void thorium_actor_send_range_default(struct thorium_actor *actor, struct core_vector *actors,
int first, int last,
struct thorium_message *message)
{
#ifdef USE_BINOMIAL_TREE
struct core_vector destinations;
struct core_memory_pool *ephemeral_memory;
int name;
ephemeral_memory = thorium_actor_get_ephemeral_memory(actor);
core_vector_init(&destinations, sizeof(int));
core_vector_set_memory_pool(&destinations, ephemeral_memory);
core_vector_copy_range(actors, first, last, &destinations);
/*
* Set the source now.
*/
name = thorium_actor_name(actor);
thorium_message_set_source(message, name);
thorium_actor_send_range_binomial_tree(actor, &destinations, message);
core_vector_destroy(&destinations);
#else
thorium_actor_send_range_loop(actor, actors, first, last, message);
#endif
}
void thorium_actor_send_range_default(struct thorium_actor *actor, struct core_vector *actors,
int first, int last,
struct thorium_message *message)
{
int use_binomial_tree;
struct core_vector destinations;
struct core_memory_pool *ephemeral_memory;
int name;
int action;
action = thorium_message_action(message);
use_binomial_tree = 0;
#ifdef USE_BINOMIAL_TREE
/*
* ACTION_ASK_TO_STOP basically kills actors (if they agree to).
* It is a bad idea to use a binomial tree to send this death signal
* since intermediate actors can die before acting as relays.
*/
if (action != ACTION_ASK_TO_STOP)
use_binomial_tree = 1;
#endif
if (!use_binomial_tree) {
thorium_actor_send_range_loop(actor, actors, first, last, message);
return;
}
tracepoint(thorium_binomial_tree, send_range, message, (int)core_vector_size(actors));
/*
* Otherwise, use the binomial tree code path. This algorithm is better since it distributed
* the sending operations intot a binomial tree where there are a lot of intermediate
* actors (to be exact, the number of intermediate actors is close to log2(actors.size)).
*/
ephemeral_memory = thorium_actor_get_ephemeral_memory(actor);
core_vector_init(&destinations, sizeof(int));
core_vector_set_memory_pool(&destinations, ephemeral_memory);
CORE_DEBUGGER_ASSERT(core_vector_empty(&destinations));
core_vector_copy_range(actors, first, last, &destinations);
/*
* Set the source now.
*/
name = thorium_actor_name(actor);
thorium_message_set_source(message, name);
thorium_actor_send_range_binomial_tree(actor, &destinations, message);
core_vector_destroy(&destinations);
}
