ADIOS: Providing A Framework for Scientific Data on Exascale Systems

May 30, 2018

Editor’s Note: Hardware development associated with the U.S. Exascale Computing Initiative receives the lion’s share of attention but software is at least as important. Presented here is an interview with the team working on Adaptable I/O System (ADIOS) effort as part of the Exascale Computing Project (ECP) overseeing software development and posted today on the ECP site. ADIOS tackles critical data management challenges.

The Adaptable I/O System (ADIOS) project in the ECP supports exascale applications by addressing their data management and in situ analysis needs. Led by Scott Klasky of Oak Ridge National Laboratory, ADIOS is optimizing I/O on exascale architectures and making itself easily maintainable, sustainable, and extensible, while ensuring its performance and scalability. Klasky and some of the ADIOS team members joined ECP Communications on February 6 at the ECP 2nd Annual Meeting in Knoxville, Tennessee, for a podcast episode discussion. This is an edited transcript.

What is the high-level description of your project? 

Think of ADIOS as a framework to be able to put computation in the proper place at the proper time in a data-rich environment. It provides a novel way of thinking about I/O and extreme-scale data management. And essentially it allows scientists to describe their data and talk about how they would like to use it. They don’t have to worry about different things like file formats and storage technology, so really think about it as a very simple way to get extreme-performance I/O.

You’re working with over a dozen different ECP technologies with the Fusion Whole Device Modeling [WDM] Application. Could you please clarify and tell us more about this, how this could relate to other technologies and applications?

ECP’s a very exciting project because what we’re doing is we’re talking about how we bring all these different pieces of technology together. And it’s a very important part of ECP because there’s never one single solution to everything. So one of the things that we learned in so many years of doing science, for myself, being at first a general relativist to then going to being a computer scientist, we learned that for applications—I just want to provide an easy way to this technology. I want to do my science. I don’t want to be bothered. Basically, can we actually do something simple? I/O should be simple. I want to just open. I want to write. I want to read.

For the WDM project, what we wanted to be able to do is take two codes developed by two separate teams and basically not change much of the code. Basically, you just read their file, and then make it work. Physicists can work easily with files—read and write. And then it says, well, can we make that run in situ, in memory. Don’t change your code, now it runs. Then these codes produce a lot of data. There’s ECP technology to reduce. We work with projects such as EZ, which has an SZ compression mechanism. We work with ZFP. We have another technology, MGARD, that comes out from the CODAR [Co-Design Center for Online Data Analysis and Reduction] co-design project, so think about now, when they’re reading, when they’re writing, they don’t care. They just specify reduction, then different variables are reduced. Now they want to visualize. Don’t change your code, just run a visualization service. Everything occurs in memory. Get performance turned on. Get things from TAU. So now all of a sudden, we get this.

Using technology such as DataSpaces, such as EVPath, they can just have these technologies, but for them, they’re just looking like they’re opening, reading, writing a file. And now all this real-time monitoring of the codes, the coupling, they can do their physics without being burdened by this, and they can do this in a reliable fashion. And the point is we’ve learned a lot of things about this along the way, and what we’re finding is that, yes, we have to make things more resilient; yes, we have to make things work better. But the point along the way is that they just want an easy way in, and then they can use all these separate technologies, and they can have a big win by doing this.

ADIOS project team at the ECP 2nd Annual Meeting, Knoxville, Tennessee, February 2018. From left, John Wu, Lawrence Berkeley National Laboratory; Scott Klasky, Oak Ridge National Laboratory (ORNL); Greg Eisenhauer, Georgia Tech; Norbert Podhorszki, ORNL; Qing Liu, New Jersey Institute of Technology; Chuck Atkins, Kitware; and Ruonan Wang, ORNL. Not pictured: Matthew Wolf, ORNL; and Manish Parashar, Rutgers University.

Are there certain areas of this project that you think would be especially good to elucidate, to have further insight about so that people just get a better understanding of what ADIOS is all about?

Absolutely, and what I would like to do is call on one of my colleagues, Norbert Podhorszki, who’s an expert in this area because the important thing with ECP is this is a team. It’s a team that’s built with people around the world. Norbert can now elucidate on this.

