MPI_Win smpi_mpi_win_create( void *base, MPI_Aint size, int disp_unit, MPI_Info info, MPI_Comm comm){
- MPI_Win win;
-
int comm_size = smpi_comm_size(comm);
- int rank=smpi_comm_rank(comm);
+ int rank = smpi_comm_rank(comm);
XBT_DEBUG("Creating window");
- win = xbt_new(s_smpi_mpi_win_t, 1);
+ MPI_Win win = xbt_new(s_smpi_mpi_win_t, 1);
win->base = base;
win->size = size;
win->disp_unit = disp_unit;
must complete, without further dependencies. */
//naive, blocking implementation.
- int i=0,j=0;
- int size = smpi_group_size(group);
- MPI_Request* reqs = xbt_new0(MPI_Request, size);
-
- while(j!=size){
- int src=smpi_group_index(group,j);
- if(src!=smpi_process_index()&& src!=MPI_UNDEFINED){
- reqs[i]=smpi_irecv_init(nullptr, 0, MPI_CHAR, src,SMPI_RMA_TAG+4, MPI_COMM_WORLD);
- i++;
- }
- j++;
+ int i = 0;
+ int j = 0;
+ int size = smpi_group_size(group);
+ MPI_Request* reqs = xbt_new0(MPI_Request, size);
+
+ while (j != size) {
+ int src = smpi_group_index(group, j);
+ if (src != smpi_process_index() && src != MPI_UNDEFINED) {
+ reqs[i] = smpi_irecv_init(nullptr, 0, MPI_CHAR, src, SMPI_RMA_TAG + 4, MPI_COMM_WORLD);
+ i++;
+ }
+ j++;
}
size=i;
smpi_mpi_startall(size, reqs);
int smpi_mpi_win_post(MPI_Group group, int assert, MPI_Win win){
//let's make a synchronous send here
- int i=0,j=0;
+ int i = 0;
+ int j = 0;
int size = smpi_group_size(group);
MPI_Request* reqs = xbt_new0(MPI_Request, size);
xbt_die("Complete called on already opened MPI_Win");
XBT_DEBUG("Entering MPI_Win_Complete");
- int i=0,j=0;
+ int i = 0;
+ int j = 0;
int size = smpi_group_size(win->group);
MPI_Request* reqs = xbt_new0(MPI_Request, size);
size = static_cast<int>(reqqs->size());
XBT_DEBUG("Win_complete - Finishing %d RMA calls", size);
- // start all requests that have been prepared by another process
- for (auto req: *reqqs){
- if (req && (req->flags & PREPARED))
- smpi_mpi_start(req);
- }
+ if (size > 0) {
+ // start all requests that have been prepared by another process
+ for (const auto& req : *reqqs) {
+ if (req && (req->flags & PREPARED))
+ smpi_mpi_start(req);
+ }
- MPI_Request* treqs = &(*reqqs)[0];
- smpi_mpi_waitall(size,treqs,MPI_STATUSES_IGNORE);
- reqqs->clear();
+ MPI_Request* treqs = &(*reqqs)[0];
+ smpi_mpi_waitall(size, treqs, MPI_STATUSES_IGNORE);
+ reqqs->clear();
+ }
xbt_mutex_release(win->mut);
smpi_group_unuse(win->group);
size = static_cast<int>(reqqs->size());
XBT_DEBUG("Win_wait - Finishing %d RMA calls", size);
+ if (size > 0) {
+ // start all requests that have been prepared by another process
+ for (const auto& req : *reqqs) {
+ if (req && (req->flags & PREPARED))
+ smpi_mpi_start(req);
+ }
- // start all requests that have been prepared by another process
- for(auto req: *reqqs){
- if (req && (req->flags & PREPARED))
- smpi_mpi_start(req);
+ MPI_Request* treqs = &(*reqqs)[0];
+ smpi_mpi_waitall(size, treqs, MPI_STATUSES_IGNORE);
+ reqqs->clear();
}
-
- MPI_Request* treqs = &(*reqqs)[0];
- smpi_mpi_waitall(size,treqs,MPI_STATUSES_IGNORE);
- reqqs->clear();
xbt_mutex_release(win->mut);
smpi_group_unuse(win->group);