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From: eijiro_sumii@anet.ne.jp
To: Pierre.Weis@inria.fr
Cc: caml-list@pauillac.inria.fr, sumii@saul.cis.upenn.edu
Subject: Re: WWW Page of Team PLClub (Re: ICFP programming contest: results)
Date: Sat, 07 Oct 2000 12:21:03 -0400	[thread overview]
Message-ID: <20001007122103K.sumii@saul.cis.upenn.edu> (raw)
In-Reply-To: <200010070759.JAA00538@pauillac.inria.fr>

> > (It was Jerome who decided that, but anyway...)  The reason was
> > convenience: we could write matrix/vector multiplication by using
> > for-loops, for instance.  As for the efficiency,
> > "records > tuples = arrays (without boundary checks)" and as for the
> > safety, "records = tuples > arrays", I suppose.

Oh, sorry, I meant "to represent matrices and vectors" only.

> Not exactly, for efficiency:
> 
> records = tuples = array without boundary checks

Excuse me, but I'm a bit confused here...  What did Xavier mean in the
message below then?

| Subject: Re: ICFP programming contest: results
| From: Xavier Leroy <Xavier.Leroy@inria.fr>
| Date: Tue, 26 Sep 2000 10:55:21 +0200
| 
| > Could you also tell us to what extent the knowledge of the
| > implementation of Ocaml was needed in order to get good performance ?
| 
| The only important thing to know was that a record with three float
| fields is more efficient than a triple of floats.



  parent reply	other threads:[~2000-10-08 21:00 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-09-21  7:12 ICFP programming contest: results Xavier Leroy
2000-09-21 16:04 ` Brock
2000-09-24  3:36 ` Eijiro Sumii
2000-09-25  9:07   ` Jean-Francois Monin
2000-09-26  8:55     ` Xavier Leroy
2000-10-04 18:40   ` WWW Page of Team PLClub (Re: ICFP programming contest: results) eijiro_sumii
2000-10-05 21:19     ` malc
2000-10-06  9:46       ` Julian Assange
2000-10-06 19:10       ` eijiro_sumii
2000-10-06 20:13         ` eijiro_sumii
2000-10-06 20:05       ` eijiro_sumii
     [not found]         ` <200010070759.JAA00538@pauillac.inria.fr>
2000-10-07 16:21           ` eijiro_sumii [this message]
2000-10-08 21:06             ` Pierre Weis
2000-10-05 10:33 David McClain
2000-10-05 20:20 ` Stefan Monnier
2000-10-06 19:26   ` eijiro_sumii
2000-10-06  8:07 ` Xavier Leroy
2000-10-07  8:35   ` Pierre Weis
2000-10-07  9:55     ` Markus Mottl
2000-10-07 10:24       ` Pierre Weis
2000-10-08 21:26     ` John Max Skaller
2000-10-10 10:23       ` Pierre Weis
2000-10-09  5:51     ` Benjamin Pierce
2000-10-05 22:46 David McClain

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