Yokemate of Keyboards
Posts: 11631 from 2003/5/22
> I'm not sure what to think of IBM's idea to go backwards in time and turn the
> memory controller into a separate chip
"Interestingly, IBM, at the behest of the hyperscalers participating in the OpenPower effort, is dropping its “Centaur” memory buffer from the memory hierarchy with the Power9 chip aimed at scale-out architectures.
"The other big change with the Power9 SO chip is that IBM is going to allow the memory controllers on the die to reach out directly and control external DDR4 main memory rather than have to work through the “Centaur” memory buffer chip that is used with the Power8 chips. This memory buffering [...] is a hassle for entry systems designs and overkill for machines with one or two sockets. Hence, it is being dropped.
Current POWER roadmap depiction:http://openpowerfoundation.org/wp-content/uploads/2016/04/5_Brad-McCredie.IBM_.pdf
List of OpenPOWER-certified products:http://openpowerfoundation.org/new_resource_types/openpower-ready-products/
Edit: added more links[ Edited by Andreas_Wolf 18.09.2018 - 14:16 ]