<div dir="ltr">Dear Tatiana, <div><br></div><div>Thank you for your reply. I tried your suggestion with and without startt1=32, but neither worked. The residuum still kept increasing. </div><div><br></div><div>Best, </div><div>Shaohong</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 23, 2015 at 6:13 AM, Tatiana Korona <span dir="ltr"><<a href="mailto:tania@tiger.chem.uw.edu.pl" target="_blank">tania@tiger.chem.uw.edu.pl</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Shaohong,<br>
<br>
It seems that the LIIS procedure worsens the convergence instead of improving it in this case, so please try<br>
<br>
local,liis=0<br>
<br>
command somewhere at the beginning of the input.<br>
<br>
Best wishes,<br>
<br>
Tatiana<div><div class="h5"><br>
<br>
On Tue, 22 Sep 2015, Shaohong Louis Li wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear Molpro users,<br>
<br>
I encountered a convergence problem in the left-hand EOM-CCSD program<br>
(Molpro 2012.1). The system is Ni(CO)4. The output is as follows. I found a<br>
similar problem in the archive of this mailing list where Dr. Korona<br>
suggested using startt1=32 option in eom; I tried that but it did not work.<br>
The input is attached. Any help will be appreciated.<br>
<br>
Best,<br>
Shaohong<br>
<br>
...<br>
Start left-hand EOM-CCSD program. Author: T. Korona (2001)<br>
<br>
Record 5555.2 for saving EOM-CCSD vectors of length 26517513 reserved<br>
<br>
<br>
Record 4500.8 for saving EOM-CCSD vectors of length 26517513 reserved<br>
<br>
<br>
First produce intermediates, this can take some time ...<br>
<br>
<br>
Solve a set of linear equations for Lambda<br>
<Lambda|[e-T H eT,exc.] = -<0|[e-T H eT,exc.]<br>
<br>
Iteration Residuum time/iteration time/total<br>
<br>
1 0.86E+00 8.7 8.7<br>
2 0.82E+00 9.3 17.9<br>
3 0.12E+01 9.3 27.3 liis<br>
4 0.19E+01 9.3 36.6 liis<br>
5 0.29E+01 9.3 45.8 liis<br>
...<br>
50 0.17E+10 9.3 462.4 liis<br>
<br>
Convergence not achieved in 50 iterations, norm of residuum<br>
0.1704047254E+10<br>
<br>
</blockquote>
<br></div></div>
Dr. Tatiana Korona <a href="http://tiger.chem.uw.edu.pl/staff/tania/index.html" rel="noreferrer" target="_blank">http://tiger.chem.uw.edu.pl/staff/tania/index.html</a><br>
Quantum Chemistry Laboratory, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, POLAND<br>
<br>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>Shaohong Louis Li 黎绍鸿<br></div><br><span style="font-family:arial;font-size:small">PhD Candidate</span><br>Truhlar Research Group<br><span>232 Smith Hall<br>
Department of Chemistry, University of Minnesota<br>
207 Pleasant Street SE, Minneapolis, MN 55455</span><br></div></div></div></div></div></div>
</div>