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Thread-Topic: the question about nwchem
From: <mystwind@magicn.com>
To: <chemistry@ccl.net>
Cc: 
Subject: the question about nwchem
Date: Tue, 22 Jan 2002 13:57:36 +0900
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Dear CCL members
I've got some question about using nwchem
first, when I run nwchem on Digital UNIX V4.0F, I got a following error
massage 
______________________________________________________________
0:Floating Point Exception error, status=: 8
0:Floating Point Exception error, status=: 8
Last System Error Message from Task 0:: Not a typewriter
  0: ARMCI aborting 8 (0x8).
  0: ARMCI aborting 8 (0x8).
system error message: Not owner
_______________________________________________________________
Is there anybody to know how can solve it?
Actually, I am a novice of using nwchem but I think I've installed
according to the manual
and I tested several examples which were already included in nwchem 
then I got a same error massage
one of input source was
------------------------------------------------------------------------
start h2o
geometry units au autosym
  O 0.0  0.0   0.24
  H 0.0  1.43 -0.96
  H 0.0 -1.43 -0.96
end
basis spherical
  H library cc-pvdz
  O library cc-pvdz
end
scf
  print low
end
task scf optimize
mp2
  freeze core atomic
  print low
end
task mp2 optimize
------------------------------------------------------------------------
------
 

Next, I tested it on Red Hat Linux 7.1. then some examples worked well. 
but some had another following error massage.
 
------------------------------------------------------------------------
 ga_create failed for g_ht2        0
 
------------------------------------------------------------------------
 
------------------------------------------------------------------------
  current input line : 
    34: task ccsd(t)
 
------------------------------------------------------------------------
0:0:ga_create failed for g_ht2:: 0
0:0:ga_create failed for g_ht2:: 0
Last System Error Message from Task 0:: No such file or directory
  0: ARMCI aborting 0 (0).
  0: ARMCI aborting 0 (0).
system error message: No such file or directory
------------------------------------------------------------------------
-
Is there anybody to know what it means?
Help me....

Anyway, thank you for reading it .. 

Jino Kim,  mystwind@magicn.com

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From chemistry-request@server.ccl.net Tue Jan 22 05:05:21 2002
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Date: Tue, 22 Jan 2002 11:04:49 +0100 (MET)
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From: Anh Tho Nguyen <annhthng@ulb.ac.be>
To: chemistry@ccl.net
Subject: NMR plots for structure elucidation
X-Mailer: Webmail ULB v2.1

Dear CCler,

I should like to know if there is any free program to predict structure of organic compounds on the basis of NMR spectra data.
Shall you send me the information and it will be appreciated.

Nguyen Anh Tho
 



From chemistry-request@server.ccl.net Tue Jan 22 05:18:17 2002
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Date: Tue, 22 Jan 2002 11:17:58 +0100
From: "E.L. Willighagen" <egonw@sci.kun.nl>
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To: Anh Tho Nguyen <annhthng@ulb.ac.be>
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Anh Tho Nguyen wrote:
> 
> Dear CCler,
> 
> I should like to know if there is any free program to predict structure of organic compounds on the basis of NMR spectra data.
> Shall you send me the information and it will be appreciated.

Have a look at Seneca:

http://seneca.sourceforge.net/

regards, Egon

-- 
Egon Willighagen <egonw@sci.kun.nl>
Occupation: PhD on Molecular Representation
Hobbies: http://www-woc.sci.kun.nl/, http://cdk.sf.net/
         http://www.linuxfocus.org/

From chemistry-request@server.ccl.net Tue Jan 22 05:21:32 2002
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From: "Piotr Paneth" <paneth@ck-sg.p.lodz.pl>
To: <chemistry@ccl.net>
References: <3C4C3E63.6080405@vub.ac.be> <3C4C8211.82140730@schrodinger.com>
Subject: Re: CCL:FF, and QM/MM Software
Date: Tue, 22 Jan 2002 11:22:05 +0100
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Pierre,
a word of caution: Qsite does not permit vibrational analysis thus you
cannot confirm that your optimized structure is in fact a stationary point.
Good luck,
Piotr
>----- Original Message -----
>From: "George Vacek" <vacek@schrodinger.com>
>To: "Pierre Mignon" <pmignon@vub.ac.be>
>Cc: <chemistry@ccl.net>
>Sent: Monday, January 21, 2002 10:03 PM
>Subject: CCL:FF, and QM/MM Software


