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DOLFINx
DOLFINx C++ interface
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| ▼Ndolfinx | |
| ▼Ncommon | Miscellaneous classes, functions and types |
| CIndexMap | This class represents the distribution index arrays across processes. An index array is a contiguous collection of N+1 indices [0, 1, . . ., N] that are distributed across M processes. On a given process, the IndexMap stores a portion of the index set using local indices [0, 1, . . . , n], and a map from the local indices to a unique global index |
| CTimeLogger | Timer logging |
| CTimeLogManager | Logger initialisation |
| CTimer | A timer can be used for timing tasks. The basic usage is |
| CUniqueIdGenerator | This is a singleton class that return IDs that are unique in the lifetime of a program |
| ▼Nfem | Finite element method functionality |
| CDirichletBC | Interface for setting (strong) Dirichlet boundary conditions |
| CForm | Class for variational forms |
| CConstant | A constant value which can be attached to a Form. Constants may be scalar (rank 0), vector (rank 1), or tensor valued |
| CCoordinateElement | This class manages coordinate mappings for isoparametric cells |
| CDofMap | Degree-of-freedom map |
| CElementDofLayout | The class represents the degree-of-freedom (dofs) for an element. Dofs are associated with a mesh entity. This class also handles sub-space dofs, which are views into the parent dofs |
| CExpression | Represents a mathematical expression evaluated at a pre-defined set of points on the reference cell. This class closely follows the concept of a UFC Expression |
| CFiniteElement | Finite Element, containing the dof layout on a reference element, and various methods for evaluating and transforming the basis |
| CFunction | This class represents a function \( u_h \) in a finite element function space \( V_h \), given by |
| CFunctionSpace | This class represents a finite element function space defined by a mesh, a finite element, and a local-to-global map of the degrees of freedom (dofmap) |
| ▼Nfunction | |
| CFunction | |
| ▼Ngeometry | Geometry data structures and algorithms |
| CBoundingBoxTree | Axis-Aligned bounding box binary tree. It is used to find entities in a collection (often a mesh::Mesh) |
| ▼Ngraph | Graph data structures and algorithms |
| CAdjacencyList | This class provides a static adjacency list data structure. It is commonly used to store directed graphs. For each node in the contiguous list of nodes [0, 1, 2, ..., n) it stores the connected nodes. The representation is strictly local, i.e. it is not parallel aware |
| ▼Nio | Support for file IO |
| CHDF5Interface | This class provides an interface to some HDF5 functionality |
| CVTKFile | Output of meshes and functions in VTK/ParaView format. Isoparametric meshes of arbitrary degree are supported. For finite element functions, cell-based (DG0) and Lagrange (point-based) functions can be saved. For vertex-based functions the output must be isoparametic, i.e. the geometry and the finite element functions must be defined using the same basis |
| CXDMFFile | Read and write mesh::Mesh, fem::Function and other objects in XDMF |
| ▼Nla | Linear algebra interface |
| CPETScKrylovSolver | This class implements Krylov methods for linear systems of the form Ax = b. It is a wrapper for the Krylov solvers of PETSc |
| CPETScMatrix | It is a simple wrapper for a PETSc matrix pointer (Mat). Its main purpose is to assist memory management of PETSc Mat objects |
| CPETScOperator | This class is a base class for matrices that can be used in PETScKrylovSolver |
| CPETScOptions | These class provides static functions that permit users to set and retrieve PETSc options via the PETSc option/parameter system. The option must not be prefixed by '-', e.g |
| CPETScVector | A simple wrapper for a PETSc vector pointer (Vec). Its main purpose is to assist with memory/lifetime management of PETSc Vec objects |
| CSparsityPattern | This class provides a sparsity pattern data structure that can be used to initialize sparse matrices |
| CVector | Distributed vector |
| CVectorSpaceBasis | This class defines a basis for vector spaces, typically used for expressing nullspaces of singular operators and 'near nullspaces' used in smoothed aggregation algebraic multigrid |
| ▼Nmesh | Mesh data structures and algorithms on meshes |
| CMeshTags | A MeshTags are used to associate mesh entities with values. The entity index (local to process) identifies the entity. MeshTags is a sparse data storage class; it allows tags to be associated with an arbitrary subset of mesh entities. An entity can have only one associated tag |
| CGeometry | Geometry stores the geometry imposed on a mesh |
| CMesh | A Mesh consists of a set of connected and numbered mesh topological entities, and geometry data |
| CTopology | Topology stores the topology of a mesh, consisting of mesh entities and connectivity (incidence relations for the mesh entities) |
| ▼NMPI | MPI support functionality |
| CComm | A duplicate MPI communicator and manage lifetime of the communicator |
| Cdependent_false | |
| ▼Nnls | Nonlinear solvers |
| CNewtonSolver | This class defines a Newton solver for nonlinear systems of equations of the form \(F(x) = 0\) |
| Carray2d | This class provides a dynamic 2-dimensional row-wise array data structure |
| CTable | This class provides storage and pretty-printing for tables. Example usage: |
1.9.1