Search found 2 matches

by ucecmtd
Fri Feb 10, 2017 2:22 pm
Forum: VTSTTools
Topic: LBFGS Convergence Criterion
Replies: 3
Views: 14253

Re: LBFGS Convergence Criterion

Sure, I've attached them to this post - though checking the calculation I used the CG instead of FIRE for the preliminary calculation. The issue with LBFGS is the same though.

Yeah, that's right - the forces on each free-to-move atom in the OUTCAR have converged to be lower than -EDIFFG (0.001 ...
by ucecmtd
Fri Feb 10, 2017 10:07 am
Forum: VTSTTools
Topic: LBFGS Convergence Criterion
Replies: 3
Views: 14253

LBFGS Convergence Criterion

Hello,

Does anybody know if there is a different convergence criterion when using LBFGS as the optimizer in a dimer calculation?

The reason I ask is as follows:

I have a calculation where I run a preliminary calculation with lowered plane wave kinetic energy, SCF tolerance and k-point sampling ...