int main (int argc, char *argv[])
{
void *ptr;
int err = 0;
hbw_set_policy(HBW_POLICY_BIND);
printf ("Allocating 400 KB with 1GB pages\n");
err = hbw_posix_memalign_psize (&ptr,
1073741824,
409600,
HBW_PAGESIZE_1GB);
if (err) {
fprintf(stderr, "ERROR: hbw_posix_memalign_size()\n");
}
if (!err) {
memset (ptr, 0, 409600);
printf ("Reallocing 100KB with 1GB pages\n");
ptr = hbw_realloc (ptr, 102400);
if (ptr == NULL) {
fprintf(stderr, "ERROR: hbw_realloc()\n");
err = -1;
}
}
if (!err) {
memset (ptr, 0, 102400);
printf ("Reallocing 1GB with 1GB pages\n");
ptr = hbw_realloc (ptr, 1073741824);
if (ptr == NULL) {
fprintf(stderr, "ERROR: hbw_realloc()");
err = -1;
}
}
if (!err) {
memset (ptr, 0, 1073741824);
printf ("Reallocing 1073742848 with 1GB pages\n");
ptr = hbw_realloc (ptr, 1073742848);
if (ptr == NULL) {
fprintf(stderr, "ERROR: hbw_realloc()\n");
err = -1;
}
}
if (!err) {
memset (ptr, 0, 1073742848);
}
if (ptr) {
hbw_free(ptr);
}
return err;
}
int main(int argc, char **argv)
{
const size_t size = 512;
char *default_str = NULL;
char *hbw_str = NULL;
char *hbw_hugetlb_str = NULL;
int err = 0;
default_str = (char *)malloc(size);
if (default_str == NULL) {
perror("malloc()");
fprintf(stderr, "Unable to allocate default string\n");
err = errno ? -errno : 1;
goto exit;
}
hbw_str = (char *)hbw_malloc(size);
if (hbw_str == NULL) {
perror("hbw_malloc()");
fprintf(stderr, "Unable to allocate hbw string\n");
err = errno ? -errno : 1;
goto exit;
}
err = hbw_posix_memalign_psize((void **)&hbw_hugetlb_str, 2097152, size, HBW_PAGESIZE_2MB);
if (err) {
perror("hbw_posix_memalign()");
fprintf(stderr, "Unable to allocate hbw hugetlb string\n");
err = errno ? -errno : 1;
goto exit;
}
sprintf(default_str, "Hello world from standard memory\n");
sprintf(hbw_str, "Hello world from high bandwidth memory\n");
sprintf(hbw_hugetlb_str, "Hello world from high bandwidth 2 MB paged memory\n");
fprintf(stdout, "%s", default_str);
fprintf(stdout, "%s", hbw_str);
fprintf(stdout, "%s", hbw_hugetlb_str);
exit:
if (hbw_hugetlb_str) {
hbw_free(hbw_hugetlb_str);
}
if (hbw_str) {
hbw_free(hbw_str);
}
if (default_str) {
free(default_str);
}
return err;
}
