y,
             MPI_Comm comm, int sign, unsigned flags,
             ptrdiff_t *local_ni, ptrdiff_t *local_i_start,
             ptrdiff_t *local_no, ptrdiff_t *local_o_start);
</pre></div>

<a name="index-FFTW_005fMPI_005fSCRAMBLED_005fOUT-1"></a>
<a name="index-FFTW_005fMPI_005fSCRAMBLED_005fIN-1"></a>
<p>As above, the return value is the number of elements to allocate
(complex numbers, for complex DFTs).  The <code>local_ni</code> and
<code>local_i_start</code> arguments return the portion
(<code>local_