From: ortmann@us.ibm.com
Cc: caml-list@inria.fr
Subject: Re: single-precision floats, etc.
Date: Fri, 27 Oct 2000 16:39:32 -0500 [thread overview]
Message-ID: <OF320DEF29.56B837F4-ON86256985.0076CC69@RCHLAND.IBM.COM> (raw)
Just curious ... would single-precision floats have been accurate enough
for the ICFP programming contest?
And how fast might they have been?
--
Daniel Ortmann, IBM Circuit Technology, Rochester, MN 55901-7829
ortmann@us.ibm.com / internal 8.553.6795 / external 507.253.6795
ortmann@isl.net home 507.288.7732
"The answers are so simple, and we all know where to look,
but it's easier just to avoid the question." -- Kansas
Chris Hecker <checker@d6.com>@inria.fr on 10/24/2000 10:22:20 PM
Sent by: Pierre.Weis@inria.fr
To: Charles Martin <martin@chasm.org>, caml-list@inria.fr
cc:
Subject: Re: single-precision floats, etc.
>I would want single floats for space, not speed!
On today's architectures, size == speed.
Single precision is also still faster for things like divides, sqrts, and
whatnot. And, as someone mentioned, the SIMD instruction sets are single
precision only (at least until Wilamette). But yes, size is the biggest
issue.
I'm going to check out the Bigarray package and see how it performs,
though.
Chris
next reply other threads:[~2000-10-28 16:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-27 21:39 ortmann [this message]
2000-10-29 6:18 ` Chris Hecker
-- strict thread matches above, loose matches on Subject: below --
2000-10-19 23:50 David Gurr
2000-10-20 13:02 ` jean-marc alliot
2000-10-18 1:17 David Gurr
2000-10-18 9:56 ` Chris Hecker
2000-10-17 16:10 Damien Doligez
2000-10-18 8:39 ` Remi VANICAT
2000-10-18 8:41 ` Fermin Reig
2000-10-18 9:51 ` Chris Hecker
[not found] <Chris Hecker's message of "Mon, 16 Oct 2000 11:20:59 -0700">
2000-10-16 18:20 ` Chris Hecker
2000-10-18 13:53 ` Pierre.Boulet
2000-10-18 15:20 ` Chris Hecker
2000-10-19 11:28 ` Stephan Houben
2000-10-19 11:37 ` Xavier Leroy
2000-10-20 2:18 ` Chris Hecker
2000-10-19 9:11 ` Xavier Leroy
2000-10-23 13:28 ` Charles Martin
2000-10-25 3:22 ` Chris Hecker
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