In file sparsecholesky.hpp: A sparse cholesky factorization.
Documentation
A sparse cholesky factorization.
The unknowns are reordered by the minimum degree
ordering algorithm
Inheritance:
Public Methods
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SparseCholesky(const SparseMatrix<TM, TV_ROW, TV_COL> & a, BitArray* ainner = NULL, ARRAY<int>* acluster = NULL, bool allow_refactor = 0)
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~SparseCholesky()
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int VHeight() const
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int VWidth() const
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void Allocate(const ARRAY<int> & aorder, const ARRAY<MDOVertex> & vertices, const int* blocknr)
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void Factor()
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void FactorNew(const SparseMatrix<TM, TV_ROW, TV_COL> & a)
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virtual void Mult(const BaseVector & x, BaseVector & y) const
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virtual void MultAdd(TSCAL_VEC s, const BaseVector & x, BaseVector & y) const
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virtual void Smooth(BaseVector & u, const BaseVector & f, BaseVector & y) const
- A = L+D+L^T y = f - (L+D)^T u w = C^{-1} (y - L u) u += w y -= (L+D)^T w
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virtual ostream& Print(ostream & ost) const
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void Set(int i, int j, const TM & val)
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const TM& Get(int i, int j) const
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void SetOrig(int i, int j, const TM & val)
Private Fields
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MoveableMem<TM> lfact
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BitArray* inner
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MinimumDegreeOrdering* mdo
MoveableMem<TM> lfact
BitArray* inner
MinimumDegreeOrdering* mdo
SparseCholesky(const SparseMatrix<TM, TV_ROW, TV_COL> & a, BitArray* ainner = NULL, ARRAY<int>* acluster = NULL, bool allow_refactor = 0)
~SparseCholesky()
int VHeight() const
int VWidth() const
void Allocate(const ARRAY<int> & aorder, const ARRAY<MDOVertex> & vertices, const int* blocknr)
void Factor()
void FactorNew(const SparseMatrix<TM, TV_ROW, TV_COL> & a)
virtual void Mult(const BaseVector & x, BaseVector & y) const
virtual void MultAdd(TSCAL_VEC s, const BaseVector & x, BaseVector & y) const
virtual void Smooth(BaseVector & u, const BaseVector & f, BaseVector & y) const
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A = L+D+L^T
y = f - (L+D)^T u
w = C^{-1} (y - L u)
u += w
y -= (L+D)^T w
virtual ostream& Print(ostream & ost) const
void Set(int i, int j, const TM & val)
const TM& Get(int i, int j) const
void SetOrig(int i, int j, const TM & val)
- This class has no child classes.
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