Podhorszki: Yes, thank you, Scott. So if I want to summarize in two sentences what’s all about that Scott described about these working together with so many projects is that ADIOS allows the scientist to think about the data and how they can extract the science, the knowledge from it and in an integrated way so that they are not distracted with the details of the technology. What I mean is that they can describe the data and the intent—their intent with the data in some high level. And then ADIOS is the framework that brings together all the mechanisms and the services to execute that intent in an efficient manner in an automated way.

Why is this area of research important to the overall efforts to build a capable exascale ecosystem, Scott?

That’s an excellent question, I’m going to have my good friend and colleague, Greg Eisenhauer from Georgia Tech, answer that.

Eisenhauer: I think to answer that, effectively managing large volumes of data is a key challenge that can limit the science impact of exascale. ADIOS fundamentally addresses this challenge in several ways. It is designed as a service-oriented architecture that can easily and effectively be leveraged by applications. It also enables the use of self-describing data using different file formats which are hidden from the user but is optimized depending on the patterns of the code and the data access.

A particularly key aspect of ADIOS is it allows a separation of intent from mechanisms. We want users to describe what they want to do, and ADIOS ensures that it’s efficiently implemented under the sheets. In this way, ADIOS provides an easy way for scientists to leverage state-of-the-art technologies and solutions without compromising the integrity and the stability of their code because they don’t have to change it. For example, in ADIOS, scientists only have to think about reading and writing files, and they can seamlessly leverage this code in situations that involve synchronous and asynchronous in situ coupling, data reduction, indexing, different file formats, all sorts of different technologies.

ADIOS has been around for a long time, for many years. What’s the significance of ECP to ADIOS?

 Well, again, another excellent question. I’ll say that efficient and effective data management is critical at all scales. All science is about data, and some of the challenges really become more pronounced at the exascale. So it’s really tricky to answer about some of this because we’re very passionate about this, and our view is that we’ve done a lot of research and development, but if there’s no funding in research and development, of course we can’t do this. So we do need a mechanism like anyone else, but as a scientist, I’ll say we have a passion, so we’re going to do this, but exascale really gives us this whole thing about community. And what I’ll say is that we’ve worked with dozens of students all over the world. I’ve traveled around the world talking about ADIOS, getting people involved from all these different countries, getting this passion of what we have to data, saying that we have to make it because data is the important commodity for computing. We can’t do science without it. So without ECP funding, a lot of this would have been more difficult in so many different aspects.

I’ll say one of the most important things for us is taking a lot of the research that we’ve done, that we have software we have running, but we had to make it more stable. So we have Kitware involved, where what they’re doing is using their expertise that they’ve done in their company for things like VTK and applying that to ADIOS, making it so that we have a much more sustainable infrastructure, working with brilliant researchers at, say, Rutgers that we have that can really think about, again, their research artifacts and making that hardened. So I think ECP is making it so that a lot of things that they kind of sort of work, they work normally, we can make those hardened. And other things which work really well we can make work for the newer types of technology that maybe we wouldn’t be able to do as well if we didn’t have the funding to do this.

Why was this research area selected for exascale?

You know, I’m really biased here. Science, as I said, is all about the data. If you can’t efficiently process, move, run, given all the different types of complexities that are being thrown at users in exascale, then there’s no science. Without this form of research, I don’t think there would be any science coming out. We have to really provide a capable software ecosystem to be able to handle extreme-scale data on these large-scale exascale platforms.

You are obviously passionate and your team is obviously passionate about this work. What are your accomplishments at this point that you’d really like to play up for us, really highlight as things that you’re particularly proud of?

That’s a really good question. If you remember, one of the questions that you asked me about the code coupling, we’re really proud of this. And the reason why we’re proud of this is because there were probably about 35 different scientists who’ve contributed different aspects to make it so that the physicists can actually get their science done. Those guys, the physicists, didn’t have to care about each individual technology. We’ve got that. We’re working on a science article on that for Science magazine. My good friend, C. S. Chang, is actually leading that along with the leader of the project, Amitava Bhattacharjee.

And again, it’s really motivating. I talk to other applications here. For instance, Mark Taylor leads the ECP climate community project, and when we can get them more performance, they can write out more data, they can process the data quickly, we can provide more hooks into more ECP software, so then better science can be enabled. So when we think about that, we say it’s really good. And then when we think about what is our task? We’re making software, software has bugs, so now we have to work with, again, really good software engineers like Chuck Atkins at Kitware, who can really make sure that we can make this stable so that if any one of the software technologies crashes, their physics runs can still happen. We can then have other aspects of where we can just have that crash, bring that back up. One of our postdocs, Jason Wang, has a new type of staging technology so that, again, we can bring back these sorts of services, even if they crash. That’s going to be done in many of our technologies along the way: resiliency—but making sure that the science is enabled without making the applications overburdened by the technologies.

