Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F79857606
sparse_lu.hpp
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Wed, Aug 28, 15:34
Size
1 KB
Mime Type
text/x-c++
Expires
Fri, Aug 30, 15:34 (2 d)
Engine
blob
Format
Raw Data
Handle
20244723
Attached To
rSPECMICP SpecMiCP / ReactMiCP
sparse_lu.hpp
View Options
#ifndef SPECMICP_SPARSESOLVERS_SPARSELU_HPP
#define SPECMICP_SPARSESOLVERS_SPARSELU_HPP
#include "sparse_solver_structs.hpp"
#include "sparse_solver_base.hpp"
#include <Eigen/SparseLU>
namespace specmicp {
namespace sparse_solvers {
template <class MatrixT, class DerivedR, class DerivedS>
class SparseSolverLU: public SparseSolverBase<MatrixT, DerivedR, DerivedS>
{
using SolverT = Eigen::SparseLU<MatrixT, Eigen::COLAMDOrdering<int>>;
public:
//! \brief Decompose the jacboian
SparseSolverReturnCode decompose(MatrixT& jacobian)
{
m_solver.compute(jacobian);
if (m_solver.info() != Eigen::Success)
{
return SparseSolverReturnCode::FailedDecomposition;
}
return SparseSolverReturnCode::Success;
}
//! \brief Solve the problem
SparseSolverReturnCode solve(
const DerivedR& residuals,
DerivedS& solution
)
{
solution = m_solver.solve(-residuals);
if (m_solver.info() != Eigen::Success)
{
return SparseSolverReturnCode::FailedSystemSolving;
}
return SparseSolverReturnCode::Success;
}
SparseSolverReturnCode solve_scaling(
const DerivedR& residuals,
const DerivedR& scaling,
DerivedS& solution
)
{
solution = m_solver.solve(scaling.asDiagonal()*(-residuals));
if (m_solver.info() != Eigen::Success)
{
return SparseSolverReturnCode::FailedSystemSolving;
}
return SparseSolverReturnCode::Success;
}
private:
SolverT m_solver;
};
} // end namespace sparse_solvers
} // end namespace specmicp
#endif //SPECMICP_SPARSESOLVERS_SPARSELU_HPP
Event Timeline
Log In to Comment