Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 11/07/2023
Public

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Cluster FFT Descriptor Configuration Functions

There are two functions in this category: the value-setting function DftiSetValueDM sets one particular configuration parameter to an appropriate value, and the value-getting function DftiGetValueDM reads the value of one particular configuration parameter.

Some configuration parameters used by cluster FFT functions originate from the conventional FFT interface (see Configuration Settings for details).

Other configuration parameters are specific to the cluster FFT. Integer values of these parameters have type INTEGER(4). The exact type of the configuration parameters being floating-point scalars is REAL(4) or REAL(8). The configuration parameters whose values are named constants have the INTEGER type. They are defined in the MKL_CDFT module.

The names of the configuration parameters specific to the cluster FFT interface have the CDFT prefix.