devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Updates to the Sparse unsupported solvers module.

Browse Source 
* change Sparse* specialization's signatures from <..., int Backend> to <..., typename Backend>. Update SparseExtra accordingly to use structs instead of the SparseBackend enum.
* add SparseLDLT Cholmod specialization
* for Cholmod and UmfPack, SparseLU, SparseLLT and SparseLDLT now use ei_solve_retval and have the new solve() method (to be closer to the 3.0 API).

* fix doc
This commit is contained in:
Romain Bossart
2010-10-04 20:56:54 +02:00
parent e3d01f85b2
commit c6503e03eb
15 changed files with 563 additions and 187 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
unsupported/test/sparse_ldlt.cpp
View File

@@ -25,6 +25,10 @@
#include "sparse.h"
#include <Eigen/SparseExtra>
#ifdef EIGEN_CHOLMOD_SUPPORT
#include <Eigen/CholmodSupport>
#endif
#ifdef EIGEN_TAUCS_SUPPORT
#include <Eigen/TaucsSupport>
#endif
@@ -56,6 +60,29 @@ template<typename Scalar> void sparse_ldlt(int rows, int cols)
VERIFY_IS_APPROX(refMat2.template selfadjointView<Upper>() * x, b);
VERIFY(refX.isApprox(x,test_precision<Scalar>()) && "LDLT: default");
#ifdef EIGEN_CHOLMOD_SUPPORT
x = b;
SparseLDLT<SparseSelfAdjointMatrix, Cholmod> ldlt2(m2);
if (ldlt2.succeeded())
ldlt2.solveInPlace(x);
else
std::cerr << "warning LDLT failed\n";
VERIFY_IS_APPROX(refMat2.template selfadjointView<Upper>() * x, b);
VERIFY(refX.isApprox(x,test_precision<Scalar>()) && "LDLT: cholmod solveInPlace");
SparseLDLT<SparseSelfAdjointMatrix, Cholmod> ldlt3(m2);
if (ldlt3.succeeded())
x = ldlt3.solve(b);
else
std::cerr << "warning LDLT failed\n";
VERIFY_IS_APPROX(refMat2.template selfadjointView<Upper>() * x, b);
VERIFY(refX.isApprox(x,test_precision<Scalar>()) && "LDLT: cholmod solve");
#endif
}
void test_sparse_ldlt()