BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20151117T163000Z
DTEND:20151117T170000Z
LOCATION:18AB
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Microstructures forming during ternary eutectic directional solidification processes have significant influence on the macroscopic mechanical properties of metal alloys. =0AFor a realistic simulation, we use the well established thermodynamically consistent phase-field method and improve it with a new grand potential formulation to couple the concentration evolution. =0AThis extension is very compute intensive due to a temperature dependent diffusive concentration. =0AWe significantly extend previous simulations that have used simpler phase-field models or were performed on smaller domain sizes. =0AThe new method has been implemented within the massively parallel HPC framework waLBerla that is designed to exploit current supercomputers efficiently. =0AWe apply various optimization techniques, including buffering techniques, explicit SIMD kernel vectorization, and communication hiding. =0ASimulations utilizing up to 262,144 cores have been run on three different supercomputing architectures and weak scalability results are shown.=0AAdditionally, a hierarchical, mesh-based data reduction strategy is developed to keep the I/O problem manageable at scale.
SUMMARY:Massively Parallel Phase-Field Simulations for Ternary Eutectic Directional Solidification
PRIORITY:3
END:VEVENT
END:VCALENDAR