Author: Matthew Hull
Date: 21:28:47 01/29/05
Go up one level in this thread
On January 30, 2005 at 00:02:42, Robert Hyatt wrote: >On January 29, 2005 at 14:03:00, Vincent Diepeveen wrote: > >>On January 29, 2005 at 11:35:54, Robert Hyatt wrote: >> >>>On January 29, 2005 at 08:20:07, Jason Kent wrote: >>> >>>>It looks like by the third quarter of this year, both intel and amd will be >>>>selling dual cores. Are they basically handled as two processors under task >>>>manager, and software? I'm guessing this is going mean that to get the most out >>>>of your cpu, you will have to buy all the Deep versions. Maybe that is why SMK >>>>decided to seperate the programs? >>>> >>>>Jason >>> >>>Dual cores will be two cpus with shared cache. This means your old dual-cpu MB >>>will have four real processors, or your old quad-cpu MB will now have 8 cpus. >> >>Actually each cpu will have for each core its own L2 cache. So at a single dual >>core cpu you will have 2 L2 caches. One for each core. >> >>That's both the case for intel and for AMD. >> >>Vincent > > >Yep. Each pair of cores will have a shared local memory. Was thinking of this >new NUMA issue when I wrote that. I'll be able to post some performance numbers >before too long, but I can't at present... I was curious if you would treat a group of MCMs (multi-chip modules - IBM terminology) as all NUMA or if it would be more efficient to design it as some kind of mix of NUMA and SMP.
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