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A Comparison of Heterogeneous and Manycore Programming Models

Mar 2, 2015 |

The high performance computing (HPC) community is heading toward the era of exascale machines, expected to exhibit an unprecedented level of complexity and size. The community agrees that the biggest challenges to future application performance lie with efficient node-level execution that can use all the resources in the node. These nodes might be comprised of Read more…

BSC, Intel Extend Exascale Research Effort

Feb 17, 2015 |

Intel’s efforts to advance exascale computing concepts received a boost with the extension of the company’s research collaboration with the Barcelona Supercomputing Center (BSC) – one of four Intel exascale labs in Europe. Begun in 2011 and now extended to September 2017, the Intel-BSC work focuses on scalability issues with parallel applications. “[A major goal] Read more…

Run Anywhere Big Data and HPC Workloads

Feb 9, 2015 |

A classical problem in software development is how you manage your software applications dependencies. This extends all the way from the time you program your application to the time you run or deploy it. The typical application is almost always dependent on specific versions of libraries, compilers or the OS level package management system. Organizations Read more…

Practical Advice for Knights Landing Coders

Feb 5, 2015 |

The National Energy Research Scientific Computing Center (NERSC) is on track to get its next supercomputer system, Cori, by mid-2016. While that’s more than a year away, it’s not too soon to start preparing for the new 30+ petaflops Cray machine, which will feature Intel’s next-generation Knights Landing architecture. So says Richard Gerber, Senior Science Read more…

Is U.S. Falling Behind in Supercomputing and Exascale?

Jan 29, 2015 |

Few dispute the importance of supercomputing to U.S. competitiveness. The argument is around whether current government efforts – primarily through the Advanced Scientific Computing Research (ASCR) program within the U.S. Department of Energy (DOE) – are effective and sufficient or wasteful and excessive. Yesterday, a panel of HPC experts testifying at a U.S. House of Read more…

Short Takes

NSF Promotes Data Science with $31M Award

Oct 1, 2014 |

The National Science Foundation (NSF) announced today some $31 million in awards for 17 innovative projects geared toward the promotion of data science and a robust data infrastructure. The National Science Foundation (NSF) seeks to improve the nation’s capacity in data science by investing in the development of infrastructure, making it easer to use data, Read more…

Deconstructing Moore’s Law’s Limits

Aug 18, 2014 |

For the past five decades, computers have progressed on a predictable trajectory, doubling in speed roughly every two years in tune with Gordon Moore’s oft-cited observation-turned-prophecy. Although semiconductor scaling continues to yield performance gains, many perceive a tipping point is nigh, where the cost-benefit analysis of further miniaturization breaks down. The latest researcher to weigh Read more…

Parallel Programming with OpenMP

Jul 31, 2014 |

One of the most important tools in the HPC programmer’s toolbox is OpenMP, a standard for expressing shared memory parallelism that was published in 1997. The current release, version 4.0, came out last November. In a recent video, Oracle’s OpenMP committee representative Nawal Copty explores some of the tool’s features and common pitfalls. Copty explains Read more…

Building Parallel Code with Hybrid Fortran

Jul 31, 2014 |

Over at the Typhoon Computing blog, Michel Müller addresses a topic that is top of mind to many HPC programmers: porting code to accelerators. Fortran programmers porting their code to GPGPUs (general purpose graphics processing units) have a new tool at their disposal, called Hybrid Fortran. Müller shows how this open source framework can enhance portability without sacrificing performance and maintainability. From the blog (editor’s note: the site Read more…

The Portability Mandate

Jul 24, 2014 |

Argonne National Laboratory recently published several sessions from its Summer 2013 Extreme-Scale Computing program to YouTube. One of these is a lesson on combining performance and portability presented by Argonne Assistant Computational Scientist Jeff Hammond. For some reason the video image does not match the lecture, but you will find a link to Hammond’s slide deck here. Read more…

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