Fastest Academic Supercomputer Enters Full Production at TACC, Just in Time for Hurricane Season

By Tiffany Trader

September 3, 2019

Frontera, the NSF supercomputer installed at the Texas Advanced Computing Center (TACC) in June, passed its formal acceptance last week and is now officially launched. The Dell EMC-built supercomputer spans 8,008 Mellanox HDR connected Xeon Platinum 8280 nodes, capable of 23.5 Linpack petaflops, making it the fastest academic supercomputer in the world. Frontera joins more than a dozen other TACC systems, including Stampede2, which is now the second fastest academic system in the U.S.

Ahead of today’s unveiling ceremony, which brought representatives from Intel, IBM, Nvidia, Mellanox, DDN and the National Science Foundation (NSF) to the University of Texas at Austin, HPCwire spoke with TACC Director Dan Stanzione about the science that’s already being enabled on Frontera, as well as other details of the $60-million NSF leadership computing award (announced last year), including two GPU-powered subsystems that are currently undergoing testing in preparation for production-readiness within the next couple of months.

TACC’s Frontera system, featuring 8,008 Dell EMC PowerEdge server nodes

The primary Frontera system is powered by Intel’s highest-bin SP Cascade Lake processors (the Xeon Platinum 8280s), interconnected with HDR-100 links to each node, and full 200 Gbps HDR links between leaf and core switches. Data Direct Networks contributed the main storage system (50+ PB disk, 3PB of flash, 1.5/TB sec of I/O capability). Frontera’s 90 racks leverage direct liquid cooling technology from CoolIT, enabling about twice as many racks in the same footprint as the recently retired Stampede1. Running Linpack (the system entered the June 2019 Top500 list at number five), Frontera’s Xeons never got above 50C so won’t be thermally constrained; unlike Stampede2, which hit temps of up to 85C on its Linpack run, Stanzione shared.

In August, TACC fielded two Frontera subsystems. One is a cluster comprised of 360 Nvidia Quadro RTX 5000 GPUs submerged in liquid coolant filled racks developed by GRC. The liquid cooling specialists–formerly known as Green Revolution Cooling–are also based in Austin and TACC deployed the first GRC prototype outside of the company’s lab back in 2009. The new six tank system (internally, it’s called Maverick) uses Mellanox HDR-100 networking and provides 4 petaflops of peak single-precision performance.

Stanzione revealed that the Quadro RTX nodes were brought in under a new single-precision academic program that Nvidia is launching that provides CUDA licensing support and maybe even some nice discounts for RTX family parts for academic sites (we are tracking down additional details and will report further soon).

TACC’s new Longhorn: an IBM Power9 cluster with 448 Nvidia V100 GPUs

TACC is also deploying an IBM Power9 subsystem with 448 V100 GPUs (in the 4:1 GPU-to-CPU configuration) offering a peak aggregate output of 3.5 double-precision petaflops. The InfiniBand-EDR connected cluster reprises the Longhorn name at TACC (the original Longhorn, a GPU cluster outfitted with Quadro FX 5800 parts, was decommissioned in 2014). Frontera’s two GPU subsystems will target artificial intelligence, machine learning, and molecular dynamics research.

In the coming months, Frontera will also be integrating with cloud providers Amazon, Google, and Microsoft to provide researchers access to a range of emerging computing technologies and long-term storage. “Cloud is not an either/or decision, they don’t really do the same thing,” Stanzione said at the Rice Oil and Gas conference in March, referring to traditional on-prem HPC and cloud. “We are bringing in the cloud to use the things the cloud does well on, publishing data, and access to composable workflows, things like natural language processing. And also to play with the latest gear, FPGAs, Tensor Processors, etc., and see what the users want.”

Since entering early science operations the first week of July, Frontera has supported 39 science projects from across the NSF space and Stanzione expects that number to expand to about 100. As NSF’s leadership-class “tier 1” system, the follow-on to Blue Waters at the National Center for Supercomputing Applications, Frontera’s mission is to provide open science projects with significant system time; some projects are at the scale where they require 5 percent of the machine’s time in a year, for example. Smaller projects will be kept on Stampede2.

