[jsdl-wg] Issues for todays phone conference

[Karl Czajkowski]

On Apr 12, Michel Drescher loaded a tape reading:
...
> 10) When/why did HostName change from 0-1 to 0-n? (reverted)
> 

At GGF-13 and who keeps trying to set it back to 1? :-)

It is 0-n to allow for resource selection of nodes in a parallel
job. Chris Smith has that use case with LSF and I can endorse it as a
useful thing for parallel jobs too (whether it is in GRAM today or
not!).  This goes hand-in-hand with the notion of there being a count
for the resource element, meaning multiple resources must be allocated
to match the same element.  The semantics is each resource MUST have
one of the names in the list. In other words, if there are more
hostnames listed than resources requested, not all names are utilized,
or the match predicate for a host is membership of that host's name in
the list.


karl

-- 
Karl Czajkowski
karlcz at univa.com