Oak Ridge National Laboratory gets Kepler K20 "Big K"

[railven]

brightside of news is reporting that Titan has 46,645,248 cuda cores, which when divided by 18,688 GPU's equals 2,496 cuda cores per GPU - 13 SMX's. So it appears there is conflicting reports as to exactly how many SMX's are active, what operational speed the GPU's are functioning at, OR what GK110's peak theoretical tflops is.

You'd figure it be so easy for one of the many people involved to just announce that info.

I'm starting to wonder if there is a mix/match up. Is it possible that to use as many dies as possible, not all cards are 1:1? Some might have 13 SMX, some 14 SMX, some 15 SMX?

I recall someone saying a deadline to get into the next 500 list, could be a reason to just go with what you have.

 

[tviceman]

You'd figure it be so easy for one of the many people involved to just announce that info.

I'm starting to wonder if there is a mix/match up. Is it possible that to use as many dies as possible, not all cards are 1:1? Some might have 13 SMX, some 14 SMX, some 15 SMX?

I recall someone saying a deadline to get into the next 500 list, could be a reason to just go with what you have.

I would guess, that as part of the contract, the quality of the products are all equal. Nvidia hasn't announced different versions of K20, so I am guessing that all the GPU's are operating at the same core frequency, have the same number of cuda cores enabled, and also have the same amount of vram and bandwidth.

 

[SirPauly]

The link:

Titan Comes to Life: 46 Million Nvidia CUDA Cores, 300,000 AMD x86 Cores

http://www.brightsideofnews.com/new...idia-cuda-cores2c-3002c000-amd-x86-cores.aspx

 

[railven]

I would guess, that as part of the contract, the quality of the products are all equal.

Not saying I know the contract, but as someone who has to order supplies, I've had to mix and match to get to what I needed before.

I'm just speaking out loud, if it is possible, and they really had to use everything they could produce to beat the December deadline, I wouldn't be surprised (also supports the inconsistent info leaks.)

Just a plausibility, but if I'm right, you owe me a donut

 

[SirPauly]

It may be logical to have a specific Tesla sku -- like a K-20.

 

[railven]

It may be logical to have a specific Tesla sku -- like a K-20.

More than logical, and I'm sure legally required.

My dot connecting is more of a "this is a specific situation" and it only got muddied when someone mentioned some finish line for number #1 super computer. No race, no rush for parts, we in a race, give me what you got NOW!

And the other dots of the different leaked specs.

Wait and see I guess. I've made some wild predictions this gen only to be right

 

[tviceman]

Not saying I know the contract, but as someone who has to order supplies, I've had to mix and match to get to what I needed before.

I'm just speaking out loud, if it is possible, and they really had to use everything they could produce to beat the December deadline, I wouldn't be surprised (also supports the inconsistent info leaks.)

Just a plausibility, but if I'm right, you owe me a donut

I'll gladly get you a donut if they mixed and matched, but to me it just doesn't sound right from a build-to-order contract. Nvidia should be contractually obligated to deliver parts of all equal quality. It's not like there were traditional supply issues when the contract was written up - the GPU didn't even exist yet!

 

[iMacmatician]

brightside of news is reporting that Titan has 46,645,248 cuda cores, which when divided by 18,688 GPU's equals 2,496 cuda cores per GPU - 13 SMX's. So it appears there is conflicting reports as to exactly how many SMX's are active, what operational speed the GPU's are functioning at, OR what GK110's peak theoretical tflops is.

Also, BSN reports that Titan has 91.25 TB GDDR5, that would be 5 GB per GPU. So it seems that these K20s are similar in terms of specs to the K20s from a store, at least except for the clock speeds.

The BSN and HPCwire discrepancy is interesting, unless I'm missing something:

BSN: "584 TB Registered ECC DDR3 memory" and ""91.25 TB ECC GDDR5 memory," which would be 5 GB/GPU.
HPCwire: "598 TB on the CPU side and 112 TB on the for the GPUs," which would be 6 GB/GPU.

 

[boxleitnerb]

Theo Valich is not known for his credibility. He probably just took the K20 specs from that shop and multiplied the numbers by 18,688.

