Re: Multi-core and memory

On May 20, 5:15 pm, MitchAlsup <MitchAl...@[EMAIL PROTECTED]
> wrote:
> Opteron with its on-chip DRAM controller and on-board chip-to-chip
> interconnect has had multiple memory controllers for (=BFwhat?) 4.5
> years now.....

Actually, K8 had a dual-channel controller, meaning that it would keep
track of RAM resources for both channels, such as open pages, etc.
For example, if a RAM page was open, it was open on both channels.

With Barcelona though does have two independent controllers.  For
example, a RAM page on one "channel" might not have a corresponding
open page on the other "channel".

HTH