The configuration parameter
DFTI_PRECISIONdenotes the floating-point precision in which the transform is to be carried out. A setting of
DFTI_SINGLEstands for single precision, and a setting of
DFTI_DOUBLEstands for double precision. The data must be presented in this precision, the computation is carried out in this precision, and the result is delivered in this precision.
DFTI_PRECISIONdoes not have a default value. Set it explicitly by calling the
To better understand configuration of the precision of transforms, refer to these examples in your
Intel® oneAPI Math Kernel Library