amd dual core preview

[EMC2]

here you go

hmmm yeah, but if its done right a larger shared bus could be faster because you save bandwidth for data that both cpus need at the same time, no?

In a word, no Percentage of time same data needed for both CPUs at the same time... very small ... percentage time CPUs waiting on each other to get the heck out of the way... significantly larger

EMC2 ahhhh so thats an arbiter... you explained it really well, no need for a pic i think the dma example is pefect, the arbiter is like having two hdds hooked on one bus, as slave and master drive, while the crossbar is like having both hdds hooked up in raid0 more or less...

Hmmmm... sorta, kinda I had already gen'd up a pic for the arbitrated shared bus before I read this, so you have to suffer thru it anyway



Peace

[saaya]

I like that idea and it makes sense. The only reason they are scaling down the core frequencies in the first place is that it's much harder to guarantee two cores that are fabbed right next to each other to have a particular speed bin. It is very likely that when they are making one of these dual core processors rated at 2.4 Ghz, one of them runs just fine at that speed but one barely manages 2.0 Ghz. So they would have to speed bin it down to a 2.0Ghz processor. If this ever happens to be the case, it would be hard to implement what you say as the OS would have to know if one or both of the particular cores are capable of OCing for a single thread.

well the cores could be tested indepndantly by amd and speed binned independantly by amd, IF they implement an indepndant clock signal for each core

lol, linux will get taht done really quick im sure lol, 6 months b4 windows mebbe? but ya, that would be a sweet concept

nah, linux would have support 6 months after the feature has been anounced to be integrated into future cpus, and will be ready at release of the cpu that features this, while windows would have support ready when the NEXT generation after the cpu that first supported the feature comes out

and EMC2, sweet pic! heres some more money:

[EMC2]

well the cores could be tested indepndantly by amd and speed binned independantly by amd, IF they implement an indepndant clock signal for each core

FYI... which wouldn't happen without a socket change Remember that the dual-cores are suppose to be "drop-in" replacements for current CPUs.

EMC2, sweet pic! heres some more money:

Save your for a dual-core later this year.

Here's one like the thread topic Saya. If I ever make it back over to your side of the pond you can buy me a cup of java.



Peace

[bachus_anonym]

@ EMC2

You provide very through information here...
I just can't help asking you what you do for a living or what is your background? Sorry, If I dig too deep

[saaya]

If I ever make it back over to your side of the pond you can buy me a cup of java.

not some good fresh german beer?

[EMC2]

You provide very through information here...

hehehe... sorry, long story dealing with the "thorough" part, reminded me of a recent conversation at work... you sure you haven't talked to someone I have worked with or for ?

I just can't help asking you what you do for a living or what is your background? Sorry, If I dig too deep

Understandable Q... no need to apologize Michal It's one of my least favorite topics (me) for conversation... but... will require PMs, YGPM.


--- Saaya ---

Come one bro, no tempting

*momentarily drifts off down memory lane*

Maybe one... a nice cold glass boot full during Octoberfest

Excuse my rustiness, has been a while... Ich wohne in Wehen für 3 Jahre, sehr vernarrte Gedachtnisse

[saaya]

Come one bro, no tempting

*momentarily drifts off down memory lane*

Maybe one... a nice cold glass boot full during Octoberfest

Excuse my rustiness, has been a while... Ich wohne in Wehen für 3 Jahre, sehr vernarrte Gedachtnisse

im def going to this years octoberfest, lemme know when and where and you get your beer

[lutjens]

What I want to see is how badly the dual core Opteron with NUMA spanks the dual core Xeon...the Opterons should be delivering quite the beating considering AMD's Hypertransport technology and the four cores vying for bandwidth.

[saaya]

What I want to see is how badly the dual core Opteron with NUMA spanks the dual core Xeon...the Opterons should be delivering quite the beating considering AMD's Hypertransport technology and the four cores vying for bandwidth.

you mean a dual socket dual core board?

[Orthogonal]

you mean a dual socket dual core board?

Wouldn't that be something, the board would have to be HUGE though... that's a lot of memory it would have to hold.

[madgamer]

Now that the prelim "preview" results are all over the net regarding intels dual core chips, how do you guys thing the AMD dual cores will fare in comparison? At least they wont require another socket change. I'm personally betting that AMD might be able to squeeze more mhz out of their chips than intel initially due to the AMDs running with less wattage/heat to begin with. Intel was kind of running at the edge of meltdown to begin with, so sticking 2 chips on 1 die is only pushing that even closer IMO.

[saaya]

Wouldn't that be something, the board would have to be HUGE though... that's a lot of memory it would have to hold.

you can use dual core opterons in any socket 940 mainboard... so you can use any dual socket 940 board and slap in dual core opterons, thats what he meant i think? a dual socket numa board with dual core chips in it