<div dir="ltr"><div>Hi Tobias,</div><div><br></div><div>You are using CG optimiser in GEO_OPT, and by default, it uses "GOLD" as the linesearch method, which has not been implemented for TRANSITION_STATE search as suggested by your output. You will need to add the following section in &GEO_OPT.</div><div><br></div><div> &CG<br> &LINE_SEARCH<br> TYPE 2PNT<br> &END LINE_SEARCH<br> &END CG</div><div><br></div><div>SL</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 1 September 2015 at 17:11, Tobias Kraemer <span dir="ltr"><<a href="mailto:161brun...@gmail.com" target="_blank">161brun...@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all,<br><br><br>I am trying to re-optimise a transition state structure which has a spurious (small) imaginary mode on top of the large imaginary mode which corresponds to the transition state. I've also tested doing a constrained optimisation fixing selected atoms involved in the transition state, which also worked in this particular case. Howeve, I would also like to try our the dimer method for the purpose of re-optimising a transition state structure. To this end, I have composed an input, however, the job crashes and I keep getting an error message about certain line Search type not being implemented (looks quite obvious from the message). However, I can't seem to find what I need to change to make it work. Your advice would be much appreciated. The motion section can be found below, full input file also uploaded. <br><br>Any ideas on how to correctly set up a calculation using the dimer method are welcome<br><br><br>Thanks for your help<br><br>Tobias<br><br><br> ************************************************************************<br> *** 16:48:48 ERRORL2 in cg_utils:cg_linmin processor 0 :: err=-1000 ***<br> *** UNIMPLEMENTED, Line Search type not yet implemented in CG for TS ***<br> *** search. ***<br> ************************************************************************<br><br><br> ===== Routine Calling Stack =====<br><br> 10 cg_linmin<br> 9 cp_cg_main<br> 8 geoopt_cg<br> 7 cp_rot_opt<br> 6 cp_eval_at_ts<br> 5 cp_eval_at<br> 4 cp_cg_main<br> 3 geoopt_cg<br> 2 cp_geo_opt<br> 1 CP2K<br><br><br><br><br>&MOTION<br> &GEO_OPT<br> TYPE TRANSITION_STATE<br> &TRANSITION_STATE<br> METHOD DIMER<br> &DIMER<br> &ROT_OPT<br> OPTIMIZER CG<br> &END ROT_OPT<br> &END DIMER<br> &END TRANSITION_STATE<br> OPTIMIZER CG<br> MAX_FORCE 8.0E-4<br> MAX_ITER 500<br> &END GEO_OPT<br> &PRINT<br> &TRAJECTORY<br> &EACH<br> GEO_OPT 1<br> &END EACH<br> &END TRAJECTORY<br> &END<br>&END MOTION<span class="HOEnZb"><font color="#888888"><br><br></font></span></div><span class="HOEnZb"><font color="#888888">
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