<div><p>Hi All,</p><p>I am attempting to perform a TD-DFT calculation with a hybrid functional (I have tried PBE0 and CAM-B3LYP) for a (TiO2)35(H2O)17 system.</p><p>Using the PBE functional, the calculation proceeded without issues. However, when applying hybrid functionals, I encountered the following error message:</p><font color="#ff0000"> HFX_MEM_INFO| Est. max. program size before HFX [MiB]: 7115<br /><br /> *** WARNING in hfx_energy_potential.F:592 :: The Kohn Sham matrix is not ***<br /> *** 100% occupied. This may result in incorrect Hartree-Fock results. Try ***<br /> *** to decrease EPS_PGF_ORB and EPS_FILTER_MATRIX in the QS section. For ***<br /> *** more information see FAQ: https://www.cp2k.org/faq:hfx_eps_warning ***</font><br /></div><p>I have significantly reduced the values of both EPS_PGF_ORB and EPS_FILTER_MATRIX as suggested, but the error persists.</p><p>Is there anything else I could try to resolve this issue?</p><p>For reference, I have attached my input and output .log files.</p><p>Thank you in advance for your assistance!</p><p><br /></p><p>Best regards,</p><div><br /></div><div>Miguel</div>
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