diff options
Diffstat (limited to 'src/Derivatives_4_2.F90')
| -rw-r--r-- | src/Derivatives_4_2.F90 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/Derivatives_4_2.F90 b/src/Derivatives_4_2.F90 index 5cec73a..fb6888f 100644 --- a/src/Derivatives_4_2.F90 +++ b/src/Derivatives_4_2.F90 @@ -47,6 +47,8 @@ subroutine deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) idel = 1.0_wp / delta + if (gsize < 2) call CCTK_WARN (0, "not enough ghostzones") + direction: select case (dir) case (0) direction if ( bb(1) == 0 ) then @@ -80,6 +82,7 @@ subroutine deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) q(4,1) * var(ni-3,:,:) ) * idel ir = ni - 4 end if + if (il > ir+1) call CCTK_WARN (0, "domain too small") dvar(il:ir,:,:) = ( a(1) * ( var(il+1:ir+1,:,:) - & var(il-1:ir-1,:,:) ) + & a(2) * ( var(il+2:ir+2,:,:) - & @@ -119,6 +122,7 @@ subroutine deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) q(4,1) * var(:,nj-3,:) ) * idel jr = nj - 4 end if + if (jl > jr+1) call CCTK_WARN (0, "domain too small") dvar(:,jl:jr,:) = ( a(1) * ( var(:,jl+1:jr+1,:) - & var(:,jl-1:jr-1,:) ) + & a(2) * ( var(:,jl+2:jr+2,:) - & @@ -159,6 +163,7 @@ subroutine deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) q(4,1) * var(:,:,nk-3) ) * idel kr = nk - 4 end if + if (kl > kr+1) call CCTK_WARN (0, "domain too small") dvar(:,:,kl:kr) = ( a(1) * ( var(:,:,kl+1:kr+1) - & var(:,:,kl-1:kr-1) ) + & a(2) * ( var(:,:,kl+2:kr+2) - & @@ -261,6 +266,8 @@ subroutine up_deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) idel = 1.0_wp / delta + if (gsize < 2) call CCTK_WARN (0, "not enough ghostzones") + direction: select case (dir) case (0) direction if ( bb(1) == 0 ) then @@ -355,6 +362,7 @@ subroutine up_deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) end where ir = ni - 4 end if + if (il > ir+1) call CCTK_WARN (0, "domain too small") where ( up(il:ir,:,:) < zero ) dvar(il:ir,:,:) = ( a1(-2) * var(il-2:ir-2,:,:) + & a1(-1) * var(il-1:ir-1,:,:) + & @@ -412,6 +420,7 @@ subroutine up_deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) if ( bb(2) == 0 ) then jr = nj - gsize else + if (jl > jr+1) call CCTK_WARN (0, "domain too small") where ( up(:,nj-3,:) < zero ) dvar(:,nj-3,:) = - ( q2(1,4) * var(:,nj,:) + & q2(2,4) * var(:,nj-1,:) + & @@ -574,6 +583,7 @@ subroutine up_deriv_gf_4_2 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) end where kr = nk - 4 end if + if (kl > kr+1) call CCTK_WARN (0, "domain too small") where ( up(:,:,kl:kr) < zero ) dvar(:,:,kl:kr) = ( a1(-2) * var(:,:,kl-2:kr-2) + & a1(-1) * var(:,:,kl-1:kr-1) + & |