By: David Kanter (dkanter.delete@this.realworldtech.com), September 15, 2007 7:50 am
Room: Moderated Discussions
unknown (un@known.net) on 9/15/07 wrote:
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>David Kanter (dkanter@realworldtech.com) on 9/14/07 wrote:
>>It's very straight forward - if different regions of memory have different latencies
>>then the system is NUMA. If all memory has the same latency, then the system is UMA. It cannot be both.
>
>By that logic, turning on Node Interleave on the Opteron >would make it UMA (?)
Yes, that's right. I believe the idea behind node interleave is to have a mode that works effectively for operating systems with no, or poor NUMA support.
DK
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>David Kanter (dkanter@realworldtech.com) on 9/14/07 wrote:
>>It's very straight forward - if different regions of memory have different latencies
>>then the system is NUMA. If all memory has the same latency, then the system is UMA. It cannot be both.
>
>By that logic, turning on Node Interleave on the Opteron >would make it UMA (?)
Yes, that's right. I believe the idea behind node interleave is to have a mode that works effectively for operating systems with no, or poor NUMA support.
DK