Dune Core Modules (2.5.0)
bcrsmatrix.hh
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167 DUNE_THROW(BCRSMatrixError,"You can only create an ImplicitBuilder for a matrix in implicit build mode");
169 DUNE_THROW(BCRSMatrixError,"You can only create an ImplicitBuilder for a matrix with set size that has not been compressed() yet");
187 ImplicitMatrixBuilder(Matrix& m, size_type rows, size_type cols, size_type avg_cols_per_row, double overflow_fraction)
191 DUNE_THROW(BCRSMatrixError,"You can only set up a matrix for this ImplicitBuilder if it has no memory allocated yet");
440 };
466 };
503 };
512 DUNE_THROW(BCRSMatrixError,"You cannot use operator[] in implicit build mode before calling compress()");
524 DUNE_THROW(BCRSMatrixError,"You cannot use operator[] in implicit build mode before calling compress()");
770 DUNE_THROW(InvalidStateException,"BCRSMatrix can only be copy-constructed when source matrix is completely empty (size not set) or fully built)");
807 if (ready == building && (build_mode == unknown || build_mode == random || build_mode == row_wise) && (bm == row_wise || bm == random))
810 DUNE_THROW(InvalidStateException, "Matrix structure cannot be changed at this stage anymore (ready == "<<ready<<").");
836 DUNE_THROW(Dune::BCRSMatrixError,"number of non-zeroes may not be set in implicit mode, use setImplicitBuildModeParameters() instead");
867 DUNE_THROW(InvalidStateException,"You cannot modify build mode parameters at this stage anymore");
883 if (!((ready == notAllocated || ready == built) && (Mat.ready == notAllocated || Mat.ready == built)))
884 DUNE_THROW(InvalidStateException,"BCRSMatrix can only be copied when both target and source are empty or fully built)");
942 DUNE_THROW(BCRSMatrixError,"creation only allowed if row wise allocation was requested in the constructor");
1235 dwarn << "WARNING: size of row "<< i.index()<<" is "<<j.offset()<<". But was specified as being "<< (*i).end().offset()
1236 <<". This means you are wasting valuable space and creating additional cache misses!"<<std::endl;
1337 DUNE_THROW(InvalidStateException,"You may only call compress() at the end of the 'building' stage");
1456 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1484 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1517 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1539 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1564 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1584 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1606 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1625 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1644 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1663 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1678 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1714 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1733 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1752 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1771 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1792 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1819 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1839 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1859 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1882 DUNE_THROW(BCRSMatrixError,"You can only call arithmetic operations on fully built BCRSMatrix instances");
1961 size_type allocationSize_; //allocated size of a and j arrays, except in implicit mode: nnz_==allocationsSize_
2147 void allocate(size_type rows, size_type columns, size_type allocationSize, bool allocateRows, bool allocate_data)
2159 DUNE_THROW(InvalidStateException,"Rows have already been allocated, cannot allocate a second time");
2205 DUNE_THROW(InvalidStateException,"implicit_allocate() may only be called in implicit build mode");
2211 DUNE_THROW(InvalidStateException,"You have to set the implicit build mode parameters before starting to build the matrix");
This file implements a vector space as a tensor product of a given vector space. The number of compon...
Iterator class for sequential creation of blocks
Definition: bcrsmatrix.hh:929
bool operator==(const CreateIterator &it) const
equality
Definition: bcrsmatrix.hh:1021
CreateIterator & operator++()
prefix increment
Definition: bcrsmatrix.hh:946
size_type index() const
The number of the row that the iterator currently points to.
Definition: bcrsmatrix.hh:1027
bool operator!=(const CreateIterator &it) const
inequality
Definition: bcrsmatrix.hh:1015
CreateIterator(BCRSMatrix &_Mat, size_type _i)
constructor
Definition: bcrsmatrix.hh:932
void insert(size_type j)
put column index in row
Definition: bcrsmatrix.hh:1033
bool contains(size_type j)
return true if column index is in row
Definition: bcrsmatrix.hh:1039
size_type size() const
Get the current row size.
Definition: bcrsmatrix.hh:1048
Class used by shared_ptr to deallocate memory using the proper allocator.
Definition: bcrsmatrix.hh:2118
RealRowIterator()
empty constructor, use with care!
