Fatal error in MPI_Recv: Message truncated, error stack:
MPI_Recv(207): MPI_Recv(buf=0x7fbffff438, count=1, MPI_INTEGER, src=0, tag=2034, comm=0x84000000, status=0x7fbffff360) failed
MPIDI_CH3U_Post_data_receive(1499): Message from rank 0 and tag 2034 truncated; 8 bytes received but buffer size is 4