gmsh and libscotchmetis

[Anton Gladky]

Just a guess,
maybe we can contact metis upstream with the question of relicensing
it under distributable license?

Anton




On Wed, Jun 8, 2011 at 7:51 PM, Christophe Trophime
<christophe.trophime at lncmi.cnrs.fr> wrote:
>
> On Jun 8, 2011, at 7:16 PM, Anton Gladky wrote:
>
>> Hi, Adam!
>>
>>> Sounds good, thanks.  I notice you also added the interfaces you need
>>> for gmsh to Bug 506033, thanks.
>> Ok, done.
>>
>>> For Elmer, I noticed that it could do node-wise or element-wise
>>> partitioning, and just disabled the element-wise partitioning which used
>>> METIS_PartMesh* functions.  Is it possible to do something similar for
>>> gmsh?
>>
>> I just shortly looked at the code, but it seems, that the
>> functionality of metis-module will be seriously restricted, if those 2
>> functions will be disabled.
>>
>> Anton
>>
>>
>
> Hi,
> last week I met gmsh guys
> They told me that they prefer to use metis instead of scotch because metis
> provides some multiconstraint partionning...  It seems that scotch upstream has no
> plan to develop such features right now.
>
> So my feeling is that we shall disable metis support in the present version of gmsh
> or consider to make a gmsh-metis package which will goto to non-free as an alternative.
> This solution may be great as we can take full advantage of the latest gmsh developments.
>
> Best
> C
>
>>
>>
>> On Tue, Jun 7, 2011 at 6:33 PM, Adam C Powell IV <hazelsct at debian.org> wrote:
>>> Hi Anton,
>>>
>>> Sounds good, thanks.  I notice you also added the interfaces you need
>>> for gmsh to Bug 506033, thanks.
>>>
>>> For Elmer, I noticed that it could do node-wise or element-wise
>>> partitioning, and just disabled the element-wise partitioning which used
>>> METIS_PartMesh* functions.  Is it possible to do something similar for
>>> gmsh?
>>>
>>> -Adam
>>>
>>> On Tue, 2011-06-07 at 17:46 +0200, Anton Gladky wrote:
>>>> Thanks for answers, I have uploaded a new version with disabled metis.
>>>>
>>>> Anton
>>>>
>>>> On Mon, Jun 6, 2011 at 8:28 PM, Adam C Powell IV <hazelsct at debian.org> wrote:
>>>>> Hi Anton,
>>>>>
>>>>> On Sun, 2011-06-05 at 07:29 +0200, Anton Gladky wrote:
>>>>>> Hi, all!
>>>>>>
>>>>>> I am trying to package gmsh 2.5.1~svn version and to fix lintian
>>>>>> errors and warnings. But I have a problem with linking against
>>>>>> packaged libscotchmetis. The following error appears:
>>>>>>
>>>>>> Linking CXX executable gmsh
>>>>>> /home/dk/gmsh/nv/upl_metis/gmsh-2.5.1~svn9373/Mesh/meshPartition.cpp:527:
>>>>>> error: undefined reference to 'METIS_mCPartGraphKway'
>>>>>> /home/dk/gmsh/nv/upl_metis/gmsh-2.5.1~svn9373/Mesh/meshPartition.cpp:502:
>>>>>> error: undefined reference to 'METIS_mCPartGraphRecursive'
>>>>>> collect2: ld returned 1 exit status
>>>>>
>>>>> The scotchmetis compatibility layer is not a complete reimplementation
>>>>> of METIS.  Bug 506033 requests addition of PartMesh functions; these may
>>>>> also be missing.
>>>>>
>>>>> I or someone else should probably forward these requests upstream and
>>>>> see if there is some prospect of implementing these functions...
>>>>>
>>>>> -Adam
>>> --
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>>>
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>>>
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>>
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