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pack_kernel.f90
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pack_kernel.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 Fortran mpi buffer packing kernel
!> @author Wayne Gaudin
!> @details Packs/unpacks mpi send and receive buffers
MODULE pack_kernel_module
CONTAINS
SUBROUTINE clover_pack_message_left(x_min,x_max,y_min,y_max,field, &
left_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
!$OMP PARALLEL DO PRIVATE(index)
DO k=y_min-depth,y_max+y_inc+depth
DO j=1,depth
index= buffer_offset + j+(k+depth-1)*depth
left_snd_buffer(index)=field(x_min+x_inc-1+j,k)
ENDDO
ENDDO
!$OMP END PARALLEL DO
END SUBROUTINE clover_pack_message_left
SUBROUTINE clover_unpack_message_left(x_min,x_max,y_min,y_max,field, &
left_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
!$OMP PARALLEL DO PRIVATE(index)
DO k=y_min-depth,y_max+y_inc+depth
DO j=1,depth
index= buffer_offset + j+(k+depth-1)*depth
field(x_min-j,k)=left_rcv_buffer(index)
ENDDO
ENDDO
!$OMP END PARALLEL DO
END SUBROUTINE clover_unpack_message_left
SUBROUTINE clover_pack_message_right(x_min,x_max,y_min,y_max,field, &
right_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
!$OMP PARALLEL DO PRIVATE(index)
DO k=y_min-depth,y_max+y_inc+depth
DO j=1,depth
index= buffer_offset + j+(k+depth-1)*depth
right_snd_buffer(index)=field(x_max+1-j,k)
ENDDO
ENDDO
!$OMP END PARALLEL DO
END SUBROUTINE clover_pack_message_right
SUBROUTINE clover_unpack_message_right(x_min,x_max,y_min,y_max,field, &
right_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
!$OMP PARALLEL DO PRIVATE(index)
DO k=y_min-depth,y_max+y_inc+depth
DO j=1,depth
index= buffer_offset + j+(k+depth-1)*depth
field(x_max+x_inc+j,k)=right_rcv_buffer(index)
ENDDO
ENDDO
!$OMP END PARALLEL DO
END SUBROUTINE clover_unpack_message_right
SUBROUTINE clover_pack_message_top(x_min,x_max,y_min,y_max,field, &
top_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
DO k=1,depth
!$OMP PARALLEL DO PRIVATE(index)
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + k+(j+depth-1)*depth
top_snd_buffer(index)=field(j,y_max+1-k)
ENDDO
!$OMP END PARALLEL DO
ENDDO
END SUBROUTINE clover_pack_message_top
SUBROUTINE clover_unpack_message_top(x_min,x_max,y_min,y_max,field, &
top_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
DO k=1,depth
!$OMP PARALLEL DO PRIVATE(index)
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + k+(j+depth-1)*depth
!index= buffer_offset + j + depth+(k-1)*(x_max+x_inc+(2*depth))
field(j,y_max+y_inc+k)=top_rcv_buffer(index)
ENDDO
!$OMP END PARALLEL DO
ENDDO
END SUBROUTINE clover_unpack_message_top
SUBROUTINE clover_pack_message_bottom(x_min,x_max,y_min,y_max,field, &
bottom_snd_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
DO k=1,depth
!$OMP PARALLEL DO PRIVATE(index)
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + k+(j+depth-1)*depth
!index= buffer_offset + j+depth+(k-1)*(x_max+x_inc+(2*depth))
bottom_snd_buffer(index)=field(j,y_min+y_inc-1+k)
ENDDO
!$OMP END PARALLEL DO
ENDDO
END SUBROUTINE clover_pack_message_bottom
SUBROUTINE clover_unpack_message_bottom(x_min,x_max,y_min,y_max,field, &
bottom_rcv_buffer, &
CELL_DATA,VERTEX_DATA,X_FACE_DATA,Y_FACE_DATA,&
depth,field_type, &
buffer_offset)
IMPLICIT NONE
REAL(KIND=8) :: field(-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
INTEGER :: depth,field_type,x_min,x_max,y_min,y_max
INTEGER :: j,k,x_inc,y_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
ENDIF
IF(field_type.EQ.VERTEX_DATA) THEN
x_inc=1
y_inc=1
ENDIF
IF(field_type.EQ.X_FACE_DATA) THEN
x_inc=1
y_inc=0
ENDIF
IF(field_type.EQ.Y_FACE_DATA) THEN
x_inc=0
y_inc=1
ENDIF
!$OMP PARALLEL
DO k=1,depth
!$OMP DO PRIVATE(index)
DO j=x_min-depth,x_max+x_inc+depth
index= buffer_offset + k+(j+depth-1)*depth
!index= buffer_offset + j+depth+(k-1)*(x_max+x_inc+(2*depth))
field(j,y_min-k)=bottom_rcv_buffer(index)
ENDDO
!$OMP END DO
ENDDO
!$OMP END PARALLEL
END SUBROUTINE clover_unpack_message_bottom
END MODULE pack_kernel_module