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Pascal Obry <[log in to unmask]>
Mon, 4 Sep 2006 18:47:56 +0200
text/plain (37 lines)
Dirk Craeynest a écrit :

> Most often, and in this announcement as well, only "add-on" approaches
> (such as OpenMP) are mentioned but not those built-in in a language
> (such as Ada tasking and protected objects).  I quote:

Indeed. Most of the time people want parallelism with OpenMP/MPI. This
is quite low level compared to Ada. Maybe a good approach to this is to
point out that OpenMP/MPI is the procedural way to handle parallelism,
Ada goes far beyond as it has unified the OO paradigm and the
parallelism/concurrency. So in a sense the Ada solution (and Java if I
can pronounce this word here :) is the "revolution" with have seen with
the OO paradigm in the nineties.

Also note that OpenMP is a solution to vector based parallelism, and
this is far from being 100% of the problem. Most scientist applications
are designed with 3 stages : read data, do some computation (not always
vector based), write some data. OpenMP can't be used on stage 1 and 3.
Ada is not imposing any way of designing/implementing the parallelism
and can do great job at the three stages.

I don't know what to do at the moment with that... but I'll work very
soon on converting some sequential applications to parallel applications.



--| Pascal Obry                           Team-Ada Member
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