Epetra_LAPACK: The Epetra LAPACK Wrapper Class. More...

#include <Epetra_LAPACK.h>

Inheritance diagram for Epetra_LAPACK:

Public Member Functions
Constructors/destructors
	Epetra_LAPACK (void)
	Epetra_LAPACK Constructor. More...

	Epetra_LAPACK (const Epetra_LAPACK &LAPACK)
	Epetra_LAPACK Copy Constructor. More...

virtual	~Epetra_LAPACK (void)
	Epetra_LAPACK Destructor.

Symmetric Positive Definite linear system routines
void	POTRF (const char UPLO, const int N, float A, const int LDA, int INFO) const
	Epetra_LAPACK factorization for positive definite matrix (SPOTRF)

void	POTRF (const char UPLO, const int N, double A, const int LDA, int INFO) const
	Epetra_LAPACK factorization for positive definite matrix (DPOTRF)

void	POTRS (const char UPLO, const int N, const int NRHS, const float A, const int LDA, float X, const int LDX, int *INFO) const
	Epetra_LAPACK solve (after factorization) for positive definite matrix (SPOTRS)

void	POTRS (const char UPLO, const int N, const int NRHS, const double A, const int LDA, double X, const int LDX, int *INFO) const
	Epetra_LAPACK solve (after factorization) for positive definite matrix (DPOTRS)

void	POTRI (const char UPLO, const int N, float A, const int LDA, int INFO) const
	Epetra_LAPACK inversion for positive definite matrix (SPOTRI)

void	POTRI (const char UPLO, const int N, double A, const int LDA, int INFO) const
	Epetra_LAPACK inversion for positive definite matrix (DPOTRI)

void	POCON (const char UPLO, const int N, const float A, const int LDA, const float ANORM, float RCOND, float WORK, int IWORK, int *INFO) const
	Epetra_LAPACK condition number estimator for positive definite matrix (SPOCON)

void	POCON (const char UPLO, const int N, const double A, const int LDA, const double ANORM, double RCOND, double WORK, int IWORK, int *INFO) const
	Epetra_LAPACK condition number estimator for positive definite matrix (DPOCON)

void	POSV (const char UPLO, const int N, const int NRHS, float A, const int LDA, float X, const int LDX, int *INFO) const
	Epetra_LAPACK factor and solve for positive definite matrix (SPOSV)

void	POSV (const char UPLO, const int N, const int NRHS, double A, const int LDA, double X, const int LDX, int *INFO) const
	Epetra_LAPACK factor and solve for positive definite matrix (DPOSV)

void	POEQU (const int N, const float A, const int LDA, float S, float SCOND, float AMAX, int *INFO) const
	Epetra_LAPACK equilibration for positive definite matrix (SPOEQU)

void	POEQU (const int N, const double A, const int LDA, double S, double SCOND, double AMAX, int *INFO) const
	Epetra_LAPACK equilibration for positive definite matrix (DPOEQU)

void	PORFS (const char UPLO, const int N, const int NRHS, const float A, const int LDA, const float AF, const int LDAF, const float B, const int LDB, float X, const int LDX, float FERR, float BERR, float WORK, int IWORK, int *INFO) const
	Epetra_LAPACK solve driver for positive definite matrix (SPOSVX)

void	PORFS (const char UPLO, const int N, const int NRHS, const double A, const int LDA, const double AF, const int LDAF, const double B, const int LDB, double X, const int LDX, double FERR, double BERR, double WORK, int IWORK, int *INFO) const
	Epetra_LAPACK solve driver for positive definite matrix (DPOSVX)

void	POSVX (const char FACT, const char UPLO, const int N, const int NRHS, float A, const int LDA, float AF, const int LDAF, const char EQUED, float S, float B, const int LDB, float X, const int LDX, float RCOND, float FERR, float BERR, float WORK, int IWORK, int *INFO) const
	Epetra_LAPACK solve driver for positive definite matrix (SPOSVX)

void	POSVX (const char FACT, const char UPLO, const int N, const int NRHS, double A, const int LDA, double AF, const int LDAF, const char EQUED, double S, double B, const int LDB, double X, const int LDX, double RCOND, double FERR, double BERR, double WORK, int IWORK, int *INFO) const
	Epetra_LAPACK solve driver for positive definite matrix (DPOSVX)

General linear system routines
void	GELS (const char TRANS, const int M, const int N, const int NRHS, double A, const int LDA, double B, const int LDB, double WORK, const int LWORK, int INFO) const
	Epetra_LAPACK simple driver to solve least-squares systems.

