need to:
# dnf install libgfortran libtorque numactl # export PATH=$PATH:/usr/lib64/openmpi/bin # export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib64/openmpi/lib then:
# ./waf configure --enable-sudo --enable-examples --enable-tests --enable-mpi --with-openflow=/opt/tools/network_simulators/ns3/ns-allinone-3.25/openflow/
