[CP2K-user] [CP2K:19031] Terrible lattice constant of FCC copper from cell optimization

Jibiao Li science.sweden at gmail.com
Thu Jun 29 10:36:21 UTC 2023


Hi  Jürg,

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.

The lattice prior to the optimization: 
lattice vectors
  a1 :       6.8219113397       0.0000000000       0.0000000000
  a2 :       0.0000000000       6.8219113397       0.0000000000
  a3 :       0.0000000000       0.0000000000       6.8219113397



The head of The output file: 

 DBCSR| CPU Multiplication driver                                           
XSMM (U)
 DBCSR| Multrec recursion limit                                             
 512 (U)
 DBCSR| Multiplication stack size                                           
1000 (D)
 DBCSR| Maximum elements for images                                   
 UNLIMITED (U)
 DBCSR| Multiplicative factor virtual images                               
    1 (U)
 DBCSR| Use multiplication densification                                   
    T (D)
 DBCSR| Multiplication size stacks                                         
    3 (U)
 DBCSR| Use memory pool for CPU allocation                                 
    F (U)
 DBCSR| Number of 3D layers                                               
SINGLE (U)
 DBCSR| Use MPI memory allocation                                           
   F (U)
 DBCSR| Use RMA algorithm                                                   
   F (U)
 DBCSR| Use Communication thread                                           
    T (U)
 DBCSR| Communication thread load                                           
  42 (D)
 DBCSR| MPI: My process id                                                 
    0
 DBCSR| MPI: Number of processes                                           
    8
 DBCSR| OMP: Current number of threads                                     
   13
 DBCSR| OMP: Max number of threads                                         
   13
 DBCSR| Split modifier for TAS multiplication algorithm                 
 1.0E+00 (U)

SIRIUS 7.3.2, git hash: 
https://api.github.com/repos/electronic-structure/SIRIUS/git/ref/tags/v7.3.2

  **** **** ******  **  PROGRAM STARTED AT               2023-06-29 
18:25:42.062
 ***** ** ***  *** **   PROGRAM STARTED ON                               
ubuntua
 **    ****   ******    PROGRAM STARTED BY                             
 jibiaoli
 ***** **    ** ** **   PROGRAM PROCESS ID                               
 333548
  **** **  *******  **  PROGRAM STARTED IN             
 /home/jibiaoli/calc/test

 CP2K| version string:                                       CP2K version 
2023.1
 CP2K| source code revision number:                                 
 git:b888bd8
 CP2K| cp2kflags: omp fftw3 libxc pexsi elpa parallel scalapack cosma xsmm 
max_c
 CP2K|            ontr=4 plumed2 spglib mkl sirius libvori libbqb libvdwxc
 CP2K| is freely available from                           
 https://www.cp2k.org/
 CP2K| Program compiled at            2023年 06月 28日 星期三 23:59:21 CST
 CP2K| Program compiled on                                               
ubuntua
 CP2K| Program compiled for                                   
Linux-intel-x86_64
 CP2K| Data directory path                 
/home/jibiaoli/codes/cp2k-2023.1/data
 CP2K| Input file name                                               
 copper.inp
 
 GLOBAL| Force Environment number                                           
   1
 GLOBAL| Basis set file name                                           
BASIS_SET
 GLOBAL| Potential file name                                           
POTENTIAL
 GLOBAL| MM Potential file name                                     
MM_POTENTIAL
 GLOBAL| Coordinate file name                                     
 __STD_INPUT__
 GLOBAL| Method name                                                       
 CP2K
 GLOBAL| Project name                                                 
FCC_Copper
 GLOBAL| Run type                                                       
CELL_OPT
 GLOBAL| FFT library                                                       
FFTW3
 GLOBAL| Diagonalization library                                           
 ELPA
 GLOBAL| DGEMM library                                                     
 BLAS
 GLOBAL| Minimum number of eigenvectors for ELPA usage                     
   16
 GLOBAL| Orthonormality check for eigenvectors                         
 DISABLED
 GLOBAL| Matrix multiplication library                                     
COSMA
 GLOBAL| All-to-all communication in single precision                       
   F
 GLOBAL| FFTs using library dependent lengths                               
   F
 GLOBAL| Grid backend                                                       
AUTO
 GLOBAL| Global print level                                                 
 LOW
 GLOBAL| MPI I/O enabled                                                   
    T
 GLOBAL| Total number of message passing processes                         
    8
 GLOBAL| Number of threads for this process                                 
  13
 GLOBAL| This output is from process                                       
    0
 GLOBAL| Stack size for threads created by OpenMP (OMP_STACKSIZE)       
 default
 GLOBAL| CPU model name            Intel(R) Xeon(R) Platinum 8171M CPU @ 
2.30GHz
 GLOBAL| CPUID                                                             
 1003

