Tuesday, 15:15 - 15:40 h, Room: MA 041


Lei Wang
Large-scale differential variational inequalities for phase-field modeling

Coauthors: Shrirang Abhyankar, Mihai Anitescu, Jungho Lee, Lois Curfman Mcinnes, Todd Munson, Barry F. Smith


Recent progress on the development of scalable differential variational inequality multigrid-based solvers for the phase-field approach to mesoscale materials modeling is described. We have developed a reduced space method, augmented reduced space method, and semismooth method for variational inequalities in PETSc, leveraging experience by the optimization community in TAO. A geometric multigrid solver in PETSc is used to solve the resulting linear systems. We present strong and weak scaling results for 2D coupled Allen-Cahn/Cahn-Hilliard systems.


Talk 1 of the invited session Tue.3.MA 041
"Differential variational inequalities" [...]
Cluster 3
"Complementarity & variational inequalities" [...]


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