David Koes has, I believe, already extended this limit: https://github.com/openbabel/openbabel/pull/1546
This is now in the master, if you want to try building from the git repo. It's a file size limit, rather than no. of molecules so using SMILES should also help. - Noel On 27 April 2017 at 11:55, Chris Swain <sw...@mac.com> wrote: > I just tried to create a fastsearch index for a large file containing > several million structures and I get this error. > > *** Open Babel Error in WriteChemObject > The datafile must not be larger than 4GB > > Is there a limit in the number of structures that can be handled? Or would > it be better to switch from an sdf file to SMILES as the input file? > > Cheers, > > Chris > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > OpenBabel-discuss mailing list > OpenBabel-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/openbabel-discuss > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ OpenBabel-discuss mailing list OpenBabel-discuss@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openbabel-discuss