 MEMORY| system memory details [Kb]
 MEMORY|                        rank 0           min           max       
average
 MEMORY| MemTotal             98585440      98585440      98585440     
 98585440
 MEMORY| MemFree              57901124      57901124      57901124     
 57901124
 MEMORY| Buffers                521896        521896        521896       
 521896
 MEMORY| Cached               29522272      29522272      29522272     
 29522272
 MEMORY| Slab                  2499004       2499004       2499004       
2499004
 MEMORY| SReclaimable          1413276       1413276       1413276       
1413276
 MEMORY| MemLikelyFree        89358568      89358568      89358568     
 89358568

 
 GENERATE|  Preliminary Number of Bonds generated:                         
    0
 GENERATE|  Achieved consistency in connectivity generation.

 *******************************************************************************
 *******************************************************************************
 **                                                                         
  **
 **   #### ##   ## ####  ##### #####           #### ## ####  ## ## ##  #### 
  **
 **   ## ####   ## ## ## ###   #####          ##    ## ##  # ## ## ## ##   
   **
 **   #### ## # ## ## ## #####  ###           ##### ## ####  ## ## ## ##### 
  **
 **   ##   ####### ## ## ##     ###              ## ## ## #  ## #####    ## 
  **
 **   ##   ## # ## ####  ##     ###           ####  ## ##  # ## ##### #### 
   **
 **                                                                         
  **
 **   SIRIUS: Domain specific library for electronic structure calculations 
  **
 **                                                                         
  **
 *******************************************************************************

SIRIUS version : 7.3.2
git hash       : 
https://api.github.com/repos/electronic-structure/SIRIUS/git/ref/tags/v7.3.2
git branch     : release v7.3.2
build time     : 2023-06-28 23:11:48
start time     : Thu, 29 Jun 2023 18:25:42

number of MPI ranks           : 8
MPI grid                      : 1 1
maximum number of OMP threads : 13
number of MPI ranks per node  : 8
page size (Kb)                : 4
number of pages               : 24646360
available memory (GB)         : 94

FFT context for density and potential
=====================================
  comm size                             : 8
  plane wave cutoff                     : 20.000000
  grid size                             : 48 48 48   total : 110592
  grid limits                           : -23 24   -23 24   -23 24
  number of G-vectors within the cutoff : 21466
  local number of G-vectors             : 2672
  number of G-shells                    : 395

FFT context for coarse grid
=====================================
  comm size                             : 1
  plane wave cutoff                     : 10.000000
  grid size                             : 24 24 24   total : 13824
  grid limits                           : -11 12   -11 12   -11 12
  number of G-vectors within the cutoff : 2689
  local number of G-vectors             : 337
  number of G-shells                    : 100

number of local G-vector blocks: 1

Unit cell
--------------------------------------------------------------------------------
lattice vectors
  a1 :       6.8219113397       0.0000000000       0.0000000000 
  a2 :       0.0000000000       6.8219113397       0.0000000000 
  a3 :       0.0000000000       0.0000000000       6.8219113397 
reciprocal lattice vectors
  b1 :       0.9210300448       0.0000000000       0.0000000000 
  b2 :       0.0000000000       0.9210300448       0.0000000000 
  b3 :       0.0000000000       0.0000000000       0.9210300448 

unit cell volume :       317.48134574 [a.u.^3]
1/sqrt(omega)    :         0.05612300
MT volume        : 0.000000 ( 0.00%)
IT volume        : 317.481346 (100.00%)


&GLOBAL
  PROJECT FCC_Copper
  RUN_TYPE CELL_OPT
  PRINT_LEVEL LOW
&END GLOBAL

&FORCE_EVAL
  METHOD SIRIUS
  STRESS_TENSOR ANALYTICAL
  &SUBSYS
    &CELL
      A 3.61 0.00 0.00
      B 0.00 3.61 0.00
      C 0.00 0.00 3.61
      SYMMETRY CUBIC
      PERIODIC XYZ
    &END CELL
    &COORD
      Cu   0.000 0.000 0.000
      Cu   0.000 1.805 1.805
      Cu   1.805 0.000 1.805
      Cu   1.805 1.805 0.000
    &END COORD
    &KIND Cu
       POTENTIAL GTH-PBE-q11
    &END KIND
  &END SUBSYS
  &PW_DFT
    &CONTROL
       VERBOSITY 2
    &END CONTROL
    &PARAMETERS
       ELECTRONIC_STRUCTURE_METHOD  pseudopotential
       GK_CUTOFF 5
       PW_CUTOFF 20
       NUM_DFT_ITER 399
       NGRIDK 10 10 10
    &END PARAMETERS
    &ITERATIVE_SOLVER
       ENERGY_TOLERANCE 1e-5
       NUM_STEPS 20
       SUBSPACE_SIZE 4
    &END ITERATIVE_SOLVER
    &MIXER
       BETA 0.3
       TYPE BROYDEN2
    &END MIXER
  &END PW_DFT
  &DFT
    &XC
      &XC_FUNCTIONAL
        &GGA_X_PBE
        &END GGA_X_PBE
        &GGA_C_PBE
        &END GGA_C_PBE
      &END XC_FUNCTIONAL
    &END XC
  &END DFT
&END FORCE_EVAL