void	GETRF (const int M, const int N, float A, const int LDA, int IPIV, int *INFO) const
	Epetra_LAPACK factorization for general matrix (SGETRF)

void	GETRF (const int M, const int N, double A, const int LDA, int IPIV, int *INFO) const
	Epetra_LAPACK factorization for general matrix (DGETRF)

void	GEQRF (const int M, const int N, float A, const int LDA, float TAU, float WORK, const int lwork, int INFO) const
	Epetra_LAPACK QR factorization for general matrix (SGEQRF)

void	GEQRF (const int M, const int N, double A, const int LDA, double TAU, double WORK, const int lwork, int INFO) const
	Epetra_LAPACK factorization for general matrix (DGEQRF)

void	GETRS (const char TRANS, const int N, const int NRHS, const float A, const int LDA, const int IPIV, float X, const int LDX, int INFO) const
	Epetra_LAPACK solve (after factorization) for general matrix (SGETRS)

void	GETRS (const char TRANS, const int N, const int NRHS, const double A, const int LDA, const int IPIV, double X, const int LDX, int INFO) const
	Epetra_LAPACK solve (after factorization) for general matrix (DGETRS)

void	GETRI (const int N, float A, const int LDA, int IPIV, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK inversion for general matrix (SGETRI)

void	GETRI (const int N, double A, const int LDA, int IPIV, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK inversion for general matrix (DGETRI)

void	GECON (const char NORM, const int N, const float A, const int LDA, const float ANORM, float RCOND, float WORK, int IWORK, int *INFO) const
	Epetra_LAPACK condition number estimator for general matrix (SGECON)

void	GECON (const char NORM, const int N, const double A, const int LDA, const double ANORM, double RCOND, double WORK, int IWORK, int *INFO) const
	Epetra_LAPACK condition number estimator for general matrix (DGECON)

void	GESV (const int N, const int NRHS, float A, const int LDA, int IPIV, float X, const int LDX, int INFO) const
	Epetra_LAPACK factor and solve for general matrix (SGESV)

void	GESV (const int N, const int NRHS, double A, const int LDA, int IPIV, double X, const int LDX, int INFO) const
	Epetra_LAPACK factor and solve for general matrix (DGESV)

void	GEEQU (const int M, const int N, const float A, const int LDA, float R, float C, float ROWCND, float COLCND, float AMAX, int *INFO) const
	Epetra_LAPACK equilibration for general matrix (SGEEQU)

void	GEEQU (const int M, const int N, const double A, const int LDA, double R, double C, double ROWCND, double COLCND, double AMAX, int *INFO) const
	Epetra_LAPACK equilibration for general matrix (DGEEQU)

void	GERFS (const char TRANS, const int N, const int NRHS, const float A, const int LDA, const float AF, const int LDAF, const int IPIV, const float B, const int LDB, float X, const int LDX, float FERR, float BERR, float WORK, int IWORK, int INFO) const
	Epetra_LAPACK Refine solution (GERFS)

void	GERFS (const char TRANS, const int N, const int NRHS, const double A, const int LDA, const double AF, const int LDAF, const int IPIV, const double B, const int LDB, double X, const int LDX, double FERR, double BERR, double WORK, int IWORK, int INFO) const
	Epetra_LAPACK Refine solution (GERFS)

void	GESVX (const char FACT, const char TRANS, const int N, const int NRHS, float A, const int LDA, float AF, const int LDAF, int IPIV, const char EQUED, float R, float C, float B, const int LDB, float X, const int LDX, float RCOND, float FERR, float BERR, float WORK, int IWORK, int *INFO) const
	Epetra_LAPACK solve driver for general matrix (SGESVX)

void	GESVX (const char FACT, const char TRANS, const int N, const int NRHS, double A, const int LDA, double AF, const int LDAF, int IPIV, const char EQUED, double R, double C, double B, const int LDB, double X, const int LDX, double RCOND, double FERR, double BERR, double WORK, int IWORK, int *INFO) const
	Epetra_LAPACK solve driver for general matrix (DGESVX)

void	GEHRD (const int N, const int ILO, const int IHI, float A, const int LDA, float TAU, float WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for reduction to Hessenberg form (SGEHRD)

void	GEHRD (const int N, const int ILO, const int IHI, double A, const int LDA, double TAU, double WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for reduction to Hessenberg form (DGEHRD)

