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Search Results for: lasers

All-to-all communications with lasers

I just can’t help picturing Dr. Evil. Anyway, the WSJ reported on Friday that startup Lightfleet, Inc. is building a new multiprocessor architecture that replaces the wires that are SO 20th century for connecting processors with lasers. Each microprocessor is installed with a laser transmitter and a set of devices that receive beams of light […]

Is Light-speed Computing Only Months Away?


In this video, Professor Heinz Wolff explains the Optalysys Optical Processor. The Cambridge UK based startup announced today that the company is only months away from launching a prototype optical processor with “the potential to deliver Exascale levels of processing power on a standard-sized desktop computer.”

Proposed Legislation is How Not to Do Science

Over at the ISC Blog, Michael Feldman from Intersect360 Research writes that the proposed High Quality Research Act under consideration in Congress would severely restrict the types of research that could be funded. Think of digital computers, the Internet, lasers, and genome sequencing, all of which are underpinned by basic science, and all of which […]

Record Simulations Conducted on Lawrence Livermore Supercomputer

Over at Lawrence Livermore, Breanna Bishop writes that researchers at LLNL have performed record simulations using all 1,572,864 cores of the Sequoia supercomputer. As the first supercomputer to exceed one million computational cores, Sequoia is also is No. 2 on the TOP500 with 16.3 petaflops of performance. The simulations were performed by Frederico Fiuza, a […]

Podcast: Radio Free HPC on the Energy Wall of Exascale

Power is a major challenge standing in the way of the Exascale computing. While the target is to consume 20 MW or less for an exascale machine, current technology trends will not take us there by 2018. In this podcast, the Radio Free HPC team discusses why this is such a tough challenge, where such […]

Interconnects and Exascale: An Interview with Intel Fellow, Shekhar Borkar.

The Exascale Report: Why don’t we start off at a very basic level. Let’s talk about the definition of interconnects. What do you mean when you talk about interconnects?

Borkar: So, you know Mike, interconnect means different things to different people – and interconnects start from inter-connecting two transistors on a chip – or on a die – all the way to connecting cities by means of fiber or wire – over distances of kilometers – so interconnects really span this entire spectrum – from micrometer to kilometers.
But now, let’s stick to HPC. HPC in the past, when you talked about interconnects – it really meant the traditional HPC interconnects such as the interconnect fabrics for supercomputers like meshes or butterflies – or whatever – whatever topology you can think of, but now, in this era – it’s a lot broader than just an interconnect fabric. When I say interconnect today, I mean an interconnect that connects transistors together, that connects cores together on the chip, that connects regions together on the board, and connects racks and board together. A tenth of a kilometer maybe is the largest distance I’m talking about – even less to micrometers – to me that’s an interconnect – how to move data around within these entities and over these distances.

Datacenter cooling strategies

Researchers at the Georgia Institute of Technology are focusing on improving datacenter cooling Joshi and his students have assembled a small high-power-density datacenter on the Georgia Tech campus that includes different types of cooling systems, partitions to change room volumes and both real and simulated server racks. They use fog generators and lasers to visualize […]

The science of victory

The CRA Policy blog points to an outstanding video highlighting the importance of funding science and technology at the federal level released in conjunction with the Army Science conference this week in Orlando, FL. Early on in the video we hear from some old guys who were funded by our government at various times in […]

What the earth's core and eggshells have in common

The answer? HECToR’s Cray XT4. Last week Cray announced …that researchers in the United Kingdom (UK) are already achieving breakthrough science in a number of key disciplines using the powerful and highly scalable Cray XT4 supercomputer that was unveiled in January 2008 as part of the UK’s High-End Computing Terascale Resource (HECToR) project. …These critical […]

New optical chip from XLoom

XLoom Communications introduced its iFlame optical chip this week Flame, the industry’s first chip-scale 4-channel optical transceiver, is aimed at data center applications running over InfiniBand, Ethernet and Fiber-Channel. The iFlame chip, implemented as an optical engine, enables high-speed, high-density, cost-effective interconnect applications such as Opto-electrical media converters, optical active connectors and cables as well […]