Memory part 4: NUMA support

Memory part 4: NUMA support

Posted Oct 25, 2007 12:47 UTC (Thu) by joib (guest, #8541)
In reply to: Memory part 4: NUMA support by dlang
Parent article: Memory part 4: NUMA support

the Opteron already has versions that have four HT links, they are the 800/8000 series chips targeted at 8 cpu systems

That is not correct. All current Opterons (including the 800(0) series) have 3 HT links. The difference is that in the 800(0) series all 3 HT links are cache coherent, whereas there is only one cache coherent link on the 200(0) series and none on the 100(0) series (and athlon64).

That being said, the recently released quad core Opterons do in principle support 4 HT links, but so far they are using the existing socket so they are limited to 3 links until the next generation socket is introduced.

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