Topics » Developer Tools

Exascale Programming: Adapting What We Have Can (and Must) Work

Jan 14, 2016 |

The demands of massive concurrency and increased resilience required for effective exascale computing have led to claims that our existing approach to application programming must be replaced. In this article I argue that disruption is inevitable but will not require new languages or programming environments. Instead disruption will be in application design, introducing new control Read more…

Moore’s Law – Not Dead – and Intel’s Use of HPC to Keep it Alive

Jan 11, 2016 |

Gordon Moore’s 1965 article on the economics driving the increase of semiconductor functionality has turned out to be wildly prophetic in terms of the effect on transistor scaling. Nearly 40 years later, in 2004, Intel was building microprocessors on the 90 nanometer process with 150 million transistors in a single chip. Today, we’re putting as Read more…

Barbara Chapman Named Head of Brookhaven Lab’s Computer Science and Mathematics Group

Jan 7, 2016 |

Barbara Chapman, a leading researcher in programming languages, programming models, and compilers, has been named head of the Computer Science and Mathematics Group (CSM) under the new Computational Science Initiative at the U.S. Department of Energy’s Brookhaven National Laboratory. Chapman is also a professor of Applied Mathematics & Statistics and Computer Science at Stony Brook Read more…

NVIDIA Pascal GPUs Coming to Automotive ‘Supercomputer’

Jan 6, 2016 |

It’s no secret that NVIDIA is eager to take elements of its successful GPGPU ecosystem developed in partnership with the HPC community and transfer these to the much broader, and more lucrative, consumer space. At SC15, CEO Jen-Hsun Huang referred to machine learning as HPC’s first consumer killer app. Google, Microsoft, and Facebook have all made major machine Read more…

SC15 Video: Mellanox’s Gilad Shainer on Co-design, Exascale, UCX, and More

Dec 21, 2015 |

Smart switches, major deployment wins, HPC Centers of Excellence, NICs with on-board FPGAs, and UCX progress were all part of Mellanox’s hectic agenda at SC15. In mid-December DoD approved Mellanox 10/40 Gigabit Ethernet switches for use in defense networks. Then last week, time ran out for acquisition target EZchip to find a higher offer seemingly Read more…

SC15 Video: IBM’s Dave Turek on Big Data, CORAL, and HPC’s Evolution

Dec 8, 2015 |

Accelerated computing certainly dominated the IBM message at SC15 but there were many sub-themes in Austin. Big data, the beneficial impact of software frameworks (think Apache Spark), workflow optimization, and a growing role for cloud in HPC delivery were all in the mix. HPCwire managing editor John Russell sat down with Dave Turek, IBM VP Read more…

SC15 Video: Intel’s Saleh on OpenHPC, Rise of Big Data, and More

Dec 3, 2015 |

Intel always has a lot going on at SC. This year, its Scalable System Framework, Omni-Path Architecture, Knights Landing (up & running) and leading role in OpenHPC were all on the docket. Of course, there was the usual Intel-IBM (re: OpenPOWER) rivalry – much of the buzz this year was around whose approach to delivering Read more…

Contrary View: CPUs Sometimes Best for Big Data Visualization

Dec 1, 2015 |

Contrary to conventional thinking, GPUs are often not the best vehicles for big data visualization. In this commentary, I discuss several key technical reasons why a CPU-based “Software Defined Visualization” approach can deliver a more flexible, performant, scalable, cost effective, and power efficient solution to big data visualization than a conventional GPU-based approach. An example Read more…

4th HPCG List Features 240% Growth In Machine Entries

Nov 20, 2015 |

The High Performance Conjugate Gradients (HPCG) Benchmark list was announced at SC’15. This is the fourth list produced for the emerging benchmark designed to complement the traditional High Performance LINPACK (HPL) benchmark used as the official metric for ranking the TOP500 systems. The first HPCG list was announced at ISC’14 a year and a half Read more…

HPCwire Debuts Outstanding Leadership Awards at SC15

Nov 16, 2015 |

This year HPCwire has established a new category within its Annual Readers and Editors Choice Awards program to recognize Outstanding Leadership in HPC. We realize there is no single preeminent leader in HPC and that’s a good thing. The diversity of opinion and expertise is a major driver of progress. There are many individuals whose Read more…

