[Dune] load balancing with dune-alugrid

[Alexander Kissinger]

Dear Andreas,

thanks for your reply. HAVE_METIS is not set in my config.h (see file 
attached).
So something must go wrong for my case between cmake finding metis and 
the creation of the config.h?

best regards
Alex

On 07/15/2015 08:46 PM, Andreas Dedner wrote:
> Konsole output
> Hi.
> To answer your main question: yes the metis bindings should work.
> Since you are reaching the error message you attach which is in
>   dune/alugrid/impl/parallel/alumetis.hh
> it seems that HAVE_METIS is not set in your config.h file. So first 
> thing to check
> is if HAVE_METIS is set or not.
> Best
> Andreas
>
>
> On 15/07/15 18:24, Alexander Kissinger wrote:
>> Dear Dune,
>>
>> I am using Dumux and I want to run parallel simulations on our 
>> cluster using dune-alugrid as a grid manager. When I use the internal 
>> load balancing methods of dune-alugrid I notice when looking at the 
>> ranks in my vtu ouput that partitioning only takes place in one 
>> spatial direction. Back when ALUGrid was an external module I used 
>> ParMetis for load balancing and was happy with it.
>> I am a bit confused about what options I actually have with 
>> dune-alugrid. Looking at the alugrid.cfg-file I see that besides the 
>> the internal methods there still exist METIS_PartGraphKway and 
>> METIS_PartGraphRecursive.
>>
>> I tried the following:
>> 1) installing METIS-5.1.0, according to the cmake log (see attached) 
>> dune-alugrid finds Metis. However when running a simulation and 
>> setting METIS_PartGraphKway or METIS_PartGraphRecursive in the cfg 
>> file I get the error:
>>
>> **ERROR The use of METIS_PartGraphRecursive is not supported, when 
>> the METIS library is missing!  in: 
>> /nfs/home_simtech/iwskissi/DUMUX_DUNE_TRUNK/dune-alugrid/dune/alugrid/impl/parallel/alumetis.hh 
>> line: 137
>> **INFO Due to license reasons the library METIS is
>>        not part of the ALUGrid library distribution.
>>        To use this feature get a copy of the METIS library
>>        (see http://www-users.cs.umn.edu/~karypis/metis/metis/ )
>>        and re-configure the ALUGrid library with the
>>        --with-metis=PATH_TO_METIS option,
>>        or choose another Graph partitioning method.
>>        Exiting program, bye!
>>
>> 2) I also tried installing ParMETIS 3.2 with its version of Metis 
>> which leads to the same error (I have not attached the cmake log).
>>
>> - Are METIS_PartGraphKway and METIS_PartGraphRecursive still working 
>> with dune-alugrid?
>> - Is ParMETIS only working in combination the package ZOLTAN now?
>>
>> I would appreciate any advice on what might be a promising way to go. 
>> I also tried using ZOLTAN with ParMETIS, but this I think this mail 
>> is already long enough :-)
>>
>> The system I use is:
>> gcc-4-9-3
>> openmpi 1.8.6
>> trunk version of all dune modules (including dune-alugrid)
>> trunk version of dumux
>> METIS 5.1.0
>> ParMETIS 3.2
>>
>> Thank you!
>>
>> Best regards
>> Alex
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Dune mailing list
>> Dune at dune-project.org
>> http://lists.dune-project.org/mailman/listinfo/dune
>


-- 
Alexander Kissinger
Institut für Wasser- und Umweltsystemmodellierung
Lehrstuhl für Hydromechanik und Hydrosystemmodellierung
Pfaffenwaldring 61
D-70569 Stuttgart

Telefon: +49 (0) 711 685-64729
E-Mail:  alexander.kissinger at iws.uni-stuttgart.de

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.dune-project.org/pipermail/dune/attachments/20150716/6a075f5c/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: config_metis-5-1-0.h
Type: text/x-chdr
Size: 14340 bytes
Desc: not available
URL: <https://lists.dune-project.org/pipermail/dune/attachments/20150716/6a075f5c/attachment.h>