I am getting error while executing my parallel code on 4 number of processors. librdmacm: couldn't read ABI version. librdmacm: assuming: 4 CMA: unable to get RDMA device list -------------------------------------------------------------------------- [[55255,1],0]: A high-performance Open MPI point-to-point messaging module was unable to find any relevant network interfaces: Module: OpenFabrics (openib) Host: barq.seecs.edu.pk Another transport will be used instead, although this may result in lower performance. -------------------------------------------------------------------------- librdmacm: couldn't read ABI version. librdmacm: assuming: 4 CMA: unable to get RDMA device list librdmacm: couldn't read ABI version. librdmacm: assuming: 4 CMA: unable to get RDMA device list librdmacm: couldn't read ABI version. librdmacm: assuming: 4 CMA: unable to get RDMA device list Can any one guide me that how can I fix it ? ~Regards Saqib Khan