static gboolean
ufo_null_task_process (UfoTask *task,
UfoBuffer **inputs,
UfoBuffer *output,
UfoRequisition *requisition)
{
UfoNullTaskPrivate *priv;
priv = UFO_NULL_TASK_GET_PRIVATE (task);
if (priv->force_download) {
gfloat *host_array;
host_array = ufo_buffer_get_host_array (inputs[0], NULL);
host_array[0] = 0.0;
}
if (priv->finish) {
UfoGpuNode *gpu;
gpu = UFO_GPU_NODE (ufo_task_node_get_proc_node (UFO_TASK_NODE (task)));
UFO_RESOURCES_CHECK_CLERR (clFinish (ufo_gpu_node_get_cmd_queue (gpu)));
}
return TRUE;
}
static void
run_remote_task (TaskLocalData *tld)
{
UfoRemoteNode *remote;
guint n_remote_gpus;
gboolean *alive;
gboolean active = TRUE;
g_assert (tld->n_inputs == 1);
remote = UFO_REMOTE_NODE (ufo_task_node_get_proc_node (UFO_TASK_NODE (tld->task)));
n_remote_gpus = ufo_remote_node_get_num_gpus (remote);
alive = g_new0 (gboolean, n_remote_gpus);
/*
* We launch a new thread for each incoming input data set because then we
* can send as many items as we have remote GPUs available without waiting
* for processing to stop.
*/
while (active) {
for (guint i = 0; i < n_remote_gpus; i++) {
UfoBuffer *input;
if (get_inputs (tld, &input)) {
ufo_remote_node_send_inputs (remote, &input);
release_inputs (tld, &input);
alive[i] = TRUE;
}
else {
alive[i] = FALSE;
}
}
for (guint i = 0; i < n_remote_gpus; i++) {
UfoGroup *group;
UfoBuffer *output;
UfoRequisition requisition;
if (!alive[i])
continue;
ufo_remote_node_get_requisition (remote, &requisition);
group = ufo_task_node_get_out_group (UFO_TASK_NODE (tld->task));
output = ufo_group_pop_output_buffer (group, &requisition);
ufo_remote_node_get_result (remote, output);
ufo_group_push_output_buffer (group, output);
}
active = any (alive, n_remote_gpus);
}
g_free (alive);
ufo_group_finish (ufo_task_node_get_out_group (UFO_TASK_NODE (tld->task)));
}