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
|
#include <volk_rank_archs.h>
#include <volk/volk_prefs.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
unsigned int get_index(const char *indices[], unsigned int n_archs, const char *arch_name) {
unsigned int i;
for(i=0; i<n_archs; i++) {
if(!strncmp(indices[i], arch_name, 20)) {
return i;
}
}
//something terrible should happen here
printf("Volk warning: no arch found, returning generic impl\n");
return get_index(indices, n_archs, "generic"); //but we'll fake it for now
}
unsigned int volk_rank_archs(const char *indices[], const int* arch_defs, unsigned int n_archs, const char* name, unsigned int arch) {
unsigned int i;
unsigned int best_val = 0;
static struct volk_arch_pref *volk_arch_prefs;
static unsigned int n_arch_prefs = 0;
static int prefs_loaded = 0;
if(!prefs_loaded) {
n_arch_prefs = load_preferences(&volk_arch_prefs);
prefs_loaded = 1;
}
//now look for the function name in the prefs list
for(i=0; i < n_arch_prefs; i++) {
if(!strncmp(name, volk_arch_prefs[i].name, 128)) { //found it
return get_index(indices, n_archs, volk_arch_prefs[i].arch);
}
}
for(i=1; i < n_archs; ++i) {
if((arch_defs[i]&(!arch)) == 0) {
best_val = (arch_defs[i] > arch_defs[best_val + 1]) ? i-1 : best_val;
}
}
return best_val;
}
|
