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[交流] 稀土掺杂优化后的警告 求解决

稀土掺杂,粗精度算了两步就优化成功了,结果文件没有警告!提高精度后,优化成功但是结果文件中有警告!警告如下,仍是提高精度!求解决

trial step suggests complex energy landscape
                 in which simple line minimization will fail.
  
               - This is usually an indication that the forces/streses
                 are not accurate enough. Consider making the following changes:
  
                 1) Increase cutoff_energy or basis_precision
                 2) Reduce elec_energy_tol and/or elec_force_tol
                 3) Increase grid_scale
                 4) Increase fine_grid_scale

BFGS: Warning - Repeated consecutive reset of inverse Hessian
BFGS:           without satisfying convergence criteria which
BFGS:           looks like BFGS has run out of search directions.
BFGS: Warning - Lets try allowing some uphill steps and see if
BFGS:           we can get around this barrier.
BFGS: Warning - It is possible that the system may now converge to
BFGS:           a stationary point OTHER than the desired minimum.
BFGS: Hint    - this may be an indication that either:
BFGS:           a) you are using a poor guess at geom_frequency_est
BFGS:           and/or geom_modulus_est, or
BFGS:           b) you are using unrealistic convergence criteria.
BFGS:           Suggest therefore that you consider changing them!
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