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| MultiVec () |
| Default constructor. More...
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virtual | ~MultiVec () |
| Destructor (virtual for memory safety of derived classes). More...
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virtual MultiVec< ScalarType > * | Clone (const int numvecs) const =0 |
| Create a new MultiVec with numvecs columns. More...
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virtual MultiVec< ScalarType > * | CloneCopy () const =0 |
| Create a new MultiVec and copy contents of *this into it (deep copy). More...
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virtual MultiVec< ScalarType > * | CloneCopy (const std::vector< int > &index) const =0 |
| Creates a new Belos::MultiVec and copies the selected contents of *this into the new multivector (deep copy). The copied vectors from *this are indicated by the index.size() indices in index . More...
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virtual MultiVec< ScalarType > * | CloneViewNonConst (const std::vector< int > &index)=0 |
| Creates a new Belos::MultiVec that shares the selected contents of *this . The index of the numvecs vectors copied from *this are indicated by the indices given in index . More...
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virtual const MultiVec< ScalarType > * | CloneView (const std::vector< int > &index) const =0 |
| Creates a new Belos::MultiVec that shares the selected contents of *this . The index of the numvecs vectors copied from *this are indicated by the indices given in index . More...
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virtual ptrdiff_t | GetGlobalLength () const =0 |
| The number of rows in the multivector. More...
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virtual int | GetNumberVecs () const =0 |
| The number of vectors (i.e., columns) in the multivector. More...
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virtual void | MvTimesMatAddMv (const ScalarType alpha, const MultiVec< ScalarType > &A, const Teuchos::SerialDenseMatrix< int, ScalarType > &B, const ScalarType beta)=0 |
| Update *this with alpha * A * B + beta * (*this ). More...
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virtual void | MvAddMv (const ScalarType alpha, const MultiVec< ScalarType > &A, const ScalarType beta, const MultiVec< ScalarType > &B)=0 |
| Replace *this with alpha * A + beta * B . More...
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virtual void | MvScale (const ScalarType alpha)=0 |
| Scale each element of the vectors in *this with alpha . More...
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virtual void | MvScale (const std::vector< ScalarType > &alpha)=0 |
| Scale each element of the i -th vector in *this with alpha[i] . More...
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virtual void | MvTransMv (const ScalarType alpha, const MultiVec< ScalarType > &A, Teuchos::SerialDenseMatrix< int, ScalarType > &B) const =0 |
| Compute a dense matrix B through the matrix-matrix multiply alpha * A^T * (*this ). More...
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virtual void | MvDot (const MultiVec< ScalarType > &A, std::vector< ScalarType > &b) const =0 |
| Compute the dot product of each column of *this with the corresponding column of A. More...
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virtual void | MvNorm (std::vector< typename Teuchos::ScalarTraits< ScalarType >::magnitudeType > &normvec, NormType type=TwoNorm) const =0 |
| Compute the norm of each vector in *this . More...
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virtual void | SetBlock (const MultiVec< ScalarType > &A, const std::vector< int > &index)=0 |
| Copy the vectors in A to a set of vectors in *this . More...
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virtual void | MvRandom ()=0 |
| Fill all the vectors in *this with random numbers. More...
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virtual void | MvInit (const ScalarType alpha)=0 |
| Replace each element of the vectors in *this with alpha . More...
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virtual void | MvPrint (std::ostream &os) const =0 |
| Print *this multivector to the os output stream. More...
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template<class ScalarType>
class Belos::MultiVec< ScalarType >
Interface for multivectors used by Belos' linear solvers.
- Author
- Michael Heroux, Rich Lehoucq, and Heidi Thornquist
- Template Parameters
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ScalarType | The type of entries of the multivector. |
Belos accesses multivectors through a traits interface called MultiVecTraits. If you want to use Belos with your own multivector class MV, you may either specialize MultiVecTraits for MV, or you may wrap MV in your own class that implements MultiVec. Specializing MultiVecTraits works via compile-time polymorphism, whereas implementing the MultiVec interface works via run-time polymorphism. You may pick whichever option you like. However, specializing MultiVecTraits is the preferred method. This is because Belos' linear solvers always use a specialization of MultiVecTraits to access multivector operations. They only use MultiVec through a specialization of the MultiVecTraits traits class, which is implemented below in this header file.
If you want your multivector class (or a wrapper thereof) to implement the MultiVec interface, you should inherit from MultiVec<ScalarType>, where ScalarType is the type of entries in the multivector. For example, a multivector with entries of type double would inherit from MultiVec<double>.
Definition at line 91 of file BelosMultiVec.hpp.