CCSD iterations does not converge

From NWChem

You are viewing a single post from the thread title above
Jump to: navigation, search

Click here for full thread
Clicked A Few Times
Threads 1
Posts 7
Dear Bert,

     Thank you for your reply. I have tried the options you suggested but the problem still exist. I am using NWChem 6.1.1 (which should be the latest one). Here is the information for the DIIS lshift,

         Correlation Information
-----------------------
Calculation type : Coupled-cluster singles & doubles w/ perturbation
Perturbative correction : (T)
Max iterations : 500
Residual threshold : 0.10D-05
T(0) DIIS level shift : 0.20D+00
L(0) DIIS level shift : 0.00D+00
T(1) DIIS level shift : 0.00D+00
L(1) DIIS level shift : 0.00D+00
T(R) DIIS level shift : 0.00D+00
T(I) DIIS level shift : 0.00D+00
CC-T/L Amplitude update : 5-th order DIIS
I/O scheme : Global Array Library
L-threshold : 0.10D-05
EOM-threshold : 0.10D-05
no EOMCCSD initial starts read in
TCE RESTART OPTIONS
READ_INT: F
WRITE_INT: F
READ_TA: F
WRITE_TA: F
READ_XA: F
WRITE_XA: F
READ_IN3: F
WRITE_IN3: F

     Does it mean the lshift has been set correctly? If so, is there more options that I can try other than wait for the new release?

     Thank you for your help.

SR


Who's here now Members 0 Guests 0 Bots/Crawler 0


AWC's: 2.5.10 MediaWiki - Stand Alone Forum Extension
Forum theme style by: AWC