Developer Reference

  • 2020.2
  • 07/15/2020
  • Public Content
Contents

mkl_cspblas_?bsrtrsv

Triangular solver with simplified interface for a sparse matrix stored in the BSR format (3-array variation) with zero-based indexing (deprecated).

Syntax

call mkl_cspblas_sbsrtrsv
(
uplo
,
transa
,
diag
,
m
,
lb
,
a
,
ia
,
ja
,
x
,
y
)
call mkl_cspblas_dbsrtrsv
(
uplo
,
transa
,
diag
,
m
,
lb
,
a
,
ia
,
ja
,
x
,
y
)
call mkl_cspblas_cbsrtrsv
(
uplo
,
transa
,
diag
,
m
,
lb
,
a
,
ia
,
ja
,
x
,
y
)
call mkl_cspblas_zbsrtrsv
(
uplo
,
transa
,
diag
,
m
,
lb
,
a
,
ia
,
ja
,
x
,
y
)
Include Files
  • mkl.fi
Description
This routine is deprecated. Use mkl_sparse_?_trsvfrom the
Intel® MKL
Inspector-executor Sparse BLAS interface instead.
The
mkl_cspblas_?bsrtrsv
routine solves a system of linear equations with matrix-vector operations for a sparse matrix stored in the BSR format (3-array variation) with zero-based indexing:
y
:=
A
*
x
or
y
:=
A
T
*
x
,
where:
x
and
y
are vectors,
A
is a sparse upper or lower triangular matrix with unit or non-unit main diagonal,
A
T
is the transpose of
A
.
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 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.
transa
CHARACTER*1
.
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
.
diag
CHARACTER*1
.
Specifies whether matrix
A
is unit triangular or not.
If
diag
=
'U'
or
'u'
,
A
is unit triangular.
If
diag
=
'N'
or
'n'
,
A
is not unit triangular.
m
INTEGER
.
Number of block rows of the matrix
A
.
lb
INTEGER
.
Size of the block in the matrix
A
.
a
REAL
for
mkl_cspblas_sbsrtrsv
.
DOUBLE PRECISION
for
mkl_cspblas_dbsrtrsv
.
COMPLEX
for
mkl_cspblas_cbsrtrsv
.
DOUBLE COMPLEX
for
mkl_cspblas_zbsrtrsv
.