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bug #897: make umfpack support use Ref<>

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This commit is contained in:
Gael Guennebaud 2015-06-09 23:30:06 +02:00
parent feaf76c001
commit 0b2cbb2bdc
1 changed files with 38 additions and 63 deletions
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99
Eigen/src/UmfPackSupport/UmfPackSupport.h
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@ -107,15 +107,6 @@ inline int umfpack_get_determinant(std::complex<double> *Mx, double *Ex, void *N
return umfpack_zi_get_determinant(&mx_real,0,Ex,NumericHandle,User_Info);
}
namespace internal {
template<typename T> struct umfpack_helper_is_sparse_plain : false_type {};
template<typename Scalar, int Options, typename StorageIndex>
struct umfpack_helper_is_sparse_plain<SparseMatrix<Scalar,Options,StorageIndex> >
: true_type {};
template<typename Scalar, int Options, typename StorageIndex>
struct umfpack_helper_is_sparse_plain<MappedSparseMatrix<Scalar,Options,StorageIndex> >
: true_type {};
}
/** \ingroup UmfPackSupport_Module
* \brief A sparse LU factorization and solver based on UmfPack
@ -147,12 +138,18 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
typedef Matrix<int, MatrixType::RowsAtCompileTime, 1> IntColVectorType;
typedef SparseMatrix<Scalar> LUMatrixType;
typedef SparseMatrix<Scalar,ColMajor,int> UmfpackMatrixType;
typedef Ref<const UmfpackMatrixType, StandardCompressedFormat> UmfpackMatrixRef;
public:
UmfPackLU() { init(); }
UmfPackLU()
: m_dummy(0,0), mp_matrix(m_dummy)
{
init();
}
explicit UmfPackLU(const MatrixType& matrix)
: mp_matrix(matrix)
{
init();
compute(matrix);
@ -164,8 +161,8 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
if(m_numeric) umfpack_free_numeric(&m_numeric,Scalar());
}
inline Index rows() const { return m_copyMatrix.rows(); }
inline Index cols() const { return m_copyMatrix.cols(); }
inline Index rows() const { return mp_matrix.rows(); }
inline Index cols() const { return mp_matrix.cols(); }
/** \brief Reports whether previous computation was successful.
*
@ -211,7 +208,7 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
{
if(m_symbolic) umfpack_free_symbolic(&m_symbolic,Scalar());
if(m_numeric) umfpack_free_numeric(&m_numeric,Scalar());
grapInput(matrix.derived());
grab(matrix.derived());
analyzePattern_impl();
factorize_impl();
}
@ -228,7 +225,7 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
if(m_symbolic) umfpack_free_symbolic(&m_symbolic,Scalar());
if(m_numeric) umfpack_free_numeric(&m_numeric,Scalar());
grapInput(matrix.derived());
grab(matrix.derived());
analyzePattern_impl();
}
@ -246,7 +243,7 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
if(m_numeric)
umfpack_free_numeric(&m_numeric,Scalar());
grapInput(matrix.derived());
grab(matrix.derived());
factorize_impl();
}
@ -267,53 +264,16 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
m_isInitialized = false;
m_numeric = 0;
m_symbolic = 0;
m_outerIndexPtr = 0;
m_innerIndexPtr = 0;
m_valuePtr = 0;
m_extractedDataAreDirty = true;
}
template<typename InputMatrixType>
void grapInput_impl(const InputMatrixType& mat, internal::true_type)
{
m_copyMatrix.resize(mat.rows(), mat.cols());
if( ((MatrixType::Flags&RowMajorBit)==RowMajorBit) || sizeof(typename MatrixType::StorageIndex)!=sizeof(int) || !mat.isCompressed() )
{
// non supported input -> copy
m_copyMatrix = mat;
m_outerIndexPtr = m_copyMatrix.outerIndexPtr();
m_innerIndexPtr = m_copyMatrix.innerIndexPtr();
m_valuePtr = m_copyMatrix.valuePtr();
}
else
{
m_outerIndexPtr = mat.outerIndexPtr();
m_innerIndexPtr = mat.innerIndexPtr();
m_valuePtr = mat.valuePtr();
}
}
template<typename InputMatrixType>
void grapInput_impl(const InputMatrixType& mat, internal::false_type)
{
m_copyMatrix = mat;
m_outerIndexPtr = m_copyMatrix.outerIndexPtr();
m_innerIndexPtr = m_copyMatrix.innerIndexPtr();
m_valuePtr = m_copyMatrix.valuePtr();
}
template<typename InputMatrixType>
void grapInput(const InputMatrixType& mat)
{
grapInput_impl(mat, internal::umfpack_helper_is_sparse_plain<InputMatrixType>());
}
void analyzePattern_impl()
{
int errorCode = 0;
errorCode = umfpack_symbolic(internal::convert_index<int>(m_copyMatrix.rows()),
internal::convert_index<int>(m_copyMatrix.cols()),
m_outerIndexPtr, m_innerIndexPtr, m_valuePtr, &m_symbolic, 0, 0);
errorCode = umfpack_symbolic(internal::convert_index<int>(mp_matrix.rows()),
internal::convert_index<int>(mp_matrix.cols()),
mp_matrix.outerIndexPtr(), mp_matrix.innerIndexPtr(), mp_matrix.valuePtr(),
&m_symbolic, 0, 0);
m_isInitialized = true;
m_info = errorCode ? InvalidInput : Success;
@ -325,7 +285,7 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
void factorize_impl()
{
int errorCode;
errorCode = umfpack_numeric(m_outerIndexPtr, m_innerIndexPtr, m_valuePtr,
errorCode = umfpack_numeric(mp_matrix.outerIndexPtr(), mp_matrix.innerIndexPtr(), mp_matrix.valuePtr(),
m_symbolic, &m_numeric, 0, 0);
m_info = errorCode ? NumericalIssue : Success;
@ -333,16 +293,31 @@ class UmfPackLU : public SparseSolverBase<UmfPackLU<_MatrixType> >
m_extractedDataAreDirty = true;
}
template<typename MatrixDerived>
void grab(const EigenBase<MatrixDerived> &A)
{
mp_matrix.~UmfpackMatrixRef();
::new (&mp_matrix) UmfpackMatrixRef(A.derived());
}
void grab(const UmfpackMatrixRef &A)
{
if(&(A.derived()) != &mp_matrix)
{
mp_matrix.~UmfpackMatrixRef();
::new (&mp_matrix) UmfpackMatrixRef(A);
}
}
// cached data to reduce reallocation, etc.
mutable LUMatrixType m_l;
mutable LUMatrixType m_u;
mutable IntColVectorType m_p;
mutable IntRowVectorType m_q;
UmfpackMatrixType m_copyMatrix;
const Scalar* m_valuePtr;
const int* m_outerIndexPtr;
const int* m_innerIndexPtr;
UmfpackMatrixType m_dummy;
UmfpackMatrixRef mp_matrix;
void* m_numeric;
void* m_symbolic;
@ -414,7 +389,7 @@ bool UmfPackLU<MatrixType>::_solve_impl(const MatrixBase<BDerived> &b, MatrixBas
if(x.innerStride()==1)
x_ptr = &x.col(j).coeffRef(0);
errorCode = umfpack_solve(UMFPACK_A,
m_outerIndexPtr, m_innerIndexPtr, m_valuePtr,
mp_matrix.outerIndexPtr(), mp_matrix.innerIndexPtr(), mp_matrix.valuePtr(),
x_ptr, &b.const_cast_derived().col(j).coeffRef(0), m_numeric, 0, 0);
if(x.innerStride()!=1)
x.col(j) = x_tmp;