Tag: HPC

Why Cross-Accelerator Performance Profiling is a Challenge

Aug 17, 2016 |

High performance computing (HPC) systems are comprised of multiple compute nodes interconnected by a network. Previously these nodes were composed solely of multi-core processors, but nowadays they also include many-core processors, which are called accelerators. Although accelerators provide higher levels of parallelism, their inclusion in HPC systems results in more complex system designs and increases Read more…

DARPA Ramps Up Spectrum Challenge with Information Days

Aug 4, 2016 |

Next week, the DARPA-sponsored Spectrum Collaboration Challenge (SC2) to invent a better way to dynamically carve up and use of electromagnetic spectrum will hold its first information days. The information sessions are among the first concrete steps in what will be a long haul for teams – the winning designs aren’t expected until lat 2019. Read more…

IBM Phase Change Device Shows Promise for Emerging AI Apps

Aug 3, 2016 |

IBM Research today announced a significant advance in phase-change memristive technology – based on chalcogenide-based phase-change materials – that IBM says has the potential to achieve much higher neuronal circuit densities and lower power in neuromorphic computing. Also, for the first time, researchers demonstrated randomly spiking neurons based on the technology and were able to Read more…

MPI Is Not Perfect … Yet

Aug 3, 2016 |

The Message Passing Interface (MPI) is the standard definition of a communication API that has underpinned traditional HPC for decades. The message passing programming represents distributed-memory hardware architectures using processes that send messages to each other. When first standardised in 1993-4, MPI was a major step forward from the many proprietary, system-dependent, and semantically different message-passing libraries that came before it.

D.C. Workshop Strives to Keep NSCI Flame Burning and Growing

Aug 1, 2016 |

Last Friday, almost exactly one year after President Obama’s Executive Order establishing the National Strategic Computing Initiative (NSCI), the Office of Science and Technology Policy held a workshop in Washington D.C. ostensibly to celebrate NSCI accomplishments so far – and there are many. Just as important, the meeting sought to (re)energize NSCI’s diverse stakeholders, many Read more…

Report Addresses the Perils of Dark Silicon

Jul 21, 2016 |

Dark silicon refers to the processing potential that’s lost when thermal constraints disallow full CPU utilization. The gap between transistor scaling and voltage scaling combined with tighter integration of components (multicore, SoCs) has power density ramifications that are of particular concern for embedded computing, but high-performance computing faces similar “dark power” challenges. Bringing attention to this issue and exploring common solutions was the goal of the Dagstuhl Seminar 16052, “Dark Silicon: From Embedded to HPC Systems.”

Los Alamos Researcher Honored for HPC Storage Leadership

Jul 21, 2016 |

Gary Grider, deputy division leader of the High Performance Computing (HPC) Division at Los Alamos National Laboratory, was awarded 2015 Richard P. Feynman Innovation Prize at a ceremony last week for his national leadership in developing cutting-edge HPC strategies and his innovative business partnerships. Grider is a leader in the HPC storage community and holds Read more…

Lengau: Global Grand Challenges Through an African Lens

Jul 19, 2016 |

South African Council for Scientific and Industrial Research (CSIR) Program Director Kagiso Chikane recently welcomed 100 guests to the Centre for High Performance Computing (CHPC) in Cape Town for the dedication of the fastest computer on the African continent. “Lengau,” which means “Cheetah” in the African Setswana language, ranked 121 on the June TOP500 list of the world’s fastest supercomputers.

Briefing Alert: SoftBank will Purchase ARM Ltd for $32B

Jul 18, 2016 |

ARM Ltd has agreed to be bought by Japanese technology company SoftBank for $32B according to both companies. ARM-based chips are already dominant players in the mobile computing market and recently efforts to push ARM processors into servers, including HPC, have gained momentum. For example, Japan’s next flagship supercomputer, the post K Computer, will be Read more…

Life in a Drop: Ohio Supercomputer Helps Prove Hydration’s Role in Protein Folding

Jul 14, 2016 |

It’s perhaps fitting that in the middle of the summer, when water management is a common challenge, that a paper in the Proceeding of the National Academy of Sciences (PNAS) offers more proof that life as we know it can’t occur without water. Using Ohio Supercomputing Center resources, researchers have shown the critical role water plays in actively guiding protein folding and movement. “For a long time, scientists have been trying to figure out how water interacts with proteins…