diff options
Diffstat (limited to 'src/Derivatives_2_1.F90')
| -rw-r--r-- | src/Derivatives_2_1.F90 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/Derivatives_2_1.F90 b/src/Derivatives_2_1.F90 index 8192a71..788d325 100644 --- a/src/Derivatives_2_1.F90 +++ b/src/Derivatives_2_1.F90 @@ -37,6 +37,8 @@ subroutine deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) idel = 1.0_wp / delta + if (gsize < 1) call CCTK_WARN (0, "not enough ghostzones") + direction: select case (dir) case (0) direction if ( bb(1) == 0 ) then @@ -55,6 +57,7 @@ subroutine deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) q(2,1) * var(ni-1,:,:) ) * idel ir = ni - 2 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,:,:) ) * idel case (1) direction if ( zero_derivs_y /= 0 ) then @@ -76,6 +79,7 @@ subroutine deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) q(2,1) * var(:,nj-1,:) ) * idel jr = nj - 2 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,:) ) * idel end if @@ -99,6 +103,7 @@ subroutine deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, dvar ) q(2,1) * var(:,:,nk-1) ) * idel kr = nk - 2 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) ) * idel end if @@ -159,6 +164,8 @@ subroutine up_deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) idel = 1.0_wp / delta + if (gsize < 1) call CCTK_WARN (0, "not enough ghostzones") + direction: select case (dir) case (0) direction if ( bb(1) == 0 ) then @@ -199,6 +206,7 @@ subroutine up_deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) end where ir = ni - 2 end if + if (il > ir+1) call CCTK_WARN (0, "domain too small") where ( up(il:ir,:,:) < zero ) dvar(il:ir,:,:) = ( a1(-1) * var(il-1:ir-1,:,:) + & a1(0) * var(il:ir,:,:) + & @@ -250,6 +258,7 @@ subroutine up_deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) end where jr = nj - 2 end if + if (jl > jr+1) call CCTK_WARN (0, "domain too small") where ( up(:,jl:jr,:) < zero ) dvar(:,jl:jr,:) = ( a1(-1) * var(:,jl-1:jr-1,:) + & a1(0) * var(:,jl:jr,:) + & @@ -302,6 +311,7 @@ subroutine up_deriv_gf_2_1 ( var, ni, nj, nk, dir, bb, gsize, delta, up, dvar ) end where kr = nk - 2 end if + if (kl > kr+1) call CCTK_WARN (0, "domain too small") where ( up(:,:,kl:kr) < zero ) dvar(:,:,kl:kr) = ( a1(-1) * var(:,:,kl-1:kr-1) + & a1(0) * var(:,:,kl:kr) + & |