Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 2021.1
  • 12/04/2020
  • Public Content
Contents

mkl_cspblas_?coogemv

Computes matrix - vector product of a sparse general matrix stored in the coordinate format with zero-based indexing (deprecated).

Syntax

void
mkl_cspblas_scoogemv
(
const
char
*transa
,
const
MKL_INT
*m
,
const
float
*val
,
const
MKL_INT
*rowind
,
const
MKL_INT
*colind
,
const
MKL_INT
*nnz
,
const
float
*x
,
float
*y
);
void
mkl_cspblas_dcoogemv
(
const
char
*transa
,
const
MKL_INT
*m
,
const
double
*val
,
const
MKL_INT
*rowind
,
const
MKL_INT
*colind
,
const
MKL_INT
*nnz
,
const
double
*x
,
double
*y
);
void
mkl_cspblas_ccoogemv
(
const
char
*transa
,
const
MKL_INT
*m
,
const
MKL_Complex8
*val
,
const
MKL_INT
*rowind
,
const
MKL_INT
*colind
,
const
MKL_INT
*nnz
,
const
MKL_Complex8
*x
,
MKL_Complex8
*y
);
void
mkl_cspblas_zcoogemv
(
const
char
*transa
,
const
MKL_INT
*m
,
const
MKL_Complex16
*val
,
const
MKL_INT
*rowind
,
const
MKL_INT
*colind
,
const
MKL_INT
*nnz
,
const
MKL_Complex16
*x
,
MKL_Complex16
*y
);
Include Files
  • mkl.h
Description
This routine is deprecated. Use mkl_sparse_?_mvfrom the
Intel® oneAPI Math Kernel Library
 Inspector-executor Sparse BLAS interface instead.
The
mkl_cspblas_dcoogemv
 routine performs a matrix-vector operation defined as 
y := A*x
or 
y := A
T
*x,
where:
x
 and
y
 are vectors,
A
 is an
m
-by-
m
 sparse square matrix in the coordinate format with zero-based indexing,
A
T
 is the transpose of
A
.
This routine supports only zero-based indexing of the input arrays.
Input Parameters
transa
Specifies the operation.
If
transa
 =
'N'
 or
'n'
, then the matrix-vector product is computed as
y
 :=
A
*
x
If
transa
 =
'T'
 or
't'
 or
'C'
 or
'c'
, then the matrix-vector product is computed as
y
 :=
A
T
*
x
.
m
Number of rows of the matrix
A
.
val
Array of length
nnz
, contains non-zero elements of the matrix
A
 in the arbitrary order.
Refer to
values
 array description in Coordinate Format for more details.
rowind
Array of length
nnz
, contains the row indices for each non-zero element of the matrix
A
.
Refer to
rows
 array description in Coordinate Format for more details.
colind
Array of length
nnz
, contains the column indices for each non-zero element of the matrix
A
. Refer to
columns
 array description in Coordinate Format for more details.
nnz
Specifies the number of non-zero element of the matrix
A
.
Refer to
nnz
 description in Coordinate Format for more details.
x
Array, size is
m
.
On entry, the array
x
 must contain the vector
x
.
Output Parameters
y
Array, size at least
m
.
On exit, the array
y
 must contain the vector
y
.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.