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TACC to Offer Training on Code Optimization for Intel Xeon Phi

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As the first installation to deploy the new MIC technology at large scale in the forthcoming Stampede supercomputer, TACC and partners will soon begin offering training workshops, technical documentation, and academic content to help the research community rapidly develop applications using Intel’s new Xeon Phi coprocessors.

MIC’s support of standard programming languages and tools allow almost any code to be compiled for MIC and natively executed on MIC,” explained TACC research staff member Lars Koesterke. “In fact, since the Xeon Phi development environment supports native C/C++ and Fortran cross-compilation and direct login access to the coprocessor, the porting process is generally very straightforward.” Koesterke notes, however, that optimization efforts should still be considered after initial porting to maximize vectorization and parallel efficiencies on this new architecture. These are focus areas of early TACC training and documentation.

In December and January, leading up to the launch of Stampede on January 7, both TACC and Cornell will offer training, first to early users and then to anyone interested in learning about the new technology. Information from the training will be made available online, helping to prepare the research community for Stampede. This will be followed by a new course at The University of Texas at Austin on hybrid programming for heterogeneous systems like Stampede.

For more details, read the Full Story or check out the TACC booth #1511 at SC12.

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Posted in Co-processors, Events, HPC, HPC Education and Training, HPC Hardware, SC12 | Leave a comment

Video: Simulating Patient-specific Nanoparticulate Drug Delivery

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In this video, TACC researchers use supercomputers to aid the fight against cardiovascular disease.

As the leading cause of death in the United States, heart attacks are caused by something known as vulnerable plaques, which are fatty lipid pool deposits in the inner layer of the arterial wall. After extensive computational research, TACC helped develop a 14-minute animation to explain the underlying nature of vulnerable plaques and a potential clinical procedure for treatment with the goal of personalizing diagnostic and therapeutic interventions in patients.

Not everyone knows about vulnerable plaque,” said Thomas Hughes, a professor at ICES. “Everybody hears about heart disease and heart attacks, yet vulnerable plaques are often the source—they are very insidious. If a vulnerable plaque ruptures and blocks flow to an area of the heart, it’s a heart attack; if it blocks a part of the brain, it’s a stroke.”

Communicating how this process works to patients can be difficult. but visualizations like this help dramatically. Read the Full Story.

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Video: What Happens After Moore’s Law?

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Over at ZDNet, Stephen Shankland takes a look at what happens when Moore’s Law runs out of steam for silicon.

I drive a 1964 car. I also have a 2010. There’s not that much difference — gross performance indicators like top speed and miles per gallon aren’t that different. It’s safer, and there are a lot of creature comforts in the interior,” said Nvidia Chief Scientist Bill Dally. If Moore’s Law fizzles, “We’ll start to look like the auto industry.”

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Terrel on Getting Started With Python in HPC

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Over at the Codematician blog, TACC’s Andy R. Terrel has written an excellent introduction to learning, speeding, and scaling Python for HPC.

Despite all the great features outlined above, the (mis)perception is that Python is too slow for HPC Development. While it is true that Python might not be the best language to write your tight loop and expect a high percentage of peak flop rate, it turns out that Python has a number of tools to help switch those lower-level languages.

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Video: Jack Dongarra on the Challenges of Exascale

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In this video from French supercomputer-maker Bull, Jack Dongarra from the University of Tennessee discusses the genesis of the LINPACK benchmark, the TOP500 list, and how to best measure real supercomputer application performance on the road to Exascale.

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Dell’s New High Density Server a House of Kepler

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Nvidia’s Geoff Ballew writes that Dell’s new line of high-density PowerEdge servers are designed for a range of high-volume, enterprise HPC, Big Data” and hosting applications. The new systems will support Nvidia’s new Tesla K20 GPU accelerators, which are based on the Kepler architecture.

The PowerEdge C8000 series will initially ship with Fermi-based Tesla M2090 GPUs. Future systems will offer the next-generation Tesla K20 GPUs – the same GPUs that will power supercomputers such as the world-leading Titan system at Oak Ridge National Labs, the Blue Waters system at the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, and the Stampede system at the Texas Advanced Computing Center.

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Video: TACC Prepares for Stampede Super

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In this video, the Texas Advanced Computing Center makes preparations for the Stampede supercomputer. When fully deployed in 2013, the 9 Petaflop Stampede system will employ Intel Xeon Phi coprocessors and innovative cooling technologies.

