dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

Thanks for the fix, patch applied.

--
Anders

On Fri, Jul 02, 2010 at 01:36:09PM -0000, Bartosz Sawicki wrote:
> Hopefully it was quite simple to trace this bug. Revision 4461
> (2010-02-07 21:53:42) is found to be guilty :)
>
> Could you please apply attached patch.
>
>
> ** Patch added: "solution for bug"
>    http://launchpadlibrarian.net/51288953/dolfin-sawickib-20100702.patch
>


** Changed in: dolfin
       Status: New => Fix Committed

-- 
broken transform_data on refine
https://bugs.launchpad.net/bugs/600939
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Status in DOLFIN: Fix Committed

Bug description:
I've realized that somewhere during last year refinement features has been broken. Not whole refinement, but only the part responsible for MeshData transformation between old and new mesh. This is code was written by me, so I'll try to fix it, but maybe some of you guys can take a quick look and help me which recent change could cause this problem. 

===== Code to repeat crash =====
#include<dolfin.h>
using namespace dolfin;
int main(){
 UnitCube mesh(10, 10, 10);
 mesh.data().create_mesh_function("material indicators", 3);
 MeshFunction<bool> mf(mesh, 3);
 mf = true;
 Mesh newmesh;
 newmesh = refine( mesh, mf);
}

===== Error messages =====
Refining simplicial mesh by recursive Rivara bisection.
a.out: dolfin/mesh/MeshFunction.h:136: const T& dolfin::MeshFunction<T>::operator[](dolfin::uint) const [with T = unsigned int]: Assertion `index < _size' failed.
[gaus:12683] *** Process received signal ***
[gaus:12683] Signal: Aborted (6)
[gaus:12683] Signal code:  (-6)
[gaus:12683] [ 0] /lib/libc.so.6 [0x7fe37c828100]
[gaus:12683] [ 1] /lib/libc.so.6(gsignal+0x35) [0x7fe37c828095]
[gaus:12683] [ 2] /lib/libc.so.6(abort+0x110) [0x7fe37c829af0]
[gaus:12683] [ 3] /lib/libc.so.6(__assert_fail+0xef) [0x7fe37c8212df]
[gaus:12683] [ 4] /usr/lib/libdolfin.so.0(_ZN6dolfin19LocalMeshRefinement14transform_dataERNS_4MeshERKS1_RKNS_12MeshFunctionIjEERKSt6vectorIiSaIiEE+0x8e7) [0x7fe37d58cd57]
[gaus:12683] [ 5] /usr/lib/libdolfin.so.0(_ZN6dolfin19LocalMeshRefinement32refineRecursivelyByEdgeBisectionERKNS_4MeshERKNS_12MeshFunctionIbEE+0x139) [0x7fe37d58d899]
[gaus:12683] [ 6] /usr/lib/libdolfin.so.0(_ZN6dolfin6refineERKNS_4MeshERKNS_12MeshFunctionIbEE+0x9) [0x7fe37d51bbe9]
[gaus:12683] [ 7] ./a.out(_ZNK6dolfin4Mesh3strEb+0x592) [0x40a592]
[gaus:12683] [ 8] /lib/libc.so.6(__libc_start_main+0xf4) [0x7fe37c8141c4]
[gaus:12683] [ 9] ./a.out(_ZNK6dolfin4Mesh3strEb+0x209) [0x40a209]
[gaus:12683] *** End of error message ***
Aborted