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m2hx_hxic.f90
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!*robodoc*f* cgca_m2hx/m2hx_hxic
! NAME
! m2hx_hxic
! SYNOPSIS
!$Id: m2hx_hxic.f90 430 2017-06-30 07:39:43Z mexas $
submodule ( cgca_m2hx ) m2hx_hxic
! DESCRIPTION
! Submodule of cgca_m2hx with a hx subroutine.
! AUTHOR
! Anton Shterenlikht
! COPYRIGHT
! See LICENCE
! CONTAINS
! cgca_hxic
! USES
! Variables and parameters from the parent module cgca_m2hx.
! USED BY
! The parent module cgca_m2hx.
! SOURCE
implicit none
contains
!*roboend*
!*robodoc*s* cgca_m2hx/cgca_hxic
! NAME
! cgca_hxic
! SYNOPSIS
module procedure cgca_hxic
! INPUT
! See the parent module
! OUTPUT
! See INPUT
! SIDE EFFECTS
! None
! DESCRIPTION
! This routine checks that a prior hx call was done flagly,
! i.e. that the halo cell states are consistent with the states
! of the corresponding real boundary cells. This routine can be
! called for any internal hx algorithm, e.g. cgca_hxi or cgca_hxir.
! NOTES
! All images must call this routine! Lots of remote calls.
! USES
! All data objects from parent module cgca_m2hx by host association.
! USED BY
! module cgca_m2hx
! SOURCE
integer :: &
lbv(4) , & ! lower bounds of the "virtual" coarray
ubv(4) , & ! upper bounds of the "virtual" coarray
lbr(4) , & ! lower bounds of the "real" coarray, lbv+1
ubr(4) , & ! upper bounds of the "real" coarray, ubv-1
lcob(3) , & ! lower cobounds of the coarray
ucob(3) , & ! upper cobounds of the coarray
imgpos(3) ! position of the image in a coarray grid
! Start with 0. Any error must resuult in a positive value.
flag = 0
! check for allocated
if ( .not. allocated( coarray ) ) &
error stop "ERROR: cgca_hxic/m2hx_hxic: coarray is not allocated"
lbv = lbound( coarray )
ubv = ubound( coarray )
lbr = lbv + 1
ubr = ubv - 1
lcob = lcobound( coarray )
ucob = ucobound( coarray )
imgpos = this_image( coarray )
! Make sure only the virtual (halo) arrays are assigned to.
! The real array values must never appear on the left
! hand side of the assignment expressions.
! The halo exchange process is copying real array values into halos.
! There must not ever be copying real values
! to real, or halo to halo, or halo to real.
! Also, only local array must appear on the left.
! We are assigning values to the local array's virtual
! (halo) cells using values from real cells from arrays
! in other images.
! Check 2D halos in direction 1
! op 1
if ( imgpos(1) .ne. lcob(1) ) then
if ( any( &
coarray( lbv(1) , lbr(2) : ubr(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( ubr(1) , lbr(2) : ubr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1)-1 , imgpos(2) , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 2
if ( imgpos(1) .ne. ucob(1) ) then
if ( any( &
coarray( ubv(1) , lbr(2) : ubr(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( lbr(1) , lbr(2) : ubr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1)+1 , imgpos(2) , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! exchange 2D halos in direction 2
! op 3
if ( imgpos(2) .ne. lcob(2) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , lbv(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , ubr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1) , imgpos(2)-1 , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 4
if ( imgpos(2) .ne. ucob(2) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , ubv(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , lbr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1) , imgpos(2)+1 , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! exchange 2D halos in direction 3
! op 5
if ( imgpos(3) .ne. lcob(3) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , lbr(2) : ubr(2) , lbv(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , lbr(2) : ubr(2) , ubr(3) , : ) &
