Developer Reference

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

mkl_?skymm

Computes matrix-matrix product of a sparse matrix stored using the skyline storage scheme with one-based indexing (deprecated).

Syntax

call mkl_sskymm
(
transa
,
m
,
n
,
k
,
alpha
,
matdescra
,
val
,
pntr
,
b
,
ldb
,
beta
,
c
,
ldc
)
call mkl_dskymm
(
transa
,
m
,
n
,
k
,
alpha
,
matdescra
,
val
,
pntr
,
b
,
ldb
,
beta
,
c
,
ldc
)
call mkl_cskymm
(
transa
,
m
,
n
,
k
,
alpha
,
matdescra
,
val
,
pntr
,
b
,
ldb
,
beta
,
c
,
ldc
)
call mkl_zskymm
(
transa
,
m
,
n
,
k
,
alpha
,
matdescra
,
val
,
pntr
,
b
,
ldb
,
beta
,
c
,
ldc
)
Include Files
  • mkl.fi
Description
This routine is deprecated. Use Use mkl_sparse_?_mm from the
Intel® MKL
Inspector-executor Sparse BLAS interface instead.
The
mkl_?skymm
routine performs a matrix-matrix operation defined as
C
:=
alpha
*
A
*
B
+
beta
*
C
or
C
:=
alpha
*
A
T
*
B
+
beta
*
C
,
or
C
:=
alpha
*
A
H
*
B
+
beta
*
C
,
where:
alpha
and
beta
are scalars,
B
and
C
are dense matrices,
A
is an
m
-by-
k
sparse matrix in the skyline storage format,
A
T
is the transpose of
A
, and
A
H
is the conjugate transpose of
A
.
This routine supports only one-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.
transa
CHARACTER*1
.
Specifies the operation.
If
transa
=
'N'
or
'n'
, then
C
:=
alpha
*
A
*
B
+
beta
*
C