<div dir="ltr">Hi Sungen (<span style="font-size: 13px;">If I typed your name correct... ),</span><div><br></div><div>The position file from CP2K geometry optimization calculation is automatically printed step by step. I copied and run your code just now. The result file is attached. </div><div>As you can see in the result position file, this calculation performed 12 steps geometry optimization. For each step, the program printed the Cartesian coordinates with the letter "i" as the step number sign (i = 1 to 12 ). <br><div><br></div><div>Unfortunately, almost every beginner of CP2K, including me, complained that the poor manual. I suggest that you first read some basic tutorials written by other CP2K users. One of the basic tutorials I recommend is from Dr. Sébastien LE ROUX. http://www.ipcms.unistra.fr/?page_id=14965&lang=en . </div><div><br></div><div>And then try the test files in the cp2k/tests/QS/ directory. The most important things is to digest the listed literature in CP2K manual website. http://manual.cp2k.org/cp2k-2_6-branch/references.html <br><br>Good luck,</div><div>Huan Wang</div><div><br></div><div><br><br><br><br>On Friday, January 23, 2015 at 5:04:00 AM UTC+2, sung...@gmail.com wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"><div dir="ltr">Hello everyone,<br><br> I am a newbie about CP2K, and I have a stupid question ... .<br> I am confused about how CP2K controls the output during the calculations. There are many print sections, and they are in different levels. I'm quite <br> confused by the philosophy behind this. Is there any instruction or tutorials on this?<br><br> Specifically, I have two questions ,<br> Firstly I don't understand the meaning of the iteration levels, and the print_key in the documents.<br> Secondly, I ran into problems when I am trying the example of structure optimization of water in tutorials: The output of positions in the file H2O-pos-1.xyz seems not at every time the force was calculated. I want to output the positions of atoms every time the positions are changed, how should I modifiy the input. There are many files localLog_p(#precess number), which are created but none is there. I find a similar question in this mailist long ago. And this is likely a bug then, but my cp2k is the newest version (2.6). So is this right ?<br><br><br> Thank you for any suggestions !<br><br>The input for water optimization, exactly same as in the tutorials:<br><br><pre>&GLOBAL
PROJECT H2O
RUN_TYPE GEO_OPT
PRINT_LEVEL LOW
&END GLOBAL
&FORCE_EVAL
METHOD QS
&SUBSYS
&CELL
ABC 12.4138 12.4138 12.4138
&END CELL
&COORD
O 12.235322 1.376642 10.869880
H 12.415139 2.233125 11.257611
H 11.922476 1.573799 9.986994
&END COORD
&KIND H
BASIS_SET DZVP-GTH-PADE
POTENTIAL GTH-PADE-q1
&END KIND
&KIND O
BASIS_SET DZVP-GTH-PADE
POTENTIAL GTH-PADE-q6
&END KIND
&END SUBSYS
&DFT
BASIS_SET_FILE_NAME ./BASIS_SET
POTENTIAL_FILE_NAME ./POTENTIAL
&QS
EPS_DEFAULT 1.0E-7
&END QS
&MGRID
CUTOFF 200
NGRIDS 4
REL_CUTOFF 30
&END MGRID
&SCF
SCF_GUESS ATOMIC
EPS_SCF 1.0E-05
MAX_SCF 200
&DIAGONALIZATION T
ALGORITHM STANDARD
&END DIAGONALIZATION
&MIXING T
ALPHA 0.5
METHOD PULAY_MIXING
NPULAY 5
&END MIXING
&PRINT
&RESTART OFF
&END RESTART
&END PRINT
&END SCF
&XC
&XC_FUNCTIONAL PADE
&END XC_FUNCTIONAL
&END XC
&END DFT
&END FORCE_EVAL
&MOTION
&GEO_OPT
TYPE MINIMIZATION
MAX_DR 1.0E-03
MAX_FORCE 1.0E-03
RMS_DR 1.0E-03
RMS_FORCE 1.0E-03
MAX_ITER 200
OPTIMIZER CG
&CG
MAX_STEEP_STEPS 0
RESTART_LIMIT 9.0E-01
&END CG
&END GEO_OPT
&CONSTRAINT
&FIXED_ATOMS
COMPONENTS_TO_FIX XYZ
LIST 1
&END FIXED_ATOMS
&END CONSTRAINT
&END MOTION</pre><br> <br></div></blockquote></div></div></div>