Frontera will run for at least five years; 80 percent of cycles are selected through a competitive process, while 20 percent are discretionary. Frontera will support high-impact science in nearly every domain. Early workloads include astrophysics, quantum chemistry, photovoltaic materials research, machine learning – and just this past week hurricane modeling.

TACC has been working with the storm research community for about a decade and has discretionary allocation time for just this kind of emergency, seasonal workload. “They call us when there’s a storm, and usually, we’re able to let them on,” said Stanzione. “Obviously, these forecasts are much less useful two or three days from now. So we just give them a chunk of time, wherever, wherever we have the space.”

As Hurricane Dorian was still gaining strength over the Atlantic last week, TACC provided a discretionary allocation for researchers Clint Dawson (University of Texas at Austin) and Jason Fleming (University of North Carolina), to carry out storm surge forecasting on the hurricane that reached category-5 status on Sunday using both Stampede2 and Frontera.

The researchers were able to get their code up in running on Frontera in about 10 minutes due to how similar Frontera is to Stampede2 with respect to its software stack and architecture — and they achieved twice the speed on the same number of nodes, Stanzione told us. Some of this speedup is attributable to the fact that they had a fairly quiet system to run on, so less contention for I/O and other resources. More generally, Stanzione is seeing a 10-15 percent performance uplift moving from Skylake to Cascade Lake, with up to a 30 percent improvement on codes that aren’t memory bandwidth bound.

The Intel security mitigations (that address side channel attack vulnerabilities, Spectre and Meltdown, et al.), haven’t impacted TACC very significantly, according to Stanzione. With the Skylake-based Stampede2 nodes, at most they saw up to a 10 percent hit on data intensive workloads with a lot of small I/O, but for the majority of floating point bound simulation codes, the performance penalty was around 1-2 percent. With the new hardware mitigations on Cascade Lake, TACC is not able to conduct direct with-and-without comparisons, but given codes are hitting the projected performance targets, Stanzione believes that if there is an impact, it’s minor.

TACC will also be deploying a small fleet of Optane nodes as part of the Frontera project: 16 quad-socket nodes filled with the 256 GB Optane Persistent Memory Modules — that’s six per socket, 24 per node, for an aggregate of more than 98 TB of Optane memory.

TACC’s engineers will be experimenting with the Optane DIMMs in both “I/O mode” and memory mode, using it for in-memory database applications, and to boost fault tolerance for check pointing. “We haven’t decided if we like it better as a fast storage node or a sort of a slow but really large memory node because it’s sort of a hybrid between storage and memory in a lot of ways. So we’ll have a hundred terabytes, 16 of these broad-socket nodes, and we’ll see what users want to do with it,” said Stanzione.

A phase-2 NSF leadership system that is 10x the capacity of Frontera is on the roadmap for 2024 deployment, which will be after the DOE Frontier (ORNL) and El Capitan (LLNL) machines are up and running. “Five year planning is more in the style that DOE usually gets to do,” Stanzione has said. This longer lead time allows TACC and its NSF collaborators to gather data and thoughtfully plan what makes sense for the second half of the 2020s. They’ll have a BOF at SC this year to start getting feedback and will begin working on a conceptual design next year, drawing on the lessons learned from Frontera and its subsystems, and as always listening closely to their end user scientific community, whom Stanzione continuously references throughout our nearly hour-long conversation.

This community-needs focus came up again when we talked about the decision to go with a straight x86 machine (plus smaller GPU subsystems), even though in the U.S. at least extreme-scale architectures have been trending toward fat GPU-node systems. (See five DOE CORAL awards, Perlmutter at NERSC, Big Red 2 at Indiana University, to name a few. There are of course notable exceptions to the fat-node approach, especially internationally, e.g., SuperMUC-NG at LRZ and the upcoming post-K Arm “Fugaku” system at RIKEN. For the record, Stanzione is intrigued by Arm and the Fujitsu post-K chip, specifically.)

