[ogsa-hpcp-wg] [OGSA-BES-WG] BES Last Call

Christopher Smith csmith at platform.com
Tue Feb 13 10:29:01 CST 2007


Right ... as Karl says.

-- Chris


On 12/2/07 23:04, "Karl Czajkowski" <karlcz at univa.com> wrote:

> On Feb 13, Andreas Savva modulated:
> ...
>> I asked the initial question because I could not understand why the case
>> of giving an OS value from the JSDL-defined enumeration (well-defined
>> presumably) would fall in the same category as that of specifying a
>> fractional or negative value for CPUCount.
>> 
> 
> I think Chris sees this as an "out of range" error for the
> implementation, without distinguishing necessarily between
> "consistent, but not available in my resource manager", and
> "inconsistent".  It is just a constraint that fails to match.
> 
> In the general case, this distinction may be incomputable, though some
> (optional) validation and analysis could weed out common
> inconsistencies before handing the constraint to the solver. (Right,
> Chris?)
> 
> This is an area where I can see the value in being liberal in the
> specification requirements to allow for a range of implementations.
> The only issue is making sure the concept space is modeled such that a
> less discerning implementation returns a more generic error and not a
> detailed but mischaracterized description of what is going on... it is
> that latter bit which pollutes the value of the detailed faults from
> an interop point of view.
> 
> 
> karl



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