Hi 

<span style="color: rgb(32, 33, 36); font-family: Roboto, Arial, sans-serif; letter-spacing: 0.25px; white-space: nowrap;">Jürg,</span><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;"><br /></span></font></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;">I have removed basis set and found that the problem remains. A difficult thing hard to understand : Why a different value (6.8219113397) was taken in the very beginning of the calculations? There must be somthing hard to understand.</span></font></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;"><br /></span></font></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;">The lattice prior to the optimization: </span></font></div><div>lattice vectors<br />  a1 :       6.8219113397       0.0000000000       0.0000000000<br />  a2 :       0.0000000000       6.8219113397       0.0000000000<br />  a3 :       0.0000000000       0.0000000000       6.8219113397<font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;"><br /></span></font></div><div><br /></div><div><br /></div><div><br /></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;">The head of The output file: </span></font></div><div><font color="#202124" face="Roboto, Arial, sans-serif"><span style="letter-spacing: 0.25px; white-space: nowrap;"><br /></span></font></div><div> DBCSR| CPU Multiplication driver                                           XSMM (U)<br /> DBCSR| Multrec recursion limit                                              512 (U)<br /> DBCSR| Multiplication stack size                                           1000 (D)<br /> DBCSR| Maximum elements for images                                    UNLIMITED (U)<br /> DBCSR| Multiplicative factor virtual images                                   1 (U)<br /> DBCSR| Use multiplication densification                                       T (D)<br /> DBCSR| Multiplication size stacks                                             3 (U)<br /> DBCSR| Use memory pool for CPU allocation                                     F (U)<br /> DBCSR| Number of 3D layers                                               SINGLE (U)<br /> DBCSR| Use MPI memory allocation                                              F (U)<br /> DBCSR| Use RMA algorithm                                                      F (U)<br /> DBCSR| Use Communication thread                                               T (U)<br /> DBCSR| Communication thread load                                             42 (D)<br /> DBCSR| MPI: My process id                                                     0<br /> DBCSR| MPI: Number of processes                                               8<br /> DBCSR| OMP: Current number of threads                                        13<br /> DBCSR| OMP: Max number of threads                                            13<br /> DBCSR| Split modifier for TAS multiplication algorithm                  1.0E+00 (U)<br /><br />SIRIUS 7.3.2, git hash: https://api.github.com/repos/electronic-structure/SIRIUS/git/ref/tags/v7.3.2<br /><br />  **** **** ******  **  PROGRAM STARTED AT               2023-06-29 18:25:42.062<br /> ***** ** ***  *** **   PROGRAM STARTED ON                               ubuntua<br /> **    ****   ******    PROGRAM STARTED BY                              jibiaoli<br /> ***** **    ** ** **   PROGRAM PROCESS ID                                333548<br />  **** **  *******  **  PROGRAM STARTED IN              /home/jibiaoli/calc/test<br /><br /> CP2K| version string:                                       CP2K version 2023.1<br /> CP2K| source code revision number:                                  git:b888bd8<br /> CP2K| cp2kflags: omp fftw3 libxc pexsi elpa parallel scalapack cosma xsmm max_c<br /> CP2K|            ontr=4 plumed2 spglib mkl sirius libvori libbqb libvdwxc<br /> CP2K| is freely available from                            https://www.cp2k.org/<br /> CP2K| Program compiled at            2023年 06月 28日 星期三 23:59:21 CST<br /> CP2K| Program compiled on                                               ubuntua<br /> CP2K| Program compiled for                                   Linux-intel-x86_64<br /> CP2K| Data directory path                 /home/jibiaoli/codes/cp2k-2023.1/data<br /> CP2K| Input file