[Nek5000-users] genmap error: "infinite loop"

[nek5000-users at lists.mcs.anl.gov]

Hi Paul,

Thanks for explaining the error.

Regards,
Mani

On Mon, Sep 12, 2011 at 3:59 AM, <nek5000-users at lists.mcs.anl.gov> wrote:

>
> Hi Mani,
>
> It's not a fatal flaw... particularly for the values shown.
>
> It simply means that recursive spectral bisection could not
> find a split that would yield connected subgraphs in the
> domain partitioning scheme.   At the leaves of the graph
> (indicated by the small values 1 2 1), this is not a big
> deal.  Elsewhere, it could be detrimental to performance,
> but the code would still run correctly.
>
> Paul
>
>
>
> On Sun, 11 Sep 2011, nek5000-users at lists.mcs.anl.**gov<nek5000-users at lists.mcs.anl.gov>wrote:
>
>  Dear Nek devs,
>>
>> I get the following error when using genmap to generate the .map file from
>> a
>> mesh involving a large number of elements, in this case 157464 elements.
>>
>> infinite loop
>> not connected           1           2           1           0
>>
>> I have attached the full log file from genmap along with the .box file
>> used
>> to generate the mesh. How does one fix this error?
>>
>> Thanks,
>> Mani
>>
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