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1 /*
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2 * Copyright (c) 2000 Matteo Frigo
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3 * Copyright (c) 2000 Massachusetts Institute of Technology
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4 *
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5 * This program is free software; you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation; either version 2 of the License, or
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program; if not, write to the Free Software
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17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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18 *
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19 */
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20
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21
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22 #include <stdio.h>
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23 #include <stdlib.h>
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24
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25 #include "verify.h"
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26
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27 void verify_problem(bench_problem *p, int rounds, double tol)
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28 {
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29 errors e;
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30 const char *pstring = p->pstring ? p->pstring : "<unknown problem>";
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31
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32 switch (p->kind) {
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33 case PROBLEM_COMPLEX: verify_dft(p, rounds, tol, &e); break;
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34 case PROBLEM_REAL: verify_rdft2(p, rounds, tol, &e); break;
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35 case PROBLEM_R2R: verify_r2r(p, rounds, tol, &e); break;
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36 }
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37
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38 if (verbose)
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39 ovtpvt("%s %g %g %g\n", pstring, e.l, e.i, e.s);
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40 }
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41
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42 void verify(const char *param, int rounds, double tol)
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43 {
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44 bench_problem *p;
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45
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46 p = problem_parse(param);
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47 problem_alloc(p);
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48
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49 if (!can_do(p)) {
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50 ovtpvt_err("No can_do for %s\n", p->pstring);
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51 BENCH_ASSERT(0);
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52 }
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53
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54 problem_zero(p);
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55 setup(p);
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56
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57 verify_problem(p, rounds, tol);
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58
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59 done(p);
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60 problem_destroy(p);
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61 }
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62
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63
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64 static void do_accuracy(bench_problem *p, int rounds, int impulse_rounds)
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65 {
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66 double t[6];
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67
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68 switch (p->kind) {
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69 case PROBLEM_COMPLEX:
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70 accuracy_dft(p, rounds, impulse_rounds, t); break;
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71 case PROBLEM_REAL:
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72 accuracy_rdft2(p, rounds, impulse_rounds, t); break;
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73 case PROBLEM_R2R:
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74 accuracy_r2r(p, rounds, impulse_rounds, t); break;
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75 }
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76
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77 /* t[0] : L1 error
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78 t[1] : L2 error
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79 t[2] : Linf error
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80 t[3..5]: L1, L2, Linf backward error */
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81 ovtpvt("%6.2e %6.2e %6.2e %6.2e %6.2e %6.2e\n",
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82 t[0], t[1], t[2], t[3], t[4], t[5]);
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83 }
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84
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85 void accuracy(const char *param, int rounds, int impulse_rounds)
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86 {
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87 bench_problem *p;
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88 p = problem_parse(param);
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89 BENCH_ASSERT(can_do(p));
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90 problem_alloc(p);
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91 problem_zero(p);
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92 setup(p);
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93 do_accuracy(p, rounds, impulse_rounds);
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94 done(p);
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95 problem_destroy(p);
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96 }
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