#include "simix/private.h"
#include "smpi.h"
+// FIXME: move globals into structure...
+
xbt_mallocator_t smpi_request_mallocator = NULL;
xbt_fifo_t *smpi_pending_send_requests = NULL;
xbt_fifo_t *smpi_pending_recv_requests = NULL;
return comm->size;
}
+// FIXME: smarter algorithm?
int smpi_mpi_comm_rank(smpi_mpi_communicator_t *comm, smx_host_t host)
{
int i;
int smpi_sender(int argc, char **argv)
{
+ smx_process_t self;
+ smx_host_t shost;
int rank;
+ xbt_fifo_t request_queue;
int size;
int running_hosts = 0;
smpi_mpi_request_t *request;
- smx_process_t self;
- smx_host_t shost, dhost;
+ smx_host_t dhost;
smx_action_t communicate_action;
smpi_mpi_request_t *scratch;
int drank;
- self = SIMIX_process_self();
+ self = SIMIX_process_self();
shost = SIMIX_host_self();
-
- rank = smpi_mpi_comm_rank(&smpi_mpi_comm_world, shost);
+ rank = smpi_mpi_comm_rank(&smpi_mpi_comm_world, shost);
// make sure root is done before own initialization
SIMIX_mutex_lock(init_mutex);
}
SIMIX_mutex_unlock(init_mutex);
+ request_queue = smpi_pending_send_requests[rank];
size = smpi_mpi_comm_size(&smpi_mpi_comm_world);
smpi_sender_processes[rank] = self;
while (0 < running_hosts) {
- request = xbt_fifo_shift(smpi_pending_send_requests[rank]);
+ request = xbt_fifo_shift(request_queue);
if (NULL == request) {
SIMIX_process_suspend(self);
int smpi_receiver(int argc, char **argv)
{
- smx_host_t dhost;
- int rank;
smx_process_t self;
+ int rank;
+ xbt_fifo_t request_queue;
+ xbt_fifo_t message_queue;
int size;
int running_hosts;
+ smpi_mpi_request_t *message;
+ smpi_mpi_request_t *request;
+ smx_process_t dproc;
- dhost = SIMIX_host_self();
- rank = smpi_mpi_comm_rank(&smpi_mpi_comm_world, dhost);
- self = SIMIX_process_self();
+ self = SIMIX_process_self();
+ rank = smpi_mpi_comm_rank(&smpi_mpi_comm_world, dhost);
// make sure root is done before own initialization
SIMIX_mutex_lock(init_mutex);
}
SIMIX_mutex_unlock(init_mutex);
+ request_queue = smpi_pending_receive_requests[rank];
+ message_queue = smpi_received_messages[rank];
size = smpi_mpi_comm_size(&smpi_mpi_comm_world);
- smpi_receiver_processes[rank] = SIMIX_process_self();
+ smpi_receiver_processes[rank] = self;
// wait for all nodes to signal initializatin complete
SIMIX_mutex_lock(init_mutex);
while (0 < running_hosts) {
- request = xbt_fifo_shift(smpi_pending_send_requests[rank]);
+ // FIXME: search for received messages and requests
if (NULL == request) {
SIMIX_process_suspend(self);
} else {
SIMIX_mutex_lock(request->mutex);
+ memcpy(request->buf, message->buf, request->count * request->type->size);
+ request->src = message->src;
+ reqeust->completed = 1;
+
+ while (dproc = xbt_fifo_shift(request->waitlist)) {
+ if (SIMIX_process_is_suspended(dproc)) {
+ SIMIX_process_resume(dproc);
+ }
+ }
+
+ SIMIX_mutex_unlock(request->mutex);
+ xbt_mallocator_release(smpi_request_mallocator, message);
}
SIMIX_mutex_lock(smpi_running_hosts_mutex);