ALCF Hands-On Workshop Connects Researchers with HPC Experts

July 5, 2018

July 3, 2018 — For three days this May, more than 40 researchers visited the Argonne Leadership Computing Facility (ALCF), a U.S. Department of Energy (DOE) Office of Science User Facility, to improve the performance of their computational science codes by working alongside the experts who know the facility’s supercomputers best.

2018 ALCF Computational Performance Workshop. Image courtesy of ALCF.

With extensive hands-on sessions, dedicated access to ALCF systems, and introductions to the tools, services, and computing resources available to facility users, the annual ALCF Computational Performance Workshop is designed to accelerate researchers’ efforts to test, debug, and optimize their codes on leadership-class systems.

“Over the course of three days, we accomplished what would have probably taken us a month and a half to do on our own,” said Thomas Robinson, a member of the Modeling Systems Group in the National Oceanic and Atmospheric Administration’s Geophysical Fluid Dynamics Laboratory (GFDL). Robinson attended the workshop to prepare the GFDL’s atmosphere model (AM4) to run on ALCF computing resources.

Every year, the ALCF hosts hands-on workshops to connect current and prospective users with ALCF staff members and high-performance computing (HPC) experts from places like Intel, Cray, ParaTools (TAU), and Rice University (HPCToolkit).

“The face-to-face time afforded by our on-site workshops often results in significant code improvements,” said Ray Loy, ALCF’s lead for training, debuggers, and math libraries. “Not only can attendees work on performance issues with staff and vendor experts in real time, they also form working relationships that extend well beyond the three-day workshop.”

In addition to the hands-on sessions, the event featured talks on a wide range of topics, including ALCF system architectures, debugging and performance profiling tools, optimizing I/O, and data and learning frameworks. The workshop agenda and presentation slides can be viewed here.

Federico Zahariev, an associate scientist at Iowa State University, attended the workshop to gain experience with the tools and frameworks available to improve code performance on leadership computing systems.

“The beauty of this workshop is the combination of lectures and the actual hands-on work,” said Zahariev, who is working on an application development project involving the GAMESS code for DOE’s Exascale Computing Project. “You hear about a tool or method and then you have an opportunity to work with the presenter to figure how to apply it to your code.”

One of the workshop’s primary goals is to help researchers demonstrate computational readiness for ALCF project proposals through allocation programs like the ALCF Data Science Program (ADSP) and the Innovative and Novel Computational Impact on Theory and Experiment (INCITE).

For Robinson and his GFDL colleague Jessica Liptak, the workshop presented an opportunity to jumpstart their efforts to prepare for a future allocation award. They spent a bulk of their time working with Vitali Morozov, ALCF’s lead for application performance and performance modeling, to compile and run AM4 on the facility’s Mira and Theta systems.

In the matter of a few days, the researchers went from carrying out a preliminary seven-node simulation on Theta to using 2,996 nodes for a significant ensemble run comprised of 107 bundled subjobs that used different parameters to simulate one year of global climate conditions.

“We definitely gave Theta a workout. We burned through about 2.1 million core-hours in our three days at the ALCF,” Liptak said. “Working with Vitali, who helped us get our finicky code to run on Theta and build on Mira, and having access to the large amount of compute time, were both vital to our success at the workshop.”

The GFDL researchers plan to do preliminary analysis of the data generated by their Theta simulations to determine how the results compare to those produced by ensemble simulations performed on Gaea, GFDL’s in-house computing system. This is part of a larger effort to study the deviation of results from several climate evolution simulations run on different platforms using a variety of compilers and compiler options.

After the workshop, Robinson and Liptak applied for and received a Director’s Discretionary award to continue their work on ALCF computing systems in advance of applying for a larger allocation award.

“We need to run several hundred more year-long ensembles with each compiler and optimization on Theta and Mira to build a statistically viable dataset,” Robinson said. “Ultimately, we want to use the ensemble-based metrics to develop a portable code base that will allow the GFDL model to run climate simulations on any machine.”

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.


Source: ALCF

Subscribe to HPCwire's Weekly Update!

Be the most informed person in the room! Stay ahead of the tech trends with industy updates delivered to you every week!

