Functor class generating a numbering optimized for PETSc. More...

#include <SF_numbering.h>

Inheritance diagram for SF::petsc_numbering< T, S >:

Collaboration diagram for SF::petsc_numbering< T, S >:

Public Member Functions
	petsc_numbering (const overlapping_layout< T > &pl)

void	operator() (meshdata< T, S > &mesh)
	Generate a numbering as necessary for good PETSc parallel performance. More...

Detailed Description

template<class T, class S>
class SF::petsc_numbering< T, S >

Functor class generating a numbering optimized for PETSc.

Template Parameters

T	Integer type.
S	Floating point type.

Definition at line 230 of file SF_numbering.h.

Constructor & Destructor Documentation

◆ petsc_numbering()

template<class T, class S>

SF::petsc_numbering< T, S >::petsc_numbering ( const overlapping_layout< T > & pl )

inline

Definition at line 235 of file SF_numbering.h.

Member Function Documentation

◆ operator()()

template<class T, class S>

void SF::petsc_numbering< T, S >::operator() ( meshdata< T, S > & mesh )

inlinevirtual

Generate a numbering as necessary for good PETSc parallel performance.

PETSc implicitly the following parallel layout of unknowns:

Rank	unknowns intervals
0	[0,1,...,N0-1]
1	[N0,N0+1,...,N1-1]
...	...

For good parallel performance, the node indices used in the domain decomposition should match as closely as possible to the described layout. This makes a renumbering necessary.

Parameters

[in,out] mesh The mesh.

Postcondition: A PETSc numbering has been added to the mesh.

Implements SF::numbering< T, S >.

Definition at line 258 of file SF_numbering.h.

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

fem/slimfem/src/SF_numbering.h