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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
| [root@wq_desktop test]# more Makefile
DIRS = spu ppu
include /opt/cell/sdk/buildutils/make.footer
[root@wq_desktop test]# more ppu/Makefile
PROGRAM_ppu := ../test
IMPORTS = ../spu/libtest_spu.a -lspe2 -lpthread
include /opt/cell/sdk/buildutils/make.footer
[root@wq_desktop test]# more spu/Makefile
PROGRAMS_spu := test_spu
LIBRARY_embed := libtest_spu.a
include /opt/cell/sdk/buildutils/make.footer
[root@wq_desktop test]# more ppu/test_p.c
#include <pthread.h>
#include <libspe2.h>
#define SPU_THREADS 2
extern spe_program_handle_t test_spu;
void *ppu_pthread_function(void *arg)
{
spe_context_ptr_t ctx;
unsigned int entry = SPE_DEFAULT_ENTRY;
ctx = *((spe_context_ptr_t *)arg);
if (spe_context_run(ctx, &entry, 0, NULL, NULL, NULL) < 0) {
perror ("Failed running context");
return NULL;
}
pthread_exit(NULL);
}
int main ( )
{
int i;
spe_context_ptr_t ctxs[SPU_THREADS];
pthread_t threads[SPU_THREADS];
for(i=0; i<SPU_THREADS; i++)
{
if ((ctxs = spe_context_create (0, NULL)) == NULL)
{
perror ("Failed creating context");
return -1;
}
if (spe_program_load (ctxs, &test_spu))
{
perror ("Failed loading program");
return -1;
}
if (pthread_create (&threads, NULL, &ppu_pthread_function, &ctxs))
{
perror ("Failed creating thread");
return -1;
}
}
for (i=0; i<SPU_THREADS; i++)
{
if (pthread_join (threads, NULL))
{
perror("Failed pthread_join");
return -1;
}
}
return (0);
}
[root@wq_desktop test]# more spu/test_spu.c
#include <stdio.h>
int main()
{
int a[4] = {120, 230, 580, 970};
float b[4] = {1.8, 1.98, 0.68, 0.7};
int c[4] = {0};
int i = 0;
for( i = 0; i < 4; i ++ )
{
c = a * b;
printf("c[%d] = %d\n", i, c);
}
return 0;
}
|
