<div dir="ltr">Hi all,<br><br>I am running a NVT MD simulation and use the coordinates and velocities of the atoms from CP2K. I am using v2.7 CP2K on ARCHER on MgSiO3 (240 atoms). <br><br>All of the atoms are in and
around the simulation box in the initial model, but the atoms are moving
out of the box along the simulation time, and go far away from the box
gradually, You can see that the 'z' coordinate of the first atom
changes from 3.04 (0 ps) to -105 (75 ps). I know it is a periodic box,
it doesn't mater where the atoms are, but it is a very strange looking . Is there any keyword to
restrict atoms just moving around the simulation box (except to freeze a atom)? Thanks.<br><br>Here is my input file<br><br>&GLOBAL <br> PROJECT pv-lad <br> RUN_TYPE md <br> PRINT_LEVEL low <br> &END GLOBAL <br><br>&MOTION <br> &PRINT <br> &STRESS <br> &END STRESS <br> &velocities <br> &end velocities <br> &END PRINT <br><br> &MD<br> ENSEMBLE NVT<br> STEPS 10001 <br> TIMESTEP 1 <br> TEMPERATURE 4000.0<br> &THERMOSTAT <br> &NOSE <br> LENGTH 3 <br> YOSHIDA 3 <br> TIMECON 10.0 <br> MTS 2 <br> &END NOSE <br> &END <br> &END MD <br><br>&END MOTION<br><br>&FORCE_EVAL <br> METHOD Quickstep <br> STRESS_TENSOR analytical <br> &DFT <br> BASIS_SET_FILE_NAME BASIS_MOLOPT <br> POTENTIAL_FILE_NAME POTENTIAL <br> &MGRID <br> CUTOFF 500 <br> REL_CUTOFF 40 <br> &END MGRID <br><br> &PRINT<br> &DFT_CONTROL_PARAMETERS<br> &END DFT_CONTROL_PARAMETERS<br> &END PRINT <br><br> &QS<br> ls_scf<br> EPS_DEFAULT 1.0E-10<br> EXTRAPOLATION use_prev_p<br> MAP_CONSISTENT <br> &END QS <br><br> &LS_SCF<br> PURIFICATION_METHOD TRS4<br> MU 0.15 <br> MAX_SCF 200 <br> S_PRECONDITIONER ATOMIC <br> &END <br><br> &SCF<br> &OT ON<br> MIXED_PRECISION .TRUE. <br> &END OT <br> EPS_SCF 1.0E-5 <br> MAX_SCF 200 <br> SCF_GUESS atomic <br> &OUTER_SCF <br> EPS_SCF 1.0E-7 <br> MAX_SCF 500 <br> &END <br> &END SCF <br><br> &XC<br> &XC_FUNCTIONAL LDA<br> &END XC_FUNCTIONAL<br> &END XC <br> &END DFT <br> &PRINT <br> &STRESS_TENSOR <br> NDIGITS 4 <br> &END STRESS_TENSOR <br> &END PRINT <br> &SUBSYS <br> &CELL <br> ABC 26.0369999999999990 9.1050000000000004 6.2900000000000000<br>MULTIPLE_UNIT_CELL 1 1 1 <br> SYMMETRY ORTHORHOMBIC <br> &END CELL <br> &COORD <br>Mg -8.5841870397562470E-02 2.4446737869627219E-01 4.8382391457694479E-01 <br>Mg 2.6031406086949271E-01 2.6092719343831572E-01 4.4217146672191654E-01 <br>Mg 5.8328369689563009E-01 2.7457651320156096E-01 5.4373784721259688E-01 <br>Mg -1.6551265244923527E-01 5.0062949446903793E-01 4.1425269983661733E-01 <br>Mg 1.7504514944695440E-01 4.8334791029082946E-01 5.1221241800498718E-01 <br>Mg 5.0100847251823832E-01 5.1467931925712862E-01 5.3871665439449057E-01 <br>Mg 4.9696258783467661E-03 2.8564556687435058E-02 -5.5635394771647945E-02 <br>Mg 3.3341069514857558E-01 4.3041475940459976E-02 7.2042674649568979E-03 <br>Mg 6.6442011772974674E-01 7.8685228117939057E-02 -1.2914007205212010E-02 <br>Mg -8.8965855464970933E-02 3.0757986909734858E-01 -1.7341304196210550E-02 <br>Mg 2.6429480997107940E-01 2.9871264106622647E-01 -1.1588724444114285E-04 <br>Mg 5.9663827162760652E-01 3.2436772679716008E-01 1.4053134928836836E-03 <br>Mg 8.3963502182136829E-02 2.2560437235288969E-01 4.5755778075376385E-01 <br>Mg 4.1680405569713747E-01 