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update_halo.f90
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update_halo.f90
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!Crown Copyright 2012 AWE.
!
! This file is part of CloverLeaf.
!
! CloverLeaf is free software: you can redistribute it and/or modify it under
! the terms of the GNU General Public License as published by the
! Free Software Foundation, either version 3 of the License, or (at your option)
! any later version.
!
! CloverLeaf is distributed in the hope that it will be useful, but
! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
! FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
! details.
!
! You should have received a copy of the GNU General Public License along with
! CloverLeaf. If not, see http://www.gnu.org/licenses/.
!> @brief Driver for the halo updates
!> @author Wayne Gaudin
!> @details Invokes the kernels for the internal and external halo cells for
!> the fields specified.
MODULE update_halo_module
CONTAINS
SUBROUTINE update_halo(fields,depth)
USE clover_module
USE update_halo_kernel_module
IMPLICIT NONE
INTEGER :: c,fields(NUM_FIELDS),depth
CALL clover_exchange(fields,depth)
DO c=1,number_of_chunks
IF(chunks(c)%task.EQ.parallel%task) THEN
IF(use_fortran_kernels)THEN
CALL update_halo_kernel(chunks(c)%field%x_min, &
chunks(c)%field%x_max, &
chunks(c)%field%y_min, &
chunks(c)%field%y_max, &
chunks(c)%field%left, &
chunks(c)%field%bottom, &
chunks(c)%field%right, &
chunks(c)%field%top, &
chunks(c)%field%left_boundary, &
chunks(c)%field%bottom_boundary,&
chunks(c)%field%right_boundary, &
chunks(c)%field%top_boundary, &
chunks(c)%chunk_neighbours, &
chunks(c)%field%density0, &
chunks(c)%field%energy0, &
chunks(c)%field%pressure, &
chunks(c)%field%viscosity, &
chunks(c)%field%soundspeed, &
chunks(c)%field%density1, &
chunks(c)%field%energy1, &
chunks(c)%field%xvel0, &
chunks(c)%field%yvel0, &
chunks(c)%field%xvel1, &
chunks(c)%field%yvel1, &
chunks(c)%field%vol_flux_x, &
chunks(c)%field%vol_flux_y, &
chunks(c)%field%mass_flux_x, &
chunks(c)%field%mass_flux_y, &
fields, &
depth )
ELSEIF(use_cuda_kernels)THEN
CALL update_halo_kernel_cuda(chunks(c)%chunk_neighbours, &
fields, &
depth )
ELSEIF(use_C_kernels)THEN
CALL update_halo_kernel_c(chunks(c)%field%x_min, &
chunks(c)%field%x_max, &
chunks(c)%field%y_min, &
chunks(c)%field%y_max, &
chunks(c)%field%left, &
chunks(c)%field%bottom, &
chunks(c)%field%right, &
chunks(c)%field%top, &
chunks(c)%field%left_boundary, &
chunks(c)%field%bottom_boundary,&
chunks(c)%field%right_boundary, &
chunks(c)%field%top_boundary, &
chunks(c)%chunk_neighbours, &
chunks(c)%field%density0, &
chunks(c)%field%energy0, &
chunks(c)%field%pressure, &
chunks(c)%field%viscosity, &
chunks(c)%field%soundspeed, &
chunks(c)%field%density1, &
chunks(c)%field%energy1, &
chunks(c)%field%xvel0, &
chunks(c)%field%yvel0, &
chunks(c)%field%xvel1, &
chunks(c)%field%yvel1, &
chunks(c)%field%vol_flux_x, &
chunks(c)%field%vol_flux_y, &
chunks(c)%field%mass_flux_x, &
chunks(c)%field%mass_flux_y, &
fields, &
depth )
ENDIF
ENDIF
ENDDO
END SUBROUTINE update_halo
END MODULE update_halo_module