Hessenberg routines
void	HSEQR (const char JOB, const char COMPZ, const int N, const int ILO, const int IHI, float H, const int LDH, float WR, float WI, float Z, const int LDZ, float WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for computing the eigenvalues of a real upper Hessenberg matrix (SHSEQR)

void	HSEQR (const char JOB, const char COMPZ, const int N, const int ILO, const int IHI, double H, const int LDH, double WR, double WI, double Z, const int LDZ, double WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for computing the eigenvalues of a real upper Hessenberg matrix (DHSEQR)

Orthogonal matrix routines
void	ORGQR (const int M, const int N, const int K, float A, const int LDA, float TAU, float WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for generating a m x n real matrix Q with orthonormal columns, defined as the product of k elementary reflectors. (SORGQR)

void	ORGQR (const int M, const int N, const int K, double A, const int LDA, double TAU, double WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for generating a m x n real matrix Q with orthonormal columns, defined as the product of k elementary reflectors. (DORGQR)

void	ORGHR (const int N, const int ILO, const int IHI, float A, const int LDA, float TAU, float WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for generating a real orthogonal matrix Q defined by elementary reflectors. (SORGHR)

void	ORGHR (const int N, const int ILO, const int IHI, double A, const int LDA, double TAU, double WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper for generating a real orthogonal matrix Q defined by elementary reflectors. (DORGHR)

void	ORMHR (const char SIDE, const char TRANS, const int M, const int N, const int ILO, const int IHI, const float A, const int LDA, const float TAU, float C, const int LDC, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper for applying an orthogonal matrix in-place (SORMHR)

void	ORMHR (const char SIDE, const char TRANS, const int M, const int N, const int ILO, const int IHI, const double A, const int LDA, const double TAU, double C, const int LDC, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper for applying an orthogonal matrix in-place (DORMHR)

void	LARFT (const char DIRECT, const char STOREV, const int N, const int K, double V, const int LDV, double TAU, double *T, const int LDT) const
	Epetra_LAPACK for forming the triangular factor of a product of elementary Householder reflectors (SLARFT).

void	LARFT (const char DIRECT, const char STOREV, const int N, const int K, float V, const int LDV, float TAU, float *T, const int LDT) const
	Epetra_LAPACK for forming the triangular factor of a product of elementary Householder reflectors (DLARFT).

Triangular matrix routines
void	TREVC (const char SIDE, const char HOWMNY, int SELECT, const int N, const float T, const int LDT, float VL, const int LDVL, float VR, const int LDVR, const int MM, int M, float WORK, int *INFO) const
	Epetra_LAPACK wrapper for computing eigenvectors of a quasi-triangular/triagnular matrix (STREVC) More...

void	TREVC (const char SIDE, const char HOWMNY, int SELECT, const int N, const double T, const int LDT, double VL, const int LDVL, double VR, const int LDVR, const int MM, int M, double WORK, int *INFO) const
	Epetra_LAPACK wrapper for computing eigenvectors of a quasi-triangular/triagnular matrix (DTREVC) More...

void	TREXC (const char COMPQ, const int N, float T, const int LDT, float Q, const int LDQ, int IFST, int ILST, float WORK, int INFO) const
	Epetra_LAPACK wrapper for reordering the real-Schur/Schur factorization of a matrix (STREXC)

void	TREXC (const char COMPQ, const int N, double T, const int LDT, double Q, const int LDQ, int IFST, int ILST, double WORK, int INFO) const
	Epetra_LAPACK wrapper for reordering the real-Schur/Schur factorization of a matrix (DTREXC)

Singular Value Decomposition matrix routines
void	GESVD (const char JOBU, const char JOBVT, const int M, const int N, float A, const int LDA, float S, float U, const int LDU, float VT, const int LDVT, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper for computing the singular value decomposition (SGESVD)

void	GESVD (const char JOBU, const char JOBVT, const int M, const int N, double A, const int LDA, double S, double U, const int LDU, double VT, const int LDVT, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper for computing the singular value decomposition (DGESVD)

void	GGSVD (const char JOBU, const char JOBV, const char JOBQ, const int M, const int N, const int P, int K, int L, double A, const int LDA, double B, const int LDB, double ALPHA, double BETA, double U, const int LDU, double V, const int LDV, double Q, const int LDQ, double WORK, int IWORK, int INFO) const
	Epetra_LAPACK wrapper to compute the generalized singular value decomposition (GSVD) of an M-by-N real matrix A and P-by-N real matrix B.

void	GGSVD (const char JOBU, const char JOBV, const char JOBQ, const int M, const int N, const int P, int K, int L, float A, const int LDA, float B, const int LDB, float ALPHA, float BETA, float U, const int LDU, float V, const int LDV, float Q, const int LDQ, float WORK, int IWORK, int INFO) const
	Epetra_LAPACK wrapper to compute the generalized singular value decomposition (GSVD) of an M-by-N real matrix A and P-by-N real matrix B.