Pfizer HPC Engineer Aims to Automate Software Stack Testing

January 17, 2019

Seeking to reign in the tediousness of manual software testing, Pfizer HPC Engineer Shahzeb Siddiqui is developing an open source software tool called buildtest, aimed at automating software stack testing by providing the community with a central repository of tests for common HPC apps and the ability to automate execution of testing. Read more…

By Tiffany Trader

Senegal Prepares to Take Delivery of Atos Supercomputer

January 16, 2019

In just a few months time, Senegal will be operating the second largest HPC system in sub-Saharan Africa. The Minister of Higher Education, Research and Innovation Mary Teuw Niane made the announcement... Read more…

By Tiffany Trader

Google Cloud Platform Extends GPU Instance Options

January 16, 2019

If it's Nvidia GPUs you're after to power your AI/HPC/visualization workload, Google Cloud has them, now claiming "broadest GPU availability." Each of the three big public cloud vendors has by turn touted the latest and Read more…

By Tiffany Trader

HPE Extreme Performance Solutions

HPE Systems With Intel Omni-Path: Architected for Value and Accessible High-Performance Computing

Today’s high-performance computing (HPC) and artificial intelligence (AI) users value high performing clusters. And the higher the performance that their system can deliver, the better. Read more…

IBM Accelerated Insights

Resource Management in the Age of Artificial Intelligence

New challenges demand fresh approaches

Fueled by GPUs, big data, and rapid advances in software, the AI revolution is upon us. Read more…

STAC Floats ML Benchmark for Financial Services Workloads

January 16, 2019

STAC (Securities Technology Analysis Center) recently released an ‘exploratory’ benchmark for machine learning which it hopes will evolve into a firm benchmark or suite of benchmarking tools to compare the performanc Read more…

By John Russell

Google Cloud Platform Extends GPU Instance Options

January 16, 2019

If it's Nvidia GPUs you're after to power your AI/HPC/visualization workload, Google Cloud has them, now claiming "broadest GPU availability." Each of the three Read more…

By Tiffany Trader

STAC Floats ML Benchmark for Financial Services Workloads

January 16, 2019

STAC (Securities Technology Analysis Center) recently released an ‘exploratory’ benchmark for machine learning which it hopes will evolve into a firm benchm Read more…

By John Russell

A Big Data Journey While Seeking to Catalog our Universe

January 16, 2019

It turns out, astronomers have lots of photos of the sky but seek knowledge about what the photos mean. Sound familiar? Big data problems are often characterize Read more…

By James Reinders

Intel Bets Big on 2-Track Quantum Strategy

January 15, 2019

Quantum computing has lived so long in the future it’s taken on a futuristic life of its own, with a Gartner-style hype cycle that includes triggers of innovation, inflated expectations and – though a useful quantum system is still years away – anticipatory troughs of disillusionment. Read more…

By Doug Black

IBM Quantum Update: Q System One Launch, New Collaborators, and QC Center Plans

January 10, 2019

IBM made three significant quantum computing announcements at CES this week. One was introduction of IBM Q System One; it’s really the integration of IBM’s Read more…

By John Russell

IBM’s New Global Weather Forecasting System Runs on GPUs

January 9, 2019

Anyone who has checked a forecast to decide whether or not to pack an umbrella knows that weather prediction can be a mercurial endeavor. It is a Herculean task: the constant modeling of incredibly complex systems to a high degree of accuracy at a local level within very short spans of time. Read more…

By Oliver Peckham

The Case Against ‘The Case Against Quantum Computing’

January 9, 2019

It’s not easy to be a physicist. Richard Feynman (basically the Jimi Hendrix of physicists) once said: “The first principle is that you must not fool yourse Read more…

By Ben Criger

The Deep500 – Researchers Tackle an HPC Benchmark for Deep Learning

January 7, 2019

How do you know if an HPC system, particularly a larger-scale system, is well-suited for deep learning workloads? Today, that’s not an easy question to answer Read more…

By John Russell

Quantum Computing Will Never Work

November 27, 2018

Amid the gush of money and enthusiastic predictions being thrown at quantum computing comes a proposed cold shower in the form of an essay by physicist Mikhail Read more…

By John Russell

Cray Unveils Shasta, Lands NERSC-9 Contract

October 30, 2018

Cray revealed today the details of its next-gen supercomputing architecture, Shasta, selected to be the next flagship system at NERSC. We've known of the code-name "Shasta" since the Argonne slice of the CORAL project was announced in 2015 and although the details of that plan have changed considerably, Cray didn't slow down its timeline for Shasta. Read more…

By Tiffany Trader

AMD Sets Up for Epyc Epoch

November 16, 2018

It’s been a good two weeks, AMD’s Gary Silcott and Andy Parma told me on the last day of SC18 in Dallas at the restaurant where we met to discuss their show news and recent successes. Heck, it’s been a good year. Read more…

