I've lost track of some of my files and there have been some updates to nwchem (on my system) since I last posted. I'll re-run and make sure the problem still exists.
Just to answer your questions:
- I've been using the default memory.
- ARMCI_DEFAULT_SHMMAX is not set in my job script
- I don't see the "WARNING:armci_......." message
- The MA_USE_ARMCI_MEM is does not seem to be set