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Monday, October 29, 2012
 ORNL Debuts Titan Supercomputer
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Message Text: The U.S. Department of Energy's Oak Ridge National Laboratory on Monday completed the deployment of a 20-petaflop supercomputer called Titan, which may give the U.S. an edge over China and Japan in the race to build the world's fastest computers.

Titan's peak performance is more than 20 petaflops -- or 20 million billion floating-point operations per second -- about 90 percent of which comes from 18,688 NVIDIA Tesla K20 GPU accelerators and 16-core AMD Opteron 6274 processors.

Titan will be 10 times more powerful than ORNL's last world-leading system, Jaguar (2.3-petaflops) while overcoming power and space limitations inherent in the previous generation of high-performance computers.


The Cray XK7 system contains 18,688 nodes, with each holding a 16-core AMD Opteron 6274 processor and an NVIDIA Tesla K20 graphics processing unit (GPU) accelerator. Titan also has more than 700 terabytes of memory. The combination of central processing units and more recent GPUs will allow Titan to occupy the same space as its Jaguar predecessor while using only marginally more electricity. Titan consumes about 9 megawatts of power and the energy costs for running the supercomputer could add up to $10 million a year.




Among the flagship scientific applications on Titan include calculations of a material's magnetic states as they vary by temperature (Materials Science,) modelling of large-molecule hydrocarbon fuels such as the gasoline surrogate isooctane, simulations in nuclear energy research and more.


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