Definition: bcrsmatrix.hh:555
bool equals(const RealRowIterator< ValueType > &other) const
equality
Definition: bcrsmatrix.hh:583
std::remove_const< T >::type ValueType
The unqualified value type.
Definition: bcrsmatrix.hh:542
bool equals(const RealRowIterator< const ValueType > &other) const
equality
Definition: bcrsmatrix.hh:590
RealRowIterator(row_type *_p, size_type _i)
constructor
Definition: bcrsmatrix.hh:550
size_type index() const
return index
Definition: bcrsmatrix.hh:565
bool exists(size_type i, size_type j) const
return true if (i,j) is in pattern
Definition: bcrsmatrix.hh:1935
BuildStage buildStage() const
The current build stage of the matrix.
Definition: bcrsmatrix.hh:1921
friend class CreateIterator
allow CreateIterator to access internal data
Definition: bcrsmatrix.hh:1063
void copyWindowStructure(const BCRSMatrix &Mat)
Copy the window structure from another matrix.
Definition: bcrsmatrix.hh:2050
B & entry(size_type row, size_type col)
Returns reference to entry (row,col) of the matrix.
Definition: bcrsmatrix.hh:1264
void usmhv(const field_type &alpha, const X &x, Y &y) const
y += alpha A^H x
Definition: bcrsmatrix.hh:1767
RealRowIterator< const row_type > const_iterator
The const iterator over the matrix rows.
Definition: bcrsmatrix.hh:666
BCRSMatrix(size_type _n, size_type _m, size_type _avg, double _overflowsize, BuildMode bm)
construct matrix with a known average number of entries per row
Definition: bcrsmatrix.hh:743
void allocate(size_type rows, size_type columns, size_type allocationSize, bool allocateRows, bool allocate_data)
Allocate memory for the matrix structure.
Definition: bcrsmatrix.hh:2147
B::field_type field_type
export the type representing the field
Definition: bcrsmatrix.hh:445
BCRSMatrix & axpy(field_type alpha, const BCRSMatrix &b)
Add the scaled entries of another matrix to this one.
Definition: bcrsmatrix.hh:1560
FieldTraits< ft >::real_type infinity_norm_real() const
simplified infinity norm (uses Manhattan norm for complex values)
Definition: bcrsmatrix.hh:1837
void deallocate(bool deallocateRows=true)
deallocate memory of the matrix.
Definition: bcrsmatrix.hh:2067
Iterator RowIterator
rename the iterators for easier access
Definition: bcrsmatrix.hh:660
row_type & operator[](size_type i)
random access to the rows
Definition: bcrsmatrix.hh:508
void endrowsizes()
indicate that size of all rows is defined
Definition: bcrsmatrix.hh:1118
void incrementrowsize(size_type i, size_type s=1)
increment size of row i by s (1 by default)
Definition: bcrsmatrix.hh:1107
size_type nonzeroes() const
number of blocks that are stored (the number of blocks that possibly are nonzero)
Definition: bcrsmatrix.hh:1915
ConstIterator ConstRowIterator
rename the const row iterator for easier access
Definition: bcrsmatrix.hh:697
void setrowsize(size_type i, size_type s)
Set number of indices in row i to s.
Definition: bcrsmatrix.hh:1086
BCRSMatrix & operator*=(const field_type &k)
vector space multiplication with scalar
Definition: bcrsmatrix.hh:1452
RealRowIterator< row_type > iterator
The iterator over the (mutable matrix rows.
Definition: bcrsmatrix.hh:630
void usmtv(const field_type &alpha, const X &x, Y &y) const
y += alpha A^T x
Definition: bcrsmatrix.hh:1710
@ blocklevel
The number of blocklevels the matrix contains.
Definition: bcrsmatrix.hh:465
@ implicit
Build entries randomly with an educated guess for the number of entries per row.
Definition: bcrsmatrix.hh:498
BCRSMatrix(size_type _n, size_type _m, size_type _nnz, BuildMode bm)
matrix with known number of nonzeroes
Definition: bcrsmatrix.hh:715
::Dune::CompressionStatistics< size_type > CompressionStatistics
The type for the statistics object returned by compress()
Definition: bcrsmatrix.hh:460
BCRSMatrix & operator-=(const BCRSMatrix &b)
Subtract the entries of another matrix from this one.
