From: Ben Goertzel (ben@webmind.com)
Date: Tue Jul 17 2001 - 19:47:42 MDT
It was true until very recently for all Windows and Linux *and Solaris*
JVM's. Sun claims they'll have a 64 bit JVM coming out sometime, but the
launch date has been frequently postponed.
I haven't tried IBM's new 64 bit JVM, actually, though I have read about it,
e.g.
http://service2.boulder.ibm.com/devtools/news0101/art14.htm
Interesting work at IBM on scalable Java is at
http://www.research.ibm.com/journal/sj39-1.html
All this is quite new, and I don't know how well it works. Experience shows
that marketing literature is a poor guide to actual functionality for such
systems. I do know IBM has invested a lot of time and money in this.
For us, when we decided to re-implement Webmind to change the *architecture*
(while keeping the mathematical and conceptual basis the same), it was a
tough choice whether to stick with Java (in light of all the progress IBM
and others are making, albeit slowly) or to go with C++. But ultimately, we
decided that if we were going to re-code the system for efficiency, we might
as well go all the way.
-- ben
> -----Original Message-----
> From: owner-sl4@sysopmind.com [mailto:owner-sl4@sysopmind.com]On Behalf
> Of James Rogers
> Sent: Tuesday, July 17, 2001 8:52 PM
> To: sl4@sysopmind.com
> Subject: Re: Flare
>
>
> On 7/17/01 4:42 PM, "Ben Goertzel" <ben@webmind.com> wrote:
> >
> > A JVM, being 32 bit as all current ones are, has only 2GB max memory
> > available to it, no matter how much memory is in the machine itself.
>
>
> This might be true if you are using intrinsically 32-bit
> platforms, but the
> JVMs for higher-end platforms and Big Iron can usually can do 64-bit
> addressing internally. While JVMs run in 32-bit mode by default, some of
> the JVMs for 64-bit platforms (e.g. Compaq and IBM) have a switch that
> allows you to fly past the 32-bit memory addressing limit.
>
> -James Rogers
> jamesr@best.com
>
>
>
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