<span style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">Dear CP2K experts</span><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0);"></span> I am trying to perform geometry optimization by fixing some atoms of adsorbate and zeolite. The optimized structure will be used as initial guess for dimer calculation. At step 7 of geometry optimization, the structure falls apart. </div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><img alt="Screenshot 2024-10-23 220658.png" width="452px" height="523px" src="cid:daf7432b-0b5d-4aa0-bf28-8678b85bd8d5" /><img alt="Screenshot 2024-10-23 220730.png" width="452px" height="523px" src="cid:640fb1fb-0c3c-4745-b87f-0ea2964da717" /><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">Part of my inputs are</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">...</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0); overflow-wrap: break-word; white-space-collapse: preserve;"> &CG
MAX_STEEP_STEPS 0
&LINE_SEARCH
TYPE 2PNT
&2PNT
MAX_ALLOWED_STEP 0.2
&END
&END LINE_SEARCH
&END CG</span><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0); overflow-wrap: break-word; white-space-collapse: preserve;"><br /></span></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0); overflow-wrap: break-word; white-space-collapse: preserve;">...</span></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0); overflow-wrap: break-word; white-space-collapse: preserve;">
<span style="overflow-wrap: break-word;"> &KPOINTS
SCHEME MONKHORST-PACK 2 2 1
SYMMETRY F
FULL_GRID T
PARALLEL_GROUP_SIZE 0
&END KPOINTS
&SCF
MAX_SCF 1000
EPS_SCF 9.9999999999999995E-07
SCF_GUESS RESTART
&OT F
MINIMIZER CG
PRECONDITIONER FULL_ALL
ENERGY_GAP 1.0000000000000000E-03
&END OT
&DIAGONALIZATION T
ALGORITHM STANDARD
&END DIAGONALIZATION
&OUTER_SCF T
EPS_SCF 9.9999999999999995E-07
MAX_SCF 50
&END OUTER_SCF
&END SCF
&QS
EPS_DEFAULT 1.0000000000000000E-10
EXTRAPOLATION USE_GUESS
METHOD GPW
&END QS</span>
</span></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0); overflow-wrap: break-word; white-space-collapse: preserve;"><br /></span></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><span style="color: rgb(0, 0, 0); overflow-wrap: break-word; white-space-collapse: preserve;"><br /></span></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">Recently I switch from Gamma point to KPOINTS with "<span style="color: rgb(0, 0, 0);">MONKHORST-PACK 2 2 1" to improve the accuracy of force evaluation, this issue happens since then.</span> Input and output files are attached. I am at entry level of CP2K. Much appreciation if you can provide thoughts about this issue.</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">Thank you,</div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;"><br /></div><div style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">Tian-Ning Chen</div>
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