if (this == MPI_COMM_UNINITIALIZED)
return smpi_process()->comm_world()->split(color, key);
int system_tag = -123;
- int* recvbuf;
MPI_Group group_root = nullptr;
MPI_Group group_out = nullptr;
int myrank = this->rank();
int size = this->size();
/* Gather all colors and keys on rank 0 */
- int* sendbuf = xbt_new(int, 2);
- sendbuf[0] = color;
- sendbuf[1] = key;
- if (myrank == 0) {
- recvbuf = xbt_new(int, 2 * size);
- } else {
- recvbuf = nullptr;
- }
- gather__default(sendbuf, 2, MPI_INT, recvbuf, 2, MPI_INT, 0, this);
- xbt_free(sendbuf);
+ const std::array<int, 2> sendbuf = {{color, key}};
+ std::vector<int> recvbuf;
+ if (myrank == 0)
+ recvbuf.resize(2 * size);
+ gather__default(sendbuf.data(), 2, MPI_INT, recvbuf.data(), 2, MPI_INT, 0, this);
/* Do the actual job */
if (myrank == 0) {
- MPI_Group* group_snd = xbt_new(MPI_Group, size);
+ std::vector<MPI_Group> group_snd(size);
std::vector<std::pair<int, int>> rankmap;
rankmap.reserve(size);
for (int i = 0; i < size; i++) {
s4u::Actor* actor = group->actor(rankmap[j].second);
group_out->set_mapping(actor, j);
}
- MPI_Request* requests = xbt_new(MPI_Request, rankmap.size());
+ std::vector<MPI_Request> requests(rankmap.size());
int reqs = 0;
for (auto const& rank : rankmap) {
if (rank.second != 0) {
if(i != 0 && group_out != MPI_COMM_WORLD->group() && group_out != MPI_GROUP_EMPTY)
Group::unref(group_out);
- Request::waitall(reqs, requests, MPI_STATUS_IGNORE);
- xbt_free(requests);
+ Request::waitall(reqs, requests.data(), MPI_STATUS_IGNORE);
}
}
- xbt_free(recvbuf);
- xbt_free(group_snd);
group_out = group_root; /* exit with root's group */
} else {
if(color != MPI_UNDEFINED) {
int min_index = INT_MAX; // the minimum index will be the leader
for (auto& actor : actor_list) {
int index = actor.get_pid();
- if (this->group()->rank(actor.ciface()) != MPI_UNDEFINED) { // Is this process in the current group?
+ if (this->group()->rank(actor.get_ciface()) != MPI_UNDEFINED) { // Is this process in the current group?
intra_comm_size++;
if (index < min_index)
min_index = index;
auto* group_intra = new Group(intra_comm_size);
int i = 0;
for (auto& actor : actor_list) {
- if (this->group()->rank(actor.ciface()) != MPI_UNDEFINED) {
- group_intra->set_mapping(actor.ciface(), i);
+ if (this->group()->rank(actor.get_ciface()) != MPI_UNDEFINED) {
+ group_intra->set_mapping(actor.get_ciface(), i);
i++;
}
}
return MPI_COMM_SELF;
} else if(id==0){
return MPI_COMM_WORLD;
- } else if(F2C::f2c_lookup() != nullptr && id >= 0) {
- char key[KEY_SIZE];
- const auto& lookup = F2C::f2c_lookup();
- auto comm = lookup->find(get_key(key, id));
+ } else if (F2C::lookup() != nullptr && id >= 0) {
+ const auto& lookup = F2C::lookup();
+ auto comm = lookup->find(id);
return comm == lookup->end() ? MPI_COMM_NULL : static_cast<MPI_Comm>(comm->second);
} else {
return MPI_COMM_NULL;
}
void Comm::free_f(int id) {
- char key[KEY_SIZE];
- F2C::f2c_lookup()->erase(get_key(key, id));
+ F2C::lookup()->erase(id);
}
void Comm::add_rma_win(MPI_Win win){