name                                                copper.inp<br /> <br /> GLOBAL| Force Environment number                                              1<br /> GLOBAL| Basis set file name                                           BASIS_SET<br /> GLOBAL| Potential file name                                           POTENTIAL<br /> GLOBAL| MM Potential file name                                     MM_POTENTIAL<br /> GLOBAL| Coordinate file name                                      __STD_INPUT__<br /> GLOBAL| Method name                                                        CP2K<br /> GLOBAL| Project name                                                 FCC_Copper<br /> GLOBAL| Run type                                                       CELL_OPT<br /> GLOBAL| FFT library                                                       FFTW3<br /> GLOBAL| Diagonalization library                                            ELPA<br /> GLOBAL| DGEMM library                                                      BLAS<br /> GLOBAL| Minimum number of eigenvectors for ELPA usage                        16<br /> GLOBAL| Orthonormality check for eigenvectors                          DISABLED<br /> GLOBAL| Matrix multiplication library                                     COSMA<br /> GLOBAL| All-to-all communication in single precision                          F<br /> GLOBAL| FFTs using library dependent lengths                                  F<br /> GLOBAL| Grid backend                                                       AUTO<br /> GLOBAL| Global print level                                                  LOW<br /> GLOBAL| MPI I/O enabled                                                       T<br /> GLOBAL| Total number of message passing processes                             8<br /> GLOBAL| Number of threads for this process                                   13<br /> GLOBAL| This output is from process                                           0<br /> GLOBAL| Stack size for threads created by OpenMP (OMP_STACKSIZE)        default<br /> GLOBAL| CPU model name            Intel(R) Xeon(R) Platinum 8171M CPU @ 2.30GHz<br /> GLOBAL| CPUID                                                              1003<br /><br /> MEMORY| system memory details [Kb]<br /> MEMORY|                        rank 0           min           max       average<br /> MEMORY| MemTotal             98585440      98585440      98585440      98585440<br /> MEMORY| MemFree              57901124      57901124      57901124      57901124<br /> MEMORY| Buffers                521896        521896        521896        521896<br /> MEMORY| Cached               29522272      29522272      29522272      29522272<br /> MEMORY| Slab                  2499004       2499004       2499004       2499004<br /> MEMORY| SReclaimable          1413276       1413276       1413276       1413276<br /> MEMORY| MemLikelyFree        89358568      89358568      89358568      89358568<br /><br /> <br /> GENERATE|  Preliminary Number of Bonds generated:                             0<br /> GENERATE|  Achieved consistency in connectivity generation.<br /><br /> *******************************************************************************<br /> *******************************************************************************<br /> **                                                                           **<br /> **   #### ##   ## ####  ##### #####           #### ## ####  ## ## ##  ####   **<br /> **   ## ####   ## ## ## ###   #####          ##    ## ##  # ## ## ## ##      **<br /> **   #### ## # ## ## ## #####  ###           ##### ## ####  ## ## ## #####   **<br /> **   ##   ####### ## ## ##     ###              ## ## ## #  ## #####    ##   **<br /> **   ##   ## # ## ####  ##     ###           ####  ## ##  # ## ##### ####    **<br /> **                                                                           **<br /> **   SIRIUS: Domain specific library for electronic structure calculations   **<br /> **                                                                           **<br /> *******************************************************************************<br /><br />SIRIUS version : 7.3.2<br />git hash       : https://api.github.com/repos/electronic-structure/SIRIUS/git/ref/tags/v7.3.2<br />git branch     : release v7.3.2<br />build time     : 2023-06-28 23:11:48<br />start time     : Thu, 29 Jun 2023 18:25:42<br /><br />number of MPI ranks           : 8<br />MPI grid                      : 1 1<br />maximum number of OMP threads : 13<br />number of MPI ranks per node  : 8<br />page size (Kb)                : 4<br />number of pages               : 24646360<br />available memory (GB)         : 94<br /><br />FFT context for density and potential<br />=====================================<br />  comm size                             : 8<br />  plane wave cutoff                     : 20.000000<br />  grid size                             : 48 48 48   total : 110592<br />  grid limits                           : -23 24   -23 24   -23 24<br />  number of G-vectors within the cutoff : 21466<br />  local number of G-vectors             : 2672<br />  number of G-shells                    : 395<br /><br />FFT context for coarse grid<br />=====================================<br />  comm size                             : 1<br />  plane wave cutoff                     : 10.000000<br />  grid size                             : 24 24 24   total : 13824<br />  grid limits                           : -11 12   -11 12   -11 12<br />  number of G-vectors within the cutoff : 2689<br />  local number of G-vectors             : 337<br />  number of G-shells                    : 100<br /><br />number of local G-vector blocks: 1<br /><br />Unit cell<br />--------------------------------------------------------------------------------<br />lattice vectors<br /><font color="#ff0000">  a1 :       6.8219113397       0.0000000000       0.0000000000 <br />  a2 :       0.0000000000       6.8219113397       0.0000000000 <br />  a3 :       0.0000000000       0.0000000000       6.8219113397 </font><br />reciprocal lattice vectors<br />  b1 :       0.9210300448       0.0000000000       0.0000000000 <br />  b2 :       0.0000000000       0.9210300448       0.0000000000 <br />  b3 :       0.0000000000       0.0000000000       0.9210300448 <br /><br />unit cell volume :       317.48134574 [a.u.^3]<br />1/sqrt(omega)    :         0.05612300<br />MT volume        : 0.000000 ( 0.00%)<br />IT volume        : 317.481346 (100.00%)</div><div><br /></div><div><br /></div><div>&GLOBAL<br />  PROJECT FCC_Copper<br />  RUN_TYPE CELL_OPT<br />  PRINT_LEVEL LOW<br />&END GLOBAL<br /><br />&FORCE_EVAL<br />  METHOD SIRIUS<br />  STRESS_TENSOR ANALYTICAL<br />  &SUBSYS<br />    &CELL<br />      A 3.61 0.00 0.00<br />      B 0.00 3.61 0.00<br />      C 0.00 0.00 3.61<br />      SYMMETRY CUBIC<br />      PERIODIC XYZ<br />    &END CELL<br />    &COORD<br />      Cu   0.000 0.000 0.000<br />      Cu   0.000 1.805 1.805<br />      Cu   1.805 0.000 1.805<br />      Cu   1.805 1.805 0.000<br />    &END COORD<br />    &KIND Cu<br />       POTENTIAL GTH-PBE-q11<br />    &END KIND<br />  &END SUBSYS<br />  &PW_DFT<br />    &CONTROL<br />       VERBOSITY 2<br />    &END CONTROL<br />    &PARAMETERS<br />       ELECTRONIC_STRUCTURE_METHOD  pseudopotential<br />       GK_CUTOFF 5<br />       PW_CUTOFF 20<br />       NUM_DFT_ITER 399<br />       NGRIDK 10 10 10<br />    &END PARAMETERS<br />    &ITERATIVE_SOLVER<br />       ENERGY_TOLERANCE 1e-5<br />       NUM_STEPS 20<br />       SUBSPACE_SIZE 4<br />    &END ITERATIVE_SOLVER<br />    &MIXER<br />       BETA 0.3<br />       TYPE BROYDEN2<br />    &END MIXER<br />  &END PW_DFT<br />  &DFT<br />    &XC<br />      &XC_FUNCTIONAL<br />        &GGA_X_PBE<br />        &END GGA_X_PBE<br />        &GGA_C_PBE<br />        &END GGA_C_PBE<br />      &END XC_FUNCTIONAL<br />    &END XC<br />  &END DFT<br />&END FORCE_EVAL<br /><br />&MOTION<br />  &CELL_OPT<br />    MAX_ITER 200<br />    OPTIMIZER BFGS<br />    KEEP_SYMMETRY .TRUE.<br />  &END CELL_OPT<br />&END MOTION<br /><br /></div><div>Best</div><div><br /></div><div>Jibiao Li</div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Thursday, 29 June 2023 at 16:24:04 UTC+8 Jürg Hutter wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi
<br>
<br>you are doing a plane wave calculation, so you don't have to specify a Gaussian basis set.
<br>However, the crucial parameter is now the PW cutoff. Make sure you have a reasonable value,
<br>either by testing or by comparing to literature.
