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pack_kernel.f90
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!Crown PCOPYright 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 PCOPY of the GNU General Public License along with
! CloverLeaf. If not, see http://www.gnu.org/licenses/.
!> @brief Fortran mpi buffer packing kernel
!> @author Wayne Gaudin
!> @details Packs/unpacks mpi send and receive buffers
! Notes
! All the 1d indices need updateing to 3d
MODULE pack_kernel_module
CONTAINS
SUBROUTINE clover_pack_message_left(x_min,x_max,y_min,y_max,z_min,z_max,field, &
left_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: left_snd_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Pack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(left_snd_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=1,depth
index=buffer_offset + (j+(k+depth-1)*depth) + ((l+depth-1)*(y_max+y_inc+2*depth)*depth)
left_snd_buffer(index)=field(x_min+x_inc-1+j,k,l)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC UPDATE HOST (left_snd_buffer)
!$ACC END DATA
END SUBROUTINE clover_pack_message_left
SUBROUTINE clover_unpack_message_left(x_min,x_max,y_min,y_max,z_min,z_max,field, &
left_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: left_rcv_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Unpack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(left_rcv_buffer)
!$ACC UPDATE DEVICE (left_rcv_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=1,depth
index=buffer_offset + (j+(k+depth-1)*depth) + ((l+depth-1)*(y_max+y_inc+2*depth)*depth)
field(x_min-j,k,l)=left_rcv_buffer(index)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC END DATA
END SUBROUTINE clover_unpack_message_left
SUBROUTINE clover_pack_message_right(x_min,x_max,y_min,y_max,z_min,z_max,field, &
right_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: right_snd_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Pack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(right_snd_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=1,depth
index=buffer_offset + (j+(k+depth-1)*depth) + ((l+depth-1)*(y_max+y_inc+2*depth)*depth)
right_snd_buffer(index)=field(x_max+1-j,k,l)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC UPDATE HOST (right_snd_buffer)
!$ACC END DATA
END SUBROUTINE clover_pack_message_right
SUBROUTINE clover_unpack_message_right(x_min,x_max,y_min,y_max,z_min,z_max,field, &
right_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: right_rcv_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Unpack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(right_rcv_buffer)
!$ACC UPDATE DEVICE (right_rcv_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=1,depth
index=buffer_offset + (j+(k+depth-1)*depth) + ((l+depth-1)*(y_max+y_inc+2*depth)*depth)
field(x_max+x_inc+j,k,l)=right_rcv_buffer(index)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC END DATA
END SUBROUTINE clover_unpack_message_right
SUBROUTINE clover_pack_message_top(x_min,x_max,y_min,y_max,z_min,z_max,field, &
top_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: top_snd_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Pack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(top_snd_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO k=1,depth
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (l-1+depth)*(x_max+x_inc+2*depth) + (k-1)*((x_max+x_inc+2*depth)*(z_max+z_inc+2*depth))
top_snd_buffer(index)=field(j,y_max+1-k,l)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC UPDATE HOST (top_snd_buffer)
!$ACC END DATA
END SUBROUTINE clover_pack_message_top
SUBROUTINE clover_unpack_message_top(x_min,x_max,y_min,y_max,z_min,z_max,field, &
top_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: top_rcv_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Unpack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(top_rcv_buffer)
!$ACC UPDATE DEVICE (top_rcv_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO k=1,depth
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (l-1+depth)*(x_max+x_inc+2*depth) + (k-1)*((x_max+x_inc+2*depth)*(z_max+z_inc+2*depth))
field(j,y_max+y_inc+k,l)=top_rcv_buffer(index)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC END DATA
END SUBROUTINE clover_unpack_message_top
SUBROUTINE clover_pack_message_bottom(x_min,x_max,y_min,y_max,z_min,z_max,field, &
bottom_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: bottom_snd_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Pack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(bottom_snd_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO k=1,depth