Mellanox, ORNL to Deliver UCX Progress Report at SC15

Nov 16, 2015 |

At ISC2015 Mellanox introduced a new open-source network communication framework – United Communication X Framework (UCX) – for high-performance and data-centric applications. At the time Gilad Shainer of Mellanox said, “By providing our advancements in shared memory, MPI and underlying network transport technologies, we can continue to advance open standards-based networking and programming models. UCX Read more…

Think Fast: IBM Talks Acceleration in HPC and the Enterprise

Nov 16, 2015 |

At SC15 today, IBM provided a glimpse of its broadening vision for accelerator-assisted computing with announcements around Watson, a strategic alliance with FPGA specialist Xilinx, an expanded developer outreach via the SuperVessel program, and new efforts to accelerate the datacenter and a wide variety of applications used in both HPC and the enterprise. “Accelerators have Read more…

Hadoop and Spark Get RADICAL at SC15

Nov 13, 2015 |

The rapid maturation of the Apache Hadoop ecosystem has caught the eyes of HPC professionals who are eager to take advantage of emerging big data tools, such as Spark. One HPC group presenting on the topic at the SC15 show this week in Austin, Texas, is Rutgers University’s RADICAL team. The Research in Advanced Distributed Read more…

OpenACC Reviews Latest Developments and Future Plans

Nov 11, 2015 |

This week during the lead up to SC15 the OpenACC standards group announced several new developments including the release and ratification of the 2.5 version of the OpenACC API specification, member support for multiple new OpenACC targets, and other progress with the standard. “The 2.5 specification addresses an essential challenge of profiling code where a Read more…

The Beowulf Bash: Give a Little, Get a Lot

Nov 10, 2015 |

Sixteen years ago at SC99 in Portland OR, a group of individuals met in a room on Monday night after the opening gala. The affair was not fancy — some chips, pretzels, wine, and of course, beer. There were two strange things about the event. Many of the people had never met before, and several vendors help foot the Read more…

PGI Accelerator Compilers Add OpenACC Support for x86 Multicore CPUs

Oct 29, 2015 |

NVIDIA today announced availability of its newest PGI Accelerator Fortran, C and C++ compilers (version 15.10) now with support for OpenACC directives-based parallel programming standard on x86 architecture multicore microprocessors. The new compilers allow OpenACC-enabled source code to be compiled for parallel execution on a multicore CPU or a GPU accelerator. “Our goal is to Read more…

Jack Dongarra et al. on Numerical Algorithms and Libraries at Exascale

Oct 19, 2015 |

The HPC software research community greeted this summer’s announcement of the President’s National Strategic Computing Initiative (NSCI) with tremendous enthusiasm. This response is easy to understand. More than twenty-five years have passed since a US administration last proposed such a coordinated, long term, multiagency strategy to improve the nation’s economic competitiveness and scientific research prowess Read more…

Defining Scalable OS Requirements for Exascale and Beyond

Oct 5, 2015 |

Over the past couple of decades two primary trends have driven system software for supercomputers to become significantly more complex. First, hardware has become more complex. Massive inter-node parallelism (100,000+ nodes), increasingly large intra-node parallelism (100+ hardware threads), wider vector units, accelerators, coprocessors, etc., have required that system software play a larger role in delivering Read more…

IBM’s HPC Strategy is to “Connect the Dots” Globally

Aug 31, 2015 |

On Friday IBM announced a formal collaboration with GENCI to prepare scientific codes for the path to exascale. In July IBM announced its second European POWER Acceleration and Design Center (PADC), this one in Montpellier, France. It’s also the locus for the GENCI work. Last November IBM opened the first PADC, this one in Germany Read more…

COSMOS Team Achieves 100x Speedup on Cosmology Code

Aug 24, 2015 |

One of the most popular sessions at the Intel Developer Forum last week in San Francisco, and certainly one of the most exciting from an HPC perspective, brought together two of the world’s foremost experts in parallel programming to discuss current state-of-the-art methods for leveraging parallelism on processors and coprocessors. The speakers, Intel’s Jim Jeffers and Read more…