Sign up for our newsletter and get the latest HPC news and analysis.

Podcast: Satoshi Matsuoka on the Convergence of HPC and Big Data


“Rapid growth in the use cases and demands for extreme computing and huge data processing is leading to convergence of the two infrastructures. The trend towards convergence is not only strategic however but rather inevitable as the Moore’s law ends such that sustained growth in data capabilities, not compute, will advance the capacity and thus the overall capacities towards accelerating research and ultimately the industry.”

Achieving Near-Native GPU Performance in the Cloud

John Paul Walters

“In this session we describe how GPUs can be used within virtual environments with near-native performance. We begin by showing GPU performance across four hypervisors: VMWare ESXi, KVM, Xen, and LXC. After showing that performance characteristics of each platform, we extend the results to the multi-node case with nodes interconnected by QDR InfiniBand. We demonstrate multi-node GPU performance using GPUDirect-enabled MPI, achieving efficiencies of 97-99% of a non-virtualized system.”

Apply Now for SC15 Doctoral Showcase


SC15 is now accepting applications for their Doctoral Showcase. As part of the Technical Program, the Doctoral Showcase provides an important opportunity for students near the end of their Ph.D. to present a summary of their dissertation research in the form of short talks and posters.

Gather Scatter Operations


Gather and scatter operations are used in many domains. However, to use these types of functions on an SIMD architecture creates some programming challenges.

Simulating Global Atmosphere with NICAM on TSUBAME2.5 Using OpenACC


“OpenACC was applied to the a global high-resolution atmosphere model named NICAM. We executed the dynamical core test without re-writing any specific kernel subroutines for GPU execution. Only 5% of the lines of source code were modified, demonstrating good portability. The results showed that the kernels generated by OpenACC achieved good performance, which was appropriate to the memory performance of GPU, as well as weak scalability. A large-scale simulation was carried out using 2560 GPUs, which achieved 60 TFLOPS.”

Podcast: Arden L. Bement on Blue Waters and the Future of HPC

Arden L. Bement

In this podcast from the 2015 NCSA Blue Waters Symposium, Arden L. Bement discusses the Blue Waters supercomputer and the future of HPC. Formerly Director of the NSF, Bement keynoted the symposium and is currently the Davis A. Ross Distinguished Professor Emeritus and Adjunct Professor of the College of Technology at Purdue University.

Video: Teaching Machines to Diagnose Cancer


In this PBS video, Hari Sreenivasan reports on how tech firms are investing in the next generation of intelligent computer programs and in what ways the technology still lags behind humans. The report also takes a closer look at teaching machines to diagnose cancer.

Attacking HIV with Titan and Blue Waters


“The highly parallel molecular dynamics code NAMD was was one of the first codes to run on a GPU cluster when G80 and CUDA were introduced in 2007, and is now used to perform petascale biomolecular simulations, including a 64-million-atom model of the HIV virus capsid, on the GPU-accelerated Cray XK7 Blue Waters and ORNL Titan machines.”

SERC Installs India’s First Petaflop Supercomputer


Today Cray announced that the SERC Research Center in Bangalore has installed India’s first Petaflop supercomputer. Called “SahasraT,” the 1.4 Petaflop Cray XC40 supercomputer is a hybrid system with Intel Xeon processors, Intel Xeon Phi coprocessors, and Nvidia GPUs.

Supercomputing Quantum Mechanics


Supercomputers in the USA, Europe, and Japan have proved indispensable for research into the effects of quantum mechanics at hugely different length scales.