Old version downloads?


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Gets Around
You can get a git clone of the NWChem source code repository (original is subversion) here: https://github.com/jeffhammond/nwchem

That allows you to walk back to any older version of the source code, though you will have to do a bit of commit history searching to find the revision corresponding to release 5.0. There is no matching public repo of the Global Arrays toolkit, and it may be hard to build the old NWChem with one of the newer public Global Arrays snapshots. You may also need to install an older, contemporaneous Linux distribution in a virtual machine to build version 5.0 without a lot of trouble, since compilers and libraries have changed in the mean time.

Alternatively: if you are only interested in COSMO changes, you might want to examine the commit history of those files and selectively revert changes made since 5.0, then build a "modern NWChem with old COSMO code" hybrid so you don't have to try to get the entire old source tree built. If you can't reproduce old calculations that way then I guess you are stuck trying to build the whole thing.