1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
Copyright (c) 2011, UT-Battelle, LLC
Copyright (c) 2014, the President and Fellows of Harvard College
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Oak Ridge National Laboratory, nor UT-Battelle, LLC, nor
the names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Implementations based on:
V. Volkov and B. Kazian. Fitting fft onto the g80 architecture. 2008.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define TYPE double
//#define TYPE int
typedef struct complex_t {
TYPE x;
TYPE y;
} complex;
#define PI 3.1415926535
#ifndef M_SQRT1_2
#define M_SQRT1_2 0.70710678118654752440f
#endif
void fft1D_512(TYPE work_x[512], TYPE work_y[512]);
////////////////////////////////////////////////////////////////////////////////
// Test harness interface code.
struct bench_args_t {
TYPE work_x[512];
TYPE work_y[512];
};
int INPUT_SIZE = sizeof(struct bench_args_t);
void run_benchmark( void *vargs ) {
struct bench_args_t *args = (struct bench_args_t *)vargs;
fft1D_512( args->work_x, args->work_y);
}
////////////////////////////////////////////////////////////////////////////////
|
