XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_receiver, smpi,
"Logging specific to SMPI (receiver)");
-int smpi_receiver(int argc, char **argv)
+int smpi_receiver(int argc, char*argv[])
{
+ smpi_host_data_t mydata = SIMIX_process_get_data(SIMIX_process_self());
smx_process_t self;
- int index;
+ int index = mydata->index;
xbt_fifo_t request_queue;
- smx_mutex_t request_queue_mutex;
xbt_fifo_t message_queue;
- smx_mutex_t message_queue_mutex;
int running_hosts_count;
self = SIMIX_process_self();
- // make sure root is done before own initialization
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- while (!smpi_global->root_ready) {
- SIMIX_cond_wait(smpi_global->start_stop_cond,
- smpi_global->start_stop_mutex);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
- index = smpi_host_index();
-
- request_queue = smpi_global->pending_recv_request_queues[index];
- request_queue_mutex =
- smpi_global->pending_recv_request_queues_mutexes[index];
+ request_queue = mydata->pending_recv_request_queue;
message_queue = smpi_global->received_message_queues[index];
- message_queue_mutex = smpi_global->received_message_queues_mutexes[index];
smpi_global->receiver_processes[index] = self;
- // wait for all nodes to signal initializatin complete
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- smpi_global->ready_process_count++;
- if (smpi_global->ready_process_count >= 3 * smpi_global->host_count) {
- SIMIX_cond_broadcast(smpi_global->start_stop_cond);
- }
- while (smpi_global->ready_process_count < 3 * smpi_global->host_count) {
- SIMIX_cond_wait(smpi_global->start_stop_cond,
- smpi_global->start_stop_mutex);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
-
do {
// FIXME: better algorithm, maybe some kind of balanced tree? or a heap?
- // FIXME: not the best way to request multiple locks...
- SIMIX_mutex_lock(request_queue_mutex);
- SIMIX_mutex_lock(message_queue_mutex);
- for (request_item = xbt_fifo_get_first_item(request_queue);
- NULL != request_item;
- request_item = xbt_fifo_get_next_item(request_item)) {
- request = xbt_fifo_get_item_content(request_item);
- for (message_item = xbt_fifo_get_first_item(message_queue);
- NULL != message_item;
- message_item = xbt_fifo_get_next_item(message_item)) {
- message = xbt_fifo_get_item_content(message_item);
+ xbt_fifo_foreach(request_queue,request_item,request,smpi_mpi_request_t){
+ xbt_fifo_foreach(message_queue,message_item,message, smpi_received_message_t) {
+
if (request->comm == message->comm &&
(MPI_ANY_SOURCE == request->src || request->src == message->src)
&& (MPI_ANY_TAG == request->tag || request->tag == message->tag)) {
message = NULL;
stopsearch:
- SIMIX_mutex_unlock(message_queue_mutex);
- SIMIX_mutex_unlock(request_queue_mutex);
-
if (NULL == request || NULL == message) {
SIMIX_process_suspend(self);
} else {
}
- SIMIX_mutex_lock(smpi_global->running_hosts_count_mutex);
running_hosts_count = smpi_global->running_hosts_count;
- SIMIX_mutex_unlock(smpi_global->running_hosts_count_mutex);
} while (0 < running_hosts_count);