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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…

Moving Down the Path Toward Code Modernization

Aug 19, 2015 |

“Code modernization” is a hot topic. While it is widely understood that applications need to evolve with hardware, there is lot of attention to evaluating how to do that well. Savvy customers ask about both portability and performance portability. Because the time and expertise to do the work is scarce and the willingness to do Read more…

NERSC’s ‘Shifter’ Makes Container-based HPC a Breeze

Aug 7, 2015 |

The explosive growth in data coming out of experiments in cosmology, particle physics, bioinformatics and nuclear physics is pushing computational scientists to design novel software tools that will help users better access, manage and analyze that data on current and next-generation HPC architectures. One increasingly popular approach is container-based computing, designed to support flexible, scalable Read more…

Reading List: Fault Tolerance Techniques for HPC

Aug 6, 2015 |

Among the chief challenges of deploying useful exascale machines, resilience looms large. Today’s error rates combined with tomorrow’s node counts cannot sustain a productive workflow without intervention. The significance of this issue has not gone unnoticed. A comprehensive collection of fault tolerance techniques are presented in one volume, called “Fault Tolerance Techniques for High-Performance Computing,” by editors Thomas Herault and Yves Read more…

Script for Bioinformatics App Nixes HPC File-System Tangle

Jul 31, 2015 |

Staff in NSF’s XSEDE network have created a script that avoids file-system tangles seen when scaling some common scientific applications for use on HPC systems, according to Antonio Gomez Iglesias of the Texas Advanced Computing Center (TACC). The fix can be useful to many users employing similar applications, he said Tuesday in a presentation at Read more…

AMD’s Exascale Strategy Hinges on Heterogeneity

Jul 29, 2015 |

In a recent IEEE Micro article, a team of engineers and computers scientists from chipmaker Advanced Micro Devices (AMD) detail AMD’s vision for exascale computing, which in its most essential form combines CPU-GPU integration with hardware and software support to facilitate the running of scientific workloads on exascale-class systems.

Cray Details Its Cluster Supercomputing Strategy

Jul 28, 2015 |

When iconic American supercomputer maker Cray purchased 20-year-old HPC cluster vendor Appro in late 2012, Cray CEO Peter Ungaro referred to Appro’s principal IP as “one of the most advanced industry clusters in the world.” At the time HPCwire reported that Cray would benefit from the product line and a bigger sales team from Appro, Read more…

DOE Exascale Plan Gets Support with Caveats

Jul 28, 2015 |

The DOE and the National Nuclear Security Administration (NNSA) plan to develop and deploy exascale technology by 2023 received strong backing yesterday from an Advanced Scientific Computing Advisory Committee (ASCAC) sub-committee but with caveats in the form of seven recommendations for strengthening management of the Exascale Computing Initiative (ECI). Subcommittee chair, Dan Reed, vice president Read more…

Tackling Power and Resilience at Exascale

Jul 21, 2015 |

Although the utility of FLOPS-driven benchmarks can make for interesting debate, the fact remains that major supercomputing milestones, like 1,000X performance advances, are integral to scientific discovery and also serve to drive interest and investment in the HPC ecosystem at large. The boon of accelerators helped propel HPC past the petascale marker in 2008, but fielding an Read more…

IDC: The Changing Face of HPC

Jul 16, 2015 |

At IDC’s annual ISC breakfast there was a good deal more than market update numbers although there were plenty of those: “We try to track every server sold, every quarter, worldwide,” said Earl Joseph, IDC program vice president and executive director HPC User Forum. Perhaps more revealing and as important this year was IDC’s unveiling Read more…

Mellanox, IBM, ORNL Spearhead UCX Framework Initiative

Jul 13, 2015 |

Interconnect technology specialist Mellanox announced at ISC today a collaboration to develop a new open-source network communication framework – United Communication X Framework (UCX) – for high- performance and data-centric applications. The effort is intended to provide platform abstractions supporting various communication technologies for “high performance compute, and data platforms” and will help pave the Read more…

Momentum Builds for Intel’s HPC Scalable System Framework

Jul 13, 2015 |

At a press conference on Friday, Intel delivered a progress report on the state of its unfolding HPC portfolio. With key products like Omni-Path and Knights Landing set to launch later this year, Intel is focusing on the momentum that is building for its HPC Scalable System Framework. The company also announced that it is entering into a deeper alliance Read more…

NVIDIA Wades Farther into Deep Learning Waters

Jul 7, 2015 |

Continuing the machine learning push that set the tone for this year’s GPU Technology Conference, NVIDIA is refreshing its GPU-accelerated deep learning software in tandem with the 2015 International Conference on Machine Learning (ICML), one of the major international conferences focused on the burgeoning domain. The announcement involves updates to CUDA, cuDNN, and DIGITS. Altogether the new features provide significant Read more…

Filippo Mantovani on What’s Next for Mont-Blanc and ARM

Jul 6, 2015 |

Firing up the Mont-Blanc prototype in mid-June at the Barcelona Supercomputing Center (BSC) was a significant milestone in the European effort to base HPC systems on energy efficient architecture. Mont-Blanc program coordinator Filippo Mantovani was quoted in the release announcing the prototype saying, “Now the challenge starts because with this platform we can foresee how Read more…