// Testcase to test hpx_lco_get_all function
static int _getAll_handler(uint32_t *args, size_t size) {
uint32_t n = *args;
if (n < 2) {
return HPX_THREAD_CONTINUE(n);
}
hpx_addr_t peers[] = {
HPX_HERE,
HPX_HERE
};
uint32_t ns[] = {
n - 1,
n - 2
};
hpx_addr_t futures[] = {
hpx_lco_future_new(sizeof(uint32_t)),
hpx_lco_future_new(sizeof(uint32_t))
};
uint32_t ssn[] = {
0,
0
};
void *addrs[] = {
&ssn[0],
&ssn[1]
};
size_t sizes[] = {
sizeof(uint32_t),
sizeof(uint32_t)
};
hpx_call(peers[0], _getAll, futures[0], &ns[0], sizeof(uint32_t));
hpx_call(peers[1], _getAll, futures[1], &ns[1], sizeof(uint32_t));
hpx_lco_get_all(2, futures, sizes, addrs, NULL);
hpx_lco_wait(futures[0]);
hpx_lco_wait(futures[1]);
hpx_addr_t wait = hpx_lco_future_new(0);
hpx_lco_delete_all(2, futures, wait);
hpx_lco_wait(wait);
hpx_lco_delete(wait, HPX_NULL);
uint32_t sn = ssn[0] * ssn[0] + ssn[1] * ssn[1];
return HPX_THREAD_CONTINUE(sn);
}
static int _main_action(int *args, size_t size) {
hpx_time_t t;
int count;
fprintf(stdout, HEADER);
fprintf(stdout, "# Latency in (ms)\n");
t = hpx_time_now();
hpx_addr_t done = hpx_lco_future_new(0);
fprintf(stdout, "Creation time: %g\n", hpx_time_elapsed_ms(t));
value = 1234;
t = hpx_time_now();
hpx_call(HPX_HERE, _set_value, done, &value, sizeof(value));
fprintf(stdout, "Value set time: %g\n", hpx_time_elapsed_ms(t));
t = hpx_time_now();
hpx_lco_wait(done);
fprintf(stdout, "Wait time: %g\n", hpx_time_elapsed_ms(t));
t = hpx_time_now();
hpx_lco_delete(done, HPX_NULL);
fprintf(stdout, "Deletion time: %g\n", hpx_time_elapsed_ms(t));
fprintf(stdout, "%s\t%*s%*s%*s\n", "# NumReaders " , FIELD_WIDTH,
"Get_Value ", FIELD_WIDTH, " LCO_Getall ", FIELD_WIDTH, "Delete");
for (int i = 0; i < sizeof(num_readers)/sizeof(num_readers[0]); i++) {
fprintf(stdout, "%d\t\t", num_readers[i]);
count = num_readers[i];
int values[count];
void *addrs[count];
size_t sizes[count];
hpx_addr_t futures[count];
for (int j = 0; j < count; j++) {
addrs[j] = &values[j];
sizes[j] = sizeof(int);
futures[j] = hpx_lco_future_new(sizeof(int));
}
t = hpx_time_now();
for (int j = 0; j < count; j++) {
t = hpx_time_now();
hpx_call(HPX_HERE, _get_value, futures[j], NULL, 0);
hpx_lco_wait(futures[j]);
}
fprintf(stdout, "%*g", FIELD_WIDTH, hpx_time_elapsed_ms(t));
t = hpx_time_now();
hpx_lco_get_all(count, futures, sizes, addrs, NULL);
fprintf(stdout, "%*g", FIELD_WIDTH, hpx_time_elapsed_ms(t));
t = hpx_time_now();
for (int j = 0; j < count; j++)
hpx_lco_delete(futures[j], HPX_NULL);
fprintf(stdout, "%*g\n", FIELD_WIDTH, hpx_time_elapsed_ms(t));
}
hpx_exit(HPX_SUCCESS);
}
static int _nqueens_action(void *args, size_t size)
{
int i, j;
struct thread_data *my_data;
my_data = (struct thread_data *) args;
/*
printf("n = %d, col = %d, count = %d\n", my_data->n
, my_data->col
, count);
*/
if (my_data->col == my_data->n) {
hpx_lco_sema_p(mutex);
++count;
/*
printf("\nNo. %d\n-----\n", count);
for (i = 0; i < my_data->n; i++, putchar('\n'))
for(j = 0; j < my_data->n; j++)
putchar(j == my_data->lyst[i] ? 'Q' : ((i + j) & 1) ? ' ' : '.');
*/
hpx_lco_sema_v_sync(mutex);
hpx_thread_exit(HPX_SUCCESS);
//hpx_thread_continue(NULL, 0);
//return HPX_SUCCESS;
}
#define p_attack(i, j) (my_data->lyst[j] == i || abs(my_data->lyst[j] - i) == my_data->col - j)
int dummy=0;
int num_spawns=0;
for(i = 0, j = 0; i < my_data->n; i++) {
for (j = 0; j < my_data->col && !p_attack(i, j); j++);
if (j < my_data->col) {
dummy++;
}
}
//printf("dummy/spawns: %d/%d\n", dummy, my_data->n);
num_spawns = my_data->n - dummy;
bool D_CALL = false;
//printf("num_spawns = %d\n", num_spawns);
if( num_spawns == 0 ) {
num_spawns = 1;
D_CALL = true;
}
//num_spawns = my_data->n;
struct thread_data temp[num_spawns];
hpx_addr_t futures[num_spawns];
hpx_addr_t threads[num_spawns];
int pqs[num_spawns];
size_t p_size[num_spawns];
void *addrs[num_spawns];
for(i = 0; i < num_spawns; i++) {
futures[i] = hpx_lco_future_new(sizeof(int));
threads[i] = HPX_HERE;
pqs[i] = 0;
addrs[i] = &pqs[i];
p_size[i] = sizeof(size_t);
}
int k=0; // counter for hpx data
for(i = 0, j = 0; i < my_data->n; i++) {
for (j = 0; j < my_data->col && !p_attack(i, j); j++);
if (j < my_data->col) {
//printf("[%d] call continue.\n", i);
continue;
}
//printf("[%d] call nqueens %d\n", i, k);
my_data->lyst[my_data->col] = i;
memcpy(temp[k].lyst, my_data->lyst, MAX_SIZE*sizeof(int));
temp[k].n = my_data->n;
temp[k].col = my_data->col+1;
//solve(n, col + 1, hist);
hpx_call(threads[k], _nqueens, futures[k], (void *)&temp[k], sizeof(temp[k]));
k++;
}
if( !D_CALL ) {
hpx_lco_get_all(num_spawns, futures, p_size, addrs, NULL);
for(i = 0; i < num_spawns; i++)
hpx_lco_delete(futures[i], HPX_NULL);
}
return HPX_SUCCESS;
}
