, unsigned flags,
                     ptrdiff_t *local_ni, ptrdiff_t *local_i_start,
                     ptrdiff_t *local_no, ptrdiff_t *local_o_start);
</pre>
   <p><a name="index-fftw_005fmpi_005flocal_005fsize_005f1d-386"></a>
This function computes the data distribution for a 1d transform of
size <code>n0</code> with the given transform <code>sign</code> and <code>flags</code>. 
Both input and output data use block distributions.  The input on the
current process will consist of <code>local_ni</code> 