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add unit tests for sparse LU and fix a couple of warnings

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This commit is contained in:
Gael Guennebaud
2008-10-20 11:37:45 +00:00
parent fa27cd1ed0
commit e1c50a3cb1
5 changed files with 61 additions and 37 deletions
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31
test/sparse.cpp
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@@ -99,7 +99,7 @@ template<typename Scalar> void sparse(int rows, int cols)
refMat.coeffRef(nonzeroCoords[0].x(), nonzeroCoords[0].y()) = Scalar(5);
VERIFY_IS_APPROX(m, refMat);
#if 0
// test InnerIterators and Block expressions
for(int j=0; j<cols; j++)
{
@@ -217,7 +217,6 @@ template<typename Scalar> void sparse(int rows, int cols)
// TODO test row major
}
#endif
// test LLT
{
@@ -232,8 +231,6 @@ template<typename Scalar> void sparse(int rows, int cols)
refMat2.diagonal() *= 0.5;
refMat2.llt().solve(b, &refX);
// std::cerr << refMat2 << "\n\n" << refMat2.llt().matrixL() << "\n\n";
// std::cerr << m2 << "\n\n";
typedef SparseMatrix<Scalar,Lower|SelfAdjoint> SparseSelfAdjointMatrix;
x = b;
SparseLLT<SparseSelfAdjointMatrix> (m2).solveInPlace(x);
@@ -256,6 +253,32 @@ template<typename Scalar> void sparse(int rows, int cols)
#endif
}
// test LU
{
SparseMatrix<Scalar> m2(rows, cols);
DenseMatrix refMat2(rows, cols);
DenseVector b = DenseVector::Random(cols);
DenseVector refX(cols), x(cols);
initSparse<Scalar>(density, refMat2, m2, ForceNonZeroDiag, &zeroCoords, &nonzeroCoords);
refMat2.lu().solve(b, &refX);
// x.setZero();
// SparseLU<SparseMatrix<Scalar> > (m2).solve(b,&x);
// VERIFY(refX.isApprox(x,test_precision<Scalar>()) && "LU: default");
#ifdef EIGEN_SUPERLU_SUPPORT
x.setZero();
SparseLU<SparseMatrix<Scalar>,SuperLU>(m2).solve(b,&x);
VERIFY(refX.isApprox(x,test_precision<Scalar>()) && "LU: SuperLU");
#endif
#ifdef EIGEN_UMFPACK_SUPPORT
x.setZero();
SparseLU<SparseMatrix<Scalar>,UmfPack>(m2).solve(b,&x);
VERIFY(refX.isApprox(x,test_precision<Scalar>()) && "LU: umfpack");
#endif
}
}
void test_sparse()