Eigenvalue/Eigenvector routines
void	GEEV (const char JOBVL, const char JOBVR, const int N, double A, const int LDA, double WR, double WI, double VL, const int LDVL, double VR, const int LDVR, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute for an N-by-N real nonsymmetric matrix A, the eigenvalues and, optionally, the left and/or right eigenvectors.

void	GEEV (const char JOBVL, const char JOBVR, const int N, float A, const int LDA, float WR, float WI, float VL, const int LDVL, float VR, const int LDVR, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute for an N-by-N real nonsymmetric matrix A, the eigenvalues and, optionally, the left and/or right eigenvectors.

void	SPEV (const char JOBZ, const char UPLO, const int N, double AP, double W, double Z, int LDZ, double WORK, int *INFO) const
	Epetra_LAPACK wrapper to compute all the eigenvalues and, optionally, eigenvectors of a real symmetric matrix A in packed storage.

void	SPEV (const char JOBZ, const char UPLO, const int N, float AP, float W, float Z, int LDZ, float WORK, int *INFO) const
	Epetra_LAPACK wrapper to compute all the eigenvalues and, optionally, eigenvectors of a real symmetric matrix A in packed storage.

void	SPGV (const int ITYPE, const char JOBZ, const char UPLO, const int N, double AP, double BP, double W, double Z, const int LDZ, double WORK, int INFO) const
	Epetra_LAPACK wrapper to compute all the eigenvalues and, optionally, the eigenvectors of a real generalized symmetric-definite eigenproblem, of the form Ax=(lambda)Bx, ABx=(lambda)x, or BAx=(lambda)x.

void	SPGV (const int ITYPE, const char JOBZ, const char UPLO, const int N, float AP, float BP, float W, float Z, const int LDZ, float WORK, int INFO) const
	Epetra_LAPACK wrapper to compute all the eigenvalues and, optionally, the eigenvectors of a real generalized symmetric-definite eigenproblem, of the form Ax=(lambda)Bx, ABx=(lambda)x, or BAx=(lambda)x.

void	SYEV (const char JOBZ, const char UPLO, const int N, double A, const int LDA, double W, double WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper to compute all eigenvalues and, optionally, eigenvectors of a real symmetric matrix A.

void	SYEV (const char JOBZ, const char UPLO, const int N, float A, const int LDA, float W, float WORK, const int LWORK, int INFO) const
	Epetra_LAPACK wrapper to compute all eigenvalues and, optionally, eigenvectors of a real symmetric matrix A.

void	SYEVD (const char JOBZ, const char UPLO, const int N, double A, const int LDA, double W, double WORK, const int LWORK, int IWORK, const int LIWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute all eigenvalues and, optionally, eigenvectors of a real symmetric matrix A.

void	SYEVD (const char JOBZ, const char UPLO, const int N, float A, const int LDA, float W, float WORK, const int LWORK, int IWORK, const int LIWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute all eigenvalues and, optionally, eigenvectors of a real symmetric matrix A.

void	SYEVX (const char JOBZ, const char RANGE, const char UPLO, const int N, double A, const int LDA, const double VL, const double VU, const int IL, const int IU, const double ABSTOL, int M, double W, double Z, const int LDZ, double WORK, const int LWORK, int IWORK, int IFAIL, int INFO) const
	Epetra_LAPACK wrapper to compute selected eigenvalues and, optionally, eigenvectors of a real symmetric matrix A.

void	SYEVX (const char JOBZ, const char RANGE, const char UPLO, const int N, float A, const int LDA, const float VL, const float VU, const int IL, const int IU, const float ABSTOL, int M, float W, float Z, const int LDZ, float WORK, const int LWORK, int IWORK, int IFAIL, int INFO) const
	Epetra_LAPACK wrapper to compute selected eigenvalues and, optionally, eigenvectors of a real symmetric matrix A.

