From: Jonathan Guthrie <jguthrie@brokersys.com>
Subject: Re: Fortran or Ada?
Date: 1998/10/06
Date: 1998-10-06T00:00:00+00:00 [thread overview]
Message-ID: <6vdui0$mr3$1@news.hal-pc.org> (raw)
In-Reply-To: 6vdmac$3nt$1@newnews.nl.uu.net
In comp.lang.ada Toon Moene <toon@moene.indiv.nluug.nl> wrote:
> There are about 2**(23*2) single precision floating division pairs because
> only the mantissa was relevant (give or take a factor of two). Given that
> the Pentium could natively do an FDIV in 39 cycles, that means that at 78 Mhz
> (for ease of reference), you'd need 2**45/10**6 seconds, or about (2**20 ~
> 10**6) 32 million seconds ~ 1 year. Note that this is just the time for the
> FDIVs, not the comparisons.
> I would be interested in a testing strategy that would do an exhaustive
> search on the double precision space.
You mean OTHER than building 10,000 demo boards and running the tests in
parallel? (Realize that they sold the pentium processors for at least
twice what the demo boards would likely cost and the fact that the
exhaustive test would mean nothing to the marketability of the processors
actually running the test so they could be sold at full price.)
10,000 too many to justify getting the results in less than an hour?
(Not surprising: It would take far longer than that to set up such a
test.) Well, 300 gets the test done in about a day and is a lot easier
to set up. If you're willing to wait a week for results, then about 50
will do the job. I would expect them to actually do 10-12 and get the
results in about a month. After all, the testing process usually takes
longer than a month to complete and involves building a number of those
simple SBC's.
--
Jonathan Guthrie (jguthrie@brokersys.com)
Information Broker Systems +281-895-8101 http://www.brokersys.com/
12703 Veterans Memorial #106, Houston, TX 77014, USA
We sell Internet access and commercial Web space. We also are general
network consultants in the greater Houston area.
next prev parent reply other threads:[~1998-10-06 0:00 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <36068E73.F0398C54@meca.polymtl.ca>
1998-09-22 0:00 ` Fortran or Ada? Gisle S{lensminde
1998-09-22 0:00 ` Jeff Templon
1998-09-22 0:00 ` Rakesh Malhotra
1998-09-22 0:00 ` Larry Kilgallen
1998-09-22 0:00 ` Corey Minyard
1998-09-22 0:00 ` dewarr
1998-09-23 0:00 ` Jeff Templon
1998-09-23 0:00 ` Corey Minyard
1998-09-24 0:00 ` Joel Seidman
1998-09-24 0:00 ` Craig Burley
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` Jonathan Guthrie
1998-09-26 0:00 ` Craig Burley
1998-09-26 0:00 ` dewarr
1998-09-26 0:00 ` Robert B. Love
1998-09-26 0:00 ` Craig Burley
1998-09-24 0:00 ` Marc A. Criley
1998-09-24 0:00 ` dewarr
1998-09-24 0:00 ` Robert I. Eachus
1998-09-24 0:00 ` William Clodius
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` Robert I. Eachus
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` jbs
1998-09-26 0:00 ` dewarr
1998-09-28 0:00 ` jbs
1998-09-29 0:00 ` Dean F. Sutherland
1998-09-29 0:00 ` Gautier.DeMontmollin
1998-09-29 0:00 ` Dean F. Sutherland
1998-09-29 0:00 ` William B. Clodius
1998-09-30 0:00 ` jbs
1998-09-30 0:00 ` William Clodius
1998-09-30 0:00 ` dewarr
1998-09-30 0:00 ` jbs
1998-09-30 0:00 ` William Clodius
1998-10-03 0:00 ` Niklas Holsti
1998-10-03 0:00 ` Toon Moene
1998-10-03 0:00 ` Niklas Holsti
1998-10-03 0:00 ` Toon Moene
1998-10-04 0:00 ` Niklas Holsti
1998-10-05 0:00 ` Michel OLAGNON
1998-10-05 0:00 ` Ian St. John
1998-10-05 0:00 ` Richard D Riehle
1998-10-05 0:00 ` dewarr
1998-10-05 0:00 ` dewarr
1998-10-05 0:00 ` Ian St. John
1998-10-06 0:00 ` dewarr
1998-10-06 0:00 ` James Giles
1998-10-06 0:00 ` Mark A Biggar
1998-10-06 0:00 ` James Giles
1998-10-07 0:00 ` dewarr
1998-10-07 0:00 ` dewarr
1998-10-06 0:00 ` Ian St. John
1998-10-08 0:00 ` Gary L. Scott
1998-10-08 0:00 ` Offtopic Airport Diversion (Was: Fortran or Ada?) Harold Stevens ** PLEASE SEE SIG **
1998-10-08 0:00 ` Ian St. John
1998-10-06 0:00 ` Fortran or Ada? Toon Moene
1998-10-06 0:00 ` Jonathan Guthrie [this message]
1998-10-06 0:00 ` Michel OLAGNON
1998-10-07 0:00 ` Ian St. John
1998-09-29 0:00 ` Dean F. Sutherland
1998-10-02 0:00 ` Robert I. Eachus
1998-10-02 0:00 ` jbs
1998-10-02 0:00 ` William Clodius
1998-10-03 0:00 ` jbs
1998-10-03 0:00 ` Larry Elmore
1998-10-06 0:00 ` Robert I. Eachus
1998-10-06 0:00 ` Pat Rogers
1998-10-02 0:00 ` Geoff Bull
1998-09-24 0:00 ` Jeff Templon
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` Dale Stanbrough
1998-09-30 0:00 ` Daniel Barker
1998-09-30 0:00 ` Lawrence Kirby
1998-10-01 0:00 ` Aaron Crane
1998-10-02 0:00 ` Fortran or Ada or gobbledygook? Wes Groleau
1998-10-05 0:00 ` Fortran or Ada? Terry Devine
[not found] ` <6udre0$ha1$1@nnrp1.dejane <6utg60$h6l$1@nnrp1.dejanews.com>
1998-10-01 0:00 ` robin_v
1998-09-23 0:00 ` Frank Ecke
1998-09-23 0:00 ` bglbv
1998-09-23 0:00 ` Robert I. Eachus
1998-09-24 0:00 ` Richard D Riehle
1998-09-23 0:00 Marin David Condic, 561.796.8997, M/S 731-96
1998-09-23 0:00 ` Gisle S{lensminde
1998-09-24 0:00 ` John McCabe
1998-09-24 0:00 ` Dean F. Sutherland
1998-09-24 0:00 ` Gisle S{lensminde
1998-09-24 0:00 ` Samuel T. Harris
-- strict thread matches above, loose matches on Subject: below --
1998-09-23 0:00 Marin David Condic, 561.796.8997, M/S 731-96
1998-09-24 0:00 Walt Brainerd
1998-09-25 0:00 ` dewarr
1998-09-25 0:00 ` Robert I. Eachus
1998-10-05 0:00 Robert I. Eachus
1998-10-05 0:00 robin
1998-10-05 0:00 Condic, Marin D.
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