&MOTION
  &CELL_OPT
    MAX_ITER 200
    OPTIMIZER BFGS
    KEEP_SYMMETRY .TRUE.
  &END CELL_OPT
&END MOTION

Best

Jibiao Li
On Thursday, 29 June 2023 at 16:24:04 UTC+8 Jürg Hutter wrote:

> Hi
>
> you are doing a plane wave calculation, so you don't have to specify a 
> Gaussian basis set.
> However, the crucial parameter is now the PW cutoff. Make sure you have a 
> reasonable value,
> either by testing or by comparing to literature.
>
> regards
> JH
>
> ________________________________________
> From: cp... at googlegroups.com <cp... at googlegroups.com> on behalf of Jibiao 
> Li <science... at gmail.com>
> Sent: Thursday, June 29, 2023 3:23 AM
> To: cp... at googlegroups.com
> Subject: [CP2K:19024] Terrible lattice constant of FCC copper from cell 
> optimization
>
> Hi all,
>
> 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 ?
>
>
> *******************************************************************************
> *** GEOMETRY OPTIMIZATION COMPLETED ***
>
> *******************************************************************************
>
> Reevaluating energy at the minimum
>
> CELL| Volume [angstrom^3]: 19.962031
> CELL| Vector a [angstrom]: 2.713 0.000 0.000 |a| = 2.712699
> CELL| Vector b [angstrom]: 0.000 2.713 0.000 |b| = 2.712699
> CELL| Vector c [angstrom]: 0.000 0.000 2.713 |c| = 2.712699
> CELL| Angle (b,c), alpha [degree]: 90.000000
> CELL| Angle (a,c), beta [degree]: 90.000000
> CELL| Angle (a,b), gamma [degree]: 90.000000
> CELL| Requested initial symmetry: CUBIC
> CELL| Numerically orthorhombic: YES
> CELL| Periodicity XYZ
>
>
> &GLOBAL
> PROJECT FCC_Copper
> RUN_TYPE CELL_OPT
> PRINT_LEVEL LOW
> &END GLOBAL
>
> &FORCE_EVAL
> METHOD SIRIUS
> STRESS_TENSOR ANALYTICAL
> &SUBSYS
> &CELL
> A 3.61 0.00 0.00
> B 0.00 3.61 0.00
> C 0.00 0.00 3.61
> SYMMETRY CUBIC
> PERIODIC XYZ
> &END CELL
> &COORD
> Cu 0.000 0.000 0.000
> Cu 0.000 1.805 1.805
> Cu 1.805 0.000 1.805
> Cu 1.805 1.805 0.000
> &END COORD
> &KIND Cu
> BASIS_SET DZVP-MOLOPT-SR-GTH
> POTENTIAL GTH-PBE-q11
> &END KIND
> &END SUBSYS
> &PW_DFT
> &CONTROL
> VERBOSITY 2
> &END CONTROL
> &PARAMETERS
> ELECTRONIC_STRUCTURE_METHOD pseudopotential
> GK_CUTOFF 5.0
> PW_CUTOFF 20.00
> NUM_DFT_ITER 399
> NGRIDK 10 10 10
> &END PARAMETERS
> &ITERATIVE_SOLVER
> ENERGY_TOLERANCE 1e-5
> NUM_STEPS 20
> SUBSPACE_SIZE 4
> &END ITERATIVE_SOLVER
> &MIXER
> BETA 0.3
> TYPE BROYDEN2
> &END MIXER
> &END PW_DFT
> &DFT
> &XC
> &XC_FUNCTIONAL
> &GGA_X_PBE
> &END GGA_X_PBE
> &GGA_C_PBE
> &END GGA_C_PBE
> &END XC_FUNCTIONAL
> &END XC
> &END DFT
> &END FORCE_EVAL
>
> &MOTION
> &CELL_OPT
> MAX_ITER 200
> OPTIMIZER BFGS
> KEEP_SYMMETRY .TRUE.
> &END CELL_OPT
> &END MOTION
>
> Best Regards
>
> Jibiao Li
>
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