Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 0.9
  • 09/09/2020
  • Public Content
Contents

FFT Interface

The
Intel® oneAPI Math Kernel Library
 FFT functions are provided with the Fortran and C interfaces.
The materials presented in this
section
 assume the availability of native complex types in C as they are specified in C9X.
To use the FFT functions, you need to
include
mkl_dfti.h
 in your C code
.
The C interface provides the
DFTI_DESCRIPTOR_HANDLE
 type, named constants of two enumeration types
DFTI_CONFIG_PARAM
 and
DFTI_CONFIG_VALUE
, and functions, some of which accept different numbers of input arguments.
The current version of the library may not support some of the FFT functions or functionality. You can find the complete list of the implementation-specific exceptions in the
Intel® oneAPI Math Kernel Library
 Release Notes.
For the main categories of
Intel® oneAPI Math Kernel Library
 FFT functions, seeFFT Functions.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804