The Texas Advanced Computing Center (TACC) announced the set of 21 codes and ‘grand challenge'-class science problems that will receive funding through the "Characteristic Science Applications" program.
The applications, identified by the community of large-scale scientific computing users, reflect the broad range of science domains and computational approaches— from language, to method, to workflow — that researchers will run on future supercomputers.
Among the applications are software for large international experiments like the IceCube Neutrino Observatory; widely-used codes from the earthquake and astrophysics communities; and custom codes that explore new approaches to machine learning and black hole modeling. [See full list of funded applications on the TACC website.]
The Characteristic Science Applications will be part of the planning and early science program for the Leadership Class Computing Facility (LCCF) at TACC. Funding from the program comes from the National Science Foundation (NSF).
The program received 140 submissions, covering all areas of science, and involving 167 institutions in 38 states. These were reviewed by TACC's HPC experts and an independent NSF panel and chosen based on the scientific significance of the problem they aim to solve; whether it adds to the representation of scientific codes that the LCCF facility will likely serve; and the current ability to solve the problem.
"Extensive engagement with the diverse research community is critical to the design of LCCF," said Manish Parashar, director of NSF's Office of Advanced Cyberinfrastructure. "NSF appreciates the overwhelming response from the community to the CSA program. This will ensure that the future facility will have the broadest impact and sustain our nation's leadership in science and engineering."
If awarded, the LCCF will deploy a high performance computing system in the 2026 timeframe with 10 times the capability of TACC's Frontera supercomputer — currently the 13th fastest in the world and the most powerful at any university.
Part of the ten-fold improvement will come through improvements in code performance. This, TACC hopes, will be accomplished through close collaborations between academic software development teams and HPC performance experts at TACC. The close collaborations will also help TACC build a system uniquely suited to the needs of scientists and engineers.
"The ultimate design goal of the LCCF is to increase the pace of scientific exploration," Stanzione said. "The CSA projects serve as representatives for the set of problems the LCCF will address over its operational life. In that way, they are also a design driver for the facility, guiding the technology and service choices that comprise the LCCF."
The projects will compute on Frontera, Longhorn (TACC's large GPU-based system), and numerous testbeds of alternative or experimental hardware that are, or will be, available to the research teams in the coming years.
TACC expects a wealth of lessons learned and practical experience will stem from the program. These will enable the development of targeted training, supporting the goal of getting researchers ready to run effectively on LCCF on the first day of operations.
The 21 teams selected will each be awarded $150,000 for the first year of study and design, with a commitment from the science team to collaborate with the LCCF project to improve the code and prepare it for the candidate architecture. In total, NSF awarded TACC $7 million over two years to support the CSA program.
"Far too often, technologies and systems fail to deliver their full potential because the end users were insufficiently engaged," said John West, TACC deputy director and co-principal investigator on the award. "Deep engagement on a future system requires significant investment of time and energy on the part of the scientists. We have constructed the CSA program to create both incentives and ‘skin in the game' for the selected applications teams. Each will receive multi-year funding to make sure their proposed problem is relevant and ready to run when the LCCF becomes a reality."
Teams making sufficient progress may be renewed for a second year of funding at the same level during final design. Ten to 15 teams will enter the construction phase of the LCCF project and be funded for approximately 30 months as the Characteristic Science Applications are demonstrated on the LCCF's HPC resources.
One of the research projects selected aims to improve multi-messenger astrophysics efforts at the IceCube Neutrino Observatory.
"IceCube is undergoing an evolution as we incorporate AI into our data processing and analysis schemes," said Benedikt Riedel, IceCube Global Computing Coordinator. "The CSA program will give us hands-on experience with the newest cyberinfrastructure and allow us to determine the best ways to use that cyberinfrastructure in the future."
Another CSA project, led by Emad Tajkhorshid, Director of the NIH Center for Macromolecular Modeling and Bioinformatics at the University of Illinois at Urbana-Champaign, will drive the development of the simulation software, NAMD, for very large molecules, and give his team the opportunity to improve a code used by thousands of researchers and accelerate the pace of discovery in his field.
"We're also very excited to undertake a highly risky project," he said, "namely modeling and doing full simulations of viruses, which would not be possible without this opportunity."
The "Characteristic Science Applications for the Leadership Class Computing Facility" project is supported by the National Science Foundation award #2139536.