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (l-1+depth)*(x_max+x_inc+2*depth) + (k-1)*((x_max+x_inc+2*depth)*(z_max+z_inc+2*depth))
bottom_snd_buffer(index)=field(j,y_min+y_inc-1+k,l)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC UPDATE HOST (bottom_snd_buffer)
!$ACC END DATA
END SUBROUTINE clover_pack_message_bottom
SUBROUTINE clover_unpack_message_bottom(x_min,x_max,y_min,y_max,z_min,z_max,field, &
bottom_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: bottom_rcv_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Unpack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(bottom_rcv_buffer)
!$ACC UPDATE DEVICE (bottom_rcv_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO k=1,depth
!$ACC LOOP INDEPENDENT
DO l=z_min-depth,z_max+z_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (l-1+depth)*(x_max+x_inc+2*depth) + (k-1)*((x_max+x_inc+2*depth)*(z_max+z_inc+2*depth))
field(j,y_min-k,l)=bottom_rcv_buffer(index)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC END DATA
END SUBROUTINE clover_unpack_message_bottom
SUBROUTINE clover_pack_message_back(x_min,x_max,y_min,y_max,z_min,z_max,field, &
back_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: back_snd_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Pack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(back_snd_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=1,depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (k-1+depth)*(x_max+x_inc+2*depth) + (l-1)*((x_max+x_inc+2*depth)*(y_max+y_inc+2*depth))
back_snd_buffer(index)=field(j,k,z_min+z_inc-1+l)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC UPDATE HOST (back_snd_buffer)
!$ACC END DATA
END SUBROUTINE clover_pack_message_back
SUBROUTINE clover_unpack_message_back(x_min,x_max,y_min,y_max,z_min,z_max,field, &
back_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: back_rcv_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Unpack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(back_rcv_buffer)
!$ACC UPDATE DEVICE (back_rcv_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=1,depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (k-1+depth)*(x_max+x_inc+2*depth) + (l-1)*((x_max+x_inc+2*depth)*(y_max+y_inc+2*depth))
field(j,k,z_min-l)=back_rcv_buffer(index)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC END DATA
END SUBROUTINE clover_unpack_message_back
SUBROUTINE clover_pack_message_front(x_min,x_max,y_min,y_max,z_min,z_max,field, &
front_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: front_snd_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Pack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(front_snd_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=1,depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (k-1+depth)*(x_max+x_inc+2*depth) + (l-1)*((x_max+x_inc+2*depth)*(y_max+y_inc+2*depth))
front_snd_buffer(index)=field(j,k,z_max+1-l)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC UPDATE HOST (front_snd_buffer)
!$ACC END DATA
END SUBROUTINE clover_pack_message_front
SUBROUTINE clover_unpack_message_front(x_min,x_max,y_min,y_max,z_min,z_max,field, &
front_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA, &
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-1:,-1:,-1:) ! This seems to work for any type of mesh data
REAL(KIND=8) :: front_rcv_buffer(:)
INTEGER :: CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,Z_FACE_DATA
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max,z_min,z_max
INTEGER :: j,k,l,x_inc,y_inc,z_inc,index,buffer_offset
! Unpack
! These array modifications still need to be added on, plus the donor data location changes as in update_halo
IF(field_type.EQ.CELL_DATA) THEN
x_inc=0
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
z_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
z_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
z_inc=0
ENDIF
IF(field_type.EQ.Z_FACE_DATA) THEN
x_inc=0
y_inc=0
z_inc=1
ENDIF
!$ACC DATA &
!$ACC PCOPY(field)&
!$ACC PCOPY(front_rcv_buffer)
!$ACC UPDATE DEVICE (front_rcv_buffer)
!$ACC KERNELS
!$ACC LOOP INDEPENDENT
DO l=1,depth
!$ACC LOOP INDEPENDENT
DO k=y_min-depth,y_max+y_inc+depth
!$ACC LOOP INDEPENDENT
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + (j+depth) + (k-1+depth)*(x_max+x_inc+2*depth) + ((l-1)*(x_max+x_inc+2*depth)*(y_max+y_inc+2*depth))
field(j,k,z_max+z_inc+l)=front_rcv_buffer(index)
ENDDO
ENDDO
ENDDO
!$ACC END KERNELS
!$ACC END DATA
END SUBROUTINE clover_unpack_message_front
END MODULE pack_kernel_module