2.5279272185825119E-01 5.1166415618287830E-01 <br>Mg 7.5782180365131513E-01 2.5740119746015044E-01 5.0321085850400704E-01 <br>Mg 1.0012635472290692E-02 4.9177815625580329E-01 5.0542111791271982E-01 <br>Mg 3.4826208963496036E-01 4.9244069485338821E-01 5.3543844342620606E-01 <br>Mg 6.7617022771933921E-01 4.9093655765936467E-01 4.3813890750518381E-01 <br>Mg -1.7218244414747880E-01 5.5919241943238295E-02 -3.0553492021523139E-02 <br>Mg 1.7385353536448078E-01 8.1253409311228611E-03 5.9398609267433799E-03 <br>Mg 5.0334906666302892E-01 4.1457643446633649E-02 3.8409145603852696E-02 <br>Mg 9.0018318897402805E-02 3.0490848749171917E-01 2.4777148653723682E-02 <br>Mg 4.2759112826818119E-01 3.3550241386878465E-01 2.3574288059742265E-02 <br>Mg 7.6029010663652807E-01 3.1034820319365952E-01 -7.7023048895912327E-02 <br>Mg -8.1313873877322862E-02 7.7313009491039986E-01 4.3461633154845569E-01 <br>Mg 2.4331569943035028E-01 7.3221060103160474E-01 5.1839726066449121E-01 <br>Mg 5.9219372315569052E-01 7.2690449382934397E-01 4.9708940180974087E-01 <br>Mg -1.5023352778399374E-01 9.9804254663294489E-01 4.6895512817445412E-01 <br>Mg 1.7747341524146643E-01 9.8395743227503896E-01 5.3463993730437831E-01 <br>Mg 5.0519021038414380E-01 1.0007092110747235E+00 5.0046645715607063E-01 <br>Mg -2.2470938063514673E-03 5.5717466274186511E-01 -2.4260363411724203E-02 <br>Mg 3.3247183757664761E-01 5.7859926774950377E-01 -1.8963323628777000E-02 <br>Mg 6.6710460915604308E-01 5.4711297978742368E-01 -1.8744795300869112E-02 <br>Mg -6.9702901123363123E-02 8.1471277075959991E-01 -1.3694208100214843E-02 <br>Mg 2.5266844568200930E-01 8.1442337341414928E-01 -3.0440293716887004E-03 <br>Mg 5.9155869762889146E-01 8.0276564100592418E-01 2.8292242575817007E-03 <br>Mg 8.5198439961117159E-02 7.2502463201591161E-01 4.7741023096073743E-01 <br>Mg 4.2797150764181374E-01 7.3183873081787887E-01 5.7055317612785195E-01 <br>Mg 7.4627180458684039E-01 7.6710443821753282E-01 4.9709870301145453E-01 <br>Mg -5.8810617600903881E-03 9.9267467333396797E-01 4.5006985665657040E-01 <br>Mg 3.4547972080063727E-01 9.7433640024046786E-01 5.2063541360370935E-01 <br>Mg 6.7069899018667600E-01 9.8999935891476076E-01 4.6416642311786444E-01 <br>Mg 1.6619195913826168E-01 5.6494493718312333E-01 1.8350295635919005E-03 <br>Mg 5.1023411830493037E-01 5.5831351058750600E-01 -3.8267644482570563E-02 <br>Mg 8.3634339585256257E-01 5.5467337454304844E-01 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-2.6994044392031807E-01 <br>Si 1.7939776418951683E-01 2.8464306969936548E-01 -2.5399808353232317E-01 <br>Si 5.0542957339013084E-01 2.7111377918624624E-01 -2.9980422429052739E-01 <br>Si 2.0323415780992295E-03 2.7779541789661716E-01 2.4671233314957591E-01 <br>Si 3.4103948579684734E-01 2.6421176739814001E-01 2.5298110434427307E-01 <br>Si 6.8278819590801654E-01 2.7528119667098000E-01 2.1297589505608711E-01 <br>Si 8.5455304988850622E-02 1.0201354135682468E+00 2.4360345980615253E-01 <br>Si 4.2441886884211777E-01 1.0582001614595029E+00 2.4545414981522820E-01 <br>Si 7.6284723598227533E-01 1.0246937028042182E+00 2.3573758092393254E-01 <br>Si 9.0434407921566901E-02 1.2080918715200891E-02 -2.5561808444944212E-01 <br>Si 4.2539570597791759E-01 1.6024835047054074E-02 -2.4129761989223139E-01 <br>Si 7.5361681011693626E-01 1.7345499591522894E-02 -2.4183432340715560E-01 <br>Si 4.0214016112855768E-03 2.6733818264111503E-01 -2.5736571860243879E-01 <br>Si 3.4325827442590690E-01 2.3718624650465039E-01 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2.6352524128790239E-01 <br>O 3.9039497802214229E-01 3.6468797985268969E-01 2.7552578428474889E-01 <br>O 7.2962637939965747E-01 3.7566775959038962E-01 2.8695425875641256E-01 <br>O 3.4505595259710101E-02 9.8802952481073986E-02 2.8419209881758450E-01 <br>O 3.6765845342493203E-01 1.1901889264525388E-01 3.1715533039605454E-01 <br>O 7.0395077892562208E-01 1.1836548203598146E-01 2.9752773884738870E-01 <br>O 2.8063322622861930E-02 9.5029511692377250E-02 6.5015794232891810E-01 <br>O 3.6476295125605807E-01 8.8623017433614532E-02 7.0374469219848801E-01 <br>O 7.0150592854485505E-01 1.1473472599226162E-01 6.8136866438645516E-01 <br>O 5.7857866245034403E-02 3.4636958153789460E-01 6.7217062870171662E-01 <br>O 3.8518976458030879E-01 3.5273378146441192E-01 7.0355634063446948E-01 <br>O 7.2680363262911929E-01 3.8876392778000052E-01 6.7172524333779071E-01 <br>O 1.3273358629991072E-01 1.6310026694970095E-01 1.6129979301186462E-01 <br>O 4.5452969669820803E-01 2.0284595205831815E-01 1.9182842918753723E-01 <br>O 7.8591937834212366E-01 1.7978256568609235E-01 1.5812532774263985E-01 <br>O 1.4033667897801375E-01 4.1269811217451718E-01 1.6623174864260304E-01 <br>O 4.7703720271037081E-01 4.4320864932387821E-01 1.6291797724779025E-01 <br>O 8.0607253807035473E-01 4.2658611727491463E-01 1.7358981441861657E-01 <br>O -3.0361172114472069E-02 9.1560731448497767E-01 -2.4644259974803873E-01 <br>O 3.0693087908151084E-01 9.1075763435471757E-01 -2.0692296380238806E-01 <br>O 6.3830974802852469E-01 9.2084972199968129E-01 -1.6933650874815112E-01 <br>O -4.9914913727723650E-02 6.7187707262471830E-01 -2.5558759876898168E-01 <br>O 2.8502502015620074E-01 6.8379280742634807E-01 -2.3416879455180786E-01 <br>O 6.1912671101739747E-01 6.9293448326299911E-01 -2.1105026068616869E-01 <br>O -1.0026969199538097E-01 8.9685040169349806E-01 2.5441771635546506E-01 <br>O 2.2065626554037793E-01 8.7066278979515155E-01 3.2799645364169716E-01 <br>O 5.6066187646605725E-01 8.7857542231317554E-01 3.3318049597205784E-01 <br>O -1.2593518087356351E-01 6.3623473234896921E-01 2.8721679207213630E-01 <br>O 1.9081139907637110E-01 6.1242409933442088E-01 2.8798907717818084E-01 <br>O 5.4574916545356267E-01 6.1143623822325910E-01 3.3157783174048217E-01 <br>O -1.3235302608873989E-01 6.0589610280050832E-01 6.4594063179307859E-01 <br>O 2.0184794793124600E-01 6.3002767107121060E-01 6.6564174213650495E-01 <br>O 5.4134357038271252E-01 6.2650800686889052E-01 6.9364237205592438E-01 <br>O -1.1320028574200068E-01 8.8135564543997091E-01 6.4321680131118086E-01 <br>O 2.3267359259702497E-01 8.6958215205690736E-01 6.8908445002615915E-01 <br>O 5.6465432448155672E-01 8.7184700041293761E-01 7.0531628724810269E-01 <br>O -4.2621863071148985E-02 6.6742492036733536E-01 1.2877140913861329E-01 <br>O 2.8312696859637526E-01 6.8126505647660385E-01 2.0337281112138650E-01 <br>O 6.2645648213341754E-01 6.8382565227601799E-01 1.9281505016717676E-01<br>O -2.8201529353336616E-02 9.3955251497686487E-01 1.5930196031901150E-01<br>O 