requests_ = new std::vector<MPI_Request>();
mut_=xbt_mutex_init();
lock_mut_=xbt_mutex_init();
+ atomic_mut_=xbt_mutex_init();
connected_wins_ = new MPI_Win[comm_size];
connected_wins_[rank_] = this;
count_ = 0;
MSG_barrier_destroy(bar_);
xbt_mutex_destroy(mut_);
xbt_mutex_destroy(lock_mut_);
+ xbt_mutex_destroy(atomic_mut_);
if(allocated_ !=0)
xbt_free(base_);
int size = static_cast<int>(reqs->size());
// start all requests that have been prepared by another process
if (size > 0) {
- for (const auto& req : *reqs) {
- if (req && (req->flags() & PREPARED))
- req->start();
- }
-
MPI_Request* treqs = &(*reqs)[0];
-
Request::waitall(size, treqs, MPI_STATUSES_IGNORE);
}
count_=0;
}
int Win::put( void *origin_addr, int origin_count, MPI_Datatype origin_datatype, int target_rank,
- MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype)
+ MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype, MPI_Request* request)
{
//get receiver pointer
MPI_Win recv_win = connected_wins_[target_rank];
MPI_Request rreq = Request::rma_recv_init(recv_addr, target_count, target_datatype, smpi_process()->index(),
comm_->group()->index(target_rank), SMPI_RMA_TAG+1, recv_win->comm_, MPI_OP_NULL);
+ //start send
+ sreq->start();
+
+ if(request!=nullptr){
+ *request=sreq;
+ }else{
+ xbt_mutex_acquire(mut_);
+ requests_->push_back(sreq);
+ xbt_mutex_release(mut_);
+ }
+
//push request to receiver's win
xbt_mutex_acquire(recv_win->mut_);
recv_win->requests_->push_back(rreq);
+ rreq->start();
xbt_mutex_release(recv_win->mut_);
- //start send
- sreq->start();
- //push request to sender's win
- xbt_mutex_acquire(mut_);
- requests_->push_back(sreq);
- xbt_mutex_release(mut_);
}else{
Datatype::copy(origin_addr, origin_count, origin_datatype, recv_addr, target_count, target_datatype);
+ if(request!=nullptr)
+ *request = MPI_REQUEST_NULL;
}
return MPI_SUCCESS;
}
int Win::get( void *origin_addr, int origin_count, MPI_Datatype origin_datatype, int target_rank,
- MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype)
+ MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype, MPI_Request* request)
{
//get sender pointer
MPI_Win send_win = connected_wins_[target_rank];
//start recv
rreq->start();
- //push request to sender's win
- xbt_mutex_acquire(mut_);
- requests_->push_back(rreq);
- xbt_mutex_release(mut_);
+
+ if(request!=nullptr){
+ *request=rreq;
+ }else{
+ xbt_mutex_acquire(mut_);
+ requests_->push_back(rreq);
+ xbt_mutex_release(mut_);
+ }
+
}else{
Datatype::copy(send_addr, target_count, target_datatype, origin_addr, origin_count, origin_datatype);
+ if(request!=nullptr)
+ *request=MPI_REQUEST_NULL;
}
return MPI_SUCCESS;
int Win::accumulate( void *origin_addr, int origin_count, MPI_Datatype origin_datatype, int target_rank,
- MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype, MPI_Op op)
+ MPI_Aint target_disp, int target_count, MPI_Datatype target_datatype, MPI_Op op, MPI_Request* request)
{
//get receiver pointer
smpi_process()->index(), comm_->group()->index(target_rank), SMPI_RMA_TAG-3-count_, recv_win->comm_, op);
count_++;
+
+ //start send
+ sreq->start();
//push request to receiver's win
xbt_mutex_acquire(recv_win->mut_);
recv_win->requests_->push_back(rreq);
+ rreq->start();
xbt_mutex_release(recv_win->mut_);
- //start send
- sreq->start();
- //push request to sender's win
- xbt_mutex_acquire(mut_);
- requests_->push_back(sreq);
- xbt_mutex_release(mut_);
+ if(request!=nullptr){
+ *request=sreq;
+ }else{
+ xbt_mutex_acquire(mut_);
+ requests_->push_back(sreq);
+ xbt_mutex_release(mut_);
+ }
return MPI_SUCCESS;
}
int Win::get_accumulate( void *origin_addr, int origin_count, MPI_Datatype origin_datatype, void *result_addr,
int result_count, MPI_Datatype result_datatype, int target_rank, MPI_Aint target_disp, int target_count,
- MPI_Datatype target_datatype, MPI_Op op){
+ MPI_Datatype target_datatype, MPI_Op op, MPI_Request* request){
//get sender pointer
MPI_Win send_win = connected_wins_[target_rank];
return MPI_ERR_ARG;
XBT_DEBUG("Entering MPI_Get_accumulate from %d", target_rank);
-
+ //need to be sure ops are correctly ordered, so finish request here ? slow.