Definition: bcrsmatrix.hh:1535
BCRSMatrix(const BCRSMatrix &Mat)
copy constructor
Definition: bcrsmatrix.hh:764
Iterator end()
Get iterator to one beyond last row.
Definition: bcrsmatrix.hh:640
void setIndices(size_type row, It begin, It end)
Set all column indices for row from the given iterator range.
Definition: bcrsmatrix.hh:1203
void addindex(size_type row, size_type col)
add index (row,col) to the matrix
Definition: bcrsmatrix.hh:1160
row_type::Iterator ColIterator
Iterator for the entries of each row.
Definition: bcrsmatrix.hh:663
FieldTraits< field_type >::real_type frobenius_norm() const
frobenius norm: sqrt(sum over squared values of entries)
Definition: bcrsmatrix.hh:1809
A::size_type size_type
The type for the index access and the size.
Definition: bcrsmatrix.hh:457
BCRSMatrix & operator/=(const field_type &k)
vector space division by scalar
Definition: bcrsmatrix.hh:1480
BCRSMatrix & operator+=(const BCRSMatrix &b)
Add the entries of another matrix to this one.
Definition: bcrsmatrix.hh:1513
CreateIterator createend()
get create iterator pointing to one after the last block
Definition: bcrsmatrix.hh:1072
FieldTraits< field_type >::real_type frobenius_norm2() const
square of frobenius norm, need for block recursion
Definition: bcrsmatrix.hh:1788
row_type::ConstIterator ConstColIterator
Const iterator to the entries of a row.
Definition: bcrsmatrix.hh:700
void usmv(F &&alpha, const X &x, Y &y) const
y += alpha A x
Definition: bcrsmatrix.hh:1640
CompressedBlockVectorWindow< B, A > row_type
implement row_type with compressed vector
Definition: bcrsmatrix.hh:454
size_type getrowsize(size_type i) const
get current number of indices in row i
Definition: bcrsmatrix.hh:1097
size_type M() const
number of columns (counted in blocks)
Definition: bcrsmatrix.hh:1909
CreateIterator createbegin()
get initial create iterator
Definition: bcrsmatrix.hh:1066
@ rowSizesBuilt
The row sizes of the matrix are known.
Definition: bcrsmatrix.hh:437
@ notbuilt
Matrix is not built at all, no memory has been allocated, build mode and size can still be set.
Definition: bcrsmatrix.hh:428
@ notAllocated
Matrix is not built at all, no memory has been allocated, build mode and size can still be set.
Definition: bcrsmatrix.hh:430
@ building
Matrix is currently being built, some memory has been allocated, build mode and size are fixed.
Definition: bcrsmatrix.hh:432
BuildMode buildMode() const
The currently selected build mode of the matrix.
Definition: bcrsmatrix.hh:1927
FieldTraits< ft >::real_type infinity_norm() const
infinity norm (row sum norm, how to generalize for blocks?)
Definition: bcrsmatrix.hh:1817
B block_type
export the type representing the components
Definition: bcrsmatrix.hh:448
void implicit_allocate(size_type _n, size_type _m)
organizes allocation implicit mode calculates correct array size to be allocated and sets the the win...
Definition: bcrsmatrix.hh:2202
BCRSMatrix(size_type _n, size_type _m, BuildMode bm)
matrix with unknown number of nonzeroes
Definition: bcrsmatrix.hh:724
void endindices()
indicate that all indices are defined, check consistency
Definition: bcrsmatrix.hh:1217
CompressionStatistics compress()
Finishes the buildstage in implicit mode.
Definition: bcrsmatrix.hh:1328
void setDataPointers()
Set data pointers for all rows.
Definition: bcrsmatrix.hh:2031
size_type N() const
number of rows (counted in blocks)
Definition: bcrsmatrix.hh:1903
void setBuildMode(BuildMode bm)
Sets the build mode of the matrix.
Definition: bcrsmatrix.hh:800
void setSize(size_type rows, size_type columns, size_type nnz=0)
Set the size of the matrix.
