Josh Milthorpe <josh.miltho...@anu.edu.au> wrote on 12/15/2009 09:41:15
PM:
> Hi all,
>
> I have array-structured data that is calculated in one place, which I
> then want to make available to activities running at other places.
>
> The obvious way is to make the array the return value of a remote
> expression. This creates a remote reference to the array, but then
> access to each individual element must also be done by a remote
> expression, which is hardly efficient. Importantly the array data is
> calculated once and then never updated, so what is required is a final
> read-only snapshot of the array.
>
> AFAIK the only array-like class that can be transferred between places
> is ValRail. However this does not support arbitrary Regions as do
arrays.
>
> Is there an elegant way of transferring complete Array-like objects
> between places?
Not at the moment, sorry. However, the array library is due for a major
overhaul, and we have discussed immutable arrays in the past (in this
case, the distribution would probably be single-place). I don't recall
off-hand if there's a JIRA for immutable arrays with global contents
that can be replicated across places, but if there isn't, please open
one.
Igor
--
Igor Peshansky (note the spelling change!)
IBM T.J. Watson Research Center
XJ: No More Pain for XML's Gain (http://www.research.ibm.com/xj/)
X10: Parallel Productivity and Performance (http://x10.sf.net/)
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