blocked index sets

[Lisandro Dalcin]

So, Do all us agree my proposed fix should be pushed? I'll wait for
Matt comments/complaints...


On Wed, Aug 27, 2008 at 1:13 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
> On Aug 27, 2008, at 10:23 AM, Matthew Knepley wrote:
>
>> There is no concept of global for IS. They are purely serial. AO is the
>> only
>> global construct with indices.
>
>   This is kind of true, and maybe used to be completely true. But IS does
> have a communicator and that communicator can be MPI_COMM_WORLD or
> any parallel communicator.  In other words the IS is evolving to be an
> object
> that can be parallel in the same sense as vecs or mats
>
>   There are already ISGetSize() and ISGetLocalSize() so it sure makes sense
> to have the same paradgm for the ISGetBlockSize().
>
>
>   Barry
>
> Originally IS had no parallel concept, then we added the ISGetSize/LocalSize
> but forgot to do it for the ISBlock...
>
>
>>
>>
>>  Matt
>>
>> On Wed, Aug 27, 2008 at 10:09 AM, Lisandro Dalcin <dalcinl at gmail.com>
>> wrote:
>>>
>>> I believe we have to review the interface of ISBlock. Currently,
>>> ISBlockGetSize() return the number of LOCAL block indices. This is not
>>> consistent with other naming conventions for getting local and glocal
>>> sizes. I propose to change this to the following
>>>
>>> 1) change: ISBlockGetSize() returns the number global blocks
>>> 2) addition:  ISBlockGetLocalSize() return the number of local blocks
>>>
>>> Comments?
>>>
>>>
>>> --
>>> Lisandro Dalcín
>>> ---------------
>>> Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
>>> Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
>>> Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
>>> PTLC - Güemes 3450, (3000) Santa Fe, Argentina
>>> Tel/Fax: +54-(0)342-451.1594
>>>
>>>
>>
>>
>>
>> --
>> 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
>>
>
>



-- 
Lisandro Dalcín
---------------
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
PTLC - Güemes 3450, (3000) Santa Fe, Argentina
Tel/Fax: +54-(0)342-451.1594