Technology.am (Oct. 9, 2009) –The National Institute for Computational Sciences’ (NICS’s) Cray XT5 supercomputer—Kraken—has been upgraded to become the first academic system to surpass a thousand trillion calculations a second, or one petaflop.
This landmark achievement will greatly accelerate science and place Kraken among the top five computers in the world.
It is managed by the University of Tennessee (UT) for the National Science Foundation (NSF), and came online Oct. 5 with a peak performance of 1.03 petaflops.
It features more than 16,000 six-core 2.6-GHz AMD Istanbul processors with nearly 100,000 compute cores.
In addition, an upgrade to 129 terabytes of memory effectively doubles the size of Kraken for researchers running some of the world’s most sophisticated 3-D scientific computing applications. Simulation has become a key tool for researchers in a number of fields, from climate change to materials.
“Its unprecedented computational capability and total available memory will allow academic users to understand the mechanism behind the explosion of core-collapse supernovas that will reveal much about our universe (these cataclysmic events are responsible for more than half the elements in the universe).
Essentially three phenomena are being simulated to explore these explosions: hydrodynamics, nuclear burning or fusion, and neutrino transport, said UT astrophysicist Bronson Messer.
At the terascale, or trillions of calculations per second, Messer and his team were forced to simulate the star in 1-D as a perfect sphere and with unrealistic fusion physics. “With petascale capability, we can simulate all three phenomena simultaneously with significant realism, said Messer.
This brings us closer to understanding the explosion mechanism and being able to make meaningful predictions.
From the physical makeup of the universe to the causes of global warming to the roles of proteins in disease, Kraken’s increased computing muscle will reach far and wide.