[dune-functions] [Dune-functions-commit] [Commit] dune-functions - e7abafb: Add protocol for Aachen meeting

Carsten Gräser graeser at mi.fu-berlin.de
Wed Mar 26 10:27:31 CET 2014

Hi Christian,
this is a little surprising to me since we already discussed this
and decided differently. Unfortunately removing the 'is consecutive'
guarantee makes the whole multi index concept useless. Without this
guarantee the multi index is just some unique id equally usefull
than a hash.

If you (in contrast to what we discussed) really need non-consecutive
indices it would be nice if you could give a short explanation and
come up with some replacement. Otherwise the only thing you can
do based on the interface is looping over all dofs and put them into
some (unordered)map<MultiIndex,SomeUsefullIndex>.


Am 26.03.2014 10:00, schrieb Christian Engwer:
> Hi Carsten,
> We discussed this yesterday. There are many open questions regarding
> the backend interface and the multi index is one of them. In any case
> we have to specify the exact semantics of different versions of multi
> indices and this might them include that they are zero starting.
> Christian
> On 25. März 2014 21:54:37 MEZ, "Carsten Gräser" <graeser at mi.fu-berlin.de> wrote:
>> Hi Steffen,
>> didn't we decide that the global multi
>> indices should always be consecutive?
>> If not, we may also add a method to
>> check if a prefix does appear in any
>> index.
>> Best,
>> Carsten
>> On 25. März 2014 19:19:23 MEZ, "Steffen Müthing"
>> <muething at dune-project.org> wrote:
>>> New commit, appeared at Tue Mar 25 19:19:23 2014 +0100
>>> as part of the following ref changes:
>>>    branch refs/heads/master    updated from 3289b50 -> e7abafb
>>> Browsable version:
>>> http://cgit.dune-project.org/repositories/dune-functions/commit/?id=e7abafbf4a2892734c598c4984a633d4709a1cc2
>>> ======================================================================
>>> commit e7abafbf4a2892734c598c4984a633d4709a1cc2
>>> Author: Steffen Müthing <muething at dune-project.org>
>>> Da

Prof. Dr. Carsten Gräser
Freie Universität Berlin
Institut für Mathematik
Arnimallee 6
14195 Berlin, Germany
phone: +49 30 838 75349
fax  : +49 30 838 54977
email: graeser at mi.fu-berlin.de
URL  : http://page.mi.fu-berlin.de/graeser

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