Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 2021.1
  • 12/04/2020
  • Public Content
Contents

DFTI_PLACEMENT

By default, the computational functions overwrite the input data with the output result. That is, the default setting of the configuration parameter
DFTI_PLACEMENT
 is
DFTI_INPLACE
. You can change that by setting it to
DFTI_NOT_INPLACE
.
When the configuration parameter is set to
DFTI_NOT_INPLACE
, the input and output data sets must have no common elements.
To better understand the use of the
DFTI_PLACEMENT
configuration parameter, see this example in your
Intel® oneAPI Math Kernel Library
 directory:
./examples/dftc/source/config_placement.c

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.