[Pgi-wg] OGF PGI - Requirements for Job Description - Process for mutual understanding

[Etienne URBAH]

Morris, Johannes and all,

Concerning the OGF PGI requirements for Job Description :

Each requirement for Job Description implicitly contains one or several 
underlying requirements for the Execution Service.

In order to ease mutual understanding, I suggest, for each requirement 
for Job Description, to answer to following questions in a precise order :

A) What is the precise underlying requirement for the Execution Service ?

Focusing on this underlying requirement for the Execution Service :

B) Is it really needed ?

C) How much does the current JSDL recommendation permit to express it ?
    What is the gap ?

D) Is it possible to conceptually define an extension of the current 
JSDL recommendation in order to express it ?  (NO XML at this step)

E) If not, what is the conceptual proposal for a modification of the 
current JSDL recommendation in order to express it ?  (NO XML at this step)

F) Proposal of an example written in XML.


For each requirement, we do NOT need to answer all questions 
immediately, but we need to answer them in this precise order, and in 
particular NOT to begin with an XML example (which is implementation 
detail).

Best regards.

-----------------------------------------------------
Etienne URBAH         LAL, Univ Paris-Sud, IN2P3/CNRS
                       Bat 200   91898 ORSAY    France
Tel: +33 1 64 46 84 87      Skype: etienne.urbah
Mob: +33 6 22 30 53 27      mailto:urbah at lal.in2p3.fr
-----------------------------------------------------


On Mon, 04/10/2010 18:41, Etienne URBAH wrote:
> Morris, Johannes and all,
>
> Concerning the OGF PGI requirements for Job Description :
>
> I have updated the Wiki page at
> http://forge.gridforum.org/sf/wiki/do/viewPage/projects.pgi-wg/wiki/RequirementsTable
> and the detailed pages for Job Description according to Amsterdam
> meeting 28-29 April 2010.
>
> So you can add you own comments and suggestions in the detail pages.
>
> If you find any inaccuracy, please correct it directly or add a comment
> in the appropriate detail page.
>
> Best regards.
>
> -----------------------------------------------------
> Etienne URBAH LAL, Univ Paris-Sud, IN2P3/CNRS
> Bat 200 91898 ORSAY France
> Tel: +33 1 64 46 84 87 Skype: etienne.urbah
> Mob: +33 6 22 30 53 27 mailto:urbah at lal.in2p3.fr
> -----------------------------------------------------
>
>
> On Thu, 30/09/2010 20:14, Etienne URBAH wrote:
>> Morris, Johannes and all,
>>
>> Concerning the OGF PGI requirements for Job Description :
>>
>>
>> From the EDGI use case 'Marshal Activities from Service Grid to Desktop
>> Grid', the most important requirements, sorted by decreasing priority,
>> are :
>>
>> JD3 (100) The Job Description document MUST reference all grid entities
>> in conformance to the GLUE specification
>>
>> JD11 (107) Job Description should be only used for Job Description not
>> for any kind of feedback. Job status information should not be
>> communicated with a 'changed JSDL'
>>
>> JD4 (101) The Job Description document specification MUST permit the
>> Client to request automatic data stage-in and stage-out
>>
>> JD22 (116) Clearly separate file and directory in the data-stagings.
>> e.g. within the job description the element should be clearly labeled as
>> file or directory, e.g. different aspect of handling directory or a file
>>
>>
>> The other requirements labeled 'yes' are welcome, EXCEPT the 2 following
>> ones, which generate too much COMPLEXITY in the Execution Service :
>>
>> JD6 (103) The Job Description document specification MUST permit the
>> Client to request that at specified Activity states, the Execution
>> service sets the Activity on 'Hold' [NO]
>>
>> JD8 (105) Job Description supports, 1) service-directed data-staging
>> (i.e. specify data-stagings),2) client-initiated data-staging (i.e.
>> specifiy data-staging but service will do nothing only control whether
>> files existing), 3) manual data-staging (i.e. no specification of
>> data-staging elements) [NO]
>>
>>
>> Best regards.
>>
>> -----------------------------------------------------
>> Etienne URBAH LAL, Univ Paris-Sud, IN2P3/CNRS
>> Bat 200 91898 ORSAY France
>> Tel: +33 1 64 46 84 87 Skype: etienne.urbah
>> Mob: +33 6 22 30 53 27 mailto:urbah at lal.in2p3.fr
>> -----------------------------------------------------
>

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