void	SYGV (const int ITYPE, const char JOBZ, const char UPLO, const int N, double A, const int LDA, double B, const int LDB, double W, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute all the eigenvalues, and optionally, the eigenvectors of a real generalized symmetric-definite eigenproblem, of the form Ax=(lambda)Bx, ABx=(lambda)x, or BAx=(lambda)x.

void	SYGV (const int ITYPE, const char JOBZ, const char UPLO, const int N, float A, const int LDA, float B, const int LDB, float W, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute all the eigenvalues, and optionally, the eigenvectors of a real generalized symmetric-definite eigenproblem, of the form Ax=(lambda)Bx, ABx=(lambda)x, or BAx=(lambda)x.

void	SYGVX (const int ITYPE, const char JOBZ, const char RANGE, const char UPLO, const int N, double A, const int LDA, double B, const int LDB, const double VL, const double VU, const int IL, const int IU, const double ABSTOL, int M, double W, double Z, const int LDZ, double WORK, const int LWORK, int IWORK, int IFAIL, int *INFO) const
	Epetra_LAPACK wrapper to compute selected eigenvalues, and optionally, eigenvectors of a real generalized symmetric-definite eigenproblem, of the form Ax=(lambda)Bx, ABx=(lambda)x, or BAx=(lambda)x.

void	SYGVX (const int ITYPE, const char JOBZ, const char RANGE, const char UPLO, const int N, float A, const int LDA, float B, const int LDB, const float VL, const float VU, const int IL, const int IU, const float ABSTOL, int M, float W, float Z, const int LDZ, float WORK, const int LWORK, int IWORK, int IFAIL, int *INFO) const
	Epetra_LAPACK wrapper to compute selected eigenvalues, and optionally, eigenvectors of a real generalized symmetric-definite eigenproblem, of the form Ax=(lambda)Bx, ABx=(lambda)x, or BAx=(lambda)x.

void	SYEVR (const char JOBZ, const char RANGE, const char UPLO, const int N, double A, const int LDA, const double VL, const double VU, const int IL, const int IU, const double ABSTOL, int M, double W, double Z, const int LDZ, int ISUPPZ, double WORK, const int LWORK, int IWORK, const int LIWORK, int INFO) const
	Epetra_LAPACK wrapper to compute selected eigenvalues and, optionally, eigenvectors of a real symmetric matrix T.

void	SYEVR (const char JOBZ, const char RANGE, const char UPLO, const int N, float A, const int LDA, const float VL, const float VU, const int IL, const int IU, const float ABSTOL, int M, float W, float Z, const int LDZ, int ISUPPZ, float WORK, const int LWORK, int IWORK, const int LIWORK, int INFO) const
	Epetra_LAPACK wrapper to compute selected eigenvalues and, optionally, eigenvectors of a real symmetric matrix T.

void	GEEVX (const char BALANC, const char JOBVL, const char JOBVR, const char SENSE, const int N, double A, const int LDA, double WR, double WI, double VL, const int LDVL, double VR, const int LDVR, int ILO, int IHI, double SCALE, double ABNRM, double RCONDE, double RCONDV, double WORK, const int LWORK, int IWORK, int INFO) const
	Epetra_LAPACK wrapper to compute for an N-by-N real nonsymmetric matrix A, the eigenvalues and, optionally, the left and/or right eigenvectors.

void	GEEVX (const char BALANC, const char JOBVL, const char JOBVR, const char SENSE, const int N, float A, const int LDA, float WR, float WI, float VL, const int LDVL, float VR, const int LDVR, int ILO, int IHI, float SCALE, float ABNRM, float RCONDE, float RCONDV, float WORK, const int LWORK, int IWORK, int INFO) const
	Epetra_LAPACK wrapper to compute for an N-by-N real nonsymmetric matrix A, the eigenvalues and, optionally, the left and/or right eigenvectors.

void	GESDD (const char JOBZ, const int M, const int N, double A, const int LDA, double S, double U, const int LDU, double VT, const int LDVT, double WORK, const int LWORK, int IWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute the singular value decomposition (SVD) of a real M-by-N matrix A, optionally computing the left and right singular vectors.

void	GESDD (const char JOBZ, const int M, const int N, float A, const int LDA, float S, float U, const int LDU, float VT, const int LDVT, float WORK, const int LWORK, int IWORK, int *INFO) const
	Epetra_LAPACK wrapper to.

void	GGEV (const char JOBVL, const char JOBVR, const int N, double A, const int LDA, double B, const int LDB, double ALPHAR, double ALPHAI, double BETA, double VL, const int LDVL, double VR, const int LDVR, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute for a pair of N-by-N real nonsymmetric matrices (A,B) the generalized eigenvalues, and optionally, the left and/or right generalized eigenvectors.

void	GGEV (const char JOBVL, const char JOBVR, const int N, float A, const int LDA, float B, const int LDB, float ALPHAR, float ALPHAI, float BETA, float VL, const int LDVL, float VR, const int LDVR, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to compute for a pair of N-by-N real nonsymmetric matrices (A,B) the generalized eigenvalues, and optionally, the left and/or right generalized eigenvectors.

