Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 0.9
  • 09/09/2020
  • Public Content
Contents

mkl_cspblas_?coosymv

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

Syntax

void
mkl_cspblas_scoosymv
(
const
char
*uplo
,
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_dcoosymv
(
const
char
*uplo
,
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_ccoosymv
(
const
char
*uplo
,
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_zcoosymv
(
const
char
*uplo
,
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_?coosymv
 routine performs a matrix-vector operation defined as 
y := A*x
where:
x
 and
y
 are vectors,
A
 is an upper or lower triangle of the symmetrical sparse matrix in the coordinate format with zero-based indexing.
This routine supports only zero-based indexing of the input arrays.
Input Parameters
uplo
Specifies whether the upper or low triangle of the matrix
A
 is used.
If
uplo
 =
'U'
 or
'u'
, then the upper triangle of the matrix
A
 is used.
If
uplo
 =
'L'
 or
'l'
, then the low triangle of the matrix
A
 is used.
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

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804