3.1120446524539652E-01 9.3418556419764875E-01 2.2478527811333959E-01<br>O 6.3568880389072280E-01 9.5127884528921847E-01 1.7812471706357072E-01<br>O 1.4000287326271965E-01 9.0078179863766805E-01 -1.8057725352899179E-01<br>O 4.7877482715586267E-01 9.3468349595848255E-01 -1.8620470687685570E-01<br>O 8.0521723814498569E-01 9.2413756853942941E-01 -1.8865685801289381E-01<br>O 1.1991375229196477E-01 6.5435990256367171E-01 -1.8010093869470617E-01<br>O 4.6102352049016782E-01 6.7871313859137983E-01 -1.9419788233522678E-01<br>O 7.8454897234366106E-01 6.5781467249533421E-01 -2.5523916192427448E-01<br>O 5.1080723884232335E-02 8.6232040223900186E-01 2.9823849185823026E-01<br>O 3.9097593415316895E-01 8.6672780665133053E-01 3.5770099595791999E-01<br>O 7.2484142707316546E-01 8.6048126179126916E-01 2.5711140554384249E-01<br>O 4.1043349988371280E-02 6.0444622383396329E-01 2.9072778322645382E-01<br>O 3.6330695908740912E-01 5.9621360916061772E-01 2.8034067174190863E-01<br>O 7.0573859989380738E-01 6.1996589016319503E-01 2.4140898597504820E-01<br>O 3.8042391787087397E-02 6.0478757057803678E-01 7.0807746344902189E-01<br>O 3.7904786311879596E-01 6.4507384765468945E-01 6.9031586750440332E-01<br>O 6.9526818344367791E-01 6.2135571770171905E-01 6.6837106531584500E-01<br>O 5.9242655384482291E-02 8.4946237807199976E-01 6.8604253750850153E-01<br>O 3.9697151240540690E-01 8.6529496711891274E-01 7.3268176010280039E-01<br>O 7.1764945617944320E-01 8.9703279849916029E-01 6.7120232595711293E-01<br>O 1.1306310010342996E-01 6.7186534427512035E-01 1.8032770604537174E-01<br>O 4.5725920735762615E-01 6.8144900678307918E-01 2.1929015248337766E-01<br>O 7.9035777786540340E-01 6.5272523884954170E-01 1.6173703166177425E-01<br>O 1.2691336026982300E-01 8.8193897928857723E-01 1.5298022868968228E-01<br>O 4.6974258018389786E-01 9.4087896259039372E-01 2.4423433342220854E-01<br>O 8.0798182559559051E-01 9.1559411453756445E-01 1.6014252990802127E-01<br> SCALED T<br> &END COORD<br> &TOPOLOGY<br> MULTIPLE_UNIT_CELL 1 1 1<br> &END TOPOLOGY<br><br> &KIND Mg<br> BASIS_SET DZVP-MOLOPT-SR-GTH<br> POTENTIAL GTH-PADE-q10<br> &END KIND<br> &KIND Si<br> BASIS_SET DZVP-MOLOPT-SR-GTH<br> POTENTIAL GTH-PADE-q4<br> &END KIND<br> &KIND O<br> BASIS_SET DZVP-MOLOPT-SR-GTH<br> POTENTIAL GTH-PADE-q6<br> &END KIND<br><br> &PRINT<br> &CELL<br> &END CELL<br> &KINDS<br> BASIS_SET<br> POTENTIAL<br> &END KINDS<br> &END PRINT<br> &END SUBSYS<br>&END FORCE_EVAL<br><br><br><br>initial coordinates (head of pos file) of the initial model <br> 240<br> i = 0, time = 0.000, E = -5533.8818888693<br> Mg -2.2350647795 2.2258754830 3.0432524227<br> Mg 6.7777972029 2.3757420963 2.7812585257<br> Mg 15.1869576161 2.5000191527 3.4201110590<br> Mg -4.3094529318 4.5582315471 2.6056494820<br> Mg 4.5576505562 4.4008827232 3.2218161093<br> Mg 13.0447575990 4.6861552018 3.3885277561<br> Mg 0.1293941490 0.2600802886 -0.3499466331<br> Mg 8.6810142696 0.3918926384 0.0453148424<br> Mg 17.2995066053 0.7164290020 -0.0812291053<br> Mg -2.3164039787 2.8005147081 -0.1090768034<br> Mg 6.8814439672 2.7197785969 -0.0007289308<br> Mg 15.5346706784 2.9533681525 0.0088394219<br> Mg 2.1861577063 2.0541278103 2.8780384409<br> Mg 10.8523271982 2.3016777325 3.2183675424<br> Mg 19.7314063017 