Linear Least Squares
void	GGLSE (const int M, const int N, const int P, double A, const int LDA, double B, const int LDB, double C, double D, double X, double WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to solve the linear equality-constrained least squares (LSE) problem.

void	GGLSE (const int M, const int N, const int P, float A, const int LDA, float B, const int LDB, float C, float D, float X, float WORK, const int LWORK, int *INFO) const
	Epetra_LAPACK wrapper to solve the linear equality-constrained least squares (LSE) problem.

Machine characteristics routines
void	LAMCH (const char CMACH, float &T) const
	Epetra_LAPACK wrapper for DLAMCH routine. On out, T holds machine double precision floating point characteristics. This information is returned by the Lapack routine.

void	LAMCH (const char CMACH, double &T) const
	Epetra_LAPACK wrapper for SLAMCH routine. On out, T holds machine single precision floating point characteristics. This information is returned by the Lapack routine.

Triangular solve
void	TRTRS (const char UPLO, const char TRANS, const char DIAG, const int N, const int NRHS, const float A, const int LDA, float B, const int LDB, int *INFO) const
	Epetra_LAPACK wrapper for TRTRS routine.

void	TRTRS (const char UPLO, const char TRANS, const char DIAG, const int N, const int NRHS, const double A, const int LDA, double B, const int LDB, int *INFO) const
	Epetra_LAPACK wrapper for TRTRS routine.

Detailed Description

Epetra_LAPACK: The Epetra LAPACK Wrapper Class.

The Epetra_LAPACK class is a wrapper that encapsulates LAPACK (Linear Algebra Package). LAPACK provides portable, high- performance implementations of linear, eigen, SVD, etc solvers.

The standard LAPACK interface is Fortran-specific. Unfortunately, the interface between C++ and Fortran is not standard across all computer platforms. The Epetra_LAPACK class provides C++ wrappers for the LAPACK kernels in order to insulate the rest of Epetra from the details of C++ to Fortran translation. A Epetra_LAPACK object is essentially nothing, but allows access to the LAPACK wrapper functions.

Epetra_LAPACK is a serial interface only. This is appropriate since the standard LAPACK are only specified for serial execution (or shared memory parallel).

Constructor & Destructor Documentation

Epetra_LAPACK::Epetra_LAPACK ( void )

inline

Epetra_LAPACK Constructor.

Builds an instance of a serial LAPACK object.

Epetra_LAPACK::Epetra_LAPACK ( const Epetra_LAPACK & LAPACK )

inline

Epetra_LAPACK Copy Constructor.

Makes an exact copy of an existing Epetra_LAPACK instance.

Member Function Documentation

void Epetra_LAPACK::TREVC	(	const char	SIDE,
		const char	HOWMNY,
		int *	SELECT,
		const int	N,
		const float *	T,
		const int	LDT,
		float *	VL,
		const int	LDVL,
		float *	VR,
		const int	LDVR,
		const int	MM,
		int *	M,
		float *	WORK,
		int *	INFO
	)		const

Epetra_LAPACK wrapper for computing eigenvectors of a quasi-triangular/triagnular matrix (STREVC)

Warning: HOWMNY = 'S" is not supported.

void Epetra_LAPACK::TREVC	(	const char	SIDE,
		const char	HOWMNY,
		int *	SELECT,
		const int	N,
		const double *	T,
		const int	LDT,
		double *	VL,
		const int	LDVL,
		double *	VR,
		const int	LDVR,
		const int	MM,
		int *	M,
		double *	WORK,
		int *	INFO
	)		const

Epetra_LAPACK wrapper for computing eigenvectors of a quasi-triangular/triagnular matrix (DTREVC)

Warning: HOWMNY = 'S" is not supported.

The documentation for this class was generated from the following file:

Epetra_LAPACK.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation