1 /* Skeleton for libmvec benchmark programs.
2 Copyright (C) 2021-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <string.h>
20 #include <stdint.h>
21 #include <stdbool.h>
22 #include <stdio.h>
23 #include <time.h>
24 #include <inttypes.h>
25 #include <bench-timing.h>
26 #include <json-lib.h>
27 #include <bench-util.h>
28 #include <math-tests-arch.h>
29
30 #include <bench-util.c>
31 #define D_ITERS 10000
32
33 int
main(int argc,char ** argv)34 main (int argc, char **argv)
35 {
36 unsigned long i, k;
37 timing_t start, end;
38 json_ctx_t json_ctx;
39
40 #if defined REQUIRE_AVX
41 if (!CPU_FEATURE_ACTIVE (AVX))
42 {
43 printf ("AVX not supported.");
44 return 77;
45 }
46 #elif defined REQUIRE_AVX2
47 if (!CPU_FEATURE_ACTIVE (AVX2))
48 {
49 printf ("AVX2 not supported.");
50 return 77;
51 }
52 #elif defined REQUIRE_AVX512F
53 if (!CPU_FEATURE_ACTIVE (AVX512F))
54 {
55 printf ("AVX512F not supported.");
56 return 77;
57 }
58 #endif
59
60 bench_start ();
61
62 #ifdef BENCH_INIT
63 BENCH_INIT ();
64 #endif
65
66 json_init (&json_ctx, 2, stdout);
67
68 /* Begin function. */
69 json_attr_object_begin (&json_ctx, FUNCNAME);
70
71 for (int v = 0; v < NUM_VARIANTS; v++)
72 {
73 double d_total_time = 0;
74 timing_t cur;
75 for (k = 0; k < D_ITERS; k++)
76 {
77 TIMING_NOW (start);
78 for (i = 0; i < NUM_SAMPLES (v); i++)
79 BENCH_FUNC (v, i);
80 TIMING_NOW (end);
81
82 TIMING_DIFF (cur, start, end);
83
84 TIMING_ACCUM (d_total_time, cur);
85 }
86 double d_total_data_set = D_ITERS * NUM_SAMPLES (v) * STRIDE;
87
88 /* Begin variant. */
89 json_attr_object_begin (&json_ctx, VARIANT (v));
90
91 json_attr_double (&json_ctx, "duration", d_total_time);
92 json_attr_double (&json_ctx, "iterations", d_total_data_set);
93 json_attr_double (&json_ctx, "mean", d_total_time / d_total_data_set);
94
95 /* End variant. */
96 json_attr_object_end (&json_ctx);
97 }
98
99 /* End function. */
100 json_attr_object_end (&json_ctx);
101
102 return 0;
103 }
104