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Which Opterons support PC3200?

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Originally posted by: michaelpatrick33
that still means that you only have one active memory controller but the latency should be kept down to a mininum. You will have latency penalties with only one 128bit controller firing unfortunatelly

symmetrically configured means having the memory in bank 1 and bank 2 of each cpu and not ...

in bank 1 and 2 for the first cpu and bank 3 and 4 for the second cpu
Click to expand...
Each Opteron has two 64-bit controllers, not one 128-bit controller. So for two Opterons to both have their own two memory controllers running, according to Tyan, you would give CPU0's A1 and A2 slots one module each, and CPU1's A1 and A2 slots one module each. That configuration is represented by the 11th column in the chart on page 21.

I'm not saying it wouldn't work well with just two memory modules... GamePC did a Tiger v. Thunder comparison here and if you work through the benchmark results, it shows that it makes little difference in the CPU/memory performance. But of course I'm not suggesting this board to MichaelD since it lacks PCI-X, it just puts some numbers on what to realistically expect from 2 versus 4 modules. I pay no attention to the Sandra benchies, as I suspect none of the rest of us do either 😀

Another interesting one, that happens to include some PCI-X benchmarks for MichaelD to drool at, is this one 🙂 MLoot, you'll like that link too, it shows your board, or a variant of it 🙂
 
I know it is two 64bit controllers but I didn't want to confuse the issue more since they act as one 128 bit (marketing i know)controller just like ddr 400 is really 200mghtrz ram lol.


You will notice that it doesn't use the second cpu's memory controller but routes the memory through the first cpu via inter-cpu hypertransport. Some motherboads truly use both cpu memory controllers in dual 64bit (128bit) simultaneously for 12.8gigs per second available bandwidth.

So technically it only has one active dual 64bit controller. LOL The numbers, the schematics, the chills

I wonder if they used a true 64bit numa aware os with a multithread application if the numbers would be the same for the dual dual channel and the single dual channel? HMMMM
 
Originally posted by: mechBgon
Originally posted by: michaelpatrick33
that still means that you only have one active memory controller but the latency should be kept down to a mininum. You will have latency penalties with only one 128bit controller firing unfortunatelly

symmetrically configured means having the memory in bank 1 and bank 2 of each cpu and not ...

in bank 1 and 2 for the first cpu and bank 3 and 4 for the second cpu
Click to expand...
Each Opteron has two 64-bit controllers, not one 128-bit controller. So for two Opterons to both have their own two memory controllers running, according to Tyan, you would give CPU0's A1 and A2 slots one module each, and CPU1's A1 and A2 slots one module each. That configuration is represented by the 11th column in the chart on page 21.

I'm not saying it wouldn't work well with just two memory modules... GamePC did a Tiger v. Thunder comparison here and if you work through the benchmark results, it shows that it makes little difference in the CPU/memory performance. But of course I'm not suggesting this board to MichaelD since it lacks PCI-X, it just puts some numbers on what to realistically expect from 2 versus 4 modules. I pay no attention to the Sandra benchies, as I suspect none of the rest of us do either 😀

Another interesting one, that happens to include some PCI-X benchmarks for MichaelD to drool at, is this one 🙂 MLoot, you'll like that link too, it shows your board, or a variant of it 🙂
Click to expand...


Huh? The Thunder K8W is most certainly a PCI-X board. In fact, it's got all the bases covered. 33/66/100/133 PCI busses. 😀 Maybe I'm misunderstanding here? 😱

BTW, thanks very much for the linkage.!!! :thumbsup:
 
Originally posted by: michaelpatrick33
I know it is two 64bit controllers but I didn't want to confuse the issue more since they act as one 128 bit (marketing i know)controller just like ddr 400 is really 200mghtrz ram lol.


You will notice that it doesn't use the second cpu's memory controller but routes the memory through the first cpu via inter-cpu hypertransport. Some motherboads truly use both cpu memory controllers in dual 64bit (128bit) simultaneously for 12.8gigs per second available bandwidth.

