[Beowulf] Win64 Clusters!!!!!!!!!!!!
gdjacobs at gmail.com
Wed Apr 11 15:43:07 EDT 2007
Jon Forrest wrote:
> The examples you give are very good reasons why there is
> a clear need for more than 32-bits of address space for
> data. Again, I agree completely. But, if you read my original
> posting, this is not what I'm talking about. I'm talking
> about the need for more than 32-bits of address space for
> instructions (a.k.a "text"). Why don't you run the "size"
> command on any of your big programs and report back what
> you find. My guess is that they'll be in the order
> of 10s of megabytes. (I agree that this method doesn't
> show the true run-time text-size requirements but
> it's a good first attempt).
Um, that would require distinct memory pools or some weird internal
mapping scheme. Not nice. Much better architecturally to have no
difference between pointers to instructions and pointers to data.
Geoffrey D. Jacobs
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