jkunz at unixag-kl.fh-kl.de
Tue May 6 14:58:03 CDT 2003
On 2003.05.06 20:45 Dave McGuire wrote:
> The J90 pulls about 5.5kW. That's usually doable
Yes, that sounds not too bad.
> but I'm on a
> startup company salary. My normal power bill here is about $450/mo,
> running the J90 would push that up to over $1K.
Make the machine available on the net and everyone who wants a login is
expected to make a donatation to pay the power? The cray-cyber people do
it that way.
> > Crays don't do IEEE FP? Why? Historical reasons? (AFAIK the Cray 1
> > predates IEEE FP like VAX.)
> Newer ones do. Yes, the Cray 1 predates IEEE, but most later
> machines weren't based on the Cray 1 architecture.
My thought was that they have a (slightly) other architecture but
carried on the FP format. Like Alpha inhirited some VAX float formats.
> There was the X/MP family, the Cray-2, -3, and -4,
> but pretty much everything else is YMP
> architecture, including the J90.
Hmmm. Now that I have a login on a YMP I should learn more about the
different Cray architectures.
More information about the rescue