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Two More Steps Towards Quantum Computing

Correlated syndrome single-shot histograms and quantum state tomography of code qubits.

Quantum computing has taken a step closer with two recent announcements demonstrating methods for error correction in addition to a new scalable design for quantum circuits based on a lattice structure.

Barcelona Team to Build ARM Cluster at ISC Student Cluster Competition

ARMaggedon team from BSC; Luna Backes, Josep Oriol, Vilarrubi, Dani Ruiz, Miquel Vidal, Xavier Yepes, and Marc Josep.

A team of six undergraduate students from Barcelona School of Informatics involved in the Mont-Blanc project have been selected to take part in the 4th HPCAC-ISC Student Cluster Competition.

Video: A Bioinformatics Pipeline for Analyzing Patient Tumours


In this video from WestGrid in Canada, Dr. Yussanne Ma from the Michael Smith Genome Sciences Centre describes how high performance computing supports her research group’s work, highlighting a recent project where a bioinformatics pipeline was built for the personalized onco-genomics project (POG) at the BC Cancer Agency.

Podcast: Cray’s Steve Scott on Programming for the Next Decade

Steve Scott

“Our computing systems continue to evolve, providing significant challenges to the programming teams managing large, long-lived projects. Issues include rapidly increasing on-node parallelism, varying forms of heterogeneity, deepening memory hierarchies, growing concerns around resiliency and silent data corruption, and worsening storage bottlenecks.”

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.