PETScDMCollection.h¶

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class PETScDMCollection¶

Parent class(es)

PETScObject

This class builds and stores of collection of PETSc DM objects from a hierarchy of FunctionSpaces objects. The DM objects are used to construct multigrid solvers via PETSc.

Warning: This classs is highly experimental and will change

PETScDMCollection(std::vector<std::shared_ptr<const FunctionSpace>> function_spaces)¶: Construct PETScDMCollection from a vector of FunctionSpaces. The vector of FunctionSpaces is stored from coarse to fine.

DM get_dm(int i)¶: Return the ith DM objects. The coarest DM has index 0. Use i=-1 to get the DM for the finest level, i=-2 for the DM for the second finest level, etc.

void check_ref_count() const¶: These are test/debugging functions that will be removed

void reset(int i)¶: Debugging use - to be removed

static std::shared_ptr<PETScMatrix> create_transfer_matrix(const FunctionSpace &coarse_space, const FunctionSpace &fine_space)¶: Create the interpolation matrix from the coarse to the fine space (prolongation matrix)