Re: [deal.II] METIS partition error
Dear David,
Thank you! It solved the problem.
Best wishes,
Yuesu
On Mon, Jul 27, 2020 at 8:48 AM David Wells wrote:
> Hi Yuesu,
>
> Essentially, yes. If you look at the code for partition_triangulation you
> will find
>
> // check for an easy return
> if (n_partitions == 1)
> {
> for (const auto &cell : triangulation.active_cell_iterators())
> cell->set_subdomain_id(0);
> return;
> }
>
> Hence step-17 only tries to use metis (and, if metis is not available,
> aborts) if there are multiple partitions for the mesh.
>
> Best,
> David
>
>
> On Mon, Jul 27, 2020 at 12:37 AM yuesu jin wrote:
>
>> Dear all,
>> I am running step-17 by mpirun, it returns the error message below:
>> **
>>
>> Exception on processing:
>>
>>
>> An error occurred in line <69> of file
>> in function
>> void dealii::SparsityTools::{anonymous}::partition_metis(const
>> dealii::SparsityPattern&, const std::vector&, unsigned int,
>> std::vector&)
>> The violated condition was:
>> false
>> Additional information:
>> The function you called requires METIS, but you did not configure
>> deal.II with METIS.
>>
>> This message does't appear when I use a single node to run it. Does the
>> sparsity tools automatically overload to partition_metis under parallel
>> case?
>> Thank you!
>> Best regards
>> --
>> Yuesu Jin,
>> Ph.D student,
>> University of Houston,
>> College of Natural Sciences and Mathematics,
>> Department of Earth and Atmospheric Sciences,
>> Houston, Texas 77204-5008
>> 346-404-2062
>>
>> --
>> The deal.II project is located at http://www.dealii.org/
>> For mailing list/forum options, see
>> https://groups.google.com/d/forum/dealii?hl=en
>> ---
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>> "deal.II User Group" group.
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>>
>> .
>>
> --
> The deal.II project is located at http://www.dealii.org/
> For mailing list/forum options, see
> https://groups.google.com/d/forum/dealii?hl=en
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>
> .
>
--
Yuesu Jin,
Ph.D student,
University of Houston,
College of Natural Sciences and Mathematics,
Department of Earth and Atmospheric Sciences,
Houston, Texas 77204-5008
346-404-2062
--
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see
https://groups.google.com/d/forum/dealii?hl=en
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Re: [deal.II] METIS partition error
Hi Yuesu,
Essentially, yes. If you look at the code for partition_triangulation you
will find
// check for an easy return
if (n_partitions == 1)
{
for (const auto &cell : triangulation.active_cell_iterators())
cell->set_subdomain_id(0);
return;
}
Hence step-17 only tries to use metis (and, if metis is not available,
aborts) if there are multiple partitions for the mesh.
Best,
David
On Mon, Jul 27, 2020 at 12:37 AM yuesu jin wrote:
> Dear all,
> I am running step-17 by mpirun, it returns the error message below:
> **
>
> Exception on processing:
>
>
> An error occurred in line <69> of file
> in function
> void dealii::SparsityTools::{anonymous}::partition_metis(const
> dealii::SparsityPattern&, const std::vector&, unsigned int,
> std::vector&)
> The violated condition was:
> false
> Additional information:
> The function you called requires METIS, but you did not configure
> deal.II with METIS.
>
> This message does't appear when I use a single node to run it. Does the
> sparsity tools automatically overload to partition_metis under parallel
> case?
> Thank you!
> Best regards
> --
> Yuesu Jin,
> Ph.D student,
> University of Houston,
> College of Natural Sciences and Mathematics,
> Department of Earth and Atmospheric Sciences,
> Houston, Texas 77204-5008
> 346-404-2062
>
> --
> The deal.II project is located at http://www.dealii.org/
> For mailing list/forum options, see
> https://groups.google.com/d/forum/dealii?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "deal.II User Group" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to dealii+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/dealii/CA%2B25a%3DJ2Rzk9yL0Zt%2Boq_U-MV4hWcwNJGvj-4tjjjRAqABs81Q%40mail.gmail.com
>
> .
>
--
The deal.II project is located at http://www.dealii.org/
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[deal.II] METIS partition error
Dear all,
I am running step-17 by mpirun, it returns the error message below:
**
Exception on processing:
An error occurred in line <69> of file
in function
void dealii::SparsityTools::{anonymous}::partition_metis(const
dealii::SparsityPattern&, const std::vector&, unsigned int,
std::vector&)
The violated condition was:
false
Additional information:
The function you called requires METIS, but you did not configure
deal.II with METIS.
This message does't appear when I use a single node to run it. Does the
sparsity tools automatically overload to partition_metis under parallel
case?
Thank you!
Best regards
--
Yuesu Jin,
Ph.D student,
University of Houston,
College of Natural Sciences and Mathematics,
Department of Earth and Atmospheric Sciences,
Houston, Texas 77204-5008
346-404-2062
--
The deal.II project is located at http://www.dealii.org/
For mailing list/forum options, see
https://groups.google.com/d/forum/dealii?hl=en
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