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Posted in HPC, New Installations | 1 Comment

9 Petaflop Stampede Super Coming to TACC in January

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Over at BSN, Theo Valich writes that Jay Boisseau’s presentation at the recent Intel Developer Forum sheds light on TACC’s plans to deploy the Stampede supercomputer powered by Xeon Phi co-processors.

The system originally targeted 10 PFLOPS, but it seems they might miss the mark by a few dozen/hundred TFLOPS. According to information given, the Stampede deploys 2 PFLOPS of compute power through Sandy Bridge-EP based Xeon CPUs and no less than 7 PFLOPS using Xeon Phi “coprocessors”. Even though TACC did not disclose how many thousands of Dell servers are being deloyed, we know that the supercomputer has 272TB of DDR3 memory and 14PB of total storage. The Xeon processor is E5-2680 (Sandy Bridge-EP), while TACC is using special versions of pre-production Xeon Phi processors in order to make the launch.

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Video: Dell’s Project Copper ARM Servers

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In this video, Dell’s Rafael Zamora describes a prototype from the company’s Project Copper, an ARM-based server platform that provides extremely high density (48 servers in 3U) and 50 percent less power consumption than comparable x86 devices. While not currently available to the public, Project Copper is a developers platform designed to seed an ecosystem for ARM servers.

The “Copper” ARM server is perfect for test and development, with its streamlined design, low power consumption and ease of deployment. At Dell, we understand you need to use new technology in your environment to accurately assess its capabilities against your specific workloads and ecosystem. A test-drive can help you evaluate how you can get the most out of new technology in the real world, not just on paper.”

Research centers including TACC are testing Project Copper devices as a potential cloud platform. Read the Full Story.

A Tip of the Hat goes out to Datacenter Knowledge for pointing us to this story.

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Video: How Planets are Born

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Our Video Sunday feature continues with look at how researchers are using simulated models to further planetary science. Sally Dodson-Robinson of the University of Texas at Austin uses the Ranger supercomputer to perform advanced simulations that cover a timescale of millions of years.

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Farber Tutorial on the OpenACC Execution Model

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Over at Dr. Dobbs, Rob Farber continues his series of tutorials on OpenACC with an introduction to parallel regions and how the gang, worker, and vector clauses affect the execution model.

In a nutshell, OpenACC parallel regions are useful because they let programmers annotate code in a style that is conceptually very similar to OpenMP. Kernel regions allow the compiler to automatically generate CUDA-style kernels, which gives advanced programmers the ability to express any CUDA kernel launch configuration using portable directive-based OpenACC syntax. Engineers at PGI wrote an excellent description of the difference between the OpenACC parallel and kernels constructs and how they map to NVIDIA devices.

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SDSC to Lead Development of NSF Science Gateway Institute

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This week SDSC, ECSU, IU, Purdue, TACC and Michigan were awarded an NSF grant to plan a new Science Gateways Institute. SDSC will be the lead institution on the project, which will support development of Web-based portals to aid researchers.

The gateway framework we envision is a modular, layered approach that supports community contributions and allows developers to pick and choose the components they need, from job submission and security modules to an entire end-to-end solution,” said Dan Stanzione, deputy director at TACC and co-investigator on the project. “Gateways are growing in importance to us as we expand beyond our traditional user base; this project will help us reach many new communities of users.”

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Video: Jay Boisseau on the Scientific Importance of Supercomputing in Texas

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In this video, TACC Director Jay Boisseau presents: The Scientific Importance and Competitive Advantage of Supercomputing to Texas. Recorded at the TAMEST 2012 Conference.

TACC works closely with industry and the academic community to develop new computing architectures and software technologies, and promotes science and technology breakthroughs to the public through education, outreach and training events. As we continue to move towards a world where advanced computing is ubiquitous in the conduct of science and engineering, TACC will be at the vanguard of this transformation.


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TACC Researchers Developing “Drop Dead Simple” AGAVE API for Scientists

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It’s no secret that many researchers today find themselves devoting a lot of their effort into writing code when they’d rather be doing science. In an effort to change that, staff at the Texas Advanced Computing Center have developed the AGAVE API, a new tool to make scientific computing on the web more functional and intuitive.

When services have been built to that level, research starts moving really fast,” said Rion Dooley, a research associate at TACC and one of the creators of the API. “You can start leveraging manpower and focus exclusively on the science rather than the computation and technology needed to accomplish that science.”

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Video: Neelie Kroes on the European Race to Exascale

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In this video, Neelie Kroes, VP of the European Commission describes how France has supported PRACE with the CURIE petascale supercomputer. The commission is committed to make Europe is a leader in the Exascale race and a center of excellence in terms of innovation and scientific research.

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