Definition: bcrsmatrix.hh:828
BCRSMatrix & operator=(const BCRSMatrix &Mat)
assignment
Definition: bcrsmatrix.hh:878
void setColumnPointers(ConstRowIterator row)
Copy row sizes from iterator range starting at row and set column index pointers for all rows.
Definition: bcrsmatrix.hh:2005
ConstIterator end() const
Get const iterator to one beyond last row.
Definition: bcrsmatrix.hh:677
ConstIterator begin() const
Get const iterator to first row.
Definition: bcrsmatrix.hh:671
void setImplicitBuildModeParameters(size_type _avg, double _overflow)
Set parameters needed for creation in implicit build mode.
Definition: bcrsmatrix.hh:856
A allocator_type
export the allocator type
Definition: bcrsmatrix.hh:451
compressed_block_vector_unmanaged< B, A >::ConstIterator ConstIterator
make iterators available as types
Definition: bvector.hh:1052
void set(size_type _n, B *_p, size_type *_j)
set size and pointer
Definition: bvector.hh:1104
size_type * getindexptr()
get pointer
Definition: bvector.hh:1136
void setsize(size_type _n)
set size only
Definition: bvector.hh:1112
compressed_block_vector_unmanaged< B, A >::Iterator Iterator
make iterators available as types
Definition: bvector.hh:1049
void setptr(B *_p)
set pointer only
Definition: bvector.hh:1118
size_type getsize() const
get size
Definition: bvector.hh:1153
void setindexptr(size_type *_j)
set pointer only
Definition: bvector.hh:1124
Proxy row object for entry access.
Definition: bcrsmatrix.hh:130
block_type & operator[](size_type j) const
Returns entry in column j.
Definition: bcrsmatrix.hh:135
A wrapper for uniform access to the BCRSMatrix during and after the build stage in implicit build mod...
Definition: bcrsmatrix.hh:110
Matrix::block_type block_type
The block_type of the underlying matrix.
Definition: bcrsmatrix.hh:118
ImplicitMatrixBuilder(Matrix &m)
Creates an ImplicitMatrixBuilder for matrix m.
Definition: bcrsmatrix.hh:163
ImplicitMatrixBuilder(Matrix &m, size_type rows, size_type cols, size_type avg_cols_per_row, double overflow_fraction)
Sets up matrix m for implicit construction using the given parameters and creates an ImplicitBmatrixu...
Definition: bcrsmatrix.hh:187
size_type M() const
The number of columns in the matrix.
Definition: bcrsmatrix.hh:210
Matrix::size_type size_type
The size_type of the underlying matrix.
Definition: bcrsmatrix.hh:121
row_object operator[](size_type i) const
Returns a proxy for entries in row i.
Definition: bcrsmatrix.hh:198
size_type N() const
The number of rows in the matrix.
Definition: bcrsmatrix.hh:204
The overflow error used during implicit BCRSMatrix construction was exhausted.
Definition: istlexception.hh:34
Default exception if a function was called while the object is not in a valid state for that function...
Definition: exceptions.hh:279
T block_type
Export the type representing the components.
Definition: matrix.hh:562
Base class for stl conformant forward iterators.
Definition: iteratorfacades.hh:433
size_type size() const
number of blocks in the array (are of size 1 here)
Definition: basearray.hh:735
Type traits to determine the type of reals (when working with complex numbers)
constexpr decltype(auto) elementAt(Container &&c, Index &&i)
Get element at given position from container.
Definition: hybridutilities.hh:138
DWarnType dwarn(std::cerr)
Stream for warnings indicating problems.
Definition: stdstreams.hh:159
This file implements iterator facade classes for writing stl conformant iterators.
Some handy generic functions for ISTL matrices.
Standard Dune debug streams.
Statistics about compression achieved in implicit mode.
Definition: bcrsmatrix.hh:81
size_type overflow_total
total number of elements written to the overflow area during construction.
Definition: bcrsmatrix.hh:87
size_type maximum
maximum number of non-zeroes per row.
Definition: bcrsmatrix.hh:85
double avg
average number of non-zeroes per row.
Definition: bcrsmatrix.hh:83
double mem_ratio
fraction of wasted memory resulting from non-used overflow area.
Definition: bcrsmatrix.hh:92
Traits for type conversions and type information.
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