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Interview: Hot Interconnects Conference Returns to Santa Clara Aug 26-28

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“This year we have a specific focus on the latest advances in different areas of networks, showcasing some of the latest and greatest next generation networking hardware. Our focus on Data Center vs. HPC networks will allow for an exchange that will benefit both communities.”

Eurotech QPACE2 Supercomputer Ranks 379 on TOP500

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Last week at ISC 2015, Eurotech announced that the company has completed the installation of a new supercomputer prototype at the University of Regensburg. With 15,872 compute cores, the QPACE2 supercomputer is ranked #370 on the June 15 TOP500 list.

New UCX Network Communication Framework for Next-Gen Programming Models

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UCX is a collaboration between industry, laboratories, and academia to create an open-source production grade communication framework for HPC applications. “The path to Exascale, in addition to many other challenges, requires programming models where communications and computations unfold together, collaborating instead of competing for the underlying resources. In such an environment, providing holistic access to the hardware is a major component of any programming model or communication library. With UCX, we have the opportunity to provide not only a vehicle for production quality software, but also a low-level research infrastructure for more flexible and portable support for the Exascale-ready programming models.”

Video: RDMA Container Support

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In this video from the 2015 OFS Workshop, Liran Liss from Mellanox presents: RDMA Container Support.

IBTA Launches the RoCE Initiative

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Today the InfiniBand Trade Association (IBTA) announced the launch of the RoCE Initiative to further the advancement of RDMA over Converged Ethernet (RoCE) technology and promote RoCE awareness.

UPC and OpenSHMEM PGAS Models on GPU Clusters

DK Panda, Ohio State University

“Learn about extensions that enable efficient use of Partitioned Global Address Space (PGAS) Models like OpenSHMEM and UPC on supercomputing clusters with NVIDIA GPUs. PGAS models are gaining attention for providing shared memory abstractions that make it easy to develop applications with dynamic and irregular communication patterns. However, the existing UPC and OpenSHMEM standards do not allow communication calls to be made directly on GPU device memory. This talk discusses simple extensions to the OpenSHMEM and UPC models to address this issue.”

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.”

SGI Powers Earthquake Research in Japan

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Today SGI announced that the Earthquake and Volcano Information Center of the Earthquake Research Institute (ERI) at the University of Tokyo, has deployed a large-scale parallel computing solution from SGI for leading-edge seismological and volcanological research.

Video: Applications Performance Optimizations – Best Practices

Pak Lui

“To achieve good scalability performance on the HPC scientific applications typically involves good understanding of the workload though performing profile analysis, and comparing behaviors of using different hardware which pinpoint bottlenecks in different areas of the HPC cluster. In this session, a selection of HPC applications will be shown to demonstrate various methods of profiling and analysis to determine the bottleneck, and the effectiveness of the tuning to improve on the application performance.”

Video: The InfiniBand Subnet Manager from Fabriscale

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In this video from the 2015 HPC Advisory Council Switzerland Conference, Tor Skeie from Simula Laboratory presents: The InfiniBand Subnet Manager from Fabriscale.