#include "private.h"
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_receiver, smpi, "Logging specific to SMPI (receiver)");
+
int smpi_receiver(int argc, char **argv)
{
smx_process_t self;
smx_mutex_t request_queue_mutex;
xbt_fifo_t message_queue;
smx_mutex_t message_queue_mutex;
- // FIXME: remove? also sender
- int size;
int running_hosts_count;
// make sure root is done before own initialization
SIMIX_mutex_lock(smpi_global->start_stop_mutex);
- if (!smpi_global->root_ready) {
+ 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();
- size = smpi_global->host_count;
request_queue = smpi_global->pending_recv_request_queues[index];
request_queue_mutex = smpi_global->pending_recv_request_queues_mutexes[index];
// 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 * size) {
- SIMIX_cond_wait(smpi_global->start_stop_cond, smpi_global->start_stop_mutex);
- } else {
+ 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 {
NULL != message_item;
message_item = xbt_fifo_get_next_item(message_item)) {
message = xbt_fifo_get_item_content(message_item);
- if (request->comm == message->comm &&
- (MPI_ANY_SOURCE == request->src || request->src == message->src) &&
- (MPI_ANY_TAG == request->tag || request->tag == message->tag)) {
+ 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_remove_item(request_queue, request_item);
xbt_fifo_remove_item(message_queue, message_item);
goto stopsearch;
SIMIX_mutex_lock(request->mutex);
memcpy(request->buf, message->buf, request->datatype->size * request->count);
request->src = message->src;
- request->completed = 1;
- SIMIX_cond_broadcast(request->cond);
+ 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);