Blog

Allied Control Logo

Subscribe to this list via RSS Blog posts tagged in Energy Efficient

As you may have read in the news, the 41st semiannual TOP500 list of the world's most powerful supercomputers was announced a few days ago at the 2013 International Supercomputing Conference in Germany. Weighing in at a hefty 33.86 Petaflops on the Linpack benchmark, China's Tianhe-2 Supercomputer packs quite the computing punch, and now holds the title of "World's Most Powerful Supercomputer" - at least for the time being. It's more than 3,100,000 computing cores are made up of 16,000 nodes, each containing two Intel Xeon Ivy-Bridge processors and three Xeon Phi co-processors.

 

Continue reading

With all the exciting things happening lately, I almost forgot to post this.

If you are into high performance computing or cloud gaming and GPUs, have a quick look at our Immersion Cooling Concept Design for 64 Intel Xeon Phi coprocessors and 8 HPC mainboards in the space of a suitcase. After the design was shown at the 3M booth at the HPCC-USA Supercomputer Conference in Rhode Island, we've been getting a couple of questions. Especially after AMD announced its Radeon Sky Series GPU for the cloud at the Game Developers Conference (GDC) last month, and NVIDIA showed off their GRID systems at the GPU Technology Conference (GTC), people started to connect the dots.

Continue reading

By guest poster Phillip E. Tuma of the 3M Company

Use of passive 2-phase immersion for computing equipment is largely limited to IBM's exploration of the technology for cooling bipolar chips in the 1970s.  The liquid encapsulation module or LEM, for example, was a 10×10 array of 4.6×4.6mm chips immersed in C6F14 liquid that boiled on the bare silicon. A vulnerability of this technique is the phenomena of incipience overshoot, a large temperature excursion before the inception of boiling that can allow a chip to overheat or stress it mechanically during the sudden temperature drop that follows.  This issue was overcome by modifying the silicon surface with sandblasting followed by an aqueous KOH treatment.  It was also observed that fluid-borne contaminants could distill out of the fluid onto or under the chip.  Under-filling with beeswax kept contaminants away from the C-4 solder bump connections.

Continue reading

We've been working behind closed doors for a long time, but only recently we have been asked to come out and prepare a couple of presentations about the advantages and benefits of passive 2-phase immersion cooling, and why it is so elegant and efficient. One of them, a simple poster, will be used at the Supercomputing Conference (27th Annual HPCC Conference) in Rhode Island, USA, March 26-28th 2013.

Continue reading

My colleague Alex wrote about winter in Hong Kong in an earlier blog post - and it's already over again. Temperatures have been on the rise from mild winter temperatures of 18°C for more than a month already, but today it came in the radio that we're at 28° Celsius (82.4° Fahrenheit) and a whopping 95% relative humidity. This compared to the snow chaos in Europe with airports shutting down just a few days ago in the middle of March... Guess it's quite obvious why we moved to Hong Kong - I was at the beach yesterday, basking in the sun!

Maybe one should draft up a new PUE (Power Usage Efficiency) metric for data centers and supercomputers which is relative to the annual temperature and humidity average of the respective location - just like "relative humidity" in relation to temperature. It's no surprise that Hong Kong's average PUE is at 2.52 according to Digital Realty's 2012 survey on 101 major data centers in Hong Kong. I wonder what lower PUE than the current 1.02 Immersion-1 would achieve with such a new "relative PUE" metric...

 

Continue reading

If you look around a typical Hong Kong office during the winter season you'll often find people in down-feather jackets sitting around old-style (and energy hungry) blow heaters and electrical oil radiators (2000W units are very popular in HK).

This winter however, our office was nice and cosy and T-shirts were the norm. With 70kW heat dissipated next door, and a few tanks strategically placed in the corner of the office, we've had free heating all winter long. It's a very energy efficient way to heat the room.

The dissipated heat from immersion cooling systems is very easy to capture. It is a no-brainer to connect to an existing central heating system or make it part of the design process for a new building design or renovation.

There are no hot water radiators in Hong Kong (and no central heating system as far as I am aware), but if we have the chance we'll definitely get some radiators for the upcoming cold seasons. We could probably heat the whole building with our tiny cluster!

As always, if you have a question on your mind, feel free to get in touch at This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Continue reading
 Our Address:
Global Trade Centre
Units 305-307, 3/F
15 Wing Kin Road 
Kwai Chung, N.T.
Hong Kong

Contact Us:
Phone +852 3145 0055
Fax +852 3010 0802

Email Us
Language:Write to us in English,
German or Chinese.

Global Projects

Hong Kong is one of the fastest-paced cities in the world. It has remained the world's freest economy since 1995, with low tax, no import and export restrictions, free trade and travel. Being located in the financial powerhouse and tech hub of Asia, we are well equipped to work on global projects. No matter how big, or small.

Hot & Humid

Most would consider Hong Kong's cramped living conditions, sky high property prices, and hazy skies as very challenging. When it comes to data centers, hot and humid climates are one of the biggest problems too. Hong Kong's power hungry infrastructure is a major disaster for the people's wallet and the environment. On the bright side, it's habitats like this that push companies to go the extra mile and make a change.