I managed to decrease the number of coordinates generated by deleting angles using
$zmat auto=.t. dlc=.t.
This deck eliminated all torsions and more than 60% angles, and no additional memory was requested when generating DLC. I just don't know if the geometry optimization will be efficient .
On Mon Jul 13 '15 1:37pm, David G. wrote
>Dear Firefly users
>In a fullerene like structure the optimization process started successfully and passed several steps till
>reached the current input file as you can see as attachment. When I tried to restart the job, Firefly requested more memory than former may be since the central atom is now closer to the fullerene and it is a new system. But this memory requirement is too much than I had expected so I was trying to turn off the direct scf and so on and all my efforts were not successful. I am thinking to use hard disk instead of memory but couldn't find any instruction in the manual. Would you please let me know whether there is a way to reduce the memory requirement of my job.
>Many Thanks, David
>attached please find the input and output files.