Contents

# mkl_?omatcopy

Performs scaling and out-place transposition/copying of matrices.

## Syntax

Include Files
• mkl.h
Description
The
mkl_?omatcopy
routine performs scaling and out-of-place transposition/copying of matrices. A transposition operation can be a normal matrix copy, a transposition, a conjugate transposition, or just a conjugation. The operation is defined as follows:
B
:=
alpha
*op(
A
)
Different arrays must not overlap.
Input Parameters
ordering
Ordering of the matrix storage.
If
ordering
=
'R'
or
'r'
, the ordering is row-major.
If
ordering
=
'C'
or
'c'
, the ordering is column-major.
trans
Parameter that specifies the operation type.
If
trans
=
'N'
or
'n'
,
op(
A
)=
A
and the matrix
A
is assumed unchanged on input.
If
trans
=
'T'
or
't'
, it is assumed that
A
should be transposed.
If
trans
=
'C'
or
'c'
, it is assumed that
A
should be conjugate transposed.
If
trans
=
'R'
or
'r'
, it is assumed that
A
should be only conjugated.
If the data is real, then
trans
=
'R'
is the same as
trans
=
'N'
, and
trans
=
'C'
is the same as
trans
=
'T'
.
rows
The number of rows in matrix
A
(the input matrix).
cols
The number of columns in matrix
A
(the input matrix).
alpha
This parameter scales the input matrix by
alpha
.
a
Input array.
If
ordering
=
'R'
or
'r'
, the size of
a
is
lda
*
rows
.
If
ordering
=
'C'
or
'c'
, the size of
a
is
lda
*
cols
.
lda
If
ordering
=
'R'
or
'r'
,
lda
represents the number of elements in array
a
A
;
lda
must be at least equal to the number of columns of matrix
A
.
If
ordering
=
'C'
or
'c'
,
lda
represents the number of elements in array
a
A
;
lda
must be at least equal to the number of row in matrix
A
.
b
Output array.
If
ordering
=
'R'
or
'r'
;
• If
trans
=
'T'
or
't'
or
'C'
or
'c'
, the size of
b
is
ldb
*
cols
.
• If
trans
=
'N'
or
'n'
or
'R'
or
'r'
, the size of
b
is
ldb
*
rows
.
If
ordering
=
'C'
or
'c'
;
• If
trans
=
'T'
or
't'
or
'C'
or
'c'
, the size of
b
is
ldb
*
rows
.
• If
trans
=
'N'
or
'n'
or
'R'
or
'r'
, the size of
b
is
ldb
*
cols
.
ldb
If
ordering
=
'R'
or
'r'
,
ldb
represents the number of elements in array
b
B
.
• If
trans
=
'T'
or
't'
or
'C'
or
'c'
,
ldb
must be at least equal to
rows
.
• If
trans
=
'N'
or
'n'
or
'R'
or
'r'
,
ldb
must be at least equal to
cols
.
If
ordering
=
'C'
or
'c'
,
ldb
represents the number of elements in array
b
B
.
• If
trans
=
'T'
or
't'
or
'C'
or
'c'
,
ldb
must be at least equal to
cols
.
• If
trans
=
'N'
or
'n'
or
'R'
or
'r'
,
ldb
must be at least equal to
rows
.
Output Parameters
b
Output array.
Contains the destination matrix.
Interfaces

#### Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.