void DenseSymMatrix::HighRankUpdate(bool trans, Number alpha,
const DenseGenMatrix& V,
Number beta)
{
DBG_ASSERT((!trans && Dim()==V.NRows()) || (trans && Dim()==V.NCols()));
DBG_ASSERT(beta==0. || initialized_);
Index nrank;
if (trans) {
nrank = V.NRows();
}
else {
nrank = V.NCols();
}
IpBlasDsyrk(trans, Dim(), nrank, alpha, V.Values(), V.NRows(),
beta, values_, NRows());
initialized_ = true;
ObjectChanged();
}
bool DenseGenMatrix::ComputeCholeskyFactor(const DenseSymMatrix& M)
{
Index dim = M.Dim();
DBG_ASSERT(dim==NCols());
DBG_ASSERT(dim==NRows());
ObjectChanged();
// First we copy the content of the symmetric matrix into J
const Number* Mvalues = M.Values();
for (Index j=0; j<dim; j++) {
for (Index i=j; i<dim; i++) {
values_[i+j*dim] = Mvalues[i+j*dim];
}
}
// Now call the lapack subroutine to perform the factorization
Index info;
IpLapackDpotrf(dim, values_, dim, info);
DBG_ASSERT(info>=0);
if (info!=0) {
initialized_ = false;
return false;
}
// We set all strictly upper values to zero
// ToDo: This might not be necessary?!?
for (Index j=1; j<dim; j++) {
for (Index i=0; i<j; i++) {
values_[i+j*dim] = 0.;
}
}
factorization_ = CHOL;
initialized_ = true;
return true;
}
void DenseGenMatrix::AddMatrixProduct(Number alpha, const DenseGenMatrix& A,
bool transA, const DenseGenMatrix& B,
bool transB, Number beta)
{
Index m = NRows();
DBG_ASSERT((transA && A.NCols()==m) || (!transA && A.NRows()==m));
Index n = NCols();
DBG_ASSERT((transB && B.NRows()==n) || (!transB && B.NCols()==n));
Index k;
if (transA) {
k = A.NRows();
}
else {
k = A.NCols();
}
DBG_ASSERT((transB && B.NCols()==k) || (!transB && B.NRows()==k));
DBG_ASSERT(beta==0. || initialized_);
IpBlasDgemm(transA, transB, m, n, k, alpha, A.Values(), A.NRows(),
B.Values(), B.NRows(), beta, values_, NRows());
initialized_ = true;
ObjectChanged();
}
inline
void Vector::Copy(const Vector& x)
{
CopyImpl(x);
ObjectChanged();
// Also copy any cached scalar values from the original vector
// ToDo: Check if that is too much overhead
TaggedObject::Tag x_tag = x.GetTag();
if (x_tag == x.nrm2_cache_tag_) {
nrm2_cache_tag_ = GetTag();
cached_nrm2_ = x.cached_nrm2_;
}
if (x_tag == x.asum_cache_tag_) {
asum_cache_tag_ = GetTag();
cached_asum_ = x.cached_asum_;
}
if (x_tag == x.amax_cache_tag_) {
amax_cache_tag_ = GetTag();
cached_amax_ = x.cached_amax_;
}
if (x_tag == x.max_cache_tag_) {
max_cache_tag_ = GetTag();
cached_max_ = x.cached_max_;
}
if (x_tag == x.min_cache_tag_) {
min_cache_tag_ = GetTag();
cached_min_ = x.cached_min_;
}
if (x_tag == x.sum_cache_tag_) {
sum_cache_tag_ = GetTag();
cached_sum_ = x.cached_sum_;
}
if (x_tag == x.sumlogs_cache_tag_) {
sumlogs_cache_tag_ = GetTag();
cached_sumlogs_ = x.cached_sumlogs_;
}
}
void DenseSymMatrix::SpecialAddForLMSR1(const DenseVector& D,
const DenseGenMatrix& L)
{
const Index dim = Dim();
DBG_ASSERT(initialized_);
DBG_ASSERT(dim==D.Dim());
DBG_ASSERT(dim==L.NRows());
DBG_ASSERT(dim==L.NCols());
// First add the diagonal matrix
const Number* Dvalues = D.Values();
for (Index i=0; i<dim; i++) {
values_[i+i*dim] += Dvalues[i];
}
// Now add the strictly-lower triagular matrix L and its transpose
const Number* Lvalues = L.Values();
for (Index j=0; j<dim; j++) {
for (Index i=j+1; i<dim; i++) {
values_[i+j*dim] += Lvalues[i+j*dim];
}
}
ObjectChanged();
}
void MultiVectorMatrix::ScaleColumns(const Vector& scal_vec)
