#include <PETScDMCollection.h>

Inheritance diagram for dolfin::PETScDMCollection:

Collaboration diagram for dolfin::PETScDMCollection:

Public Member Functions
	PETScDMCollection (std::vector< std::shared_ptr< const FunctionSpace >> function_spaces)

	~PETScDMCollection ()
	Destructor.

DM	get_dm (int i)

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

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

Public Member Functions inherited from dolfin::PETScObject
	PETScObject ()
	Constructor. Ensures that PETSc has been initialised.

virtual	~PETScObject ()
	Destructor.

Static Public Member Functions
static std::shared_ptr< PETScMatrix >	create_transfer_matrix (const FunctionSpace &coarse_space, const FunctionSpace &fine_space)

Static Public Member Functions inherited from dolfin::PETScObject
static void	petsc_error (int error_code, std::string filename, std::string petsc_function)
	Print error message for PETSc calls that return an error.

Detailed Description

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

Constructor & Destructor Documentation

◆ PETScDMCollection()

PETScDMCollection::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.

Member Function Documentation

◆ create_transfer_matrix()

std::shared_ptr< PETScMatrix > PETScDMCollection::create_transfer_matrix	(	const FunctionSpace &	coarse_space,
		const FunctionSpace &	fine_space
	)

static

Create the interpolation matrix from the coarse to the fine space (prolongation matrix)

◆ get_dm()

DM PETScDMCollection::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.

The documentation for this class was generated from the following files:

/home/fenics/shared/dolfin/dolfin/fem/PETScDMCollection.h
/home/fenics/shared/dolfin/dolfin/fem/PETScDMCollection.cpp