test mpi comm
test mpi comm

RBigData/pbdADIOS,YupingLu/pbdADIOS,RBigData/pbdADIOS,YupingLu/pbdADIOS,go-ski/pbdADIOS,RBigData/pbdADIOS,YupingLu/pbdADIOS,RBigData/pbdADIOS,go-ski/pbdADIOS,go-ski/pbdADIOS