Visible to Intel only — GUID: GUID-AD76D0A3-F824-40EE-9AF5-D501E2832655
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Message
Detailed Help
Suggestions to Fix
DPCT1100
Visible to Intel only — GUID: GUID-AD76D0A3-F824-40EE-9AF5-D501E2832655
DPCT1099
Message
Verify if the default value of the direction and placement used in the function <function name> is correct.
Detailed Help
By default, the parameter direction_and_placement is not passed for dpct::fft::fft_engine::create(), dpct::fft::fft_engine::commit(), or dpct::fft::fft_engine::estimate_size(). In this case, a forward direction (if the current FFT is complex-to-complex) and out-of-place (false) are used as the default values in this API. The configuration of the direction and placement is reset when executing dpct::fft::fft_engine::compute() according to the argument passed with the compute() API. There might be performance issues caused by the reconfiguration.
To avoid the potential performance issues, specify the parameter direction_and_placement explicitly when calling dpct::fft::fft_engine::create() or dpct::fft::fft_engine::commit(), then the direction and placement information passed by the compute() API is ignored and no reconfiguration happens.
Suggestions to Fix
If you received a warning for dpct::fft::fft_engine::create() or dpct::fft::fft_engine::commit():
If you are using an internal workspace and do not care about performance, you can ignore this warning.
If you do care about performance, specify the direction_and_placement parameter correctly.
If you received this warning for dpct::fft::fft_engine::estimate_size(), you need specify the direction_and_placement parameter correctly.