{
// Santiy checks
DBG_ASSERT(scal_vec.Dim() == NCols());
// See if we can understand the data
const DenseVector* dense_scal_vec =
static_cast<const DenseVector*>(&scal_vec);
DBG_ASSERT(dynamic_cast<const DenseVector*>(&scal_vec));
if (dense_scal_vec->IsHomogeneous()) {
Number val = dense_scal_vec->Scalar();
for (Index i=0; i<NCols(); i++) {
Vec(i)->Scal(val);
}
}
else {
const Number* values = dense_scal_vec->Values();
for (Index i=0; i<NCols(); i++) {
Vec(i)->Scal(values[i]);
}
}
ObjectChanged();
}
// PointRemoved
void
PathManipulator::PointRemoved(int32 index)
{
fSelection->Remove(index);
ObjectChanged(fPath);
}
inline
void Vector::ElementWiseSqrt()
{
ElementWiseSqrtImpl();
ObjectChanged();
}
/** Method for retrieving one block from the compound matrix as a
* non-const Matrix. Note that calling this method with mark the
* CompoundMatrix as changed. Therefore, only use this method if
* you are intending to change the Matrix that you receive. */
SmartPtr<Matrix> GetCompNonConst(Index irow, Index jcol)
{
ObjectChanged();
return Comp(irow, jcol);
}
void GenTMatrix::SetValues(const Number* Values)
{
IpBlasDcopy(Nonzeros(), Values, 1, values_, 1);
initialized_ = true;
ObjectChanged();
}
/** Method for setting the positive low-rank update part. */
void SetV(const MultiVectorMatrix& V)
{
V_ = &V;
ObjectChanged();
}
/** Return a particular component (non-const version). Note that
* calling this method with mark the CompoundVector as changed.
* Therefore, only use this method if you are intending to change
* the Vector that you receive.
*/
SmartPtr<Vector> GetCompNonConst(Index i)
{
ObjectChanged();
return Comp(i);
}
/** Get a Vector in a particular column as a non-const
* Vector. This is fail if the column has currently only a
* non-const Vector stored. */
inline SmartPtr<Vector> GetVectorNonConst(Index i)
{
ObjectChanged();
return Vec(i);
}
inline SmartPtr<SymMatrix> SymScaledMatrix::GetUnscaledMatrixNonConst()
{
DBG_ASSERT(IsValid(nonconst_matrix_));
ObjectChanged();
return nonconst_matrix_;
}
// PointChanged
void
PathManipulator::PointChanged(int32 index)
{
ObjectChanged(fPath);
}
// PathClosedChanged
void
PathManipulator::PathClosedChanged()
{
ObjectChanged(fPath);
}
inline
void Vector::Axpy(Number alpha, const Vector &x)
{
AxpyImpl(alpha, x);
ObjectChanged();
}
/** Method for setting the diagonal elements (as a Vector). */
void SetDiag(const Vector& D)
{
D_ = &D;
ObjectChanged();
}
inline
void Vector::ElementWiseSgn()
{
ElementWiseSgnImpl();
ObjectChanged();
}
/** Method for setting the negative low-rank update part. */
void SetU(const MultiVectorMatrix& U)
{
U_ = &U;
ObjectChanged();
}
inline
void Vector::ElementWiseDivide(const Vector& x)
{
ElementWiseDivideImpl(x);
ObjectChanged();
}
inline
void Vector::ElementWiseMultiply(const Vector& x)
{
ElementWiseMultiplyImpl(x);
ObjectChanged();
}
inline
void Vector::ElementWiseReciprocal()
{
ElementWiseReciprocalImpl();
ObjectChanged();
}
/** Retrieve the array for storing the matrix elements. This is
* the non-const version, and it is assume that afterwards the
* calling method will set all matrix elements. The matrix
* elements are stored one column after each other. */
Number* Values()
{
ObjectChanged();
initialized_ = true;
return values_;
}
/** Constructor. */
TaggedObject()
:
Subject()
{
ObjectChanged();
}
