本文整理汇总了C++中Epetra_LinearProblem::GetOperator方法的典型用法代码示例。如果您正苦于以下问题：C++ Epetra_LinearProblem::GetOperator方法的具体用法？C++ Epetra_LinearProblem::GetOperator怎么用？C++ Epetra_LinearProblem::GetOperator使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Epetra_LinearProblem的用法示例。
在下文中一共展示了Epetra_LinearProblem::GetOperator方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
void NOX::Epetra::Scaling::computeScaling(const Epetra_LinearProblem& problem)
{
Epetra_Vector* diagonal = 0;
for (unsigned int i = 0; i < scaleVector.size(); i ++) {
if (sourceType[i] == RowSum) {
diagonal = scaleVector[i].get();
// Make sure the Jacobian is an Epetra_RowMatrix, otherwise we can't
// perform a row sum scale!
const Epetra_RowMatrix* test = 0;
test = dynamic_cast<const Epetra_RowMatrix*>(problem.GetOperator());
if (test == 0) {
std::cout << "ERROR: NOX::Epetra::Scaling::scaleLinearSystem() - "
<< "For \"Row Sum\" scaling, the Matrix must be an "
<< "Epetra_RowMatrix derived object!" << std::endl;
throw "NOX Error";
}
test->InvRowSums(*diagonal);
diagonal->Reciprocal(*diagonal);
}
else if (sourceType[i] == ColSum) {
diagonal = scaleVector[i].get();
// Make sure the Jacobian is an Epetra_RowMatrix, otherwise we can't
// perform a row sum scale!
const Epetra_RowMatrix* test = 0;
test = dynamic_cast<const Epetra_RowMatrix*>(problem.GetOperator());
if (test == 0) {
std::cout << "ERROR: NOX::Epetra::Scaling::scaleLinearSystem() - "
<< "For \"Column Sum\" scaling, the Matrix must be an "
<< "Epetra_RowMatrix derived object!" << std::endl;
throw "NOX Error";
}
test->InvColSums(*diagonal);
diagonal->Reciprocal(*diagonal);
}
}
}