[ogsa-bes-wg] Questions and potential changes to BES, as seen from HPC Profile point-of-view

[Michel Drescher]

Hi Donal, Marvin, all,

Donal K. Fellows wrote:
> Marvin Theimer wrote:
>> I suspect you'll see more specification of binary executable as time
>> goes on.  As people purchase multiple clusters with somewhat different
>> hardware and as they add new hardware to existing clusters they end up
>> with heterogeneous environments where the exact choice of hardware
>> really does matter.  For example, running numerical libraries that have
>> been optimized for Intel or AMD on the opposite chip type can yield
>> substantial performance penalties.
> 
> The right thing to do is to specify that you need the library using some
> kind of abstract name for it, and leave it to the BES container to
> figure out how to do that efficiently on the hardware allocated.

this is already included in the BES specification as a non-formal JSDL 
1.0 extension. It has been incorporated from the ESI proposal, as a 
"esi:Library" element (the namespace probably needs adjustment).

See also BES spec v1.3, page 16 (ch. 6.1.5 JSDL 1.0 Extensions)

Cheers,
Michel

-- 
Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com
Fujitsu Laboratories of Europe
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