MAGMA 2.9.0
Matrix Algebra for GPU and Multicore Architectures
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\(x^T y\) or \(x^H y\) More...

Functions

magmaFloatComplex magma_cblas_cdotc (magma_int_t n, const magmaFloatComplex *x, magma_int_t incx, const magmaFloatComplex *y, magma_int_t incy)
 Returns dot product of vectors x and y; \( x^H y \).
 
magmaFloatComplex magma_cblas_cdotu (magma_int_t n, const magmaFloatComplex *x, magma_int_t incx, const magmaFloatComplex *y, magma_int_t incy)
 
double magma_cblas_ddot (magma_int_t n, const double *x, magma_int_t incx, const double *y, magma_int_t incy)
 
float magma_cblas_sdot (magma_int_t n, const float *x, magma_int_t incx, const float *y, magma_int_t incy)
 
magmaDoubleComplex magma_cblas_zdotc (magma_int_t n, const magmaDoubleComplex *x, magma_int_t incx, const magmaDoubleComplex *y, magma_int_t incy)
 Returns dot product of vectors x and y; \( x^H y \).
 
magmaDoubleComplex magma_cblas_zdotu (magma_int_t n, const magmaDoubleComplex *x, magma_int_t incx, const magmaDoubleComplex *y, magma_int_t incy)
 
magmaFloatComplex magma_cdotc (magma_int_t n, magmaFloatComplex_const_ptr dx, magma_int_t incx, magmaFloatComplex_const_ptr dy, magma_int_t incy, magma_queue_t queue)
 
magmaFloatComplex magma_cdotu (magma_int_t n, magmaFloatComplex_const_ptr dx, magma_int_t incx, magmaFloatComplex_const_ptr dy, magma_int_t incy, magma_queue_t queue)
 
double magma_ddot (magma_int_t n, magmaDouble_const_ptr dx, magma_int_t incx, magmaDouble_const_ptr dy, magma_int_t incy, magma_queue_t queue)
 
float magma_sdot (magma_int_t n, magmaFloat_const_ptr dx, magma_int_t incx, magmaFloat_const_ptr dy, magma_int_t incy, magma_queue_t queue)
 
magmaDoubleComplex magma_zdotc (magma_int_t n, magmaDoubleComplex_const_ptr dx, magma_int_t incx, magmaDoubleComplex_const_ptr dy, magma_int_t incy, magma_queue_t queue)
 
magmaDoubleComplex magma_zdotu (magma_int_t n, magmaDoubleComplex_const_ptr dx, magma_int_t incx, magmaDoubleComplex_const_ptr dy, magma_int_t incy, magma_queue_t queue)
 

Detailed Description

\(x^T y\) or \(x^H y\)

Function Documentation

◆ magma_cblas_cdotc()

magmaFloatComplex magma_cblas_cdotc ( magma_int_t n,
const magmaFloatComplex * x,
magma_int_t incx,
const magmaFloatComplex * y,
magma_int_t incy )

Returns dot product of vectors x and y; \( x^H y \).

To avoid dependence on CBLAS and incompatability issues between BLAS libraries, MAGMA uses its own implementation, following BLAS reference.

Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]xCOMPLEX array on CPU host. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of x. incx > 0.
[in]yCOMPLEX array on CPU host. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy > 0.

◆ magma_cblas_cdotu()

magmaFloatComplex magma_cblas_cdotu ( magma_int_t n,
const magmaFloatComplex * x,
magma_int_t incx,
const magmaFloatComplex * y,
magma_int_t incy )
Returns
dot product (unconjugated) of vectors x and y; \( x^T y \).

To avoid dependence on CBLAS and incompatability issues between BLAS libraries, MAGMA uses its own implementation, following BLAS reference.

Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]xCOMPLEX array on CPU host. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of x. incx > 0.
[in]yCOMPLEX array on CPU host. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy > 0.

◆ magma_cblas_ddot()

double magma_cblas_ddot ( magma_int_t n,
const double * x,
magma_int_t incx,
const double * y,
magma_int_t incy )
Returns
dot product (unconjugated) of vectors x and y; \( x^T y \).

To avoid dependence on CBLAS and incompatability issues between BLAS libraries, MAGMA uses its own implementation, following BLAS reference.

Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]xDOUBLE PRECISION array on CPU host. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of x. incx > 0.
[in]yDOUBLE PRECISION array on CPU host. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy > 0.

◆ magma_cblas_sdot()

float magma_cblas_sdot ( magma_int_t n,
const float * x,
magma_int_t incx,
const float * y,
magma_int_t incy )
Returns
dot product (unconjugated) of vectors x and y; \( x^T y \).

To avoid dependence on CBLAS and incompatability issues between BLAS libraries, MAGMA uses its own implementation, following BLAS reference.

Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]xREAL array on CPU host. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of x. incx > 0.
[in]yREAL array on CPU host. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy > 0.

◆ magma_cblas_zdotc()

magmaDoubleComplex magma_cblas_zdotc ( magma_int_t n,
const magmaDoubleComplex * x,
magma_int_t incx,
const magmaDoubleComplex * y,
magma_int_t incy )

Returns dot product of vectors x and y; \( x^H y \).

To avoid dependence on CBLAS and incompatability issues between BLAS libraries, MAGMA uses its own implementation, following BLAS reference.

Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]xCOMPLEX_16 array on CPU host. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of x. incx > 0.
[in]yCOMPLEX_16 array on CPU host. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy > 0.

◆ magma_cblas_zdotu()

magmaDoubleComplex magma_cblas_zdotu ( magma_int_t n,
const magmaDoubleComplex * x,
magma_int_t incx,
const magmaDoubleComplex * y,
magma_int_t incy )
Returns
dot product (unconjugated) of vectors x and y; \( x^T y \).

To avoid dependence on CBLAS and incompatability issues between BLAS libraries, MAGMA uses its own implementation, following BLAS reference.

Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]xCOMPLEX_16 array on CPU host. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of x. incx > 0.
[in]yCOMPLEX_16 array on CPU host. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy > 0.

◆ magma_cdotc()

magmaFloatComplex magma_cdotc ( magma_int_t n,
magmaFloatComplex_const_ptr dx,
magma_int_t incx,
magmaFloatComplex_const_ptr dy,
magma_int_t incy,
magma_queue_t queue )
Returns
Dot product of vectors x and y; \( x^H y \).
Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]dxCOMPLEX array on GPU device. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of dx. incx != 0.
[in]dyCOMPLEX array on GPU device. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy != 0.
[in]queuemagma_queue_t Queue to execute in.

◆ magma_cdotu()

magmaFloatComplex magma_cdotu ( magma_int_t n,
magmaFloatComplex_const_ptr dx,
magma_int_t incx,
magmaFloatComplex_const_ptr dy,
magma_int_t incy,
magma_queue_t queue )
Returns
Dot product (unconjugated) of vectors x and y; \( x^T y \).
Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]dxCOMPLEX array on GPU device. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of dx. incx != 0.
[in]dyCOMPLEX array on GPU device. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy != 0.
[in]queuemagma_queue_t Queue to execute in.

◆ magma_ddot()

double magma_ddot ( magma_int_t n,
magmaDouble_const_ptr dx,
magma_int_t incx,
magmaDouble_const_ptr dy,
magma_int_t incy,
magma_queue_t queue )
Returns
Dot product (unconjugated) of vectors x and y; \( x^T y \).
Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]dxDOUBLE PRECISION array on GPU device. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of dx. incx != 0.
[in]dyDOUBLE PRECISION array on GPU device. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy != 0.
[in]queuemagma_queue_t Queue to execute in.

◆ magma_sdot()

float magma_sdot ( magma_int_t n,
magmaFloat_const_ptr dx,
magma_int_t incx,
magmaFloat_const_ptr dy,
magma_int_t incy,
magma_queue_t queue )
Returns
Dot product (unconjugated) of vectors x and y; \( x^T y \).
Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]dxREAL array on GPU device. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of dx. incx != 0.
[in]dyREAL array on GPU device. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy != 0.
[in]queuemagma_queue_t Queue to execute in.

◆ magma_zdotc()

magmaDoubleComplex magma_zdotc ( magma_int_t n,
magmaDoubleComplex_const_ptr dx,
magma_int_t incx,
magmaDoubleComplex_const_ptr dy,
magma_int_t incy,
magma_queue_t queue )
Returns
Dot product of vectors x and y; \( x^H y \).
Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]dxCOMPLEX_16 array on GPU device. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of dx. incx != 0.
[in]dyCOMPLEX_16 array on GPU device. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy != 0.
[in]queuemagma_queue_t Queue to execute in.

◆ magma_zdotu()

magmaDoubleComplex magma_zdotu ( magma_int_t n,
magmaDoubleComplex_const_ptr dx,
magma_int_t incx,
magmaDoubleComplex_const_ptr dy,
magma_int_t incy,
magma_queue_t queue )
Returns
Dot product (unconjugated) of vectors x and y; \( x^T y \).
Parameters
[in]nNumber of elements in vector x and y. n >= 0.
[in]dxCOMPLEX_16 array on GPU device. The n element vector x of dimension (1 + (n-1)*incx).
[in]incxStride between consecutive elements of dx. incx != 0.
[in]dyCOMPLEX_16 array on GPU device. The n element vector y of dimension (1 + (n-1)*incy).
[in]incyStride between consecutive elements of dy. incy != 0.
[in]queuemagma_queue_t Queue to execute in.