If Octopus works properly on your system (i.e. you can recreate the results in the tutorials) but you have troubles using it for your own work, here are some things to try. Please feel free to add your own ideas here.
If you look at the file exec/parser.log, it will tell you the value of the variables that you set with the inp file, as well as all the variables which are taking their default value. This can sometimes be helpful in understanding the behavior of the program.
If you add
yes to your input file, you can examine the results of each iteration in the Self Consistent Field calculation. So if you also have the variable set to
density + potential, both the electron density and the Kohn-Sham, bare, exchange-correlation and Hartree potentials will be written to a folder (called, e.g.,
scf.0001) after each SCF iteration.
Set the variableto 1 for some extra diagnostic info and a stack trace with any fatal error, 2 to add a full stack strace, and 99 to get a stack trace from each MPI task when running in parallel.