Intel® Math Kernel Library 2019 Developer Reference - C
All types in this documentation are either standard C types float and double or MKL_INT integer type. For more information on the C types, refer to C Datatypes Specific to Intel MKL and the Intel® MKL Developer Guide. To better understand usage of the types, see examples in the examples\pdettc\source folder in your Intel MKL directory.
All TT routines use parameters to pass various options to one another. These parameters are arrays ipar, dpar and spar. Values for these parameters should be specified very carefully (see Common Parameters). You can change these values during computations to meet your needs.
To avoid failure or incorrect results, you must provide correct and consistent parameters to the routines.
TT routines take arrays of user data as input. For example, user arrays are passed to the routine d_forward_trig_transform to compute a forward Trigonometric Transform. To minimize storage requirements and improve the overall run-time efficiency, Intel MKL TT routines do not make copies of user input arrays.
If you need a copy of your input data arrays, you must save them yourself.
For better performance, align your data arrays as recommended in the Intel MKL Developer Guide (search the document for coding techniques to improve performance).