Visible to Intel only — GUID: GUID-36BA5016-BE31-4BA0-9CC4-067D6DDA33B8
Visible to Intel only — GUID: GUID-36BA5016-BE31-4BA0-9CC4-067D6DDA33B8
DftiCommitDescriptor
Performs all initialization for the actual FFT computation.
Syntax
status = DftiCommitDescriptor( desc_handle )
Include Files
- mkl_dfti.f90
Input Parameters
Name |
Type |
Description |
---|---|---|
desc_handle |
DFTI_DESCRIPTOR |
FFT descriptor. |
Output Parameters
Name |
Type |
Description |
---|---|---|
desc_handle |
DFTI_DESCRIPTOR |
Updated FFT descriptor. |
status |
INTEGER |
Function completion status. |
Description
This function completes initialization of a previously created descriptor, which is required before the descriptor can be used for FFT computations. Typically, committing the descriptor performs all initialization that is required for the actual FFT computation. The initialization done by the function may involve exploring different factorizations of the input length to find the optimal computation method.
If you call the DftiSetValue function to change configuration parameters of a committed descriptor (see Descriptor Configuration Functions), you must re-commit the descriptor before invoking a computation function. Typically, a committal function call is immediately followed by a computation function call (see FFT Computation Functions).
The function returns zero when it completes successfully. See Status Checking Functions for more information on the returned status.
Interface
INTERFACE DftiCommitDescriptor !Note that the body provided here is to illustrate the different !argument list and types of dummy arguments. The interface !does not guarantee what the actual function names are. !Users can only rely on the function name following the !keyword INTERFACE FUNCTION some_actual function_1 ( Desc_Handle ) INTEGER :: some_actual function_1 TYPE(DFTI_DESCRIPTOR), POINTER :: Desc_Handle END FUNCTION some_actual function_1 END INTERFACE DftiCommitDescriptor