[mpiwg-tools] MPI_T question about cvar value guarantees

[Schulz, Martin]

Yes, I agree, we should probably submit an errata for this text.

Martin


On 2/5/16, 4:50 PM, "mpiwg-tools on behalf of Jeff Squyres (jsquyres)"
<mpiwg-tools-bounces at lists.mpi-forum.org on behalf of jsquyres at cisco.com>
wrote:

>> On Feb 5, 2016, at 4:26 PM, Schulz, Martin <schulz6 at llnl.gov> wrote:
>> 
>> That¹s a good question and I don¹t think we say - my original intent
>>when
>> writing the document (based on my personal model that I had in my head
>>for
>> this) was to provide no guarantees once MPI_T gets uninitialized, so in
>> this case both versions would be OK. In fact, it could be even worse -
>> what happens in case 1 if the component is not reloaded? Do you still
>>have
>> access to the variable at all? This is probably more likely if the MPI_T
>> only block is after MPI_Finalize (since this would unload components),
>>but
>> the principle is the same.
>> 
>> For the discovery/query routines we state that the numbering is not
>> allowed to change between ³runs², which may have been the wrong thing to
>> say - it probably should say ³while MPI_T is initialized². In this case,
>> there would really not be any guarantees at all. If you wanted
>>guarantees,
>> you would have to keep MPI_T initialized.
>
>That sounds fine to me.  I think that this is worth an errata.
>
>-- 
>Jeff Squyres
>jsquyres at cisco.com
>For corporate legal information go to:
>http://www.cisco.com/web/about/doing_business/legal/cri/
>
>_______________________________________________
>mpiwg-tools mailing list
>mpiwg-tools at lists.mpi-forum.org
>http://secure-web.cisco.com/1YQzVZ9p1gLekoVYv9VGQ_-CNEYsPlQQtkva9wBeUEuV5I
>NONI4Nm-vTVCCxm4xjArNq97pldPUVCOWShL7-hhjDh_0uYjZ9MYdA28tvg1pIvOl8shxbRxZh
>3FbapA2wu5Q99HsmgPLjCxBBGktJijRvb9BIcaGKHBzMAFlDIX_mz5BZNMo2JRmvTX1neOfbyF
>PTV_rVef2O7blagdgDD7YOeu54XlV9ImkS8qcvLeGLcxfmzeu1pPNMN4IoiiAao7Iz2Xh9y7MM
>dtqOZi6XcylO9kxyregmJifR44SqEhZukURI8THsglPLQvSmkYM0iVJuc9ZlEXl9nruau-AFKa
>VH8WgAzBQkDzVeG2StEuxo/http%3A%2F%2Flists.mpi-forum.org%2Fmailman%2Flistin
>fo.cgi%2Fmpiwg-tools
>