class Comm : public F2C, public Keyval{
friend Topo;
MPI_Group group_;
- SMPI_Topo_type topoType_;
+ SMPI_Topo_type topoType_ = MPI_INVALID_TOPO;
MPI_Topology topo_; // to be replaced by an union
- int refcount_;
- MPI_Comm leaders_comm_; // inter-node communicator
- MPI_Comm intra_comm_; // intra-node communicator . For MPI_COMM_WORLD this can't be used, as var is global.
- // use an intracomm stored in the process data instead
- int* leaders_map_; // who is the leader of each process
- int is_uniform_;
- int* non_uniform_map_; // set if smp nodes have a different number of processes allocated
- int is_blocked_; // are ranks allocated on the same smp node contiguous ?
+ int refcount_ = 1;
+ MPI_Comm leaders_comm_ = MPI_COMM_NULL; // inter-node communicator
+ MPI_Comm intra_comm_ = MPI_COMM_NULL; // intra-node communicator. For MPI_COMM_WORLD this can't be used, as var is
+ // global. Use an intracomm stored in the process data instead
+ int* leaders_map_ = nullptr; // who is the leader of each process
+ int is_uniform_ = 1;
+ int* non_uniform_map_ = nullptr; // set if smp nodes have a different number of processes allocated
+ int is_blocked_ = 0; // are ranks allocated on the same smp node contiguous ?
int is_smp_comm_; // set to 0 in case this is already an intra-comm or a leader-comm to avoid recursion
std::list<MPI_Win> rma_wins_; // attached windows for synchronization.
std::string name_;
- MPI_Info info_;
+ MPI_Info info_ = MPI_INFO_NULL;
int id_;
MPI_Errhandler errhandler_;
