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本帖最后由 ghifi37 于 2020-6-29 09:55 编辑
自从xtb-6.3发布后,据称支持PBC GFN1-xTB的算法。
在编译xtb-6.3.1后,使用GFN0-xTB计算PBC体系是没问题的,就是结果有点不可靠;
改成--gfn 1后,还没开始算就报错了:
-------------------------------------------------
| G F N 1 - x T B |
-------------------------------------------------
Reference 10.1021/acs.jctc.7b00118
* Hamiltonian:
H0-scaling (s, p, d) 1.850000 2.250000 2.000000
zeta-weighting 0.000000
* Dispersion:
s8 2.400000
a1 0.630000
a2 5.000000
s9 0.000000
* Repulsion:
kExp 1.500000
rExp 1.000000
* Coulomb:
alpha 2.000000
third order atomic
anisotropic false
* Halogen bond correction:
rad-scale 1.300000
damping 0.440000
...................................................
: SETUP :
:.................................................:
: # basis functions 692 :
: # atomic orbitals 628 :
: # shells 226 :
: # electrons 688 :
: # halogen bonds 0 :
: max. iterations 1000 :
: Hamiltonian GFN1-xTB :
: restarted? false :PBC GFN1-xTB
: GBSA solvation false :
: PC potential false :
: electronic temp. 300.0000000 K :
: accuracy 1.0000000 :
: -> integral cutoff 0.2500000E+02 :
: -> integral neglect 0.1000000E-07 :
: -> SCF convergence 0.1000000E-05 Eh :
: -> wf. convergence 0.2000000E-04 e :
: Broyden damping 0.4000000 :
...................................................
iter E dE RMSdq gap omega full diag
###############################################PBC GFN1-xTB#########################
[ERROR] Program stopped due to fatal error
-6- Single point calculation terminated
-5- type_calculator_singlepoint: Electronic structure method terminated
-4- scf: Self consistent charge iterator terminated
-3- scc_core: Diagonalization of Hamiltonian failed
-2- mctc_lapack_sygvd: Failed to solve eigenvalue problem
-1- mctc_lapack_potrf: Factorisation of matrix failed
########################################################################
BTW,直接下编译好的二进制文件也是一样的问题。
请教下用起来PBC GFN1-xTB的网友,有什么要注意的地方吗?
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