yeah let's see some dual head action!! :D
again, great to have you back S7 :toast:
Printable View
yeah let's see some dual head action!! :D
again, great to have you back S7 :toast:
I had a few issues with the mobo last night. It seemingly is crapping out on me. I haven't changed a single setting, but windows is periodically bsoding now. I have a feeling it has something to do with the voltage being supplied to the RAM as it's the messages are relating to memory errors. Gonna see if I can RMA it today.
Of course I've thought about throwing this setup under the autocascade. I first want to get familiar with the HW and then consider it. I have a feeling that these cpu's won't have much of an issue running in the cold. If you guys recall, the stepping info which I derived from the AMD cpu's would lead one to believe that these Opties are non-bugged....for reference:
http://www.xtremesystems.org/forums/...ad.php?t=87182
http://www.xtremesystems.org/forums/...ad.php?t=87232
Now check the first post of this thread.....yep, these cpu's are BB's :cool:
@Stevil: I already have an HWBOT account. I'm just gonna sit on the fence for a bit ;)
Hmm too bad the board aint working right :/
In case you RMA the board, which means you have to take the CPUs out again, please measure the IHS for me in case you forgot :)
Maybe a stupid question to ask, but have you tried different sticks of ram or different slots? You said you are using ES ram, so the board might not like it?
hmm, the s939 CCBBE opterons are heavily coldbugged... :(
No, the problem is that some data is stored in the wrong NUMA bank.Quote:
Originally Posted by \Karting_freak
I will ;) Tried everything...getting a new board today :DQuote:
Originally Posted by Fr3ak
@Biohead: Are they really? I guess I've been away longer than I thought...haven't kept up to speed on current cpu's :p:
@Uopt: So I guess the only solution would be to either get another 2gb of memory or enable node interleaving?
@s7e9h3n
Best way is to go with another 2GB of RAM and NUMA aware OS (not XP x32).
Node interleaving will help with slower scores but worsen better ones.
My another suggestion is to put one memory stick for each CPU making it Single Channel per processor. This should be fastest solution if you don't want to invest in extra RAM ;) (still XP x64/Linux/Vista recommended due to proper NUMA support).
Have fun with testing and get your Vapo on these babes :D !
Quote:
Originally Posted by Lightman
Fellas, what is this NUMA stuff? Heard it mentioned a couple time but have no clue what it is. Time for some googling i guess...
Edit: Found some interesting stuff on NUMA:
"NUMA platforms must be supported both by OS (at least the operating system and applications should be able to "see" memory of all processors as a whole memory block) and by applications. The latest versions of Windows XP (SP2) and Windows Server 2003 fully support NUMA systems (Physical Address Extension must be enabled in 32bit versions (/PAE in boot.ini), which is fortunately enabled by default in AMD64 platforms, as it's required by Data Execution Prevention). What concerns applications, it first of all means that a program shouldn't deploy its data in the memory of one processor and then access it from the other processor. The effect of sticking to this recommendation or failing to comply with it will be reviewed now."
So does XP32 support NUMA???
Ply
NUMA - Non Unified Memory Architecture ;)Quote:
Originally Posted by Plywood99
In short NUMA is when each CPU can access it's own local memory and also 'remote' memory of other CPUs connected witch each other. You can extend this to clusters but idea is same.
With UMA every CPU is connected with ONE memory pool in way similar to star topology.
Basically go to Wiki or other knowledge mine for much more.
Found a very nice read on NUMA hear:
http://www.digit-life.com/articles2/cpu/rmma-numa.html
Sorry for o.t. S7. But this opty server stuff is interesting...
Ply
hey S7, got the NORMAL F2 rev. 2218s working (given that the board is not HT 3.x compliant, why the hell bother? :) )
i linked the pics in my thread but they can also be found here
dave
Yes, but quality of this implementation is poor... You will get much better results from XP x64 or Vista (Linux is the KING)Quote:
Originally Posted by Plywood99
i would never suggest running it under Win32 anything....keep it to x64 and above
dave
s7 get yourself rd790es board :) it should rock with these babies
The important thing to remember about NUMA is that even if the OS is "aware" of NUMA, then it is still very, very hard to make good use of it.
I have permanently requested but never received links to benchmark showing a good speedup from NUMA in any other situation than a single-application machine with an application that manages everything by hand such as a big SQL server.
Expecting SuperPi to shine is hopeless unless you go as far as using Linux and directly manipulate page placement. Their new crazy page migration (actually moving memory from one bank to another when the process had switched processors) might have a few tuning knobs.
Sorry...I'm a noob in SMP benching :( . How about this...Could you possibly make a list of things you'd like to see benchmarked along with which OS. I'll do my best to accomodate as I'm curious to know how a system such as this one stacks up against "real" servers. Thanks :toast:Quote:
Originally Posted by uOpt
@ Karting Freak: I'll see what I can dig up...ATM I only have access to the RD690's..
OK...I guess I'll switch over to 64bit XP and run some tests...any suggestions. I'm going to try to land another 2gb pair of DDR2, but what if I was to run my 2x512MB set along with my current 2gb set? So basically, I'd be running with 1.5GB per channel?
should work. Its not "optimal" but its probably faster than just 2x1gb
OK.....I'll try that tomorrow but in two days time, I'll have another 2gb set here...Quote:
Originally Posted by STEvil
My benchmarks are in my signature.Quote:
Originally Posted by s7e9h3n
There's NUMA and non-NUMA socket 940 Opterons in there.
I am not sure what you mean by "such as this one against real servers". The only difference is registered memory, which according to my benchmarks has about NIL real-world slowdown, and the fact that you can overclock non-registered memory better, which has a small speedup for some real-world applications.
OK, got a new board yesterday and temps seem somewhat better on this one. I also got the second 2gb set but can't boot with them installed as the spd on them is programmed @ 600mhz (PC2 9600), 4-3-3-x....that's a BIT too tight for this board :wth: . Gotta reprogram them and then I'll load WinXP x64...
http://img522.imageshack.us/img522/122/newtempsrg7.jpg
Great! I'm waiting for some real clocking this time :toast: .Quote:
Originally Posted by s7e9h3n
cant you set the timmings and volt with the existing ram and put in the new ram a boot?? also be mindful of bios updates that might lock out your optys i would hotflash another bios chip just in case they try something
slick
OK...got 4gb x1gb running now DDR2 1000, 4-4-3-6 @ 2.2V, but it seems to require a bit extra vcore to the cpus. I'd like to take this moment to say that Windows XP Pro x64 has got to be the most wretched creation to come out of MS in quite awhile. I've spent to good part of the last two days trying to get the OS to work properly with this setup. Driver support absolutely sux for this "so-called" OS. Time to scrap the idea of XP 64-bit and try either x64 2003 or possibly Vista (but I'm not too keen on the outrageous amount of resources it requires to simply run). Hopefully I'll be back with a more pleasant update next time....
CPU temps 12-13C :confused: you got the window open or is it reporting temps funny heh
Nope, not a single window open nor even a door. That pic was from the initial boot-up on the new mobo, so maybe everything needed some time to "set-in". Temps now hover around the low to mid 20's idle, but this mobo still is putting out enormous amounts of heat. I imagine that if this setup was inside a closed case, I'd be seeing temps on the cpu ~10 - 15C higher. I'm currently entertaining the thought of watercooling everything including the mosfets.....Quote:
Originally Posted by dinos22