+ MPI_Request req;
+ xbt_mutex_acquire(send_win->atomic_mut_);
get(result_addr, result_count, result_datatype, target_rank,
- target_disp, target_count, target_datatype);
- accumulate(origin_addr, origin_count, origin_datatype, target_rank,
- target_disp, target_count, target_datatype, op);
-
+ target_disp, target_count, target_datatype, &req);
+ if (req != MPI_REQUEST_NULL)
+ Request::wait(&req, MPI_STATUS_IGNORE);
+ if(op!=MPI_NO_OP)
+ accumulate(origin_addr, origin_count, origin_datatype, target_rank,
+ target_disp, target_count, target_datatype, op, &req);
+ if (req != MPI_REQUEST_NULL)
+ Request::wait(&req, MPI_STATUS_IGNORE);
+ xbt_mutex_release(send_win->atomic_mut_);
return MPI_SUCCESS;
}
+int Win::compare_and_swap(void *origin_addr, void *compare_addr,
+ void *result_addr, MPI_Datatype datatype, int target_rank,
+ MPI_Aint target_disp){
+ //get sender pointer
+ MPI_Win send_win = connected_wins_[target_rank];
+
+ if(opened_==0){//check that post/start has been done
+ // no fence or start .. lock ok ?
+ int locked=0;
+ for(auto it : send_win->lockers_)
+ if (it == comm_->rank())
+ locked = 1;
+ if(locked != 1)
+ return MPI_ERR_WIN;
+ }
+
+ XBT_DEBUG("Entering MPI_Compare_and_swap with %d", target_rank);
+ MPI_Request req;
+ xbt_mutex_acquire(send_win->atomic_mut_);
+ get(result_addr, 1, datatype, target_rank,
+ target_disp, 1, datatype, &req);
+ if (req != MPI_REQUEST_NULL)
+ Request::wait(&req, MPI_STATUS_IGNORE);
+ if(! memcmp (result_addr, compare_addr, datatype->get_extent() )){
+ put(origin_addr, 1, datatype, target_rank,
+ target_disp, 1, datatype);
+ }
+ xbt_mutex_release(send_win->atomic_mut_);
+ return MPI_SUCCESS;
+}
+
int Win::start(MPI_Group group, int assert){
/* From MPI forum advices
The call to MPI_WIN_COMPLETE does not return until the put call has completed at the origin; and the target window
}
int Win::lock(int lock_type, int rank, int assert){
- if(opened_!=0)
- return MPI_ERR_WIN;
-
MPI_Win target_win = connected_wins_[rank];
if ((lock_type == MPI_LOCK_EXCLUSIVE && target_win->mode_ != MPI_LOCK_SHARED)|| target_win->mode_ == MPI_LOCK_EXCLUSIVE){
target_win->lockers_.push_back(comm_->rank());
- int finished = finish_comms();
+ int finished = finish_comms(rank);
XBT_DEBUG("Win_lock %d - Finished %d RMA calls", rank, finished);
-
+ finished = target_win->finish_comms(rank_);
+ XBT_DEBUG("Win_lock target %d - Finished %d RMA calls", rank, finished);
return MPI_SUCCESS;
}
-int Win::unlock(int rank){
- if(opened_!=0)
- return MPI_ERR_WIN;
+int Win::lock_all(int assert){
+ int i=0;
+ int retval = MPI_SUCCESS;
+ for (i=0; i<comm_->size();i++){
+ int ret = this->lock(MPI_LOCK_SHARED, i, assert);
+ if(ret != MPI_SUCCESS)
+ retval = ret;
+ }
+ return retval;
+}
+int Win::unlock(int rank){
MPI_Win target_win = connected_wins_[rank];
