Developer Reference for Intel® oneAPI Math Kernel Library for C

ID 766684
Date 3/22/2024
Public

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DFTI_DESTROY_INPUT

Allowing the library to overwrite your input data in case of out-of-place transforms may be an appropriate alternative to using DFTI_WORKSPACE to reduce the memory footprint of your application. Intel® oneAPI Math Kernel Library (oneMKL) enables you to communicate whether this is allowed via the configuration parameter DFTI_DESTROY_INPUT, with the following values:

DFTI_AVOID

The default. Instructs the library to leave the input data unchanged.

DFTI_ALLOW

Permits the input data to be overwritten.

See Also