tag: Oak Ridge National Laboratory

Manufacturing Bits: June 21
By Mark LaPedus - 21 Jun, 2016 - Comments: 0

Atomic sculpting Oak Ridge National Laboratory has combined a scanning transmission electron microscope (STEM) with new electronic controls. This tool enables the construction, or the atomic sculpting, of 3D-like feature sizes down to 1nm and 2nm. To achieve these dimensions, the STEM is controlled with a special set of programmable electronics. This, in turn, enables the STEM to tunnel in... » read more

Rethinking Memory
By Ed Sperling - 16 Dec, 2015 - Comments: 3

Getting data in and out of memory is as important as the speed and efficiency of a processor, but for years design teams managed to skirt the issue because it was quicker, easier and less expensive to boost processor clock frequencies with a brute-force approach. That worked well enough prior to 90nm, and adding more cores at lower clock speeds filled the gap starting at 65nm. After that, th... » read more

Power/Performance Bits: May 26
By Jesse Allen - 26 May, 2015 - Comments: 0

Woven fabric electrodes An international team including scientists from the University of Exeter pioneered a new technique to embed transparent, flexible graphene electrodes into fibers commonly associated with the textile industry. Exeter Professor Monica Craciun, co-author of the research said: "This is a pivotal point in the future of wearable electronic devices. The potential has been... » read more

GPUs Dominate (Again) The Green500 List
By Barry Pangrle - 16 Jul, 2014 - Comments: 0

The Green500 has released its latest list of the top 500 most energy-efficient Supercomputers. The top 17 are heterogeneous systems (systems that use more than one type of processor), with the top 15 systems all using NVIDIA Kepler K20 GPUs paired with Intel Xeon CPUs. Still at the top of the list is the Tokyo Institute of Technology GSIC Center’s TSUBAME-KFC, an oil-cooled Kepler powered ... » read more

Manufacturing Bits: Jan. 14
By Mark LaPedus - 14 Jan, 2014 - Comments: 0

MoS2 FETs Two-dimensional materials are gaining steam in the R&D labs. The 2D materials include graphene, boron nitride (BN) and the transition-metal dichalcogenides (TMDs). One TMD, molybdenum diselenide (MoS2), is an attractive material for use in future field-effect transistors (FETs). MoS2 has several properties, including a non-zero band gap, atomic scale thickness and pristine int... » read more

Shaking Up The Green500
By Barry Pangrle - 17 Jan, 2013 - Comments: 0

Barry Pangrle Last September, I wrote about the efficiency of IBM’s Power7+ architecture in my blog. IBM’s Sequoia supercomputer (a BlueGene/Q system) this past June had just shot to the top of the Supercomputing Top500 chart, clocking in at 16.32 petaflop/s on the Linpack benchmark. Other systems built around the IBM BlueGene/Q, Power BQC 16C 1.60GHz, Custom were also dominating the top o... » read more

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