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Exterminating at Extreme Scale

May 7, 2013 |

Since the first bug was eradicated from a Mark II system at Harvard in 1940s (an actual moth wedged in a relay, which drove the machine to a standstill) system exterminators have faced a constant spray of challenges. We talk with Allinea co-founder David Lecomber about challenges on Titan and Blue Waters–and the future of debugging exascale …

The Week in HPC Research

May 2, 2013 |

We’ve scoured the journals and conference proceedings to bring you the top research stories of the week. This diverse set of items includes the latest CAREER award recipient; the push to bring parallel computing to the classroom; HPC in accelerator science; the emerging Many-Task Computing paradigm; and a unified programming model for data-intensive computing.

The Week in HPC Research

Apr 25, 2013 |

We’ve scoured the journals and conference proceedings to bring you the top research stories of the week. This diverse set of items includes advancements in petascale-era development environments; balancing performance with power efficiency; optimizing computer science instruction; and a possible path to extreme heterogeneity.

Adapteva Shows Off $99 Supercomputer Boards

Apr 23, 2013 |

Last week, Adapteva revealed the first production units of its $99 Linux “supercomputer.” Speaking at the Linux Collaboration Summit in San Francisco, California, CEO Andreas Olofsson announced the first batch of Parallella final form factor boards will be shipped to the chipmaker’s 6,300 Kickstarter supporters by this summer.

The Week in HPC Research

Apr 11, 2013 |

The top research stories of the week include an evaluation of multi-stage programming with Terra; a look at parallel I/O for multicore architectures; a survey of on-chip monitoring approaches used in multicore SoCs; a review of grid security protocols and architectures; and a discussion of the finer distinctions between HPC and cloud computing.

Short Takes

Wolfram CEO Advances ‘A New Level of Computation’

Nov 27, 2013 |

Wolfram Research Founder and CEO Stephen Wolfram believes in the power of computation to shape the world. The company’s goal is to provide the framework to enable computation to reach its full potential in the coming decades. Facilitating this goal means making it possible to compute “whatever can be computed, whenever it is needed.” Earlier Read more…

Opening Up the Accelerator Advantage

Nov 26, 2013 |

Researchers at Georgia Institute of Technology and University of Southern California will receive nearly $2 million in federal funding for the creation of tools that will help developers exploit hardware accelerators in a cost-effective and power-efficient manner. The purpose of this three-year NSF grant is to bring formerly niche supercomputing capabilities into the hands of Read more…

Programming for Unreliable Hardware

Nov 11, 2013 |

As transistors approach sub-atomic sizes, reliability is increasingly jeopardized. Chipmakers keep figuring out technical workarounds to the miniaturization problem; however, prevailing wisdom maintains that current manufacturing techniques will sooner or later run out of steam, and Moore’s Law – the prediction that has yielded huge increases in semiconductor performance for nearly five decades – will Read more…

Optimizing Performance in Parallel Programming

Nov 5, 2013 |

Parallel computing refers to the simultaneous use of multiple processing elements to solve a computational problem. Large jobs are segmented into smaller parts, which are then solved concurrently. For most of the history of computing, serial computation was practiced; one instruction set would execute, then the next. Parallel computing arose in response to the constraints Read more…

Reining in Restarts Through Selective Recovery

Nov 4, 2013 |

Computational failures take a steep toll in the HPC sciences. Events such as broken node electronics, software bugs, insufficient hardware resources, and communication faults stymy work on expensive machines and bedevil computer scientists. An article at Deixis Magazine chronicles the work of a Pacific Northwest National Laboratory researcher who is developing load balancing techniques to Read more…

Off the Wire