 

[SlowSpyder]

The link:

Titan Comes to Life: 46 Million Nvidia CUDA Cores, 300,000 AMD x86 Cores

http://www.brightsideofnews.com/new...idia-cuda-cores2c-3002c000-amd-x86-cores.aspx

The should have gone with AMD cards... and then mined bitcoins.

 

[AnandThenMan]

The should have gone with AMD cards... and then mined bitcoins.

I'm glad they didn't, the currency would have gone into negative numbers in about 3 days.

 

[tviceman]

Also, BSN reports that Titan has 91.25 TB GDDR5, that would be 5 GB per GPU. So it seems that these K20s are similar in terms of specs to the K20s from a store, at least except for the clock speeds.

The BSN and HPCwire discrepancy is interesting, unless I'm missing something:

BSN: "584 TB Registered ECC DDR3 memory" and ""91.25 TB ECC GDDR5 memory," which would be 5 GB/GPU.
HPCwire: "598 TB on the CPU side and 112 TB on the for the GPUs," which would be 6 GB/GPU.

Looks like someone didn't do their homework.

Theo Valich is not known for his credibility. He probably just took the K20 specs from that shop and multiplied the numbers by 18,688.

This is very true.

 

[ViRGE]

Theo Valich is not known for his credibility. He probably just took the K20 specs from that shop and multiplied the numbers by 18,688.

Likely. HPCwire is a real journalistic organization with standards and fact-checking; if they say it has 6GB of VRAM, then it has 6GB of VRAM.

 

[SolMiester]

The should have gone with AMD cards... and then mined bitcoins.

Not sure if serious, however do we have any idea how these K20 cards perform with bitcoins?...By all accounts they should be better no?

 

[ShintaiDK]

GK110 is 384bit. So should be pretty obvious that its 6GB.

 

[SirPauly]

The should have gone with AMD cards... and then mined bitcoins.

 

[SlowSpyder]

Not sure if serious, however do we have any idea how these K20 cards perform with bitcoins?...By all accounts they should be better no?

Very much a joke. I assume working on real problems is of higher concern than generating bitcoin currency. Especially when they can have all the tax money they want.

No idea how the K20 will do with bitcoins, AMD cards typically perform much better. Big K may change that, we may never know if it never makes it to consumer level cards.

 

[Siberian]

This has been great publicity for NVIDIA. I actually heard an interview with one of their guys on the radio today. They were talking about how video games have made this supercomputer possible.

 

[SlowSpyder]

This has been great publicity for NVIDIA. I actually heard an interview with one of their guys on the radio today. They were talking about how video games have made this supercomputer possible.

I have to say, it is pretty interesting how building faster and faster GPU's has opened a new way of computing. We certainly have to give credit to Nvidia for pushing forward with GPGPU to make it what it is today.

 

[tviceman]

This has been great publicity for NVIDIA. I actually heard an interview with one of their guys on the radio today. They were talking about how video games have made this supercomputer possible.

Reminds me of these:
http://www.youtube.com/watch?v=DmaYH1F6kho
http://www.youtube.com/watch?v=ldiYYJNnQUk

 

[tviceman]

So now we know Nvidia is producing GK110's with 14 SMX' enabled, all it's memory controllers enabled, and at 732mhz it's TDP is at about 225 watts (more or less by a small amount). 800mhz 14 and 15 SMX parts with ~250 watt TDP are very realistic for the desktop IMO.

 

[Cookie Monster]

So now we know Nvidia is producing GK110's with 14 SMX' enabled, all it's memory controllers enabled, and at 732mhz it's TDP is at about 225 watts (more or less by a small amount). 800mhz 14 and 15 SMX parts with ~250 watt TDP are very realistic for the desktop IMO.

Well said. If the 15 SMX parts cannot meet the 225W envelope (which applies to both Tesla and Quadro), it bodes well for the Geforce side of things since those could potentially see the light of the day for us consumers

 

[ViRGE]

http://www.anandtech.com/show/6421/...-299k-amd-x86-cores-and-186k-nvidia-gpu-cores

 

[blastingcap]

From: http://www.anandtech.com/show/6421/...99k-amd-x86-cores-and-186k-nvidia-gpu-cores/4

 

[3DVagabond]

The should have gone with AMD cards... and then mined bitcoins.

Best post of the thread.