<br>
<br>regards
<br>JH
<br>
<br>________________________________________
<br>From: <a href data-email-masked rel="nofollow">cp...@googlegroups.com</a> <<a href data-email-masked rel="nofollow">cp...@googlegroups.com</a>> on behalf of Jibiao Li <<a href data-email-masked rel="nofollow">science...@gmail.com</a>>
<br>Sent: Thursday, June 29, 2023 3:23 AM
<br>To: <a href data-email-masked rel="nofollow">cp...@googlegroups.com</a>
<br>Subject: [CP2K:19024] Terrible lattice constant of FCC copper from cell optimization
<br>
<br>Hi all,
<br>
<br>I got a terrible lattice constant (2.71) that is in significant disagreement with the experimental value (3.61). Something wrong with my input file ?
<br>
<br>*******************************************************************************
<br> ***                    GEOMETRY OPTIMIZATION COMPLETED                      ***
<br> *******************************************************************************
<br>
<br>                    Reevaluating energy at the minimum
<br>
<br> CELL| Volume [angstrom^3]:                                            19.962031
<br> CELL| Vector a [angstrom]:       2.713     0.000     0.000   |a| =     2.712699
<br> CELL| Vector b [angstrom]:       0.000     2.713     0.000   |b| =     2.712699
<br> CELL| Vector c [angstrom]:       0.000     0.000     2.713   |c| =     2.712699
<br> CELL| Angle (b,c), alpha [degree]:                                    90.000000
<br> CELL| Angle (a,c), beta  [degree]:                                    90.000000
<br> CELL| Angle (a,b), gamma [degree]:                                    90.000000
<br> CELL| Requested initial symmetry:                                         CUBIC
<br> CELL| Numerically orthorhombic:                                             YES
<br> CELL| Periodicity                                                           XYZ
<br>
<br>
<br>&GLOBAL
<br>  PROJECT FCC_Copper
<br>  RUN_TYPE CELL_OPT
<br>  PRINT_LEVEL LOW
<br>&END GLOBAL
<br>
<br>&FORCE_EVAL
<br>  METHOD SIRIUS
<br>  STRESS_TENSOR ANALYTICAL
<br>  &SUBSYS
<br>    &CELL
<br>      A 3.61 0.00 0.00
<br>      B 0.00 3.61 0.00
<br>      C 0.00 0.00 3.61
<br>      SYMMETRY CUBIC
<br>      PERIODIC XYZ
<br>    &END CELL
<br>    &COORD
<br>      Cu   0.000 0.000 0.000
<br>      Cu   0.000 1.805 1.805
<br>      Cu   1.805 0.000 1.805
<br>      Cu   1.805 1.805 0.000
<br>    &END COORD
<br>    &KIND Cu
<br>      BASIS_SET DZVP-MOLOPT-SR-GTH
<br>      POTENTIAL GTH-PBE-q11
<br>    &END KIND
<br>  &END SUBSYS
<br>  &PW_DFT
<br>    &CONTROL
<br>       VERBOSITY 2
<br>    &END CONTROL
<br>    &PARAMETERS
<br>       ELECTRONIC_STRUCTURE_METHOD  pseudopotential
<br>       GK_CUTOFF 5.0
<br>       PW_CUTOFF 20.00
<br>       NUM_DFT_ITER 399
<br>       NGRIDK 10 10 10
<br>    &END PARAMETERS
<br>    &ITERATIVE_SOLVER
<br>       ENERGY_TOLERANCE 1e-5
<br>       NUM_STEPS 20
<br>       SUBSPACE_SIZE 4
<br>    &END ITERATIVE_SOLVER
<br>    &MIXER
<br>       BETA 0.3
<br>       TYPE BROYDEN2
<br>    &END MIXER
<br>  &END PW_DFT
<br>  &DFT
<br>    &XC
<br>      &XC_FUNCTIONAL
<br>        &GGA_X_PBE
<br>        &END GGA_X_PBE
<br>        &GGA_C_PBE
<br>        &END GGA_C_PBE
<br>      &END XC_FUNCTIONAL
<br>    &END XC
<br>  &END DFT
<br>&END FORCE_EVAL
<br>
<br>&MOTION
<br>  &CELL_OPT
<br>    MAX_ITER 200
<br>    OPTIMIZER BFGS
<br>    KEEP_SYMMETRY .TRUE.
<br>  &END CELL_OPT
<br>&END MOTION
<br>
<br>Best Regards
<br>
<br>Jibiao Li
<br>
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<br></blockquote></div>

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