(SD)SDOT¶

Single with extended internal precision SDOT.

Description¶

Performs a dot product of the input vectors X and Y using extended internal precision for accumulation.

$\result = B + \sum_{i=1}^N {x_{i} \mult y_{i}}$

BLAS Interface¶

float sdsdot(const qml_long *N, const float *B, const float *X,
             const qml_long *INCX, const float *Y, const qml_long *INCY);

CBLAS Interface¶

float cblas_sdsdot(const qml_long N, const float B, const float *X,
                   const qml_long INCX, const float *Y,
                   const qml_long INCY);

Arguments¶

N	Number of elements in X and Y
B	Initial accumulator value
X	First input vector, must be at least: $(\fvar{N}-1)\mult\abs{\fvar{INCX}} + 1$
INCX	Distance between individual elements in X
Y	Second input vector, must be at least: $(\fvar{N}-1)\mult\abs{\fvar{INCY}} + 1$
INCY	Distance between individual elements in Y
Result	Result of the dot product