By Tiffany Trader

The Case Against ‘The Case Against Quantum Computing’

January 9, 2019

It’s not easy to be a physicist. Richard Feynman (basically the Jimi Hendrix of physicists) once said: “The first principle is that you must not fool yourse Read more…

By Ben Criger

US Leads Supercomputing with #1, #2 Systems & Petascale Arm

November 12, 2018

The 31st Supercomputing Conference (SC) - commemorating 30 years since the first Supercomputing in 1988 - kicked off in Dallas yesterday, taking over the Kay Ba Read more…

By Tiffany Trader

Contract Signed for New Finnish Supercomputer

December 13, 2018

After the official contract signing yesterday, configuration details were made public for the new BullSequana system that the Finnish IT Center for Science (CSC Read more…

By Tiffany Trader

Nvidia’s Jensen Huang Delivers Vision for the New HPC

November 14, 2018

For nearly two hours on Monday at SC18, Jensen Huang, CEO of Nvidia, presented his expansive view of the future of HPC (and computing in general) as only he can do. Animated. Backstopped by a stream of data charts, product photos, and even a beautiful image of supernovae... Read more…

By John Russell

HPE No. 1, IBM Surges, in ‘Bucking Bronco’ High Performance Server Market

September 27, 2018

Riding healthy U.S. and global economies, strong demand for AI-capable hardware and other tailwind trends, the high performance computing server market jumped 28 percent in the second quarter 2018 to $3.7 billion, up from $2.9 billion for the same period last year, according to industry analyst firm Hyperion Research. Read more…

By Doug Black

Leading Solution Providers

SC 18 Virtual Booth Video Tour

Advania @ SC18 AMD @ SC18
ASRock Rack @ SC18
DDN Storage @ SC18
HPE @ SC18
IBM @ SC18
Lenovo @ SC18 Mellanox Technologies @ SC18
NVIDIA @ SC18
One Stop Systems @ SC18
Oracle @ SC18 Panasas @ SC18
Supermicro @ SC18 SUSE @ SC18 TYAN @ SC18
Verne Global @ SC18

HPC Reflections and (Mostly Hopeful) Predictions

December 19, 2018

So much ‘spaghetti’ gets tossed on walls by the technology community (vendors and researchers) to see what sticks that it is often difficult to peer through Read more…

By John Russell

Intel Confirms 48-Core Cascade Lake-AP for 2019

November 4, 2018

As part of the run-up to SC18, taking place in Dallas next week (Nov. 11-16), Intel is doling out info on its next-gen Cascade Lake family of Xeon processors, specifically the “Advanced Processor” version (Cascade Lake-AP), architected for high-performance computing, artificial intelligence and infrastructure-as-a-service workloads. Read more…

By Tiffany Trader

Germany Celebrates Launch of Two Fastest Supercomputers

September 26, 2018

The new high-performance computer SuperMUC-NG at the Leibniz Supercomputing Center (LRZ) in Garching is the fastest computer in Germany and one of the fastest i Read more…

By Tiffany Trader

Microsoft to Buy Mellanox?

December 20, 2018

Networking equipment powerhouse Mellanox could be an acquisition target by Microsoft, according to a published report in an Israeli financial publication. Microsoft has reportedly gone so far as to engage Goldman Sachs to handle negotiations with Mellanox. Read more…

By Doug Black

Houston to Field Massive, ‘Geophysically Configured’ Cloud Supercomputer

October 11, 2018

Based on some news stories out today, one might get the impression that the next system to crack number one on the Top500 would be an industrial oil and gas mon Read more…

By Tiffany Trader

The Deep500 – Researchers Tackle an HPC Benchmark for Deep Learning

January 7, 2019

How do you know if an HPC system, particularly a larger-scale system, is well-suited for deep learning workloads? Today, that’s not an easy question to answer Read more…

By John Russell

Summit Supercomputer is Already Making its Mark on Science

September 20, 2018

Summit, now the fastest supercomputer in the world, is quickly making its mark in science – five of the six finalists just announced for the prestigious 2018 Read more…

By John Russell

IBM Quantum Update: Q System One Launch, New Collaborators, and QC Center Plans

January 10, 2019

IBM made three significant quantum computing announcements at CES this week. One was introduction of IBM Q System One; it’s really the integration of IBM’s Read more…

By John Russell

  • arrow
  • Click Here for More Headlines
  • arrow
Do NOT follow this link or you will be banned from the site!
Share This