Feeds

63 TRILLION maths ops a second - in 5 inches? Mm, show me

3U rack box is a $70,000 clown car of GPUs

Protecting against web application threats using SSL

If you need lots of compute power, you’re either already using GPU accelerators or taking a close look at them. And if you’re serious about tapping into the full processing power of the GPU, perhaps this gear will fit the bill.

Dubbed the ioMillennia, it’s a 3U, PCIe Gen3 switch from One Stop Systems that can handle sixteen full-size GPU cards. We glimpsed this behemoth when walking the floor at GTC 2013 and were attracted like moths to the 42.3 billion candle-power Luxor Sky Beam. (Or, more accurately, like me to a doughnut display case.)

One Stop System sales veep Jim Ison walked us through the box (as seen in the video here), discussing both technical specs and customer usage. It packs 16 hot and power-hungry GPUs into a cramped 3U space. And it does take a little bit of power to run the high-performance GPUs – about 6,000 watts provided by three 3,000-watt hot-swappable power supplies. (One is a redundant backup.)

At a retail price of about $15,000 for the base unit, you get a lot of bang for your buck. Let’s do some maths. A single Nvidia K20x has a single precision peak of 3.95 teraflop/s, and 1.31 teraflop/s at double precision.

Multiply this by 16 and you get a potential max of at least 63 TFLOP/s single precision and at least 20 TFLOP/s double precision per 3U rack mount unit. The ioMillennia costs around $18,000 with all four host adapters, and 16 Kepler K20s will cost you an additional $51,200 (16 times $3,200). Let’s call it an even $70,000 purchase price. (I’m assuming you already have some fast host systems hanging around.)

So, if you have the code to push all 16 Keplers to their peak performance, your price performance would be a $1.11 per gigaflop/s single precision or $3.34 per gigaflop/s double precision.

Let's put these numbers into context: I wrote an article just over a year ago comparing LINPACK price performance on several supercomputers versus common workstations and home PCs. Getting accurate cost figures on supercomputers isn’t easy; these things don’t come in shrink-wrapped boxes with price tags. However, I managed to find some ballpark numbers. Here’s what that chart looks like with One Stop’s ioMillennia added in:

Table comparing hardware: HTML version to come

The stats are in (click to enlarge)

At waaayyyy (technical term, meaning ‘a lot’) under a penny per megaflop/s, the ioMillennia handily beats every system on our chart – even thrashing my wife’s generic desktop that used to lead the pack at just over 4 cents per MFLOP/s.

Keep in mind that the numbers for the ioMillennia were arrived at by simply adding up the theoretical peaks for all 16 GPUs. It’s not the result of a benchmark or any real-world workload. There also isn’t any host system or other infrastructure cost in that number. However, it’s still orders of magnitude less expensive than other systems in terms of price/performance.

Speaking of performance, the ioMillennia host adapter allows GPUs to directly exchange data without running the request back through the CPU. Nvidia introduced RDMA (Remote Direct Memory Access) with the Kepler launch last year, but we haven’t seen much real-world data on how well it performs until some sessions at GTC 2013. The advantages can be profound, reducing latency by 5x on large transfers (2MB) and almost 16x on small (16KB) chunks of data. Throughput also rises dramatically. (See El Reg's Timothy Prickett Morgan's discussion of RDMA here.)

This product is already available directly from One Stop Systems and should be appearing soon in at least a few major vendor price books. ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
Wanna keep your data for 1,000 YEARS? No? Hard luck, HDS wants you to anyway
Combine Blu-ray and M-DISC and you get this monster
Google+ GOING, GOING ... ? Newbie Gmailers no longer forced into mandatory ID slurp
Mountain View distances itself from lame 'network thingy'
US boffins demo 'twisted radio' mux
OAM takes wireless signals to 32 Gbps
Apple flops out 2FA for iCloud in bid to stop future nude selfie leaks
Millions of 4chan users howl with laughter as Cupertino slams stable door
'Kim Kardashian snaps naked selfies with a BLACKBERRY'. *Twitterati gasps*
More alleged private, nude celeb pics appear online
Students playing with impressive racks? Yes, it's cluster comp time
The most comprehensive coverage the world has ever seen. Ever
Run little spreadsheet, run! IBM's Watson is coming to gobble you up
Big Blue's big super's big appetite for big data in big clouds for big analytics
Seagate's triple-headed Cerberus could SAVE the DISK WORLD
... and possibly bring us even more HAMR time. Yay!
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.