Assembler.h¶
Note
The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.
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class
Assembler
¶ Parent class(es)
This class provides automated assembly of linear systems, or more generally, assembly of a sparse tensor from a given variational form.
Subdomains for cells and facets may be specified by assigning subdomain indicators specified by
MeshFunction
to theForm
being assembled:form.dx = cell_domains form.ds = exterior_facet_domains form.dS = interior_facet_domains
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Assembler
()¶ Constructor
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void
assemble
(GenericTensor &A, const Form &a)¶ Assemble tensor from given form
- Arguments
- A (
GenericTensor
) - The tensor to assemble.
- a (
Form
) - The form to assemble the tensor from.
- A (
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void
assemble_cells
(GenericTensor &A, const Form &a, UFC &ufc, const MeshFunction<std::size_t> *domains, std::vector<double> *values)¶ Assemble tensor from given form over cells. This function is provided for users who wish to build a customized assembler.
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void
assemble_exterior_facets
(GenericTensor &A, const Form &a, UFC &ufc, const MeshFunction<std::size_t> *domains, std::vector<double> *values)¶ Assemble tensor from given form over exterior facets. This function is provided for users who wish to build a customized assembler.
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void
assemble_interior_facets
(GenericTensor &A, const Form &a, UFC &ufc, const MeshFunction<std::size_t> *domains, std::vector<double> *values)¶ Assemble tensor from given form over interior facets. This function is provided for users who wish to build a customized assembler.
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void
add_to_global_tensor
(GenericTensor &A, std::vector<double> &cell_tensor, std::vector<const std::vector<dolfin::la_index> *> &dofs)¶ Add cell tensor to global tensor. Hook to allow the SymmetricAssembler to split the cell tensor into symmetric/antisymmetric parts.
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