set_field_kernel.f90

!Crown Copyright 2014 AWE.
!
! This file is part of TeaLeaf.
!
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! the terms of the GNU General Public License as published by the
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! any later version.
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!>  @brief Fortran set field kernel.
!>  @author David Beckingsale, Wayne Gaudin
!>  @details Copies all of the final start of step filed data to the end of
!>  step data.

MODULE set_field_kernel_module

CONTAINS

SUBROUTINE set_field_kernel(x_min,x_max,y_min,y_max,z_min, z_max,halo_exchange_depth,   &
                            energy0,                                                    &
                            energy1)

  IMPLICIT NONE

  INTEGER :: x_min,x_max,y_min,y_max,z_min,z_max,halo_exchange_depth
  REAL(KIND=8), DIMENSION(x_min-halo_exchange_depth:x_max+halo_exchange_depth,&
                          y_min-halo_exchange_depth:y_max+halo_exchange_depth,&
                          z_min-halo_exchange_depth:z_max+halo_exchange_depth) :: energy0,energy1

  INTEGER :: j,k,l

!$OMP PARALLEL
!$OMP DO
  DO l=z_min,z_max
    DO k=y_min,y_max
       DO j=x_min,x_max
         energy1(j,k,l)=energy0(j,k,l)
      ENDDO
    ENDDO
  ENDDO
!$OMP END DO
!$OMP END PARALLEL

END SUBROUTINE set_field_kernel

END MODULE set_field_kernel_module