From: "Brian R. Hanson" <brh@cray.com>
Subject: Re: The disturbing myth of Eiffel portability
Date: 1996/12/02
Date: 1996-12-02T00:00:00+00:00 [thread overview]
Message-ID: <32A2F7B4.41C6@cray.com> (raw)
In-Reply-To: dewar.849443758@merv
Robert Dewar wrote:
> The old style vector machine Crays (to which P&H refers) definitely are
> NOT IEEE, or even close, and as per my previous message use reciprocal
> hardware for division, meaning that division results can be off by one bit.
> Implementing Java efficiently on those machines, which are now largely
> obsolete, is out of the question.
>
> Newer Crays are multiprocessors using at the moment Alpha's, although
> considering the ownership, one might expect them to shift to MIPS chips
> in the future. But in either case, we are talking about chips that are
> subtly IEEE incompatible, as per my previous message.
The machines refered to in the previous paragraph are the Massively
Parallel
machines but it is also true that the latest top of the line cray vector
machines now do IEEE floating point.
-- Brian Hanson
-- brh@cray.com
next prev parent reply other threads:[~1996-12-02 0:00 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-11-15 0:00 The disturbing myth of Eiffel portability The Rt Rev'd Colin James III, KOTM 1/96
1996-11-17 0:00 ` Lawrence Kirby
1996-11-17 0:00 ` The Rt Rev'd Colin James III, KOTM 1/96
1996-11-18 0:00 ` James Youngman
1996-11-20 0:00 ` Piercarlo Grandi
1996-11-21 0:00 ` Paul Johnson
1996-11-27 0:00 ` Piercarlo Grandi
1996-11-28 0:00 ` Don Harrison
1996-11-29 0:00 ` Piercarlo Grandi
1996-11-29 0:00 ` Don Harrison
1996-11-30 0:00 ` Piercarlo Grandi
1996-12-01 0:00 ` Jon S Anthony
1996-12-02 0:00 ` Piercarlo Grandi
1996-11-29 0:00 ` Piercarlo Grandi
1996-11-29 0:00 ` Robert Dewar
1996-11-29 0:00 ` Robert Dewar
1996-11-20 0:00 ` Jeff Miller
1996-11-20 0:00 ` Piercarlo Grandi
1996-11-17 0:00 ` Eoin Woods
1996-11-18 0:00 ` Stephen J Bevan
1996-11-19 0:00 ` Kaz Kylheku
1996-11-19 0:00 ` Robert Dewar
1996-11-20 0:00 ` Larry Kilgallen
1996-11-21 0:00 ` Robert Dewar
1996-11-22 0:00 ` Larry Kilgallen
1996-11-22 0:00 ` Robert Dewar
1996-12-01 0:00 ` Graham C. Hughes
1996-12-01 0:00 ` Robert Dewar
1996-12-02 0:00 ` Brian R. Hanson [this message]
1996-12-06 0:00 ` Robert Dewar
1996-12-09 0:00 ` Brian R. Hanson
1996-11-26 0:00 ` Van Snyder
1996-11-22 0:00 ` Ken Garlington
1996-11-25 0:00 ` Robert Dewar
1996-11-20 0:00 ` Matt Kennel
1996-11-22 0:00 ` Robert Dewar
1996-11-21 0:00 ` Francois Labreque
1996-11-21 0:00 ` Kaz Kylheku
1996-11-24 0:00 ` Robert Dewar
1996-11-21 0:00 ` Keith Thompson
1996-11-21 0:00 ` Robert Dewar
1996-11-22 0:00 ` Norman H. Cohen
1996-11-24 0:00 ` Lawrence Kirby
1996-11-20 0:00 ` James Mansion
1996-11-20 0:00 ` Kaz Kylheku
1996-11-25 0:00 ` Joachim Durchholz
1996-11-26 0:00 ` Lawrence Kirby
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