Recommended settings in configure.wrf (intel compiler: ifort, mpiifort):
CFLAGS_LOCAL = -w -O3 -ip -msse3 -fno-alias FCBASEOPTS = -w -ftz -align all -fno-alias -msse3 -fp-model precise $(FCDEBUG) $(FORMAT_FREE) $(BYTESWAPIO)
Run the code with:
mpirun -machinefile $TMPDIR/machines -envall -np $NSLOTS ./wrf.exe