“It helps that in the DOE space, most of the codes are C++. They can compel the developers to go the direction they want to go, and they use templating libraries like Cocos and Raja to get performance out of those,” said Stanzione. “But, you know, if I told our community to do that, first of all, right now, none of the codes would work. And, you know, I don’t have two years to get to it, either. Most of those systems [that you mentioned] are around the 2021 timeframe. Assuming they can make the software switch — and they have lots of good reasons to think that they can — their community is just very different.”

In a bit of friendly posturing, Stanzione also said he expects that despite those [big GPU] systems having higher spec’d performance (peak and Linpack) and higher funding levels, there will be a set of codes for which Frontera will outrun systems like Summit and Sierra. “We’ll put our productivity per dollar up against any of them,” said Stanzione, “and I think there’ll be a set of problems, particularly some of the big adaptive mesh, partial differential equations type models, where I bet we can outrun them in just raw speed because those codes just aren’t really friendly to those fat nodes. If you take away the GPUs, then Summit’s essentially a 3,000 node machine of plain-old CPUs and we have a lot more (nodes) than that. So, I think we will find some problems over the next two or three months, where Frontera is the fastest machine in the world.”

Read more about the science Frontera will be enabling at: https://fronteraweb.tacc.utexas.edu/

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!

D-Wave Delivers 5000-qubit System; Targets Quantum Advantage

September 29, 2020

D-Wave today launched its newest and largest quantum annealing computer, a 5000-qubit goliath named Advantage that features 15-way qubit interconnectivity. It also introduced the D-Wave Launch program intended to jump st Read more…

By John Russell

What’s New in Computing vs. COVID-19: AMD, Remdesivir, Fab Spending & More

September 29, 2020

Supercomputing, big data and artificial intelligence are crucial tools in the fight against the coronavirus pandemic. Around the world, researchers, corporations and governments are urgently devoting their computing reso Read more…

By Oliver Peckham

Global QC Market Projected to Grow to More Than $800 million by 2024

September 28, 2020

The Quantum Economic Development Consortium (QED-C) and Hyperion Research are projecting that the global quantum computing (QC) market - worth an estimated $320 million in 2020 - will grow at an anticipated 27% CAGR betw Read more…

By Staff Reports

DoE’s ASCAC Backs AI for Science Program that Emulates the Exascale Initiative

September 28, 2020

Roughly a year after beginning formal efforts to explore an AI for Science initiative the Department of Energy’s Advanced Scientific Computing Advisory Committee last week accepted a subcommittee report calling for a t Read more…

By John Russell

Supercomputer Research Aims to Supercharge COVID-19 Antiviral Remdesivir

September 25, 2020

Remdesivir is one of a handful of therapeutic antiviral drugs that have been proven to improve outcomes for COVID-19 patients, and as such, is a crucial weapon in the fight against the pandemic – especially in the abse Read more…

By Oliver Peckham

AWS Solution Channel

The Water Institute of the Gulf runs compute-heavy storm surge and wave simulations on AWS

The Water Institute of the Gulf (Water Institute) runs its storm surge and wave analysis models on Amazon Web Services (AWS)—a task that sometimes requires large bursts of compute power. Read more…

Intel® HPC + AI Pavilion

Berlin Institute of Health: Putting HPC to Work for the World

Researchers from the Center for Digital Health at the Berlin Institute of Health (BIH) are using science to understand the pathophysiology of COVID-19, which can help to inform the development of targeted treatments. Read more…

NOAA Announces Major Upgrade to Ensemble Forecast Model, Extends Range to 35 Days

September 23, 2020

A bit over a year ago, the United States’ Global Forecast System (GFS) received a major upgrade: a new dynamical core – its first in 40 years – called the finite-volume cubed-sphere, or FV3. Now, the National Oceanic and Atmospheric Administration (NOAA) is bringing the FV3 dynamical core to... Read more…

