39   const int N = 1000000;
 
   40   const int M = 1000000;
 
   44   printf(
"nthreads = %d\n", nfft_get_num_threads());
 
   56       nfft_precompute_one_psi(&p);
 
   58   t = nfft_elapsed_seconds(t1,t0);
 
   59   fprintf(stderr,
"precompute elapsed time: %.3f seconds\n",t);
 
   68   t = nfft_elapsed_seconds(t1,t0);
 
   69   fprintf(stderr,
"compute    elapsed time: %.3f seconds\n",t);
 
   75   fftw_cleanup_threads();