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

Fix SparseLU::absDeterminant and add respective unit test

Browse Source
This commit is contained in:
Gael Guennebaud
2014-10-17 16:52:56 +02:00
parent a13bc22204
commit a370b1f2e2
4 changed files with 40 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
test/sparse_solver.h
View File

@@ -133,7 +133,23 @@ void check_sparse_determinant(Solver& solver, const typename Solver::MatrixType&
Scalar refDet = dA.determinant();
VERIFY_IS_APPROX(refDet,solver.determinant());
}
template<typename Solver, typename DenseMat>
void check_sparse_abs_determinant(Solver& solver, const typename Solver::MatrixType& A, const DenseMat& dA)
{
using std::abs;
typedef typename Solver::MatrixType Mat;
typedef typename Mat::Scalar Scalar;
solver.compute(A);
if (solver.info() != Success)
{
std::cerr << "sparse solver testing: factorization failed (check_sparse_abs_determinant)\n";
return;
}
Scalar refDet = abs(dA.determinant());
VERIFY_IS_APPROX(refDet,solver.absDeterminant());
}
template<typename Solver, typename DenseMat>
int generate_sparse_spd_problem(Solver& , typename Solver::MatrixType& A, typename Solver::MatrixType& halfA, DenseMat& dA, int maxSize = 300)
@@ -333,3 +349,20 @@ template<typename Solver> void check_sparse_square_determinant(Solver& solver)
check_sparse_determinant(solver, A, dA);
}
}
template<typename Solver> void check_sparse_square_abs_determinant(Solver& solver)
{
typedef typename Solver::MatrixType Mat;
typedef typename Mat::Scalar Scalar;
typedef Matrix<Scalar,Dynamic,Dynamic> DenseMatrix;
// generate the problem
Mat A;
DenseMatrix dA;
generate_sparse_square_problem(solver, A, dA, 30);
A.makeCompressed();
for (int i = 0; i < g_repeat; i++) {
check_sparse_abs_determinant(solver, A, dA);
}
}

3
test/sparselu.cpp
View File

@@ -44,6 +44,9 @@ template<typename T> void test_sparselu_T()
check_sparse_square_solving(sparselu_colamd);
check_sparse_square_solving(sparselu_amd);
check_sparse_square_solving(sparselu_natural);
check_sparse_square_abs_determinant(sparselu_colamd);
check_sparse_square_abs_determinant(sparselu_amd);
}
void test_sparselu()