Author: Vincent Diepeveen
Date: 05:39:32 01/30/05
Go up one level in this thread
On January 30, 2005 at 00:28:47, Matthew Hull wrote: >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. You mean at a cluster?
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