[ imgpos(1) , imgpos(2) , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 6
if ( imgpos(3) .ne. ucob(3) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , lbr(2) : ubr(2) , ubv(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , lbr(2) : ubr(2) , lbr(3) , : ) &
[ imgpos(1) , imgpos(2) , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! exchange 1D halos parallel to direction 3
! op 7
if ( imgpos(1) .ne. lcob(1) .and. imgpos(2) .ne. lcob(2) ) then
if ( any( &
coarray( lbv(1) , lbv(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( ubr(1) , ubr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1)-1 , imgpos(2)-1 , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 8
if ( imgpos(1) .ne. ucob(1) .and. imgpos(2) .ne. lcob(2) ) then
if ( any( &
coarray( ubv(1) , lbv(2) , lbr(3) : ubr(3) , :) .ne. &
coarray( lbr(1) , ubr(2) , lbr(3) : ubr(3) , :) &
[ imgpos(1)+1 , imgpos(2)-1 , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 9
if ( imgpos(1) .ne. ucob(1) .and. imgpos(2) .ne. ucob(2) ) then
if ( any( &
coarray( ubv(1) , ubv(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( lbr(1) , lbr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1)+1 , imgpos(2)+1 , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 10
if ( imgpos(1) .ne. lcob(1) .and. imgpos(2) .ne. ucob(2) ) then
if ( any( &
coarray( lbv(1) , ubv(2) , lbr(3) : ubr(3) , : ) .ne. &
coarray( ubr(1) , lbr(2) , lbr(3) : ubr(3) , : ) &
[ imgpos(1)-1 , imgpos(2)+1 , imgpos(3) ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! exchange 1D halos parallel to direction 1
! op 11
if ( imgpos(2) .ne. lcob(2) .and. imgpos(3) .ne. lcob(3) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , lbv(2) , lbv(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , ubr(2) , ubr(3) , : ) &
[ imgpos(1) , imgpos(2)-1 , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 12
if ( imgpos(2) .ne. lcob(2) .and. imgpos(3) .ne. ucob(3) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , lbv(2) , ubv(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , ubr(2) , lbr(3) , : ) &
[ imgpos(1) , imgpos(2)-1 , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 13
if ( imgpos(2) .ne. ucob(2) .and. imgpos(3) .ne. ucob(3) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , ubv(2) , ubv(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , lbr(2) , lbr(3) , : ) &
[ imgpos(1) , imgpos(2)+1 , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 14
if ( imgpos(2) .ne. ucob(2) .and. imgpos(3) .ne. lcob(3) ) then
if ( any( &
coarray( lbr(1) : ubr(1) , ubv(2) , lbv(3) , : ) .ne. &
coarray( lbr(1) : ubr(1) , lbr(2) , ubr(3) , : ) &
[ imgpos(1) , imgpos(2)+1 , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! exchange 1D halos parallel to direction 2
! op 15
if ( imgpos(1) .ne. lcob(1) .and. imgpos(3) .ne. lcob(3) ) then
if ( any( &
coarray( lbv(1) , lbr(2) : ubr(2) , lbv(3) , : ) .ne. &
coarray( ubr(1) , lbr(2) : ubr(2) , ubr(3) , : ) &
[ imgpos(1)-1 , imgpos(2) , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 16
if ( imgpos(1) .ne. ucob(1) .and. imgpos(3) .ne. lcob(3) ) then
if ( any( &
coarray( ubv(1) , lbr(2) : ubr(2) , lbv(3) , : ) .ne. &
coarray( lbr(1) , lbr(2) : ubr(2) , ubr(3) , : ) &
[ imgpos(1)+1 , imgpos(2) , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 17
if ( imgpos(1) .ne. ucob(1) .and. imgpos(3) .ne. ucob(3) ) then
if ( any( &
coarray( ubv(1) , lbr(2) : ubr(2) , ubv(3) , : ) .ne. &
coarray( lbr(1) , lbr(2) : ubr(2) , lbr(3) , : ) &
[ imgpos(1)+1 , imgpos(2) , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 18
if ( imgpos(1) .ne. lcob(1) .and. imgpos(3) .ne. ucob(3) ) then
if ( any( &
coarray( lbv(1) , lbr(2) : ubr(2) , ubv(3) , : ) .ne. &
coarray( ubr(1) , lbr(2) : ubr(2) , lbr(3) , : ) &
[ imgpos(1)-1 , imgpos(2) , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! Exchange 8 scalar halos
! See diagram cgca1 in the manual.
