sparse.h File Reference

(2014-04-30 15:38:09 -0400, (build fd32605))

#include <af/array.h>
#include <af/exception.h>

Go to the source code of this file.

Namespaces
	af

Macros
#define	SPARSE(ty)

Enumerations
enum	af_sparse_t { af_csr, af_csc, af_coo }
	Specify which sparse storage type. More...

Functions
AFAPI array	getrow (int nrows, int *rows_idx, array sp)
AFAPI array	getcol (int ncols, int *cols_idx, array sp)
Construct CSR-format sparse matrix from pointers
Parameters [in] row_idx Row indices in CSR format [in] col_idx Column indices in CSR format [in] values Array containing nonzero values [in] nrows Number of rows in the matrix [in] ncols Number of columns in the Matrix [in] nonzero Number of non zero elements [in] src Specify if pointers are from Host (default) or device [in] ngfor The gfor tile size (default 0) Returns sparse nrows-by-ncols array in af_csr format
AFAPI array	sparse (const int *row_idx, const int *col_idx, const float *values, int nrows, int ncols, int nonzero, af_source_t src=afHost, unsigned ngfor=0)
AFAPI array	sparse (const int *row_idx, const int *col_idx, const double *values, int nrows, int ncols, int nonzero, af_source_t src=afHost, unsigned ngfor=0)
AFAPI array	sparse (const int *row_idx, const int *col_idx, const cfloat *values, int nrows, int ncols, int nonzero, af_source_t src=afHost, unsigned ngfor=0)
AFAPI array	sparse (const int *row_idx, const int *col_idx, const cdouble *values, int nrows, int ncols, int nonzero, af_source_t src=afHost, unsigned ngfor=0)
Construct sparse matrix from Dense
Parameters [in] dense Matrix stored as dense Returns out A sparse matrix stored in CSR format
AFAPI array	sparse (array dense)
Construct sparse matrix from arrays
Parameters [in] row_idx row indices [in] col_idx column indices [in] values nonzero values [in] nrows Number of rows (default -1 uses max(row_idx) for COO, row_idx.elements()-1 for CSR) [in] ncols Number of columns (default -1 uses max(J)) [in] format sparse format (default: af_coo) Returns sparse nrows-by-ncols array
AFAPI array	sparse (array &row_idx, array &col_idx, array &values, int nrows=-1, int ncols=-1, af_sparse_t format=af_coo)
Create dense matrix from sparse matrix
Parameters [in] sparse Sparse matrix generated by ArrayFire Returns dense matrix
AFAPI array	dense (array sparse)
Parameters [in] sp The sparse matrix [in] format The required output format [out] I The row indices [out] J The column indices [out] Val The non zero values
AFAPI afError	where (array &I, array &J, array &Val, array sp, af_sparse_t format=af_coo)

Macro Definition Documentation

#define SPARSE

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ty

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