By Oliver Peckham

D-Wave Delivers 5000-qubit System; Targets Quantum Advantage

September 29, 2020

D-Wave today launched its newest and largest quantum annealing computer, a 5000-qubit goliath named Advantage that features 15-way qubit interconnectivity. It a Read more…

By John Russell

DoE’s ASCAC Backs AI for Science Program that Emulates the Exascale Initiative

September 28, 2020

Roughly a year after beginning formal efforts to explore an AI for Science initiative the Department of Energy’s Advanced Scientific Computing Advisory Commit Read more…

By John Russell

NOAA Announces Major Upgrade to Ensemble Forecast Model, Extends Range to 35 Days

September 23, 2020

A bit over a year ago, the United States’ Global Forecast System (GFS) received a major upgrade: a new dynamical core – its first in 40 years – called the finite-volume cubed-sphere, or FV3. Now, the National Oceanic and Atmospheric Administration (NOAA) is bringing the FV3 dynamical core to... Read more…

By Oliver Peckham

Arm Targets HPC with New Neoverse Platforms

September 22, 2020

UK-based semiconductor design company Arm today teased details of its Neoverse roadmap, introducing V1 (codenamed Zeus) and N2 (codenamed Perseus), Arm’s second generation N-series platform. The chip IP vendor said the new platforms will deliver 50 percent and 40 percent more... Read more…

By Tiffany Trader

Oracle Cloud Deepens HPC Embrace with Launch of A100 Instances, Plans for Arm, More 

September 22, 2020

Oracle Cloud Infrastructure (OCI) continued its steady ramp-up of HPC capabilities today with a flurry of announcements. Topping the list is general availabilit Read more…

By John Russell

European Commission Declares €8 Billion Investment in Supercomputing

September 18, 2020

Just under two years ago, the European Commission formalized the EuroHPC Joint Undertaking (JU): a concerted HPC effort (comprising 32 participating states at c Read more…

By Oliver Peckham

Google Hires Longtime Intel Exec Bill Magro to Lead HPC Strategy

September 18, 2020

In a sign of the times, another prominent HPCer has made a move to a hyperscaler. Longtime Intel executive Bill Magro joined Google as chief technologist for hi Read more…

By Tiffany Trader

Future of Fintech on Display at HPC + AI Wall Street

September 17, 2020

Those who tuned in for Tuesday's HPC + AI Wall Street event got a peak at the future of fintech and lively discussion of topics like blockchain, AI for risk man Read more…

By Alex Woodie, Tiffany Trader and Todd R. Weiss

Supercomputer-Powered Research Uncovers Signs of ‘Bradykinin Storm’ That May Explain COVID-19 Symptoms

July 28, 2020

Doctors and medical researchers have struggled to pinpoint – let alone explain – the deluge of symptoms induced by COVID-19 infections in patients, and what Read more…

By Oliver Peckham

Nvidia Said to Be Close on Arm Deal

August 3, 2020

GPU leader Nvidia Corp. is in talks to buy U.K. chip designer Arm from parent company Softbank, according to several reports over the weekend. If consummated Read more…

By George Leopold

10nm, 7nm, 5nm…. Should the Chip Nanometer Metric Be Replaced?

June 1, 2020

The biggest cool factor in server chips is the nanometer. AMD beating Intel to a CPU built on a 7nm process node* – with 5nm and 3nm on the way – has been i Read more…

By Doug Black

Intel’s 7nm Slip Raises Questions About Ponte Vecchio GPU, Aurora Supercomputer

July 30, 2020

During its second-quarter earnings call, Intel announced a one-year delay of its 7nm process technology, which it says it will create an approximate six-month shift for its CPU product timing relative to prior expectations. The primary issue is a defect mode in the 7nm process that resulted in yield degradation... Read more…

