void SymTMatrix::PrintImpl(
const Journalist& jnlst,
EJournalLevel level,
EJournalCategory category,
const std::string& name,
Index indent,
const std::string& prefix
) const
{
jnlst.Printf(level, category, "\n");
jnlst.PrintfIndented(level, category, indent, "%sSymTMatrix \"%s\" of dimension %d with %d nonzero elements:\n",
prefix.c_str(), name.c_str(), Dim(), Nonzeros());
if( initialized_ )
{
for( Index i = 0; i < Nonzeros(); i++ )
{
jnlst.PrintfIndented(level, category, indent, "%s%s[%5d,%5d]=%23.16e (%d)\n", prefix.c_str(), name.c_str(),
Irows()[i], Jcols()[i], values_[i], i);
}
}
else
{
jnlst.PrintfIndented(level, category, indent, "%sUninitialized!\n", prefix.c_str());
}
}
void SymTMatrix::ComputeRowAMaxImpl(
Vector& rows_norms,
bool init
) const
{
DBG_ASSERT(initialized_);
DenseVector* dense_vec = static_cast<DenseVector*>(&rows_norms);
DBG_ASSERT(dynamic_cast<DenseVector*>(&rows_norms));
const Index* irn = Irows();
const Index* jcn = Jcols();
const Number* val = values_;
Number* vec_vals = dense_vec->Values();
vec_vals--;
const Number zero = 0.;
IpBlasDcopy(NRows(), &zero, 0, vec_vals, 1);
for( Index i = 0; i < Nonzeros(); i++ )
{
const double f = fabs(*val);
vec_vals[*irn] = Max(vec_vals[*irn], f);
vec_vals[*jcn] = Max(vec_vals[*jcn], f);
val++;
irn++;
jcn++;
}
}
void SymTMatrix::FillStruct(ipfint* Irn, ipfint* Jcn) const
{
DBG_ASSERT(initialized_);
for(Index i=0; i<Nonzeros(); i++) {
Irn[i] = Irows()[i];
Jcn[i] = Jcols()[i];
}
}
void SymTMatrix::MultVectorImpl(Number alpha, const Vector &x, Number beta,
Vector &y) const
{
// A few sanity checks
DBG_ASSERT(Dim()==x.Dim());
DBG_ASSERT(Dim()==y.Dim());
// Take care of the y part of the addition
DBG_ASSERT(initialized_);
if( beta!=0.0 ) {
y.Scal(beta);
}
else {
y.Set(0.0); // In case y hasn't been initialized yet
}
// See if we can understand the data
const DenseVector* dense_x = dynamic_cast<const DenseVector*>(&x);
DBG_ASSERT(dense_x); /* ToDo: Implement others */
DenseVector* dense_y = dynamic_cast<DenseVector*>(&y);
DBG_ASSERT(dense_y); /* ToDo: Implement others */
if (dense_x && dense_y) {
const Index* irn=Irows();
const Index* jcn=Jcols();
const Number* val=values_;
Number* yvals=dense_y->Values();
if (dense_x->IsHomogeneous()) {
Number as = alpha * dense_x->Scalar();
for(Index i=0; i<Nonzeros(); i++) {
yvals[*irn-1] += as * (*val);
if (*irn!=*jcn) {
// this is not a diagonal element
yvals[*jcn-1] += as * (*val);
}
val++;
irn++;
jcn++;
}
}
else {
const Number* xvals=dense_x->Values();
for(Index i=0; i<Nonzeros(); i++) {
yvals[*irn-1] += alpha* (*val) * xvals[*jcn-1];
if (*irn!=*jcn) {
// this is not a diagonal element
yvals[*jcn-1] += alpha* (*val) * xvals[*irn-1];
}
val++;
irn++;
jcn++;
}
}
}
}
void GenTMatrix::TransMultVectorImpl(Number alpha, const Vector &x, Number beta,
Vector &y) const
{
// A few sanity checks
DBG_ASSERT(NCols()==y.Dim());
DBG_ASSERT(NRows()==x.Dim());
// Take care of the y part of the addition
DBG_ASSERT(initialized_);
if ( beta!=0.0 ) {
y.Scal(beta);
}
else {
y.Set(0.0); // In case y hasn't been initialized yet
}
// See if we can understand the data
const DenseVector* dense_x = static_cast<const DenseVector*>(&x);
DBG_ASSERT(dynamic_cast<const DenseVector*>(&x));
DenseVector* dense_y = static_cast<DenseVector*>(&y);
DBG_ASSERT(dynamic_cast<DenseVector*>(&y));
if (dense_x && dense_y) {
const Index* irows=Irows();
const Index* jcols=Jcols();
const Number* val=values_;
Number* yvals=dense_y->Values();
yvals--;
if (dense_x->IsHomogeneous()) {
Number as = alpha * dense_x->Scalar();
for (Index i=0; i<Nonzeros(); i++) {
yvals[*jcols] += as * (*val);
val++;
jcols++;
}
}
else {
const Number* xvals=dense_x->Values();
xvals--;
for (Index i=0; i<Nonzeros(); i++) {
yvals[*jcols] += alpha* (*val) * xvals[*irows];
val++;
irows++;
jcols++;
}
}
}
}
void GenTMatrix::ComputeRowAMaxImpl(Vector& rows_norms, bool init) const
{
DBG_ASSERT(initialized_);
DenseVector* dense_vec = static_cast<DenseVector*>(&rows_norms);
DBG_ASSERT(dynamic_cast<DenseVector*>(&rows_norms));
const Index* irows=Irows();
const Number* val=values_;
Number* vec_vals=dense_vec->Values();
vec_vals--;
for (Index i=0; i<Nonzeros(); i++) {
vec_vals[irows[i]] = Max(vec_vals[irows[i]], fabs(val[i]));
}
}