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Tesla GPU Accelerators Hit the Gas with GPU Boost

Nov 18, 2013 |

Nvidia is rolling out a new top-end GPU accelerator, called the Tesla K40, that has both more processing capacity and more memory than the current K20X accelerator that is popular in high-end clusters – particularly those that need double precision floating point math. The upgrade is offering significant performance improvements through the activation of more Read more…

SC13 Research Highlight: Extreme Scale Plasma Turbulence Simulation

Nov 16, 2013 |

As the global energy economy makes the transition from fossil fuels toward cleaner alternatives, fusion becomes an attractive potential solution for satisfying the growing needs. Fusion energy, which is the power source for the sun, can be generated on earth, for example, in magnetically-confined laboratory plasma experiments (called “tokamaks”) when the isotopes of hydrogen (e.g., Read more…

SC13 Research Highlight: There Goes the Performance Neighborhood…

Nov 16, 2013 |

Message passing can take up a significant fraction of the run time for massively parallel science simulation codes. Consistently high message passing rates are required for these codes to deliver good performance. At Supercomputing 2013 (SC13), our research team from Lawrence Livermore (LLNL) will present the results of our study that show that run-to-run variability Read more…

SC13 Research Highlight: Petascale DNS of Turbulent Channel Flow

Nov 15, 2013 |

Whether a car on the highway, a plane flying through the air, or a ship in the ocean, all of these transport systems move through fluids. And in nearly all cases, the fluid flowing around these vehicles will be turbulent. With over 20% of global energy consumption expended on transportation, the large fraction of the Read more…

Titan Runs 15 Petaflop Superconductor Simulation

Nov 15, 2013 |

A research feature at the Oak Ridge Leadership Computing website explores how sheer computing speed and algorithm improvements have put an international team of scientists in the running for this year’s Gordon Bell Prize. The team from ETH Zurich in Switzerland and Oak Ridge National Laboratory (ORNL) have performed simulations of high-temperature superconductors topping 15 Read more…

Hurricane Force Supercomputing: Petascale Simulations of Sandy

Nov 14, 2013 |

The devastation incurred by the landfall of Hurricane Sandy on the northeast coast of the United States just over one year ago exemplifies the need for further advances in accuracy and reliability in numerical weather prediction. High resolution numerical weather simulations carried out on hundreds of thousands of processors on the largest supercomputers, Blue Waters in this case, are providing these very insights.

Cosmic Supercomputing Code Selected as Gordon Bell Finalist

Nov 13, 2013 |

The illuminated compact region shining from the center of an active galaxy is known as an active galactic nucleus (AGN). Active galactic nuclei can produce jets of plasma thousands of light-years long. Consider popular images of galaxies speared by intense light. Many astronomers believe that this explosive energy output is powered by supermassive black holes Read more…

Cool and Steady Wins the Exascale Race

Nov 12, 2013 |

Power, energy and reliability present major challenges to HPC researchers in their endeavor to build larger machines. As we approach the exascale era, both hardware and software designers need to account for these challenges while optimizing performance. The Parallel Programming Laboratory (PPL) at the University of Illinois at Urbana-Champaign (UIUC) has been actively working on Read more…

Beowulf Community Comes Together at SC13

Nov 9, 2013 |

A Personal Take on the Big Event… When I first started in HPC I used the classic supercomputers such as the CDC 6600, the Cyber 205, and the ETA-10. Fortunately the university I attended gave me free access to these systems as long as I didn’t abuse the resources. My research needed to use these Read more…

The Show Goes On…

Oct 10, 2013 |

SC13, the annual Supercomputing Conference, is set to take place next month, November 17-22, in Denver, Colorado. Because the annual event draws much of its attendee base from government agencies and national labs, the show’s organizers want to assure attendees that it will go on as planned regardless of how the government shutdown proceeds. SC13 Read more…