Workspace is not required for FFTs of following sizes:

  • Powers of 2 up to 32768

  • Powers of 3 up to 19683

  • Powers of 5 up to 15625

  • Powers of 6 up to 1296

  • Powers of 7 up to 2401

  • Powers of 10 up to 10000

  • Powers of 11 up to 1331

  • Powers of 12 up to 1728

In the future versions of cuFFTDx:
  • Workspace requirement may be removed for other configurations.

  • FFT configurations that do not require workspace will continue to do so.