sbgp/ibnet: set mca_sbgp_ibnet_component.mtu to IBV_MTU_1024 before registering it. cmr:v1.7:reviewer=pasha
Changing the MPI Datatype from MPI_LONG to OMPI_OFFSET_DATATYPE for send/recv offsets
don't close components that failed to register. cmr:v1.7:reviewer=rhc