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Hija all
status = DftiComputeForward( desc_handle, x_in, y_out );
Can anybody tell me how I can find out what x_in and y_out are?
Thanks for your help
Erich
status = DftiComputeForward( desc_handle, x_in, y_out );
Can anybody tell me how I can find out what x_in and y_out are?
Thanks for your help
Erich
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Hi Erich,
first of all, please look at the examples MKL DFTI examples. you can find them in \examples\dftc\source\ directory.
--Gennady
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Hi Erich,
For out-of-place transforms x_in is for input data and y_out for output.
But for in-place transforms the only data pointer is for input and output.
Also, in case of split-complex data there should be used two separated pointers: for real and imagimary parts. Please take a look at MKL User Guide for more details.
For out-of-place transforms x_in is for input data and y_out for output.
But for in-place transforms the only data pointer is for input and output.
Also, in case of split-complex data there should be used two separated pointers: for real and imagimary parts. Please take a look at MKL User Guide for more details.
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Sorry, here is fragment from MKL Reference Manual (not User Guide as I mentioned before):
ComputeForward
Computes the forward FFT.
Syntax
Fortran:
status = DftiComputeForward( desc_handle, x_inout )
status = DftiComputeForward( desc_handle, x_in, y_out )
status = DftiComputeForward( desc_handle, xre_inout, xim_inout )
status = DftiComputeForward( desc_handle, xre_in, xim_in, yre_out, yim_out )
C:
status = DftiComputeForward( desc_handle, x_inout );
status = DftiComputeForward( desc_handle, x_in, y_out );
status = DftiComputeForward( desc_handle, xre_inout, xim_inout );
status = DftiComputeForward( desc_handle, xre_in, xim_in, yre_out, yim_out );
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Hi Gennady, (all)
Thanks for your great help and pointing me to the examples directory. I should be able to sort it out now.
Erich
Thanks for your great help and pointing me to the examples directory. I should be able to sort it out now.
Erich
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