[Caml-list] productivity improvement, Ensemble as an example

["Ohad Rodeh" <ORODEH@il.ibm.com>]

Which site have you been looking at?

The Ensemble site is at www.cs.cornell.edu/Info/Projects/Ensemble, there is
a link
to it from the Horus site (www.cs.cornell.edu/Info/Projects/Horus). As for
updates,
the last time the homepage was touched was 23-July-02, and the last
distribution is
from the same date.

As for complexity, it as actually gone done, and we've been able to throw
away some
code as OCaml has evolved. I don't think C has evolved much (C99 ?) in any
way that
it had helped us.

You can take my word for it, the line count, complexity etc. in a C version
that does the
same as Ensemble was a lot higher.

      Ohad.

-----------------------------------------------------------------------------------

Ohad Rodeh
tel: +972-3-6401641
IBM Haifa, storage research


                                                                                                                           
                      Oleg                                                                                                 
                      <oleg_inconnu@myrealbo        To:       sajuma@utu.fi                                                
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                      Sent by:                      Subject:  [Caml-list] productivity improvement (was: Rule based        
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                      27/07/2002 12:08                                                                                     
                                                                                                                           
                                                                                                                           



On Wednesday 24 July 2002 06:31 pm, sajuma@utu.fi wrote:

> Anyway, problems in memory management and modularity
> only appear when the programs become big. Usually big
> programs are not written in two languages, so comparison
> is hard. But the example of Horus vs. Ensemble shows that
> there is very large improvement.

Do you have links/references? (Although the fact that ML is more productive

than C is quite believable to me) I found Horus/Ensemble web site. It looks

like it has not been updated in 5 years[1]

> [...] why are you using C++?

It's very easy to give simple examples of when C++ is much more productive
than C in programs defined by their I/O (If anyone needs such examples: a)
reverse a file, b) reverse lines in a file c) /usr/bin/sort ). The
situation
seems to be different with O'Caml vs C++.

Regards,
Oleg

[1] Maybe the complexity has cought up with them eventually :)
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