Accelerating discoveries at DIII-D with the Integrated Research Infrastructure

• DOI: 10.3389/fphy.2024.1524041
• Publication Date: 2025-01-17T05:10:50Z
• Authors: T. Bechtel Amara; S. P. Smith; Z. A. Xing; S. S. Denk; A. Deshpande; A. O. Nelson; C. Simpson; E. W. DeShazer; T. F. Neiser; O. Antepara; C. M. Clark; J. Lestz; J. Colmenares; N. Tyler; P. Ding; M. Kostuk; E. D. Dart; R. Nazikian; T. Osborne; S. Williams; T. Uram; D. Schissel
• Keywords: DIII-D

DIII-D research is being accelerated by leveraging high performance computing (HPC) and data resources available through the National Energy Research Scientific Computing Center (NERSC) Superfacility initiative. As part of this initiative, a high-resolution, fully automated, whole discharge kinetic equilibrium reconstruction workflow was developed that runs at NERSC for most shots in under 20 min. This has eliminated long-standing barrier opened door to more sophisticated analyses, including plasma transport stability. These capabilities would benefit from automated executed within larger Department Advanced program’s Integrated Infrastructure (IRI) framework. The goal IRI empower researchers meld DOE’s world-class tools, infrastructure, user facilities seamlessly securely novel ways radically accelerate discovery innovation. For transport, we are looking producing flux matched profiles also using particle tracing predict fast ion heat deposition neutral beam injection before shot takes place. Our starting point evaluating stability focuses on pedestal limits must be navigated achieve better confinement. information meant help operators run effective experiments, so it needs rapidly inside control room. So far been achieved ensuring with existing but as results produced new visualization tools developed. In addition, all high-quality have generated collected into databases can unlock even deeper insights. already leveraged model code validation studies well developing AI/ML surrogates. workflows project intended serve prototypes replicated other experiments provide timely essential ITER, next stage fusion power plants.