int target_mode = target_win->mode_;
target_win->mode_= 0;
xbt_mutex_release(target_win->lock_mut_);
}
- int finished = finish_comms();
+ int finished = finish_comms(rank);
XBT_DEBUG("Win_unlock %d - Finished %d RMA calls", rank, finished);
+ finished = target_win->finish_comms(rank_);
+ XBT_DEBUG("Win_unlock target %d - Finished %d RMA calls", rank, finished);
+ return MPI_SUCCESS;
+}
+
+int Win::unlock_all(){
+ int i=0;
+ int retval = MPI_SUCCESS;
+ for (i=0; i<comm_->size();i++){
+ int ret = this->unlock(i);
+ if(ret != MPI_SUCCESS)
+ retval = ret;
+ }
+ return retval;
+}
+
+int Win::flush(int rank){
+ MPI_Win target_win = connected_wins_[rank];
+ int finished = finish_comms(rank);
+ XBT_DEBUG("Win_flush on local %d - Finished %d RMA calls", rank_, finished);
+ finished = target_win->finish_comms(rank_);
+ XBT_DEBUG("Win_flush on remote %d - Finished %d RMA calls", rank, finished);
+ return MPI_SUCCESS;
+}
+
+int Win::flush_local(int rank){
+ int finished = finish_comms(rank);
+ XBT_DEBUG("Win_flush_local for rank %d - Finished %d RMA calls", rank, finished);
+ return MPI_SUCCESS;
+}
+int Win::flush_all(){
+ int i=0;
+ int finished = 0;
+ finished = finish_comms();
+ XBT_DEBUG("Win_flush_all on local - Finished %d RMA calls", finished);
+ for (i=0; i<comm_->size();i++){
+ finished = connected_wins_[i]->finish_comms(rank_);
+ XBT_DEBUG("Win_flush_all on %d - Finished %d RMA calls", i, finished);
+ }
+ return MPI_SUCCESS;
+}
+
+int Win::flush_local_all(){
+ int finished = finish_comms();
+ XBT_DEBUG("Win_flush_local_all - Finished %d RMA calls", finished);
return MPI_SUCCESS;
}
std::vector<MPI_Request> *reqqs = requests_;
int size = static_cast<int>(reqqs->size());
if (size > 0) {
- // start all requests that have been prepared by another process
- for (const auto& req : *reqqs) {
- if (req && (req->flags() & PREPARED))
- req->start();
- }
-
MPI_Request* treqs = &(*reqqs)[0];
Request::waitall(size, treqs, MPI_STATUSES_IGNORE);
reqqs->clear();
return size;
}
+int Win::finish_comms(int rank){
+ xbt_mutex_acquire(mut_);
+ //Finish own requests
+ std::vector<MPI_Request> *reqqs = requests_;
+ int size = static_cast<int>(reqqs->size());
+ if (size > 0) {
+ size = 0;
+ std::vector<MPI_Request>* myreqqs = new std::vector<MPI_Request>();
+ std::vector<MPI_Request>::iterator iter = reqqs->begin();
+ while (iter != reqqs->end()){
+ if(((*iter)!=MPI_REQUEST_NULL) && (((*iter)->src() == rank) || ((*iter)->dst() == rank))){
+ myreqqs->push_back(*iter);
+ iter = reqqs->erase(iter);
+ size++;
+ } else {
+ ++iter;
+ }
+ }
+ if(size >0){
+ MPI_Request* treqs = &(*myreqqs)[0];
+ Request::waitall(size, treqs, MPI_STATUSES_IGNORE);
+ myreqqs->clear();
+ delete myreqqs;
+ }
+ }
+ xbt_mutex_release(mut_);
+ return size;
+}
+
}
}
