Hi Zhenlin,
I concur with Denis - I regularly use the method that he's outlined in
conjunction with hp::DoFHandler.
Regards,
Jean-Paul
On Wednesday, February 22, 2017 at 9:53:26 AM UTC+1, Denis Davydov wrote:
>
> you can always partition regular triangulation by
> GridTools::partition_triangulation (n_mpi_processes, triangulation);
> and adjust your assembly loops to
> if (cell->subdomain_id == this_mpi_process)
> to parallelize with MPI. The downside is that all your processes will now
> own the **complete mesh**.
> There are also some other minor downsides like serial SolutionTransfer and
> not straight-forward serialization/restart.
>
> Regards,
> Denis.
>
> On Wednesday, February 22, 2017 at 6:51:34 AM UTC+1, zhen-lin Wang wrote:
>>
>> Hi all,
>>
>> I found that hp::DoFHandler does not support
>> parallel::distributed::Triangulation currently. The error shows like:
>> -----------
>>
>> An error occurred in line <1669> of file
>> </Applications/deal.II.brew.app/Contents/Resources/brew/src/dealii/8.4.2/source/hp/dof_handler.cc>
>>
>> in function
>>
>> dealii::hp::DoFHandler<2, 2>::DoFHandler(const Triangulation<dim,
>> spacedim> &) [dim = 2, spacedim = 2]
>>
>> The violated condition was:
>>
>> (dynamic_cast<const parallel::distributed::Triangulation< dim,
>> spacedim >*> (&tria) == 0)
>>
>> The name and call sequence of the exception was:
>> ExcMessage ("The given triangulation is parallel distributed but "
>> "this class does not currently support this.")
>> -----------
>> I wondThe problem I am doing needs Fe_Nothing and I want to parallelize
>> the code with BlockSparseMatrix and BlockVector. I follow the step55
>> which using parallel::distributed::Triangulation. I wonder can I use
>> regular Triangular and hp::DoFHandler but still follow step55 for the
>> rest of the part?
>>
>> Thanks,
>>
>> Zhenlin Wang
>>
>
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