## Developer Reference

• 098
• 03/30/2020
• Public Content
Contents

# mkl_?csrsm

Solves a system of linear matrix equations for a sparse matrix in the CSR format (deprecated).

## Syntax

Include Files
• mkl.fi
Description
This routine is deprecated. Use mkl_sparse_?_trsm from the
Intel® MKL
The
mkl_?csrsm
routine solves a system of linear equations with matrix-matrix operations for a sparse matrix in the CSR format:
```

C

:=

alpha

*inv(

A

)*

B```
or
```

C

:=

alpha

*inv(

A

T

)*

B

,```
where:
alpha
is scalar,
B
and
C
are dense matrices,
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 a CSR format both with one-based indexing and zero-based indexing.
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 system of linear equations.
If
transa
=
'N'
or
'n'
, then
C
:=
alpha
*inv(
A
)*
B
If
transa
=
'T'
or
't'
or
'C'
or
'c'
, then
C
:=
alpha
*inv(
A
T
)*
B
,
m
INTEGER
.
Number of columns of the matrix
A
.
n
INTEGER
.
Number of columns of the matrix
C
.
alpha
REAL
for
mkl_scsrsm
.
DOUBLE PRECISION
for
mkl_dcsrsm
.
COMPLEX
for
mkl_ccsrsm
.
DOUBLE COMPLEX
for
mkl_zcsrsm
.
Specifies the scalar
alpha
.
matdescra
CHARACTER
.
Array of six elements, specifies properties of the matrix used for operation. Only first four array elements are used, their possible values are given in
Table “Possible Values of the Parameter
matdescra
(