By Tiffany Trader

Google Hires Longtime Intel Exec Bill Magro to Lead HPC Strategy

September 18, 2020

In a sign of the times, another prominent HPCer has made a move to a hyperscaler. Longtime Intel executive Bill Magro joined Google as chief technologist for hi Read more…

By Tiffany Trader

HPE Keeps Cray Brand Promise, Reveals HPE Cray Supercomputing Line

August 4, 2020

The HPC community, ever-affectionate toward Cray and its eponymous founder, can breathe a (virtual) sigh of relief. The Cray brand will live on, encompassing th Read more…

By Tiffany Trader

Neocortex Will Be First-of-Its-Kind 800,000-Core AI Supercomputer

June 9, 2020

Pittsburgh Supercomputing Center (PSC - a joint research organization of Carnegie Mellon University and the University of Pittsburgh) has won a $5 million award Read more…

By Tiffany Trader

European Commission Declares €8 Billion Investment in Supercomputing

September 18, 2020

Just under two years ago, the European Commission formalized the EuroHPC Joint Undertaking (JU): a concerted HPC effort (comprising 32 participating states at c Read more…

By Oliver Peckham

Leading Solution Providers

Contributors

Oracle Cloud Infrastructure Powers Fugaku’s Storage, Scores IO500 Win

August 28, 2020

In June, RIKEN shook the supercomputing world with its Arm-based, Fujitsu-built juggernaut: Fugaku. The system, which weighs in at 415.5 Linpack petaflops, topp Read more…

By Oliver Peckham

Google Cloud Debuts 16-GPU Ampere A100 Instances

July 7, 2020

On the heels of the Nvidia’s Ampere A100 GPU launch in May, Google Cloud is announcing alpha availability of the A100 “Accelerator Optimized” VM A2 instance family on Google Compute Engine. The instances are powered by the HGX A100 16-GPU platform, which combines two HGX A100 8-GPU baseboards using... Read more…

By Tiffany Trader

DOD Orders Two AI-Focused Supercomputers from Liqid

August 24, 2020

The U.S. Department of Defense is making a big investment in data analytics and AI computing with the procurement of two HPC systems that will provide the High Read more…

By Tiffany Trader

Supercomputer Modeling Tests How COVID-19 Spreads in Grocery Stores

April 8, 2020

In the COVID-19 era, many people are treating simple activities like getting gas or groceries with caution as they try to heed social distancing mandates and protect their own health. Still, significant uncertainty surrounds the relative risk of different activities, and conflicting information is prevalent. A team of Finnish researchers set out to address some of these uncertainties by... Read more…

By Oliver Peckham

Microsoft Azure Adds A100 GPU Instances for ‘Supercomputer-Class AI’ in the Cloud

August 19, 2020

Microsoft Azure continues to infuse its cloud platform with HPC- and AI-directed technologies. Today the cloud services purveyor announced a new virtual machine Read more…

By Tiffany Trader

Japan’s Fugaku Tops Global Supercomputing Rankings

June 22, 2020

A new Top500 champ was unveiled today. Supercomputer Fugaku, the pride of Japan and the namesake of Mount Fuji, vaulted to the top of the 55th edition of the To Read more…

By Tiffany Trader

Joliot-Curie Supercomputer Used to Build First Full, High-Fidelity Aircraft Engine Simulation

July 14, 2020

When industrial designers plan the design of a new element of a vehicle’s propulsion or exterior, they typically use fluid dynamics to optimize airflow and in Read more…

By Oliver Peckham

Intel Speeds NAMD by 1.8x: Saves Xeon Processor Users Millions of Compute Hours

August 12, 2020

Potentially saving datacenters millions of CPU node hours, Intel and the University of Illinois at Urbana–Champaign (UIUC) have collaborated to develop AVX-512 optimizations for the NAMD scalable molecular dynamics code. These optimizations will be incorporated into release 2.15 with patches available for earlier versions. Read more…

By Rob Farber

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