Installation Remarks: 

1.) 
If installed on RH7 (merlin6 nodes), a library is missing for RH8 nodes (RA) : 
```
libGLEW.so.1.10  
```
To overcome this, copy this library from /usr/lib64/libGLEW.so.1.10.0 to the pmodules lib  folder and link accordingly to the right name if neccessary.


2.) 
Installed with the options --no-vmd-plugins --use-msgpackc=no, if these options should be available, probably other dependencies needed. 
Description from https://github.com/schrodinger/pymol-open-source/blob/master/INSTALL:
- msgpack-c 2.1.5+ (optional, for fast MMTF loading and export, disable with --use-msgpackc=no)
- mmtf-cpp (for fast MMTF export, disable with --use-msgpackc=no)
- libnetcdf (optional, disable with --no-vmd-plugins)