From: skaller <skaller@users.sourceforge.net>
To: Jon Harrop <jon@ffconsultancy.com>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Comparison of OCaml and MLton for numerics
Date: Tue, 05 Jun 2007 04:08:08 +1000 [thread overview]
Message-ID: <1180980488.6220.18.camel@rosella.wigram> (raw)
In-Reply-To: <200706041539.03286.jon@ffconsultancy.com>
On Mon, 2007-06-04 at 15:39 +0100, Jon Harrop wrote:
> A functional array implemented as a balanced binary tree needs the number of
> elements (size) of a sub tree just to index into the tree.
It might be worth considering a functional version of Judy arrays:
http://judy.sourceforge.net/
They're fairly close to ideal: all operations are O(1),
they never need rebalancing, and they work just as well with
sparse arrays as compact ones. Judy arrays are digital tries
with compressed nodes. It's not clear whether a functional
variation would retain the performance claimed for the mutable
version.
--
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net
next prev parent reply other threads:[~2007-06-04 18:08 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-31 5:50 Yuanchen Zhu
2007-05-31 6:17 ` [Caml-list] " Jon Harrop
2007-05-31 6:32 ` skaller
2007-05-31 7:31 ` Yuanchen Zhu
2007-05-31 9:08 ` Jon Harrop
2007-05-31 9:22 ` Yuanchen Zhu
2007-05-31 10:27 ` Jon Harrop
2007-05-31 21:30 ` Alain Frisch
2007-06-01 1:22 ` skaller
2007-06-01 1:36 ` Erik de Castro Lopo
2007-06-01 2:21 ` skaller
2007-06-01 2:49 ` Erick Tryzelaar
2007-06-01 3:05 ` skaller
2007-06-01 5:30 ` Alain Frisch
2007-06-01 5:39 ` Jon Harrop
2007-06-01 6:36 ` Yuanchen Zhu
2007-06-01 8:09 ` skaller
2007-06-01 8:53 ` Richard Jones
2007-06-01 8:59 ` Richard Jones
2007-06-01 9:22 ` Stephan Tolksdorf
2007-06-01 9:49 ` Richard Jones
2007-06-01 9:32 ` Stephan Tolksdorf
2007-06-01 10:02 ` skaller
2007-06-01 11:29 ` Yaron Minsky
2007-06-01 11:43 ` Erik de Castro Lopo
2007-06-01 11:58 ` Jon Harrop
2007-06-01 13:49 ` Julien Signoles
2007-06-01 14:18 ` Stephen Weeks
2007-06-01 14:43 ` Julien Signoles
2007-06-01 14:57 ` Brian Hurt
2007-06-01 15:40 ` Alain Frisch
2007-06-01 15:58 ` Brian Hurt
2007-06-01 16:25 ` Markus Mottl
2007-06-01 16:47 ` Jon Harrop
2007-06-01 23:26 ` skaller
2007-06-01 23:49 ` Brian Hurt
2007-06-02 3:26 ` skaller
2007-06-01 12:40 ` Erik de Castro Lopo
2007-06-01 13:56 ` Julien Signoles
2007-06-01 11:49 ` David MENTRE
2007-06-01 14:41 ` skaller
2007-06-01 16:52 ` Jon Harrop
2007-06-01 23:33 ` skaller
2007-06-01 16:14 ` Markus Mottl
2007-06-01 16:46 ` Jon Harrop
2007-06-01 17:13 ` Jon Harrop
2007-06-04 14:03 ` Mike Furr
2007-06-04 14:39 ` Jon Harrop
2007-06-04 15:33 ` Mike Furr
2007-06-04 18:08 ` skaller [this message]
[not found] ` <9d3ec8300706041518y115d22bdsa120d4010261d841@mail.gmail.com>
2007-06-04 22:19 ` Fwd: " Till Varoquaux
2007-06-04 23:40 ` Jon Harrop
2007-06-05 2:24 ` skaller
2007-06-04 22:44 ` Pierre Etchemaïté
2007-06-05 1:42 ` Jon Harrop
2007-06-05 10:30 ` Jon Harrop
2007-06-10 12:10 ` Jon Harrop
2007-06-10 12:58 ` skaller
2007-06-01 14:15 ` Stephen Weeks
2007-06-01 14:37 ` Brian Hurt
2007-06-01 14:39 ` Eric Cooper
2007-05-31 9:24 ` Yuanchen Zhu
2007-05-31 10:25 ` Loup Vaillant
2007-05-31 10:30 ` Jon Harrop
2007-05-31 12:12 ` skaller
2007-05-31 7:11 ` Daniel Bünzli
2007-05-31 15:15 ` Christophe Raffalli
2007-05-31 15:23 ` Jon Harrop
2007-05-31 15:35 ` Christophe Raffalli
[not found] ` <604682010705310923o5a1ee0eiee5ae697da9d3c60@mail.gmail.com>
2007-05-31 20:14 ` Stephen Weeks
2007-05-31 15:16 ` Christophe Raffalli
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