<div dir="ltr"><div>Thanks Thomas, I was a little confused between restart and resetting, now its clear for me :).</div><div><br></div><div>Regards!</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">El dom., 7 jun. 2020 a las 6:34, Thomas Kühne (<<a href="mailto:tku...@gmail.com">tku...@gmail.com</a>>) escribió:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Dear Lucas <div><br></div><div>simply set RESTART_THERMOSTAT TRUE (or remove the line since this is the default) </div><div>to restart the state of the thermostat. The behavior you observe is an artifact due to restarting </div><div>positions and velocities but resetting the thermostat … </div><div><br></div><div>Cheers, </div><div>Thomas</div><div><div><br><blockquote type="cite"><div>Am 07.06.2020 um 04:09 schrieb Lucas Lodeiro <<a href="mailto:eluni...@gmail.com" target="_blank">eluni...@gmail.com</a>>:</div><br><div><div dir="ltr"><div>Hi all,</div><div><br></div><div>I am running NVT water box AIMD in CP2K 7.0.</div><div>The run stopped this morning due to node problem, but I can restart it using the restart file.</div><div>But I see some differences that I can not understand.</div><div><br></div><div>I use the same input data to do the restart, but I added:</div><div><br></div><div>&EXT_RESTART<br>  EXTERNAL_FILE              WATER-1.restart<br>  RESTART_THERMOSTAT         .FALSE.<br>&END EXT_RESTART</div><div><br></div><div>To restart the calculation and to not restart the thermostat. I guess this is the correct way to restart a MD without changing the thermostat behaviour.</div><div>But in the first step I see some weird data in *.ener file.</div><div>I see in the first new step, the Cons Qty[a.u.] change a little, respect the last step after MD stopped.</div><div>Also for the n-last steps after MD stopped, the temperature oscillates just +-10°C around the objective temperature and the average temperature was the correct objective temperature. In the first n-steps of the restart MD, the temperature starts oscillating more than 10 °C (in cases 30°C), but the average temperature was correct respect the last average temperature and objective temperature.</div><div>This is a part of the data (step 28945 is the first step of restart MD):</div><div><br></div><div>     28925        14462.500000         0.524397237       292.822905020     -2167.386128946     -2166.788489113         9.942549903<br>     28926        14463.000000         0.523902002       292.546366555     -2167.385787588     -2166.788513509        18.580139473<br>     28927        14463.500000         0.521503538       291.207066513     -2167.383420424     -2166.788416738        15.250579394<br>     28928        14464.000000         0.518609792       289.591201566     -2167.380528831     -2166.788292618        17.792272486<br>     28929        14464.500000         0.517109605       288.753498602     -2167.379085941     -2166.788225441        10.424001478<br>     28930        14465.000000         0.518164941       289.342797441     -2167.380271236     -2166.788232301         9.924992632<br>     28931        14465.500000         0.521824007       291.386016117     -2167.384120605     -2166.788300216        15.055006087<br>     28932        14466.000000         0.527128166       294.347853254     -2167.389667610     -2166.788420716        10.627952956<br>     28933        14466.500000         0.532342877       297.259742512     -2167.395139856     -2166.788555528        14.917385891<br>     28934        14467.000000         0.535600841       299.078986930     -2167.398592480     -2166.788627084        10.879262459<br>     28935        14467.500000         0.535936944       299.266666470     -2167.399018273     -2166.788593698        10.006427173<br>     28936        14468.000000         0.533834852       298.092860267     -2167.396936550     -2166.788491610         9.977815259<br>     28937        14468.500000         0.530754526       296.372809252     -2167.393877604     -2166.788391632        10.085333489<br>     28938        14469.000000         0.528128677       294.906537823     -2167.391326816     -2166.788346629        10.028149899<br>     28939        14469.500000         0.526585940       294.045074707     -2167.389919732     -2166.788363449         9.960049219<br>     28940        14470.000000         0.525859267       293.639301105     -2167.389345953     -2166.788398597        14.496977419<br>     28941        14470.500000         0.525379287       293.371280876     -2167.388985539     -2166.788401415        14.967396073<br>     28942        14471.000000         0.524959273       293.136745417     -2167.388649341     -2166.788369463        10.315914560<br>     28943        14471.500000         0.524874770       293.089558993     -2167.388653910     -2166.788343715        16.983571853<br>     28944        14472.000000         0.525392050       293.378407716     -2167.389290137     -2166.788348686        12.119731613<br>     28945        14472.500000         0.526406871       293.945083066     -2167.390481370     -2166.863446252        47.022801183<br>     28946        14473.000000         0.527734481       294.686419018     -2167.391978869     -2166.863459996        11.051850852<br>     28947        14473.500000         0.529255279       295.535631285     -2167.393652283     -2166.863456336        10.006576888<br>     28948        14474.000000         0.531086126       296.557974111     -2167.395616229     -2166.863432883         9.709443437<br>     28949        14474.500000         0.533577404       297.949101425     -2167.398244277     -2166.863412585         9.787318693<br>     28950        14475.000000         0.537016875       299.869698620     -2167.401858321     -2166.863429212         9.785394795<br>     28951        14475.500000         0.541258217       302.238060033     -2167.406305123     -2166.863475419         9.731476160<br>     28952        14476.000000         0.545774333       304.759854865     -2167.411027429     -2166.863520675         9.752394203<br>     28953        14476.500000         0.549990896       307.114379332     -2167.415448002     -2166.863561837         9.763660893<br>     28954        14477.000000         0.553359699       308.995515632     -2167.419028509     -2166.863608727         9.769082915<br>     28955        14477.500000         0.555299389       310.078636660     -2167.421167132     -2166.863641041         9.809159193<br>     28956        14478.000000         0.555434584       310.154129550     -2167.421461446     -2166.863632113         9.759279175<br>     28957        14478.500000         0.553874622       309.283048227     -2167.420037090     -2166.863598770         9.749239432<br>     28958        14479.000000         0.551014039       307.685701343     -2167.417323889     -2166.863576839         9.767714364<br>     28959        14479.500000         0.547123637       305.513304502     -2167.413592074     -2166.863566261         9.815094918<br>     28960        14480.000000         0.542330631       302.836894640     -2167.408945453     -2166.863544138         9.748038203<br>     28961        14480.500000         0.536899528       299.804172240     -2167.403638144     -2166.863500571        10.112055471<br>     28962        14481.000000         0.531402812       296.734811186     -2167.398244733     -2166.863438049         9.841474611<br>     28963        14481.500000         0.526676227       294.095490925     -2167.393620245     -2166.863376014         9.819765911<br>     28964        14482.000000         0.523490986       292.316855534     -2167.390580350     -2166.863358790         9.816407133<br>     28965        14482.500000         0.521971605       291.468434880     -2167.389273875     -2166.863410344         9.819614979<br>     28966        14483.000000         0.521357575       291.125560959     -2167.388891848     -2166.863481893         9.822640346</div><div><br></div><div>Why is happening this step shift in the conserved quantity, and the change in the temperature MD behaviour? Is this normal for a restart MD?</div><div><br></div><div>Regards<br></div><div><br></div><div><br></div></div><div><br></div>

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