You’ve already mentioned this some, talking about the benefits of working with other experts. Can you speak more to that, your working relationships, the ones that have resulted from your ECP collaboration?

I’ll be brief about this and say we’re leveraging a lot of wonderful research that was enabled by ASCR [the US Department of Energy’s Advanced Scientific Computing Research program in the Office of Science], and program managers such as Lucy Nowell, and other program managers such as Randall Laviolette and Ceren Susut. Now we are bringing all this research together and making this a sustainable infrastructure under ECP. We aim at building long-lasting relationships with other applications and other software technologies in ECP collaborations.

What’s next for the ADIOS project?

Everything is about performance, performance, performance. It’s ECP. So for us, performance, but reliability along the way. So just to say we are working to have more applications that can then stress other features inside of our software, making it so that we can build a community and a software ecosystem so that applications can have a very easy time with all the new challenges from exascale and beyond.

Any final comments before we wrap up the discussion today?

Yes. I’d like to thank ECP and the entire program team, along with all the facilities that we run on. And I’d like to thank everyone listening, and including you, Scott, for spending time with me today.

Link to ECP article: https://www.exascaleproject.org/adios-providing-a-framework-for-scientific-data-on-exascale-systems/

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!

Jack Dongarra on SC21, the Top500 and His Retirement Plans

November 29, 2021

HPCwire's Managing Editor sits down with Jack Dongarra, Top500 co-founder and Distinguished Professor at the University of Tennessee, during SC21 in St. Louis to discuss the 2021 Top500 list, the outlook for global exascale computing, and what exactly is going on in that Viking helmet photo. Read more…

SC21: Larry Smarr on The Rise of Supernetwork Data Intensive Computing

November 26, 2021

Larry Smarr, founding director of Calit2 (now Distinguished Professor Emeritus at the University of California San Diego) and the first director of NCSA, is one of the seminal figures in the U.S. supercomputing community. What began as a personal drive, shared by others, to spur the creation of supercomputers in the U.S. for scientific use, later expanded into a... Read more…

Three Chinese Exascale Systems Detailed at SC21: Two Operational and One Delayed

November 24, 2021

Details about two previously rumored Chinese exascale systems came to light during last week’s SC21 proceedings. Asked about these systems during the Top500 media briefing on Monday, Nov. 15, list author and co-founder Jack Dongarra indicated he was aware of some very impressive results, but withheld comment when asked directly if he had... Read more…

SC21’s Student Cluster Competition Winners Announced

November 19, 2021

SC21 may have been the first major supercomputing conference to return to in-person activities, but not everything returned to the live menu: the Student Cluster Competition – held virtually at ISC 2020, SC20 and ISC 2021 – was again held virtually at SC21. Nevertheless, Students@SC Chair Jay Lofstead took the physical stage at SC21 on Thursday to announce the... Read more…

MLPerf Issues HPC 1.0 Benchmark Results Featuring Impressive Systems (Think Fugaku)

November 19, 2021

Earlier this week MLCommons issued results from its latest MLPerf HPC training benchmarking exercise. Unlike other MLPerf benchmarks, which mostly measure the training and inference performance of systems that are availa Read more…

AWS Solution Channel

Royalty-free stock illustration ID: 1616974732

Using the Slurm REST API to integrate with distributed architectures on AWS

The Slurm Workload Manager by SchedMD is a popular HPC scheduler and is supported by AWS ParallelCluster, an elastic HPC cluster management service offered by AWS. Read more…

Gordon Bell Special Prize Goes to World-Shaping COVID Droplet Work

November 18, 2021

For the second (and, hopefully, final) year in a row, SC21 included a second major research award alongside the ACM 2021 Gordon Bell Prize: the Gordon Bell Special Prize for High Performance Computing-Based COVID-19 Research. Last year, the first iteration of this award went to simulations of the SARS-CoV-2 spike protein; this year, the prize went... Read more…

