----------------------------------------------------------------------<br /> COLVARS| COLVAR INPUT INDEX:        1<br /> COLVARS| ANGLE          >>> ATOMS:                            2       1       3<br />          ----------------------------------------------------------------------<br /><br /> *******************************************************************************<br /> *   ___                                                                       *<br /> *  /   \                                                                      *<br /> * [ABORT]                                                                     *<br /> *  \___/                             CPASSERT failed                          *<br /> *    |                                                                        *<br /> *  O/|                                                                        *<br /> * /| |                                                                        *<br /> * / \                                                    topology_input.F:491 *<br /> *******************************************************************************<br /><br /><br /> ===== Routine Calling Stack ===== <br /><br />            2 topology_control<br /><div>            1 CP2K</div><div><br /></div><div>Dear CP2K Developers<br />I want to optimize the structure of the molecule with a fixed angle, but the above error occurs, how should I deal with it.<br />Below is my input file, I have not encountered this error when calculating other molecules in the past.</div><div><br /></div><div>&GLOBAL<br />  PROJECT TEA-angle<br />  PRINT_LEVEL LOW<br />  RUN_TYPE GEO_OPT<br />&END GLOBAL<br /><br />&FORCE_EVAL<br />  METHOD Quickstep<br />  &SUBSYS<br />    &TOPOLOGY<br />      &CENTER_COORDINATES <br />      &END CENTER_COORDINATES<br />    &END TOPOLOGY<br />    &CELL<br />      A    12.69795635     0.00000000     0.00000000<br />      B     0.00000000    12.69795635     0.00000000<br />      C     0.00000000     0.00000000    12.69795635<br />      PERIODIC NONE #Direction(s) of applied PBC (geometry aspect)<br />    &END CELL<br />    &COORD<br />      Al          6.25844178    6.24123337    6.25390079<br />      C           4.71535929    6.61449712    7.41318518<br />      C           4.31919852    5.54489495    8.45350184<br />      C           7.44733104    4.71955677    6.62556539<br />      C           8.51982521    4.38440723    5.56581823<br />      C           6.65611544    7.44915814    4.75480001<br />      C           5.58792104    8.50291950    4.38887394<br />      H           4.92828778    7.56155266    7.92277247<br />      H           3.85872637    6.85123825    6.77474490<br />      H           5.14403471    5.31196156    9.12896976<br />      H           4.03199595    4.60604273    7.97825945<br />      H           3.47691363    5.85937040    9.07350277<br />      H           7.93291930    4.92215457    7.58704208<br />      H           6.83117297    3.83805383    6.82663728<br />      H           9.15766026    3.55096328    5.86824032<br />      H           9.17486999    5.23427128    5.36891923<br />      H           8.07064596    4.11064966    4.60994187<br />      H           6.89759443    6.84111031    3.87822574<br />      H           7.60125404    7.95201132    4.99087114<br />      H           4.65468622    8.03569671    4.07159530<br />      H           5.90946558    9.15671042    3.57527899<br />      H           5.34240789    9.14354444    5.23683715<br />    &END COORD<br />    &COLVAR                            <br />      &ANGLE                        <br />       ATOMS 2 1 3                   <br />      &END ANGLE<br />    &END COLVAR</div><br />

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