12_d, a13_d, &
                              a21_d, a22_d, a23_d, &
                              a31_d, a32_d, a33_d, &
                              delta_d, nut_d, mult_d, c, eps, n)
#elif HAVE_OPENCL
    call neko_error('opencl backend is not supported for device_vreman_nut')
#else
    call neko_error('no device backend configured')
#endif
  end subroutine device_vreman_nut_compute
 
  
end module device_vreman_nut