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/*
tune_main.c: main() routine for tuning program
Copyright (C) 2007, 2008, David Harvey
This file is part of the zn_poly library (version 0.9).
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include "support.h"
#include "zn_poly_internal.h"
#include "profiler.h"
char* header =
"/*\n"
" NOTE: do not edit this file! It is auto-generated by the \"tune\" program.\n"
" (Run \"make tune\" and then \"./tune > tuning.c\" to regenerate it.)\n"
"*/\n"
"\n"
"/*\n"
" tuning.c: global tuning values\n"
"\n"
" Copyright (C) 2007, 2008, David Harvey\n"
"\n"
" This file is part of the zn_poly library (version 0.9).\n"
"\n"
" This program is free software: you can redistribute it and/or modify\n"
" it under the terms of the GNU General Public License as published by\n"
" the Free Software Foundation, either version 2 of the License, or\n"
" (at your option) version 3 of the License.\n"
"\n"
" This program is distributed in the hope that it will be useful,\n"
" but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
" GNU General Public License for more details.\n"
"\n"
" You should have received a copy of the GNU General Public License\n"
" along with this program. If not, see <http://www.gnu.org/licenses/>.\n"
"\n"
"*/\n"
"\n"
"#include \"zn_poly_internal.h\"\n"
"\n";
char* footer =
"};\n"
"\n"
"// end of file ****************************************************************\n";
int
main (int argc, char* argv[])
{
fprintf (stderr, "zn_poly tuning program\n");
fprintf (stderr, "(use -v flag for verbose output)\n\n");
gmp_randinit_default (randstate);
#if ZNP_HAVE_CYCLE_COUNTER
calibrate_cycle_scale_factor ();
int verbose = 0;
if (argc == 2 && !strcmp (argv[1], "-v"))
verbose = 1;
// call various routines to generate tuning data
tune_mpn_smp_kara (stderr, verbose);
tune_mpn_mulmid_fallback (stderr, verbose);
tune_mul_KS (stderr, 0, verbose);
tune_mul_KS (stderr, 1, verbose);
tune_mulmid_KS (stderr, verbose);
tune_nuss (stderr, 0, verbose);
tune_nuss (stderr, 1, verbose);
tune_mul (stderr, 0, verbose);
tune_mul (stderr, 1, verbose);
tune_mulmid (stderr, verbose);
#else
fprintf (stderr, "\n"
"Warning: no cycle counting code available on this system,\n"
"using default tuning values.\n\n");
#endif
unsigned bits;
size_t x;
// generate tuning.c file
printf ("%s", header);
x = ZNP_mpn_smp_kara_thresh;
printf ("size_t ZNP_mpn_smp_kara_thresh = ");
printf (x == SIZE_MAX ? "SIZE_MAX;\n" : "%lu;\n", x);
x = ZNP_mpn_mulmid_fallback_thresh;
printf ("size_t ZNP_mpn_mulmid_fallback_thresh = ");
printf (x == SIZE_MAX ? "SIZE_MAX;\n" : "%lu;\n", x);
printf ("\n");
printf ("tuning_info_t tuning_info[] = \n");
printf ("{\n");
printf (" { // bits = 0\n");
printf (" },\n");
printf (" { // bits = 1\n");
printf (" },\n");
for (bits = 2; bits <= ULONG_BITS; bits++)
{
printf (" { // bits = %u\n", bits);
x = tuning_info[bits].mul_KS2_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS1 -> KS2 multiplication threshold\n");
x = tuning_info[bits].mul_KS4_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS2 -> KS4 multiplication threshold\n");
x = tuning_info[bits].mul_fft_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS4 -> FFT multiplication threshold\n");
x = tuning_info[bits].sqr_KS2_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS1 -> KS2 squaring threshold\n");
x = tuning_info[bits].sqr_KS4_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS2 -> KS4 squaring threshold\n");
x = tuning_info[bits].sqr_fft_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS4 -> FFT squaring threshold\n");
x = tuning_info[bits].mulmid_KS2_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS1 -> KS2 middle product threshold\n");
x = tuning_info[bits].mulmid_KS4_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS2 -> KS4 middle product threshold\n");
x = tuning_info[bits].mulmid_fft_thresh;
printf (x == SIZE_MAX ? " SIZE_MAX," : " %5lu,", x);
printf (" // KS4 -> FFT middle product threshold\n");
printf (" %5lu, // nussbaumer multiplication threshold\n",
tuning_info[bits].nuss_mul_thresh);
printf (" %5lu // nussbaumer squaring threshold\n",
tuning_info[bits].nuss_sqr_thresh);
printf (" },\n");
}
printf ("%s", footer);
gmp_randclear (randstate);
return 0;
}
// end of file ****************************************************************
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