petsc-3.9.4 2018-09-11
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DMAdaptorAdapt

 Creates a new DM that is adapted to the problem

Synopsis

#include "petscdmadaptor.h" 
PetscErrorCode DMAdaptorAdapt(DMAdaptor adaptor, Vec x, DMAdaptationStrategy strategy, DM *adm, Vec *ax)
Not collective

Input Parameter

adaptor - The DMAdaptor object
x - The global approximate solution
strategy - The adaptation strategy

Output Parameters

adm - The adapted DM
ax - The adapted solution

Options database keys

-snes_adapt <strategy> : initial, sequential, multigrid -. -adapt_gradient_view : View the Clement interpolant of the solution gradient
-adapt_hessian_view : View the Clement interpolant of the solution Hessian -. -adapt_metric_view : View the metric tensor for adaptive mesh refinement

Note: The available adaptation strategies are

1) Adapt the intial mesh until a quality metric, e,g, a priori error bound, is satisfied

2) Solve the problem on a series of adapted meshes until a quality metric, e.g. a posteriori error bound, is satisfied

3) Solve the problem on a hierarchy of adapted meshes generated to satisfy a quality metric using multigrid

Keywords

DMAdaptor, convergence

See Also

DMAdaptorSetSolver(), DMAdaptorCreate(), DMAdaptorAdapt()

Level

intermediate

Location

src/snes/utils/dmadapt.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages