Troubles with Intel MPI library

Hello, im student and have just started to learn HPC using Intel MPI lib. I created two virtual machines wich using CentOs. First of all i ran this code   "mpirun -n 2 -ppn 1 ip1, ip2 hostname" and it worked well and when I tried to run test program on one node it worked. But when i tried to run test program from Intel MPI tests i got this error. Also i used MPICH, but without such troubles.