Multiple-GPU Scalability of Phase-Field Simulation for Dendritic Solidification
نویسندگان
چکیده
Mechanical properties of metallic materials like steel depend on the solidification process. In order to study the morphology of the microstructure in the materials, the phase-field model derived from the non-equilibrium statistical physics is applied and the interface dynamics is solved by GPU computing. Since very high performance is required, 3-dimensional simulations have not been carried out so much on conventional supercomputers. By using 60 GPUs installed on TSUBAME 1.2, a performance of 10 TFlops is archived for the dendritic solidification based on the phase-field model.
منابع مشابه
Parallel Implementation for Phase-Field Simulation of Flow Effect on Dendritic Growth with GPU Acceleration
A Sola-phase field model combined Sola algorithm with phase-field model is established. It is difficult to implement real-time simulation as the computational grids increase. Taking pure SCN for example, the solidification microstructure evolution process in the presence of flow has been accelerated on a GPU with CUDA programming. The GPU implementation of the Sola-phase field model is introduc...
متن کاملMultiphase Numerical Modeling of Dendritic Solidification for Jigsaw Puzzle Generation
We explore an opportunity to expand the stylistic variety of handmade and artisanal jigsaw puzzles through the appication of techniques from natural simulation. Typical jigsaw puzzle designs reflect the manufacturing constraints of die-cut, mass-production methods. We generate novel families of puzzle forms by applying a phase field approach to the simulation of dendritic solidification. We ext...
متن کاملPhase-field simulations of solidification in binary and ternary systems using a finite element method
We present adaptive finite element simulations of dendritic and eutectic solidification in binary and ternary alloys. The computations are based on a recently formulated phase-field model that is especially appropriate for modelling non-isothermal solidification in multicomponent multiphase systems. In this approach, a set of governing equations for the phase-field variables, for the concentrat...
متن کاملQuantitative phase-field modeling of nonisothermal solidification in dilute multicomponent alloys with arbitrary diffusivities.
A quantitative phase-field model is developed for simulating microstructural pattern formation in nonisothermal solidification in dilute multicomponent alloys with arbitrary thermal and solutal diffusivities. By performing the matched asymptotic analysis, it is shown that the present model with antitrapping current terms reproduces the free-boundary problem of interest in the thin-interface lim...
متن کاملPhase-Field Simulations of Crystal Growth
This course gives an elementary introduction to the phase-field method and to its applications for the modeling of crystal growth. Two different interpretations of the phase-field variable are given and discussed. It can be seen as a physical order parameter that characterizes a phase transition, or as a smoothed indicator function that tracks domain boundaries. Elementary phase-field models fo...
متن کامل