<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 class="code cp2k">&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>