<div>Dear PWSCF users,</div>
<div> I have encountered a problem recently. When I ran a self-consistent calculation of a large system, the Davidson diagonaliztion works well. However when I ran a non-self-consistent calculation of the same system with the same k-point density and 'temperature', the code collapses because 'from cdiaghg : error # 28286 info=/= 0'. It seems that the Davidson diagonalization does not work well here.</div>
<div> What can I do to avoid that error? Is there anything wrong with the charge density?</div>
<div> Thank you very much.</div>
<div> Hanghui</div>
<div> </div>
<div>Department of Physics</div>
<div>Yale University</div>