[dune-pdelab] Dune::PDELab::ISTLBackend_NOVLP_CG_AMG_SSOR with ALUGrid

[Markus Blatt]

On Fri, Jan 27, 2012 at 10:17:23AM +0000, Eike Mueller wrote:
> Dear dune-/pdelab-list,
> 
> I'm trying to use the non-overlapping ISTL backend
> Dune::PDELab::ISTLBackend_NOVLP_CG_AMG_SSOR for solving a problem on
> my spherical shell grid, which I implemented with ALUGrid. This
> works fine in serial, but if I try to run in parallel I get the
> runtime error given below [1]. I have also tried the same backend on
> a non-overlapping YaspGrid (just a simple cube), where it works fine
> both serially and in parallel. In addition, the ISTL backend
> Dune::PDELab::ISTLBackend_NOVLP_CG_SSORk works without problems in
> parallel with my ALUGrid implementation.
> 
> Does anyone have any idea what might be going wrong here?


This meas that some ghost nodes still carry the unaggregated flag even
though the information about the aggregation was communicated.

Which probably means that the communication interface was not setup
correctly.

Please provide a test case and post a bug in the pdelab bug
tracker at http://users.dune-project.org/projects/dune-pdelab/issues

Thanks!

Markus
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