49 #include "Teuchos_TimeMonitor.hpp"
51 #include "Thyra_MultiVectorStdOps.hpp"
59 DiagnosticLinearOp::DiagnosticLinearOp(
const Teuchos::RCP<std::ostream>& ostrm,
60 const ModifiableLinearOp& A,
61 const std::string& diagnosticString)
62 : outputStream_(ostrm),
65 diagString_(diagnosticString),
66 timer_(diagnosticString) {}
68 DiagnosticLinearOp::DiagnosticLinearOp(
const Teuchos::RCP<std::ostream>& ostrm,
const LinearOp& A,
69 const std::string& diagnosticString)
70 : outputStream_(ostrm),
71 wrapOpA_(Teuchos::null),
73 diagString_(diagnosticString),
74 timer_(diagnosticString) {}
80 DiagnosticLinearOp::DiagnosticLinearOp(
const Teuchos::RCP<std::ostream>& ostrm,
81 const LinearOp& fwdOp,
const ModifiableLinearOp& A,
82 const std::string& diagnosticString)
83 : outputStream_(ostrm),
87 diagString_(diagnosticString),
88 timer_(diagnosticString) {}
91 double elapsedTime = totalTime();
92 int applications = numApplications();
94 (*outputStream_) <<
"DiagnosticLinearOp \"" << diagString_ <<
"\": "
95 <<
"elapsed = " << elapsedTime <<
", "
96 <<
"applications = " << applications <<
", ";
98 (*outputStream_) <<
"timer/app = " << elapsedTime / double(applications) << std::endl;
100 (*outputStream_) <<
"timer/app = "
101 <<
"none" << std::endl;
117 const double beta)
const {
118 Teko_DEBUG_SCOPE(
"DiagnosticLinearOp::implicityApply", 10);
121 Teuchos::TimeMonitor monitor(timer_,
false);
124 if (beta != 0.0) z = deepcopy(y);
126 wrapOpA_lo_->apply(Thyra::NOTRANS, *x, y.ptr(), alpha, beta);
129 bool printResidual = (fwdOp_ != Teuchos::null);
132 MultiVector residual = Teko::deepcopy(x);
135 fwdOp_->apply(Thyra::NOTRANS, *y, residual.ptr(), -1.0, alpha);
136 if (beta != 0.0) fwdOp_->apply(Thyra::NOTRANS, *z, residual.ptr(), beta, 1.0);
139 std::vector<double> norms(y->domain()->dim());
140 std::vector<double> rhsNorms(x->domain()->dim());
141 Thyra::norms_2<double>(*residual, Teuchos::arrayViewFromVector(norms));
142 Thyra::norms_2<double>(*x, Teuchos::arrayViewFromVector(rhsNorms));
145 (*outputStream_) <<
"DiagnosticLinearOp \"" << diagString_ <<
"\": residual = [";
146 for (std::size_t i = 0; i < norms.size(); ++i)
147 (*outputStream_) <<
" " << std::scientific << std::setprecision(4)
148 << norms[i] / rhsNorms[i];
149 (*outputStream_) <<
" ]" << std::endl;
151 residualNorm_ = norms[0];
virtual void implicitApply(const MultiVector &x, MultiVector &y, const double alpha=1.0, const double beta=0.0) const
Perform a matrix vector multiply with this operator.
virtual ~DiagnosticLinearOp()
Destructor prints out timing information about this operator.