#include "private.h"
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_sender, smpi,
+ "Logging specific to SMPI (sender)");
+
int smpi_sender(int argc, char **argv)
{
- smx_process_t self;
- smx_host_t shost;
- int index;
+ smx_process_t self;
+ smx_host_t shost;
+
+ int index;
+
+ xbt_fifo_t request_queue;
+ smx_mutex_t request_queue_mutex;
- xbt_fifo_t request_queue;
- smx_mutex_t request_queue_mutex;
+ int running_hosts_count;
- int running_hosts_count;
+ smpi_mpi_request_t request;
- smpi_mpi_request_t request;
+ smx_host_t dhost;
- smx_host_t dhost;
+ smx_action_t action;
- char communication[] = "communication";
- smx_action_t action;
+ e_surf_action_state_t state;
- smpi_received_message_t message;
+ smpi_received_message_t message;
- int dindex;
+ int dindex;
- smx_process_t receiver_process;
+ smx_process_t receiver_process;
- self = SIMIX_process_self();
- shost = SIMIX_host_self();
+ self = SIMIX_process_self();
+ shost = SIMIX_host_self();
- // make sure root is done before own initialization
- SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- if (!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();
- index = smpi_host_index();
+ request_queue = smpi_global->pending_send_request_queues[index];
+ request_queue_mutex =
+ smpi_global->pending_send_request_queues_mutexes[index];
- request_queue = smpi_global->pending_send_request_queues[index];
- request_queue_mutex = smpi_global->pending_send_request_queues_mutexes[index];
+ smpi_global->sender_processes[index] = self;
- smpi_global->sender_processes[index] = self;
+ do {
- // 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_wait(smpi_global->start_stop_cond, smpi_global->start_stop_mutex);
- } else {
- SIMIX_cond_broadcast(smpi_global->start_stop_cond);
- }
- SIMIX_mutex_unlock(smpi_global->start_stop_mutex);
+ SIMIX_mutex_lock(request_queue_mutex);
+ request = xbt_fifo_shift(request_queue);
+ SIMIX_mutex_unlock(request_queue_mutex);
- do {
+ if (NULL == request) {
+ SIMIX_process_suspend(self);
+ } else {
- SIMIX_mutex_lock(request_queue_mutex);
- request = xbt_fifo_shift(request_queue);
- SIMIX_mutex_unlock(request_queue_mutex);
+ message = xbt_mallocator_get(smpi_global->message_mallocator);
- if (NULL == request) {
- SIMIX_process_suspend(self);
- } else {
+ SIMIX_mutex_lock(request->mutex);
- message = xbt_mallocator_get(smpi_global->message_mallocator);
+ message->comm = request->comm;
+ message->src = request->comm->index_to_rank_map[index];
+ message->tag = request->tag;
+ message->data = request->data;
+ message->buf = xbt_malloc(request->datatype->size * request->count);
+ memcpy(message->buf, request->buf,
+ request->datatype->size * request->count);
- SIMIX_mutex_lock(request->mutex);
+ dindex = request->comm->rank_to_index_map[request->dst];
+ dhost = smpi_global->hosts[dindex];
- message->comm = request->comm;
- message->src = smpi_mpi_comm_rank(request->comm);
- message->tag = request->tag;
- message->buf = xbt_malloc(request->datatype->size * request->count);
- memcpy(message->buf, request->buf, request->datatype->size * request->count);
+ message->forward = (request->forward - 1) / 2;
+ request->forward = request->forward / 2;
- dindex = request->comm->rank_to_index_map[request->dst];
- dhost = smpi_global->hosts[dindex];
+ if (0 < request->forward) {
+ request->dst =
+ (request->dst + message->forward + 1) % request->comm->size;
+ SIMIX_mutex_lock(request_queue_mutex);
+ xbt_fifo_push(request_queue, request);
+ SIMIX_mutex_unlock(request_queue_mutex);
+ } else {
+ request->completed = 1;
+ }
- SIMIX_mutex_lock(smpi_global->received_message_queues_mutexes[dindex]);
- xbt_fifo_push(smpi_global->received_message_queues[dindex], message);
- SIMIX_mutex_unlock(smpi_global->received_message_queues_mutexes[dindex]);
+ action =
+ SIMIX_action_communicate(shost, dhost, "communication",
+ request->datatype->size * request->count,
+ -1.0);
- request->completed = 1;
+ SIMIX_register_action_to_condition(action, request->cond);
- action = SIMIX_action_communicate(shost, dhost, communication, request->datatype->size * request->count, -1.0);
+ for (state = SIMIX_action_get_state(action);
+ state == SURF_ACTION_READY ||
+ state == SURF_ACTION_RUNNING;
+ state = SIMIX_action_get_state(action)
+ ) {
+ SIMIX_cond_wait(request->cond, request->mutex);
+ }
- SIMIX_register_action_to_condition(action, request->cond);
- SIMIX_cond_wait(request->cond, request->mutex);
- SIMIX_unregister_action_to_condition(action, request->cond);
+ SIMIX_mutex_lock(smpi_global->received_message_queues_mutexes[dindex]);
+ xbt_fifo_push(smpi_global->received_message_queues[dindex], message);
+ SIMIX_mutex_unlock(smpi_global->received_message_queues_mutexes
+ [dindex]);
- SIMIX_mutex_unlock(request->mutex);
+ SIMIX_unregister_action_to_condition(action, request->cond);
+ SIMIX_action_destroy(action);
- //SIMIX_action_destroy(action);
+ SIMIX_mutex_unlock(request->mutex);
- // wake up receiver if necessary
- receiver_process = smpi_global->receiver_processes[dindex];
- if (SIMIX_process_is_suspended(receiver_process)) {
- SIMIX_process_resume(receiver_process);
- }
+ // wake up receiver if necessary
+ receiver_process = smpi_global->receiver_processes[dindex];
+ if (SIMIX_process_is_suspended(receiver_process)) {
+ SIMIX_process_resume(receiver_process);
+ }
- }
+ }
- 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);
+ 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);
+ } while (0 < running_hosts_count);
- return 0;
+ return 0;
}