Jack Dongarra on SC21, the Top500 and His Retirement Plans

November 29, 2021

HPCwire's Managing Editor sits down with Jack Dongarra, Top500 co-founder and Distinguished Professor at the University of Tennessee, during SC21 in St. Louis to discuss the 2021 Top500 list, the outlook for global exascale computing, and what exactly is going on in that Viking helmet photo. Read more…

SC21: Larry Smarr on The Rise of Supernetwork Data Intensive Computing

November 26, 2021

Larry Smarr, founding director of Calit2 (now Distinguished Professor Emeritus at the University of California San Diego) and the first director of NCSA, is one of the seminal figures in the U.S. supercomputing community. What began as a personal drive, shared by others, to spur the creation of supercomputers in the U.S. for scientific use, later expanded into a... Read more…

Three Chinese Exascale Systems Detailed at SC21: Two Operational and One Delayed

November 24, 2021

Details about two previously rumored Chinese exascale systems came to light during last week’s SC21 proceedings. Asked about these systems during the Top500 media briefing on Monday, Nov. 15, list author and co-founder Jack Dongarra indicated he was aware of some very impressive results, but withheld comment when asked directly if he had... Read more…

SC21’s Student Cluster Competition Winners Announced

November 19, 2021

SC21 may have been the first major supercomputing conference to return to in-person activities, but not everything returned to the live menu: the Student Cluster Competition – held virtually at ISC 2020, SC20 and ISC 2021 – was again held virtually at SC21. Nevertheless, Students@SC Chair Jay Lofstead took the physical stage at SC21 on Thursday to announce the... Read more…

MLPerf Issues HPC 1.0 Benchmark Results Featuring Impressive Systems (Think Fugaku)

November 19, 2021

Earlier this week MLCommons issued results from its latest MLPerf HPC training benchmarking exercise. Unlike other MLPerf benchmarks, which mostly measure the t Read more…

Gordon Bell Special Prize Goes to World-Shaping COVID Droplet Work

November 18, 2021

For the second (and, hopefully, final) year in a row, SC21 included a second major research award alongside the ACM 2021 Gordon Bell Prize: the Gordon Bell Special Prize for High Performance Computing-Based COVID-19 Research. Last year, the first iteration of this award went to simulations of the SARS-CoV-2 spike protein; this year, the prize went... Read more…

2021 Gordon Bell Prize Goes to Exascale-Powered Quantum Supremacy Challenge

November 18, 2021

Today at the hybrid virtual/in-person SC21 conference, the organizers announced the winners of the 2021 ACM Gordon Bell Prize: a team of Chinese researchers leveraging the new exascale Sunway system to simulate quantum circuits. The Gordon Bell Prize, which comes with an award of $10,000 courtesy of HPC pioneer Gordon Bell, is awarded annually... Read more…

SC21 Keynote: Internet Pioneer Vint Cerf on Shakespeare, Chatbots, and Being Human

November 17, 2021

Unlike the deep technical dives of many SC keynotes, Internet pioneer Vint Cerf steered clear of the trenches and took leisurely stroll through a range of human-machine interactions, touching on ML’s growing capabilities while noting potholes to be avoided if possible. Cerf, of course, is co-designer with Bob Kahn of the TCP/IP protocols and architecture of the internet. He’s heralded... Read more…

IonQ Is First Quantum Startup to Go Public; Will It be First to Deliver Profits?

November 3, 2021

On October 1 of this year, IonQ became the first pure-play quantum computing start-up to go public. At this writing, the stock (NYSE: IONQ) was around $15 and its market capitalization was roughly $2.89 billion. Co-founder and chief scientist Chris Monroe says it was fun to have a few of the company’s roughly 100 employees travel to New York to ring the opening bell of the New York Stock... Read more…

Enter Dojo: Tesla Reveals Design for Modular Supercomputer & D1 Chip

August 20, 2021

Two months ago, Tesla revealed a massive GPU cluster that it said was “roughly the number five supercomputer in the world,” and which was just a precursor to Tesla’s real supercomputing moonshot: the long-rumored, little-detailed Dojo system. Read more…

Esperanto, Silicon in Hand, Champions the Efficiency of Its 1,092-Core RISC-V Chip

August 27, 2021

Esperanto Technologies made waves last December when it announced ET-SoC-1, a new RISC-V-based chip aimed at machine learning that packed nearly 1,100 cores onto a package small enough to fit six times over on a single PCIe card. Now, Esperanto is back, silicon in-hand and taking aim... Read more…

