Thank you prof. Kohlmeyer. I was able to make it to run. I did the following
- make clean-all
- make no-user-atc no-user-cuda no-user-molfile
- make openmpi
and it compiled without any difficulty and I am able to use user-phonon.
ps: prof. Kohlmeyer, i failed to realize that I did not press reply-to-all option earlier.