MPI_Aint sendtype_extent = 0, recvtype_extent = 0; /* Datatype extent */
MPI_Aint true_lb, sendtype_true_extent, recvtype_true_extent;
MPI_Comm shmem_comm, leader_comm;
- void* tmp_buf;
+ void* tmp_buf = NULL;
//if not set (use of the algo directly, without mvapich2 selector)