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The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
  • 2017-10-09 10:05:11
  • Article ID: 682524

Leaning Into the Supercomputing Learning Curve

  • Credit: Argonne National Laboratory

    Recently, 70 scientists — graduate students, computational scientists, and postdoctoral and early-career researchers — attended the fifth annual Argonne Training Program on Extreme-Scale Computing (ATPESC) in St. Charles, Illinois. Over two weeks, they learned how to seize opportunities offered by the world’s fastest supercomputers.

  • Credit: Argonne National Laboratory

    At ATPESC, scientists, high-performance computing experts and other leaders discussed many areas of supercomputing, including hardware architectures, programming models and languages and machine learning.

What would you do with a supercomputer that is at least 50 times faster than today’s fastest machines? For scientists and engineers, the emerging age of exascale computing opens a universe of possibilities to simulate experiments and analyze reams of data — potentially enabling, for example, models of atomic structures that lead to cures for disease.

But first, scientists need to learn how to seize this opportunity, which is the mission of the Argonne Training Program on Extreme-Scale Computing (ATPESC). The training is part of the Exascale Computing Project, a collaborative effort of the U.S. Department of Energy’s (DOE) Office of Science and its National Nuclear Security Administration.

 “We aim to touch on all of the key skills and approaches a researcher needs to take advantage of the world’s most powerful computing systems.” - ATPESC program director Marta García, a computational scientist at the Argonne Leadership Computing Facility

Starting in late July, 70 participants — graduate students, computational scientists, and postdoctoral and early-career researchers — gathered at the Q Center in St. Charles, Illinois, for the program’s fifth annual training session. This two-week course is designed to teach scientists key skills and tools and the most effective ways to use leading-edge supercomputers to further their research aims.

This year’s ATPESC agenda once again was packed with technical lectures, hands-on exercises and dinner talks.

“Supercomputers are extremely powerful research tools for a wide range of science domains,” said ATPESC program director Marta García, a computational scientist at the Argonne Leadership Computing Facility (ALCF), a DOE Office of Science User Facility at the department’s Argonne National Laboratory.

“But using them efficiently requires a unique skill set. With ATPESC, we aim to touch on all of the key skills and approaches a researcher needs to take advantage of the world’s most powerful computing systems.”

To address all angles of high-performance computing, the training focuses on programming methodologies that are effective across a variety of supercomputers — and that are expected to apply to exascale systems. Renowned scientists, high-performance computing experts and other leaders in the field served as lecturers and guided the hands-on sessions.

This year, experts covered:

  • Hardware architectures
  • Programming models and languages
  • Data-intensive computing, input/output (I/O) and machine learning
  • Numerical algorithms and software for extreme-scale science
  • Performance tools and debuggers
  • Software productivity
  • Visualization and data analysis

In addition, attendees tapped hundreds of thousands of cores of computing power on some of today’s most powerful supercomputing resources, including the ALCF’s Mira, Cetus, Vesta, Cooley and Theta systems; the Oak Ridge Leadership Computing Facility’s Titan system; and the National Energy Research Scientific Computing Center’s Cori and Edison systems – all DOE Office of Science User Facilities.

“I was looking at how best to optimize what I’m currently using on these new architectures and also figure out where things are going,” said Justin Walker, a Ph.D. student in the University of Wisconsin-Madison’s Physics Department. “ATPESC delivers on instructing us on a lot of things.”

Shikhar Kumar, Ph.D. candidate in nuclear science and engineering at the Massachusetts Institute of Technology, elaborates: “On the issue of I/O, data processing, data visualization and performance tools, there isn’t a single option that is regarded as the ‘industry standard.’ Instead, we learned about many of the alternatives, which encourages learning high-performance computing from the ground up.”

“You can’t get this material out of a textbook,” said Eric Nielsen, a research scientist at NASA’s Langley Research Center. Added Johann Dahm of IBM Research, “I haven’t had this material presented to me in this sort of way ever.”

Jonathan Hoy, a Ph.D. student at the University of Southern California, pointed to the larger, “ripple effect” role of this type of gathering: “It is good to have all these people sit down together. In a way, we’re setting standards here.”

Lisa Goodenough, a postdoctoral researcher in high energy physics at Argonne, said: “The theme has been about barriers coming down.” Goodenough referred to both barriers to entry and training barriers hindering scientists from realizing scientific objectives.

“The program was of huge benefit for my postdoctoral researcher,” said Roseanna Zia, assistant professor of chemical engineering at Stanford University. “Without the financial assistance, it would have been out of my reach,” she said, highlighting the covered tuition fees, domestic airfare, meals and lodging.

Now, anyone can learn from the program’s broad curriculum, including the slides and videos of the lectures from some of the world’s foremost experts in extreme-scale computing, online — underscoring program organizers’ efforts to extend its reach beyond the classroom. The slides and the videos of the lectures captured at ATPESC 2017 are now available online at: http://extremecomputingtraining.anl.gov/2017-slides

and http://extremecomputingtraining.anl.gov/2017-videos, respectively.

For more information on ATPESC, including on applying for selection to attend next year’s program, visit http://extremecomputingtraining.anl.gov.

This research was supported by the Exascale Computing Project (17-SC-20-SC), a joint project of the U.S. Department of Energy’s Office of Science and National Nuclear Security Administration, responsible for delivering a capable exascale ecosystem, including software, applications and hardware technology, to support the nation’s exascale computing imperative.

Established by Congress in 2000, the National Nuclear Security Administration (NNSA) is a semi-autonomous agency within the U.S. Department of Energy responsible for enhancing national security through the military application of nuclear science. NNSA maintains and enhances the safety, security, and effectiveness of the U.S. nuclear weapons stockpile without nuclear explosive testing; works to reduce the global danger from weapons of mass destruction; provides the U.S. Navy with safe and effective nuclear propulsion; and responds to nuclear and radiological emergencies in the U.S. and abroad. Visit nnsa.energy.gov for more information.

Argonne National Laboratory seeks solutions to pressing national problems in science and technology. The nation's first national laboratory, Argonne conducts leading-edge basic and applied scientific research in virtually every scientific discipline. Argonne researchers work closely with researchers from hundreds of companies, universities, and federal, state and municipal agencies to help them solve their specific problems, advance America's scientific leadership and prepare the nation for a better future. With employees from more than 60 nations, Argonne is managed by UChicago Argonne, LLC for the U.S. Department of Energy's Office of Science.

The U.S. Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time. For more information, visit the Office of Science website.

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