Accelerating DIII-D Analyses with the Integrated Research Infrastructure

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 the NERSC for most DIII-D shots in under 20 minutes (compared to multiple hours for lower resolution lower convergence previously). This rapid analysis has eliminated a long-standing research barrier and opened the door to more sophisticated analyses that can inform control room decisions: pedestal sensitivity calculations based on the automated equilibria can be completed in 8 minutes per time slice, and show the expected start of a stability channel for a super H-mode condition; a microturbulence stability analysis is able to identify the types of instabilities, compare the TGLF predicted fluxes to the QLGYRO predictions, and predict temperature and density profiles in under 5 minutes for all timeslices.