! op 19
if ( (imgpos(1) .ne. lcob(1)) .and. (imgpos(2) .ne. lcob(2)) .and. &
(imgpos(3) .ne. lcob(3)) ) then
if ( any( &
coarray( lbv(1) , lbv(2) , lbv(3) , : ) .ne. &
coarray( ubr(1) , ubr(2) , ubr(3) , : ) &
[ imgpos(1)-1 , imgpos(2)-1 , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 20
if ( (imgpos(1) .ne. ucob(1)) .and. (imgpos(2) .ne. lcob(2)) .and. &
(imgpos(3) .ne. lcob(3)) ) then
if ( any( &
coarray( ubv(1) , lbv(2) , lbv(3) , : ) .ne. &
coarray( lbr(1) , ubr(2) , ubr(3) , : ) &
[ imgpos(1)+1 , imgpos(2)-1 , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 21
if ( (imgpos(1) .ne. ucob(1)) .and. (imgpos(2) .ne. ucob(2)) .and. &
(imgpos(3) .ne. lcob(3)) ) then
if ( any( &
coarray( ubv(1) , ubv(2) , lbv(3) , : ) .ne. &
coarray( lbr(1) , lbr(2) , ubr(3) , : ) &
[ imgpos(1)+1 , imgpos(2)+1 , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 22
if ( (imgpos(1) .ne. lcob(1)) .and. (imgpos(2) .ne. ucob(2)) .and. &
(imgpos(3) .ne. lcob(3)) ) then
if ( any( &
coarray( lbv(1) , ubv(2) , lbv(3) , : ) .ne. &
coarray( ubr(1) , lbr(2) , ubr(3) , : ) &
[ imgpos(1)-1 , imgpos(2)+1 , imgpos(3)-1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 23
if ( (imgpos(1) .ne. lcob(1)) .and. (imgpos(2) .ne. lcob(2)) .and. &
(imgpos(3) .ne. ucob(3)) ) then
if ( any( &
coarray( lbv(1) , lbv(2) , ubv(3) , : ) .ne. &
coarray( ubr(1) , ubr(2) , lbr(3) , : ) &
[ imgpos(1)-1 , imgpos(2)-1 , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 24
if ( (imgpos(1) .ne. ucob(1)) .and. (imgpos(2) .ne. lcob(2)) .and. &
(imgpos(3) .ne. ucob(3)) ) then
if ( any( &
coarray( ubv(1) , lbv(2) , ubv(3) , : ) .ne. &
coarray( lbr(1) , ubr(2) , lbr(3) , : ) &
[ imgpos(1)+1 , imgpos(2)-1 , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 25
if ( (imgpos(1) .ne. ucob(1)) .and. (imgpos(2) .ne. ucob(2)) .and. &
(imgpos(3) .ne. ucob(3)) ) then
if ( any( &
coarray( ubv(1) , ubv(2) , ubv(3) , : ) .ne. &
coarray( lbr(1) , lbr(2) , lbr(3) , : ) &
[ imgpos(1)+1 , imgpos(2)+1 , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
! op 26
if ( (imgpos(1) .ne. lcob(1)) .and. (imgpos(2) .ne. ucob(2)) .and. &
(imgpos(3) .ne. ucob(3)) ) then
if ( any( &
coarray( lbv(1) , ubv(2) , ubv(3) , : ) .ne. &
coarray( ubr(1) , lbr(2) , lbr(3) , : ) &
[ imgpos(1)-1 , imgpos(2)+1 , imgpos(3)+1 ] ) ) then
flag = 1
! And return immediately
return
end if
end if
end procedure cgca_hxic
!*roboend*
end submodule m2hx_hxic