[CP2K-user] Does this simulation of ethanol look reasonable?

Tue Boesen aly... at gmail.com
Mon Jun 7 18:17:23 UTC 2021


Could anyone tell me whether this simulation of ethanol looks reasonable? 
Looking at the data I think it looks pretty good, but I have basically no 
experience with cp2k, and before I commit tons of compute time into a long 
simulation I want to be sure it looks reasonable.

I'm a bit concerned about whether a 10 angstrom box is big enough, and also 
whether the connection to the heatbath is good enough (the fluctuation in 
temperature looks rather big to me, but maybe that is normal?)
#     Step Nr.          Time[fs]        Kin.[a.u.]          
Temp[K]            Pot.[a.u.]        Cons Qty[a.u.]        UsedTime[s]
         0            0.000000         0.021376004       
500.000000000       -30.940317194       -30.918941191         0.000000000
         1            0.500000         0.023224233       
543.231401404       -30.940119066       -30.918931091        70.380063602
         2            1.000000         0.020716932       
484.583853965       -30.939192451       -30.918898445        14.650779860
         3            1.500000         0.026318366       
615.605389651       -30.938262651       -30.918868348        14.679688383
         4            2.000000         0.027799110       
650.241045161       -30.937448915       -30.918855571        15.198169548
         5            2.500000         0.027660763       
647.005019284       -30.936593313       -30.918849111        14.841158615
         6            3.000000         0.022735293       
531.794754543       -30.935269226       -30.918840364        14.707405200
         7            3.500000         0.021549990       
504.069663507       -30.933753820       -30.918844455        17.819528143
         8            4.000000         0.023745544       
555.425245169       -30.933337563       -30.918863664        17.658549358
         9            4.500000         0.027089257       
633.637089807       -30.932330631       -30.918863587        18.580919243
        10            5.000000         0.031060550       
726.528471864       -30.930217645       -30.918820266        16.731350143
        11            5.500000         0.019119431       
447.217162434       -30.927550718       -30.918772429        18.460341773
        12            6.000000         0.018676019       
436.845432801       -30.924256455       -30.918713552        18.716260576
        13            6.500000         0.015292120       
357.693614720       -30.922296417       -30.918684711        19.135588854
        14            7.000000         0.010296307       
240.837967730       -30.921884299       -30.918678495        17.015131364
        15            7.500000         0.011377256       
266.122159048       -30.923115264       -30.918695367        17.126720321
        16            8.000000         0.013810285       
323.032435092       -30.925573507       -30.918739249        15.069220611
        17            8.500000         0.017993869       
420.889453203       -30.928950586       -30.918800359        16.749625202
        18            9.000000         0.023493290       
549.524848163       -30.931894421       -30.918863917        16.821272528
        19            9.500000         0.027637351       
646.457402871       -30.933740687       -30.918914926        17.188129979
        20           10.000000         0.028564011       
668.132627952       -30.932546594       -30.918915654        15.354165585
        21           10.500000         0.025901171       
605.846911401       -30.928863623       -30.918845819        15.188832567
        22           11.000000         0.021792507       
509.742308093       -30.924277364       -30.918729892        15.298574965
        23           11.500000         0.021740825       
508.533444875       -30.918497617       -30.918570726        15.158717403
        24           12.000000         0.020364857       
476.348563766       -30.915412782       -30.918494449        17.041799575
        25           12.500000         0.014304198       
334.585419519       -30.914997338       -30.918513326        16.731572510
        26           13.000000         0.015488610       
362.289662620       -30.917401069       -30.918601374        17.047595033
        27           13.500000         0.029912429       
699.673081305       -30.922531836       -30.918750480        18.810974613
        28           14.000000         0.030645453       
716.819054732       -30.927244620       -30.918848999        20.971334974
        29           14.500000         0.026322114       
615.693058558       -30.929107013       -30.918861725        17.865035105
        30           15.000000         0.029767970       
696.294089221       -30.929894599       -30.918845634        16.090579050
        31           15.500000         0.031914475       
746.502386829       -30.928936625       -30.918807023        18.039594289
        32           16.000000         0.034386378       
804.321948556       -30.927205313       -30.918761162        18.475068174
        33           16.500000         0.029580887       
691.918087683       -30.924148922       -30.918697027        22.790878445
        34           17.000000         0.026236345       
613.686859404       -30.920952248       -30.918643056        31.747649701
        35           17.500000         0.023444683       
548.387897652       -30.919177000       -30.918623766        31.233359967
        36           18.000000         0.020361725       
476.275306478       -30.917832952       -30.918623325        27.257922515
        37           18.500000         0.025192476       
589.270023978       -30.919488465       -30.918663960        13.011880877
        38           19.000000         0.024394591       
570.606917360       -30.920918507       -30.918696497        14.501670159
        39           19.500000         0.025749032       
602.288254018       -30.922315810       -30.918715725        15.472510641
        40           20.000000         0.023217615       
543.076597487       -30.924107518       -30.918720558        16.604667703
        41           20.500000         0.026406585       
617.668887597       -30.924954783       -30.918703724        15.846752299
        42           21.000000         0.021198485       
495.847719139       -30.925578362       -30.918717204        16.265199743
        43           21.500000         0.023181559       
542.233225056       -30.926622212       -30.918749797        16.661888225
        44           22.000000         0.028405249       
664.419082909       -30.927727963       -30.918786325        16.089674913
        45           22.500000         0.025794111       
603.342689643       -30.927829051       -30.918789630        16.158307827
        46           23.000000         0.017598190       
411.634250548       -30.927668678       -30.918799253        16.516013595
        47           23.500000         0.018796061       
439.653288341       -30.929161299       -30.918866181        16.486988398
        48           24.000000         0.019956732       
466.802232911       -30.930659444       -30.918919863        16.900500989
        49           24.500000         0.025465192       
595.649032497       -30.931430494       -30.918928094        14.738103371
        50           25.000000         0.021128028       
494.199666633       -30.930759414       -30.918880075        15.576921824





Cheers
Tue
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