lapack_dsdp.c File Reference

interface methods for eigenvector computation and matrix multiplication using standard LAPACK and BLAS More...

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Macros
#define	BMS_CALL(x)
#define	SCIP_RealTOINT(x)   ((int) (x + 0.5))

Functions
Functions
SCIP_RETCODE	SCIPlapackMatrixVectorMult (int nrows, int ncols, SCIP_Real *matrix, SCIP_Real *vector, SCIP_Real *result)

Detailed Description

interface methods for eigenvector computation and matrix multiplication using standard LAPACK and BLAS

Author

Sonja Mars

Lars Schewe

Tristan Gally

Definition in file lapack_dsdp.c.

Macro Definition Documentation

#define BMS_CALL

(

x

)

Value:

do                                                                                      \
                      {                                                                                       \
                          if( NULL == (x) )                                                                   \
                          {                                                                                   \
                             SCIPerrorMessage("No memory in function call\n");                                \
                             return SCIP_NOMEMORY;                                                            \
                          }                                                                                   \
                      }                                                                                       \
                      while( FALSE )

Checks if a BMSallocMemory-call was successfull, otherwise returns SCIP_NOMEMRY

Definition at line 56 of file lapack_dsdp.c.

#define SCIP_RealTOINT

(

x

)

((int) (x + 0.5))

transforms a SCIP_Real (that should be integer, but might be off by some numerical error) to an integer by adding an epsilon and rounding down

Definition at line 67 of file lapack_dsdp.c.

Function Documentation

SCIP_RETCODE SCIPlapackMatrixVectorMult	(	int	nrows,
		int	ncols,
		SCIP_Real *	matrix,
		SCIP_Real *	vector,
		SCIP_Real *	result
	)

performs matrix-vector-multiplication using BLAS

Parameters

nrows	number of rows in matrix
ncols	number of cols in matrix
matrix	the matrix we want to multiply
vector	vector we want to multiply with the matrix
result	pointer to store the resulting vector

Definition at line 215 of file lapack_dsdp.c.

References F77_FUNC.