Search found 4 matches

by MNPopov
Wed Feb 05, 2014 1:59 pm
Forum: VTSTTools
Topic: Calculating dynamical matrix using VTST 3.0c(d): a problem
Replies: 4
Views: 92127

Re: Calculating dynamical matrix using VTST 3.0c(d): a probl

Dear Graeme,

Sorry for a late reply! Here is what I get from OUTCARs using "grep 'configuration has the point symmetry' OUTCAR":
1) VASP(ISYM=2):
The static configuration has the point symmetry O_h .
The dynamic configuration has the point symmetry O_h .
The static configuration has the point ...
by MNPopov
Mon Feb 03, 2014 10:52 am
Forum: VTSTTools
Topic: Calculating dynamical matrix using VTST 3.0c(d): a problem
Replies: 4
Views: 92127

Re: Calculating dynamical matrix using VTST 3.0c(d): a probl

Dear Graeme,

Thank you for reply! I tried ISYM=0, and it didn't entirely work -- the calculation stopped after 4 ionic steps, reporting that required accuracy was reached. I found a solution to this problem by searching the forum -- one has to put a very small value (say, 1.0e-16) of EDIFFG in the ...
by MNPopov
Wed Jan 29, 2014 3:14 pm
Forum: VTSTTools
Topic: Calculating dynamical matrix using VTST 3.0c(d): a problem
Replies: 4
Views: 92127

Calculating dynamical matrix using VTST 3.0c(d): a problem

Dear Developers,

I would like to report a problem I faced with, trying to calculate frequencies using the VTST code v3.0c and v3.0d linked to VASP v5.3.3.

I tried to compare frequencies calculated using finite displacement method as implemented in:
1) the VASP code (IBRION=5, NFREE=1), and
2) the ...
by MNPopov
Wed Jul 03, 2013 2:43 pm
Forum: VTSTTools
Topic: VTST version 3.0a compatibility
Replies: 4
Views: 91875

Re: VTST version 3.0a compatibility

Dear Graeme,

I've just tried VASP 5.3.3 + VTST 3.0c -- the "KPAR!=1" problem seems to be unresolved so far.
Could we hope to get a fix in the near future?

Best regards,
Maxim.