[petsc-users] metis for dev version of petsc

[Matthew Knepley]

On Fri, Jan 13, 2012 at 11:33 AM, Sean Farley <sean at mcs.anl.gov> wrote:

> Recently, we started using the development version for some testing. This
>> needs a more recent version of metis: ****
>>
>>             METIS_SetDefaultOptions(&options[0]);****
>>
>>             METIS_PartGraphKway(&nCells, &ncon,
>> &ia[0],&ja[0],&vwgt[0],&vsize[0],&adjwgt[0],&nParts,&tpwgts[0],&ubvec[0],
>> &options[0],&edgecut,&part[0]);****
>>
>> This has the same function name but with different argument list.****
>>
>> ** **
>>
>> We noticed that the latest version does not partition properly as before
>> : we get just one cell in the 0th partition.****
>>
>> ** **
>>
>> Any inputs on this?
>>
>
> What are you setting for options? i.e. are you trying to use the default
> parameters or do you have your own weights?
>

To follow up on Sean's note, is there a reason that this partitioning
problem does not fit into MatPartitioning? If not,
we would be very interested in extending our interface to support it.

  Thanks,

    Matt

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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