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());
+ smpi_process_data_t mydata = SIMIX_process_get_data(SIMIX_process_self());
smx_process_t self;
int index = mydata->index;
request_queue = mydata->pending_recv_request_queue;
message_queue = mydata->received_message_queue;
+ DEBUG0("Up and running");
+
+
while (1) {
// FIXME: better algorithm, maybe some kind of balanced tree? or a heap?
- xbt_fifo_foreach(request_queue,request_item,request,smpi_mpi_request_t){
- xbt_fifo_foreach(message_queue,message_item,message, smpi_received_message_t) {
+ DEBUG0("Look for matching");
+ xbt_fifo_foreach(request_queue, request_item, request, smpi_mpi_request_t) {
+ xbt_fifo_foreach(message_queue, message_item, message,
+ smpi_received_message_t) {
+//#define DEBUG_MATCH
+#ifdef DEBUG_MATCH
+ printf("[%s] try match (req_src=%d,msg_src=%d)x(req_tag=%d,msg_tag=%d)\n",
+ __FILE__,request->src,message->src,request->tag, message->tag);
+#endif
if (request->comm == message->comm &&
(MPI_ANY_SOURCE == request->src || request->src == message->src)
&& (MPI_ANY_TAG == request->tag || request->tag == message->tag)) {
xbt_fifo_free_item(request_item);
xbt_fifo_remove_item(message_queue, message_item);
xbt_fifo_free_item(message_item);
+#ifdef DEBUG_MATCH
+ printf("[%s] found match: req_src=%d,msg_src=%d)x(req_tag=%d,msg_tag=%d)\n",
+ __FILE__,request->src,message->src,request->tag, message->tag);
+#endif
+ DEBUG4("found match: (req_src=%d,msg_src=%d)x(req_tag=%d,msg_tag=%d)",
+ request->src,message->src,request->tag, message->tag);
goto stopsearch;
+ } else {
+ DEBUG4("Matching fails: (req_src=%d,msg_src=%d)x(req_tag=%d,msg_tag=%d)",
+ request->src,message->src,request->tag, message->tag);
}
}
}
message = NULL;
stopsearch:
- if (NULL != request) {
- if (NULL == message)
- DIE_IMPOSSIBLE;
-
- SIMIX_mutex_lock(request->mutex);
- memcpy(request->buf, message->buf,
- request->datatype->size * request->count);
- request->src = message->src;
- request->data = message->data;
- request->forward = message->forward;
-
- if (0 == request->forward) {
- request->completed = 1;
- SIMIX_cond_broadcast(request->cond);
- } else {
- request->src = request->comm->index_to_rank_map[index];
- request->dst = (request->src + 1) % request->comm->size;
- smpi_mpi_isend(request);
- }
-
- SIMIX_mutex_unlock(request->mutex);
-
- xbt_free(message->buf);
- xbt_mallocator_release(smpi_global->message_mallocator, message);
-
- } else if (mydata->finalize>0) { /* main wants me to die and nothing to do */
- // FIXME: display the list of remaining requests and messages (user code synchronization faulty?)
- mydata->finalize--;
- SIMIX_cond_signal(mydata->cond);
- return 0;
+ if (NULL != request) {
+ if (NULL == message)
+ DIE_IMPOSSIBLE;
+
+ SIMIX_mutex_lock(request->mutex);
+ memcpy(request->buf, message->buf,
+ request->datatype->size * request->count);
+ request->src = message->src;
+ request->data = message->data;
+ request->forward = message->forward;
+
+ if (0 == request->forward) {
+ request->completed = 1;
+ SIMIX_cond_broadcast(request->cond);
+ } else {
+ request->src = request->comm->index_to_rank_map[index];
+ request->dst = (request->src + 1) % request->comm->size;
+ smpi_mpi_isend(request);
+ }
+
+ SIMIX_mutex_unlock(request->mutex);
+
+ xbt_free(message->buf);
+ xbt_mallocator_release(smpi_global->message_mallocator, message);
+
+ } else if (mydata->finalize > 0) { /* main wants me to die and nothing to do */
+ // FIXME: display the list of remaining requests and messages (user code synchronization faulty?)
+ DEBUG0("Main wants me to die and I'm done. Bye, guys.");
+ mydata->finalize--;
+ SIMIX_cond_signal(mydata->cond);
+ return 0;
} else {
- SIMIX_process_suspend(self);
+ DEBUG0("Nothing to do. Let's get a nap");
+ SIMIX_process_suspend(self);
+ DEBUG0("Uh? Someone called me?");
}
}