[Mpi-21] TODO - AUTHORS of MPI-2.1 - Workplan

Mon Apr 7 13:05:28 CDT 2008

The problem is that the text about language bindings is fairly  
disjoint between chapters 2 and 13.  Indeed, chapter 13 is redundant  
and out of order / inconsistent with regards to MPI-1 text in some  
places *because* MPI-2 was a separate document.

What about a slightly different proposal:

1. Move some of the existing Chapter 13/Language Bindings text into  
the relevant parts in the rest of the 2.1 doc (e.g., move the C++  
communicators discussion to the Right place in Chapter 5/Groups,  
Contexts, Comms).

2. Make a new chapter 3: Language Bindings.  Put in it:
    - All C/Fortran language bindings text from Chapter 2/Terms&Conv
    - All remaining text from Chapter 13/Language bindings

3. Remove the [now empty] Chapter 13

On Apr 4, 2008, at 7:48 AM, Rolf Rabenseifner wrote:
> About Chap. 13, especially C++.
>
> I'm proposing (referencec to MPI-2.1 Draft Apr.1, 2008):
>
> - The MPI-2 Forum decided to put only small overview stuff into
>  Chap. 2 Terms.
>  (I want to recall, that in MPI-2 the Terms are rewritten for whole  
> MPI,
>  i.e., still valid in MPI-2.1)
> - The MPI-2 Forum decided to put all deeper information into
>  extra sections of an additionally last chapter on Bindings.
> - The MPI-2 Forum already decided that normal C++ bindings
>  should be after the Fortran bindings.
>
> - Terms, page 18, lines 36-39 clearly expresses, that all constants  
> are
>  given only in MPI_ notation and that C++ names (with MPI::)
>  are given in Annex A.
>  I.e., MPI_COMM_WORLD, MPI_FLOAT, MPI_PROC_NULL, ... should not
>  to be translated everywhere in the chapters.
>  Same for Table 3.2 on page 27.
>
> - There are important things were C++ clearly differs from C,
>  e.g. the handling of the Status.
>  I have already added the Status handling, see page 31 lines 23-32.
>  (By the way, this information was missing in Chap. 13.1 and only
>  available in the Annex A.)
>
> - I'm not aware, whether there are more such stuff, that is explained
>  for C and Fortran and should be also explained for C++.
>  Do you see an additional stuff like status?
>
> - I do not expect that it would be a good idee to move all the ugly
>  Fortran problems (17 pages) to the beginning of thee book into
>  Chap. 2 Terms.
>  I would recommend same rule for C++ (12 pages).
>  Chap.2 terms has only 16 pages - with 2 pages dedicated to Fortran,
>  1/2 page to C, and 3 pages to C++.
>
> Best regards
> Rolf
>
> On Thu, 3 Apr 2008 15:13:10 -0400
> Jeff Squyres <jsquyres_at_[hidden]> wrote:
>> On Apr 3, 2008, at 12:09 PM, Rolf Rabenseifner wrote:
> ...
>>> For me, the answer may have implications on how separate or
>>> integrated additional bindings should be integrated into the
>>> language independent text of the MPI standard.
>>
>> I don't quite understand.  All officially-supported language bindings
>> should be listed consistently in the standard.  In MPI-2.1, for
>> example, that means alongside the language neutral bindings in the
>> text and in Annex A.
>
>
> -------------
>
> On Thu, 3 Apr 2008 15:27:08 -0400
> Jeff Squyres <jsquyres_at_[hidden]> wrote:
>> What about the C++/Fortran language bindings text?  Should the
>> majority of chapter 13 be merged into Terms and Conventions (and
>> elsewhere)?
>>
>> It's not really a "problem", per se -- but it is a little awkward.
>> There are sections in chapter 13 that could definitely fit in  
>> existing
>> text elsewhere.  Some of it is redundant, too.
>>
>>
>>
>> On Apr 3, 2008, at 3:19 PM, George Bosilca wrote:
>>> Bronis,
>>>
>>> If the data-type section get moved into the chapter 3 it make sense
>>> to merge the leftover of the chapter 11 with chapter 7, as long as
>>> we choose a right name. "MPI Environmental Management" is not the
>>> right chapter for "Generalized Requests". But of course these are
>>> just details.
>>>
>>> I'll get in touch with you asap to see how we can coordinate.
>>>
>>> Thanks,
>>>   george.
>>>
>>> On Apr 3, 2008, at 12:58 PM, Bronis R. de Supinski wrote:
>>>>
>>>> Rolf:
>>>>
>>>> Re:
>>>>> my general statements do not answer you initial question:
>>>>
>>>> My opinion is that leaving obvious problems unfixed based
>>>> on an expected future version is a bad idea. However, I
>>>> don't want to argue over this since I think the best
>>>> approach is just to remove them now and then we don't
>>>> have to worry about them. Others have more concerns over
>>>> the time that they can devote to this (not that I have an
>>>> abundance) and might want to delay in any event in order
>>>> to get it right (at least mostly).
>>>>
>>>>> If you decide to move parts from Chap.11 to  Chap.7,
>>>>> then you both mus discuss this. You both are responsible
>>>>> for these chapters.
>>>>> And you should first convince your reviewers:
>>>>> - Chap. 7: Rich, Jesper, Steve, Kannan, David, Bill
>>>>> - Chap.11: Bill and Rainer
>>>>> My recommendation:
>>>>> Express clearly which parts should be moved exactly to wich line
>>>>> (all based on page/line numbers as **printed** in Draft Apr. 1,
>>>>> 2008).
>>>>
>>>> I have discussed moving the datatype decoding stuff
>>>> with Rich and Bill. I will move those sections as I
>>>> suggested, with an initial pass for the current review.
>>>> This works well for Rich since he does not have time
>>>> to do this for another couple of weeks. I hope to get
>>>> that done today.
>>>>
>>>> For the remainder, I will look over the two chapters
>>>> (7 & 11) and propose an initial merge strategy. George
>>>> can react to that; I don't know how long it will take
>>>> me to get that done...
>>>>
>>>> Bronis
>>>>
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>>>
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>>
>>
>> -- 
>> Jeff Squyres
>> Cisco Systems
>>
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>
>
>
> Dr. Rolf Rabenseifner . . . . . . . . . .. email rabenseifner_at_[hidden]
> High Performance Computing Center (HLRS) . phone ++49(0)711/685-65530
> University of Stuttgart . . . . . . . . .. fax ++49(0)711 / 685-65832
> Head of Dpmt Parallel Computing . . . www.hlrs.de/people/rabenseifner
> Nobelstr. 19, D-70550 Stuttgart, Germany . (Office: Allmandring 30)
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-- 
Jeff Squyres
Cisco Systems