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[SA/WSJ/247WS] AMD Buys SeaMicro - Page 7

post #61 of 71
Quote:
Originally Posted by Maelthras View Post

Why are you saying these things, a gpu has far more bandwidth than LLano, my 5870 is running at 157GB/s, so that crushs the 17GB/s you think is required.

The connection between your 5870's memory and the actual GPU is 157GB/s. PCI-E 3.0 x16 only provides 32GB/s bandwidth bi-directional (16GB each direction, that is)
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post #62 of 71
So then it's 16GB/s bidirectional that would only bottleneck at 95% load. It would still be feasible with a hardware-firmware upgrade of 1GB/s.
post #63 of 71
Interesting! (not trolling) Does any company sell a blade server type solution (as opposed to pizza box style servers 1/2RU) with AMD Opterons as opposed to Xeons? I used to do presales work for Cisco data center equipment but on all the comparison quotes I saw, I never saw AMD in anything blade center wise. Good stuff for AMD, hope it turns into great stuff.

EDIT: I fail.... just read the article, wasn't what i was thinking
Edited by Mr.N00bLaR - 3/1/12 at 12:38pm
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post #64 of 71
Quote:
Originally Posted by Carniflex View Post

The tech about connecting multiple CPU's through PCI-e seems interesting.
I'm hoping this gets implemented in high end chipsets as well allowing multi CPU solutions with consumer (overclockable) CPU's. Well - one can dream wink.gif

No, this is an enterprise technology, there is no application on the consumer side. The fabric connects multiple servers together.
Quote:
Originally Posted by DuckieHo View Post

PCIe latency and bandwidth is way too high/low for a CPU-CPU interconnect. PCIe would be more for nuclear tasks being assigned to different CPUs.
What chips would AMD be using in Seamicro's design?

The fabric can support any processor. Initially we will ship the current designs, but there are AMD designs that were already in the works. We have a wide range of IP to choose from with large cores, small cores, GPU and now a fabric that helps tie it all together.
Quote:
Originally Posted by Mr.N00bLaR View Post

Interesting! (not trolling) Does any company sell a blade server type solution (as opposed to pizza box style servers 1/2RU) with AMD Opterons as opposed to Xeons? I used to do presales work for Cisco data center equipment but on all the comparison quotes I saw, I never saw AMD in anything blade center wise. Good stuff for AMD, hope it turns into great stuff.

HP and Dell both have Opteron-based blades. There are a handful of others as well.
post #65 of 71
Quote:
Servers go from being a large box to a small card as they are aggregated into this environment. Card-based servers are infinitely easier to deploy and manage because there are fewer discrete components and more sharing.

I love the sound of this concept!
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post #66 of 71
Quote:
Originally Posted by Maelthras View Post

Why are you saying these things, a gpu has far more bandwidth than LLano, my 5870 is running at 157GB/s, so that crushs the 17GB/s you think is required. So please explain how 17>157 works.

PCIe has more latency than the connections within an APU. In common sense type of thinking, the distance is much longer to travel so that is why latency is higher.
post #67 of 71
Quote:
Originally Posted by JF-AMD View Post

No, this is an enterprise technology, there is no application on the consumer side. The fabric connects multiple servers together.
The fabric can support any processor. Initially we will ship the current designs, but there are AMD designs that were already in the works. We have a wide range of IP to choose from with large cores, small cores, GPU and now a fabric that helps tie it all together.
HP and Dell both have Opteron-based blades. There are a handful of others as well.

Supermicro also sells a nice AMD based blade. I (and a lot of my customers) prefer the Supermicro solution over HP and Dells.
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post #68 of 71
Quote:
Originally Posted by Riou View Post

PCIe has more latency than the connections within an APU. In common sense type of thinking, the distance is much longer to travel so that is why latency is higher.

Yeah, latency is one of the reasons why they stopped making slot CPUs.
adapter_slot1.jpg


EDIT: Latency between the board's cache and the CPU, that is.
Edited by sLowEnd - 3/1/12 at 2:06pm
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post #69 of 71
Oh I know that hope that something like this is implemented on consumer motherboard using the non-Opteron parts is something that AMD has no interest in supporting. Unfortunately - on the other hand the server boards are very "locked" as far as overclocking options go. Understandably ofc as servers are more for reliability and power consumption savings than best-bang-for-buck. And muti socket "consumer" boards are relatively small niche anyway as far as I can tell.

I myself are just wanting more DIMM slots with option of overcloking as cheap as possible. G34 has nice number of DIMM slots, but it's getting a bit aged (at least as far as current gen goes) as the boards that let you use non-ECC sticks seem to be limited to 4 Gb max per stick. LGA 2011 has about the same number of DIMM slots (or 4 less, if the G34 is using 3 sticks per channel) but allows 8 Gb non-ECC sticks - however - its kinda expensive and especially so if you get into multi socket stuff and have to use Xeon wink.gif etc,etc.

I'm doing relatively RAM heavy numerical simulations, however, I'm on limited budget (most people are afterall). Atm I'm on overcloked 6 core Phenom with 16 gigs of RAM. It gets the job done, but the more processing power and RAM I have the bigger stuff I can run. Mostly FFT, so relatively easily parallelized although parts of the code are strictly single threaded so I kind of care about single threaded performance as well.

Anyway - this tech looks interesting. Perhaps when I have to do the next upgrade after the one I'm planning to do in upcoming summer something interesting is already in market as a result of this purchase. Say - Early summer of 2014 perhaps.
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post #70 of 71
I think the world has proven that 2P consumer systems is a tiny market and getting smaller every day.

2P systems have lower latency because the two processors communicate with each other through high bandwidth, low latency hypertransport.

This technology would not let anyone make a 2P client desktop. It might allow for 2 1P desktops in a single chassis, but if you think the market for 2P client systems is low, try to pitch that idea to the market. (client virtualization will be a better solution for that problem.)

There is nothing here that will trickle down to the enthusiast market. The fabric does not creat multi-cpu systems, it allows you to connect multiple servers together. It sits below the chipset, not between the CPUs.

Take a look at the back of the rack and see all of the cabling and redundancy, taking up space and consuming power. That is what this system solves. It doesn't let you combine 64 systems into a single supercomputer, it helps you better manage the deployment of 64 individual servers.

Perhaps you can still dream, but you are dreaming about a capability that does not exist.
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