Developer Reference

Contents

cblas_?dotc

Computes a dot product of a conjugated vector with another vector.

Syntax

void
cblas_cdotc_sub
(
const
MKL_INT
n
,
const
void
*x
,
const
MKL_INT
incx
,
const
void
*y
,
const
MKL_INT
incy
,
void
*dotc
);
void
cblas_zdotc_sub
(
const
MKL_INT
n
,
const
void
*x
,
const
MKL_INT
incx
,
const
void
*y
,
const
MKL_INT
incy
,
void
*dotc
);
Include Files
  • mkl.h
Description
The
?dotc
routines perform a vector-vector operation defined as:
Equation
where
x
i
and
y
i
are elements of vectors
x
and
y
.
Input Parameters
n
Specifies the number of elements in vectors
x
and
y
.
x
Array, size at least
(1 + (
n
-1)*abs(
incx
))
.
incx
Specifies the increment for the elements of
x
.
y
Array, size at least
(1 + (
n
-1)*abs(
incy
))
.
incy
Specifies the increment for the elements of
y
.
Output Parameters
dotc
Contains the result of the dot product of the conjugated
x
and unconjugated
y
, if
n
is positive. Otherwise, it contains
0
.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804