2.3436379029 3.1651963000<br> Mg 0.2606989898 4.4776401127 3.1790988317<br> Mg 9.0677000278 4.4836725266 3.3679078092<br> Mg 17.6054442191 4.4699773575 2.7558937282<br> Mg -4.4831142983 0.5091446979 -0.1921814648<br><br><br>coordinates after 20ps<br> 240<br> i = 20001, time = 20001.000, E = -5534.1383369278<br> Mg -8.5212228136 -17.2329853845 -6.1595394457<br> Mg 0.1733030533 -17.2261286967 -6.2821580924<br> Mg 8.9959146485 -17.4095596792 -6.3696605785<br> Mg -10.5729449901 -14.6903815393 -5.8709632264<br> Mg -1.6408954749 -14.7889119922 -6.1154406061<br> Mg 7.0096825252 -15.0695676381 -6.2952011201<br> Mg -6.5462144938 -18.6352030196 -9.2394688534<br> Mg 2.7079580192 -19.2117381190 -9.0573553409<br> Mg 11.0703485543 -19.0039397574 -9.3380730778<br> Mg -8.2970565765 -16.4689058371 -9.2340818459<br> Mg 0.4952232634 -16.9586463739 -9.4256184855<br> Mg 9.2344598716 -16.8880682175 -9.2526558096<br> Mg -4.2037103591 -17.0867382294 -6.0038126867<br> Mg 4.9376923386 -16.7217767801 -6.2864741981<br> Mg 13.1878255020 -17.2638944927 -6.2403029009<br> Mg -6.0381312891 -14.7081735538 -6.3737176302<br> Mg 2.3822045804 -14.6944383387 -6.1485179972<br> Mg 11.4396035728 -14.8853543043 -6.3185200850<br> Mg -10.4231395906 -18.8180442052 -9.3533964840<br> Mg -2.0886701394 -18.8927968592 -9.5809690521<br> Mg 6.8530648011 -18.8965492739 -9.4719921566<br> Mg -4.0205717577 -16.5417084935 -9.1752344616<br> Mg 4.7672752630 -16.7706042565 -9.2988751763<br> Mg 13.2134011273 -16.7797712709 -9.4822572983<br> Mg -8.3513203967 -12.4424046604 -6.3338283428<br> Mg 0.1740399213 -12.6675128344 -6.0703348080<br> Mg 9.1188169422 -12.9013949048 -6.1136900038<br> Mg -10.3195768248 -10.1868043404 -6.1259349808<br><br>coordinates after 70ps<br>240<br> i = 75001, time = 75001.000, E = -5534.1134699400<br> Mg -29.9516376336 -15.1194881940 -105.6864548489<br> Mg -21.4511789621 -15.2926359800 -106.1107492361<br> Mg -12.3363043787 -15.5007476138 -106.2108320349<br> Mg -32.2417730367 -12.9827426855 -105.5340500595<br> Mg -23.4138501483 -12.4400416991 -106.1547836826<br> Mg -14.7562896521 -13.1941836426 -106.0632110738<br> Mg -27.8160910483 -16.6746036456 -109.2618664112<br> Mg -19.3826628235 -17.1830156386 -109.1795648209<br> Mg -10.5844317056 -16.9004665903 -109.1913904136<br> Mg -29.8214023359 -14.3215323946 -109.1082157156<br> Mg -21.3262188298 -14.6000591188 -109.3459316789<br> Mg -12.5883003718 -14.7171299129 -108.9683410866<br> Mg -25.8265527209 -14.9827801002 -106.1365938986<br> Mg -17.1148136255 -15.5361901256 -105.8236732361<br> Mg -8.4142552222 -15.0898366321 -106.0625881355<br> Mg -27.5560141815 -12.8040524795 -105.9702759551<br> Mg -19.0600590386 -13.1822114701 -105.8094803560<br> Mg -10.3985974837 -12.9584366337 -106.0224361393<br> Mg -32.3640441320 -16.7883161725 -108.8004958341<br> Mg -23.7100783179 -16.5857359895 -109.1708486711<br> Mg -14.7782068474 -17.3885317222 -109.0902597143<br> Mg -25.3286013327 -14.4648690199 -109.0576491752<br> Mg -16.8045905059 -15.0924280776 -109.2360875952<br> Mg -8.0511065290 -14.4302778422 -108.8879246410<br> Mg -30.0144113017 -10.4071856423 -105.7877594307<br> Mg -21.3870390974 -10.6425949879 -106.0301613661<br> Mg -12.5339204264 -10.8533353879 -105.9856478294<br><br></div>