int leader_root, leader_of_root;
MPI_Status status;
MPI_Aint sendtype_extent = 0, recvtype_extent = 0; /* Datatype extent */
- MPI_Aint true_lb, sendtype_true_extent, recvtype_true_extent;
+ MPI_Aint true_lb = 0, sendtype_true_extent = 0, recvtype_true_extent = 0;
MPI_Comm shmem_comm, leader_comm;
void* tmp_buf = NULL;