Developer Reference

  • 2020.2
  • 07/15/2020
  • 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

call mkl_cspblas_scoosymv
(
uplo
,
m
,
val
,
rowind
,
colind
,
nnz
,
x
,
y
)
call mkl_cspblas_dcoosymv
(
uplo
,
m
,
val
,
rowind
,
colind
,
nnz
,
x
,
y
)
call mkl_cspblas_ccoosymv
(
uplo
,
m
,
val
,
rowind
,
colind
,
nnz
,
x
,
y
)
call mkl_cspblas_zcoosymv
(
uplo
,
m
,
val
,
rowind
,
colind
,
nnz
,
x
,
y
)
Include Files
  • mkl.fi
Description
This routine is deprecated. Use mkl_sparse_?_mvfrom the
Intel® MKL
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
Parameter descriptions are common for all implemented interfaces with the exception of data types that refer here to the FORTRAN 77 standard types. Data types specific to the different interfaces are described in the section
"Interfaces"
below.
uplo
CHARACTER*1
.
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
INTEGER
.
Number of rows of the matrix
A
.
val
REAL
for
mkl_cspblas_scoosymv
.
DOUBLE PRECISION
for
mkl_cspblas_dcoosymv
.
COMPLEX
for
mkl_cspblas_ccoosymv
.
DOUBLE COMPLEX
for
mkl_cspblas_zcoosymv
.
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
INTEGER
.
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
INTEGER
.
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
INTEGER
.
Specifies the number of non-zero element of the matrix
A
.
Refer to
nnz
description in Coordinate Format for more details.
x
REAL
for
mkl_cspblas_scoosymv
.
DOUBLE PRECISION
for
mkl_cspblas_dcoosymv
.
COMPLEX
for
mkl_cspblas_ccoosymv
.
DOUBLE COMPLEX
for
mkl_cspblas_zcoosymv
.
Array, size is
m
.
On entry, the array
x
must contain the vector
x
.