Oak Ridge and NVIDIA unveil Titan supercomputer
By Emi Kolawole
The U.S. Department of Energys (DOE) Oak Ridge National Laboratory (ORNL) unveiled their new flagship computer, Titan, on Monday. The Department also announced its latest round of Innovative and Novel Computational Impact on Theory and Experiment (INCITE) award recipients.
Titan, according to Oak Ridges announcement, is 10 times more powerful than its predecessor, Jaguar, with a theoretical peak performance of 20 petaflops, or 20,000 trillion calculations per second. The current fastest computer, according to the Top 500 list, is Sequoia, which clocked in at 16.32 petaflops in June.
The first phase of Titans installation was completed earlier this year, and final updates were completed this fall. Titan consumes slightly more energy than Jaguar, but when its significantly faster processing speed is taken into account, it is five times more energy efficient, according to the national laboratorys team. The combination of faster speed and only slightly more energy consumption is critical, since the roughly seven megawatts Jaguar consumed enough to power roughly 7,000 homes cost millions. Titan is estimated to consume roughly nine megawatts.
This power problem is changing everything, said Steve Scott, chief technology officer of NVIDIAs Tesla business unit. The fact that the energy isnt dropping as fast as the transistor budget is increasing is just making us more and more power-constrained. And thats really whats driving us to reinvent how we make processors.
In addition to being faster and more efficient, Titan is the same size as its predecessor. Titan, like Jaguar, occupies a space roughly the size of a basketball court, with each stack approximately the size of a household kitchen refrigerator. Thats due to the nature of the upgrade, which primarily involved the incorporation of graphic processing unit (GPU) accelerators. GPUs are primarily used for computer games, but can be used to accelerate central processing units, or CPUs.
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more: http://www.washingtonpost.com/blogs/innovations/post/oak-ridge-and-nvidia-unveil-titan-supercomputer/2012/10/28/78bf2e98-2110-11e2-8448-81b1ce7d6978_blog.html
http://www.top500.org/