So technically it only has one active dual 64bit controller. LOL The numbers, the schematics, the chills
Click to expand...
The Thunders do give both CPUs their own dedicated memory buses, that's what makes them Thunders and not Tigers or Tomcats 😀 You read the manual yet? Go look at the schematic on page 8 showing the logical arrangement of the buses, it'll make you drool too :evil:

edit: Michael, pay attention to your Tigers and Thunders, I was saying I didn't recommend the Tiger that happens to be the star of that review, because it does not offer PCI-X. 🙂
 
Whoops, my bad, mechBgon. I'm reading the review right now. I can't perceive how the Tiger would trump the Thunder...but I'm reading. BRB.
 
can you say microsoft professional non 64bit and very non numa aware. SMP yes but Intel style not opteron style plus where is the 64bit linux numa aware multi-threaded memory hungry applications lol
 
Originally posted by: michaelpatrick33
can you say microsoft professional non 64bit and very non numa aware. SMP yes but Intel style not opteron style plus where is the 64bit linux numa aware multi-threaded memory hungry applications lol
Click to expand...
LinuxHardware had some, but their site seems to have vanished 😛
 
Originally posted by: mechBgon
Originally posted by: michaelpatrick33
can you say microsoft professional non 64bit and very non numa aware. SMP yes but Intel style not opteron style plus where is the 64bit linux numa aware multi-threaded memory hungry applications lol
Click to expand...
LinuxHardware had some, but their site seems to have vanished 😛
Click to expand...

ahhh must be a SCO licensing issue
 
You do bring up an interesting question about what version of Windows MichaelD intends to use. Last I knew, he would need WinServer2003 Enterprise Edition to get NUMA enhancements. Or WinXP 64-Bit Edition perhaps?
 
Originally posted by: mechBgon
Originally posted by: michaelpatrick33
can you say microsoft professional non 64bit and very non numa aware. SMP yes but Intel style not opteron style plus where is the 64bit linux numa aware multi-threaded memory hungry applications lol
Click to expand...
LinuxHardware had some, but their site seems to have vanished 😛
Click to expand...

Mechbgon, did you mean this review?
 
Originally posted by: Mloot
Originally posted by: mechBgon
Originally posted by: michaelpatrick33
can you say microsoft professional non 64bit and very non numa aware. SMP yes but Intel style not opteron style plus where is the 64bit linux numa aware multi-threaded memory hungry applications lol
Click to expand...
LinuxHardware had some, but their site seems to have vanished 😛
Click to expand...

Mechbgon, did you mean this review?
Click to expand...
That's the one! 😎 I'll re-bookmark it.
 
Originally posted by: mechBgon
You do bring up an interesting question about what version of Windows MichaelD intends to use. Last I knew, he would need WinServer2003 Enterprise Edition to get NUMA enhancements. Or WinXP 64-Bit Edition perhaps?
Click to expand...

hmm. I have a copy of Server 2003 Standard, but don't intend to use that. Intend on using WinXP Pro, which IS dual processor capable. Thoughts?
 
Originally posted by: michaelpatrick33
dual processor capable yes but not numa aware. If you are only using a MSI board i wouldn't worry about it so much
Click to expand...

I'm reading the reviews comparing the Thunder to the MSI Far board right now. I'm not crazy about MSI boards though. Less than stellar rep in the past two years.
 
Originally posted by: MichaelD
Originally posted by: michaelpatrick33
dual processor capable yes but not numa aware. If you are only using a MSI board i wouldn't worry about it so much
Click to expand...

I'm reading the reviews comparing the Thunder to the MSI Far board right now. I'm not crazy about MSI boards though. Less than stellar rep in the past two years.
Click to expand...


I bought the MSI board a couple of months ago before I ever heard anything of their lawsuit and past reputation. So far, so good, and if it does go bad, hopefully it will still be under warranty.

Btw, why did MSI give their board such a long-winded name? I mean, it's no problem to say Tyan "Thunder" or "Tiger", and anyone researching Opterons will most likely know what you mean. But to say, "MSI K8T Master2-FAR" is just a bit much, don't you think?
 
MichaelD. The problem with MSI K8T Master2-FAR is that it has NO 64-bit PCI slots. You are still screwed. You need the Tyan.... (like me)
 
Originally posted by: Markfw900
MichaelD. The problem with MSI K8T Master2-FAR is that it has NO 64-bit PCI slots. You are still screwed. You need the Tyan.... (like me)
Click to expand...

Yep, you're absolutely right, Mark. MSI just totally hamstrung this board by not including at least ONE 64-bit slot.

AFAIAC, any dual-CPU board is a workstation or server board. Subsequently, and workstation or server board needs the support of a solid disk subsystem.
 
The MSI board is not meant as a HIGH end worstation board, but a good price low workstation system or high end gameing system board.

It would take another chip to add 64bit slots and they have to make the board bigger and it probable would not fit a standard ATX case.

The MSI board has USB2.0, True SATA, etc.. so it does have its plus's also. So it totally depends on what you want to do.
 
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