US Closes in on Exascale: Frontier Installation Is Underway

September 29, 2021

At the Advanced Scientific Computing Advisory Committee (ASCAC) meeting, held by Zoom this week (Sept. 29-30), it was revealed that the Frontier supercomputer is currently being installed at Oak Ridge National Laboratory in Oak Ridge, Tenn. The staff at the Oak Ridge Leadership... Read more…

AMD Launches Milan-X CPU with 3D V-Cache and Multichip Instinct MI200 GPU

November 8, 2021

At a virtual event this morning, AMD CEO Lisa Su unveiled the company’s latest and much-anticipated server products: the new Milan-X CPU, which leverages AMD’s new 3D V-Cache technology; and its new Instinct MI200 GPU, which provides up to 220 compute units across two Infinity Fabric-connected dies, delivering an astounding 47.9 peak double-precision teraflops. “We're in a high-performance computing megacycle, driven by the growing need to deploy additional compute performance... Read more…

Intel Reorgs HPC Group, Creates Two ‘Super Compute’ Groups

October 15, 2021

Following on changes made in June that moved Intel’s HPC unit out of the Data Platform Group and into the newly created Accelerated Computing Systems and Graphics (AXG) business unit, led by Raja Koduri, Intel is making further updates to the HPC group and announcing... Read more…

Intel Completes LLVM Adoption; Will End Updates to Classic C/C++ Compilers in Future

August 10, 2021

Intel reported in a blog this week that its adoption of the open source LLVM architecture for Intel’s C/C++ compiler is complete. The transition is part of In Read more…

Killer Instinct: AMD’s Multi-Chip MI200 GPU Readies for a Major Global Debut

October 21, 2021

AMD’s next-generation supercomputer GPU is on its way – and by all appearances, it’s about to make a name for itself. The AMD Radeon Instinct MI200 GPU (a successor to the MI100) will, over the next year, begin to power three massive systems on three continents: the United States’ exascale Frontier system; the European Union’s pre-exascale LUMI system; and Australia’s petascale Setonix system. Read more…

Leading Solution Providers

Contributors

Hot Chips: Here Come the DPUs and IPUs from Arm, Nvidia and Intel

August 25, 2021

The emergence of data processing units (DPU) and infrastructure processing units (IPU) as potentially important pieces in cloud and datacenter architectures was Read more…

D-Wave Embraces Gate-Based Quantum Computing; Charts Path Forward

October 21, 2021

Earlier this month D-Wave Systems, the quantum computing pioneer that has long championed quantum annealing-based quantum computing (and sometimes taken heat fo Read more…

Ahead of ‘Dojo,’ Tesla Reveals Its Massive Precursor Supercomputer

June 22, 2021

In spring 2019, Tesla made cryptic reference to a project called Dojo, a “super-powerful training computer” for video data processing. Then, in summer 2020, Tesla CEO Elon Musk tweeted: “Tesla is developing a [neural network] training computer... Read more…

HPE Wins $2B GreenLake HPC-as-a-Service Deal with NSA

September 1, 2021

In the heated, oft-contentious, government IT space, HPE has won a massive $2 billion contract to provide HPC and AI services to the United States’ National Security Agency (NSA). Following on the heels of the now-canceled $10 billion JEDI contract (reissued as JWCC) and a $10 billion... Read more…

The Latest MLPerf Inference Results: Nvidia GPUs Hold Sway but Here Come CPUs and Intel

September 22, 2021

The latest round of MLPerf inference benchmark (v 1.1) results was released today and Nvidia again dominated, sweeping the top spots in the closed (apples-to-ap Read more…

Quantum Computer Market Headed to $830M in 2024

September 13, 2021

What is one to make of the quantum computing market? Energized (lots of funding) but still chaotic and advancing in unpredictable ways (e.g. competing qubit tec Read more…

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…

2021 Gordon Bell Prize Goes to Exascale-Powered Quantum Supremacy Challenge

November 18, 2021

Today at the hybrid virtual/in-person SC21 conference, the organizers announced the winners of the 2021 ACM Gordon Bell Prize: a team of Chinese researchers leveraging the new exascale Sunway system to simulate quantum circuits. The Gordon Bell Prize, which comes with an award of $10,000 courtesy of HPC pioneer Gordon Bell, is awarded annually... Read more…

  • arrow
  • Click Here for More Headlines
  • arrow
HPCwire