mpiifort -c mkl_dfti.f90
#
mpiifort -o out test.f90  -Wl,--start-group $MKLROOT/lib/intel64/libmkl_intel_lp64.a $MKLROOT/lib/intel64/libmkl_sequential.a $MKLROOT/lib/intel64/libmkl_core.a -Wl,--end-group -lpthread -lm -ldl