> Pierre Mignon wrote:
>
> > I am interested to buy a software to do QM/MM calcculations and FF
> > minimalisations for a project concerning biochemistry.  Could anybody
give me
> > suggestions and critics upon their use and also on other software ?
>
> Pierre,
>
> QSite is a mixed Quantum Mechanics/Molecular Mechanics package specially
tuned
> for studying reactive chemistry in biological systems.  QSite enables
highly
> accurate studies of protein-ligand interactions including
hydrogen-bonding,
> proton-transfer, charge-transfer reactions, metal-ligand binding and
> metalloenzyme catalysis.
>
> In QSite, the molecular mechanics calculations are performed using the
OPLS-AA
> force field, generally acknowledged to be the most reliable for treating
> medicinally relevant compounds and proteins.  For the QM, QSite benefits
> from
> all of Jaguar's strengths, including Jaguar's unique initial guess
algorithm
> that ensures convergence to the correct electronic ground state for
> metal-containing systems.  QSite is able to perform full geometry
optimizations
> and incorporate solvation effects using continuum dielectric methods.
>
> More complete information on QSite can be found at
http://www.schrodinger.com
>
> Regards,
> George Vacek
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> vacek@schrodinger.com    (503) 299-1150    http://www.schrodinger.com/
> Schrodinger, Inc., 1500 SW First Ave., Suite 1180, Portland, OR  97201
>
> Every culture that has lost myth has lost, by the same token, its
> natural, healthy creativity. -- Friedrich Nietzsche "The Birth of Tragedy"
1872
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-


****************************
Prof. dr hab. Piotr Paneth
Institute of Applied Radiation Chemistry
Technical University of Lodz
Zeromskiego 116, 90-924 Lodz, Poland
phone: (+48 42) 631-3199   fax: (+48 42) 636-5008



From chemistry-request@server.ccl.net Tue Jan 22 08:30:34 2002
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Date: Tue, 22 Jan 2002 14:34:44 +0100 (GMT+0100)
From: Csaba Hetenyi <csaba@ovlev1.mdche.u-szeged.hu>
To: CHEMISTRY@ccl.net
Cc: babel@mercury.aichem.arizona.edu
Subject: Babel1.6-Gasteiger charges
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Dear CCL members,

There is an option: "-charge" in the Babel file conversion program, which
adds partial atomic charges to eg. pdb files. 
Could you write me the literature reference of this charge calculation? (I
assume, it calculates Gasteiger charges. However, I found, that the
charges calculated by Babel are not the same for the same molecule as the
ones obtained online:
http://www2.chemie.uni-erlangen.de/services/petra/ with the aid of PETRA
program of the Gasteiger-group.)
Thanks.
Best,
Csaba



_______________________________________
Csaba Hetenyi, M.Sc., Ph.D. student
University of Szeged
Dept. of Medical Chemistry 
Addr.:H-6720 Szeged, Dom ter 8, Hungary
Tel.: +36-62545147 or: +36-62545136
Fax.: +36-62545971


From chemistry-request@server.ccl.net Tue Jan 22 07:52:10 2002
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Date: Tue, 22 Jan 2002 04:51:54 -0800 (PST)
From: "Alimet S. Ozen" <alimetsema@yahoo.com>
Subject: SUMMARY:PCM and transition states...
To: CCL <chemistry@ccl.net>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii

Dear CCL members,
Last week, I asked the following question about the
calculation of the second derivatives for PCM method
in Gaussian 98 and received very helpful responses. I
would like to thank Armando Navarro and James Hess for
their help and kind replies offering me to calculate
the numerical frequencies instead of the analytical
ones..
Actually I didn't want to post a summary before
finishing the calculation of the numerical frequencies
first in my own system. But,to my knowledge, there are
people in the same situation with me and curious about
the responses. So here are the responses I got
Thank you very much again..
         Sincerely yours
         Alimet S. Ozen

Here is my QUESTION:
> Subject: CCL:PCM and transition states...
> To: CCL <chemistry@ccl.net>
> 
> Dear CCL members,
> I am trying to model some radical reactions in DFT
> using Gaussian98 - both in the gas phase and in
> water
> as solvent. I have run solvent calculations with
> scrf=PCM...etc.. and they seem fine so far in terms
> of
> energy and molecular geometry for the ground and
> transition states. Also the results are somewhat
> "expected" when compared to the gas phase
> calculations.
> But as far as I know, 2nd derivatives are not
> available for PCM in g98. 
> So, my question is: how am I going to confirm my
> transition state structures in PCM in the absence of
> frequency calculations? is there a way of getting
> that
> legendary 1 imaginary frequency? Any kind of help is
> appreciated...
> 
> Thanks in advance...
 
> ps.I have the papers about procedures for the
> analytical second derivatives by Prof Tomasi's and
> Prof.Barone's groups and I think these are
> implemented
> in the development version of Gaussian program.
> But not in g98, are they?

and here are the responses:
1) Simply you have to use 
numerical frequencies since 1st anlytical 
derivatives are available, type: freq=numerical
        
         Armando Navarro
         Departamento de quimica organica
         Facultade de quimica
         Universidade de Santiago de Compostela


2)Dear Dr. Ozen,
       You are correct, analytic derivatives are not
available for the 
PCM models in Gaussian 98. You can, however, calculate
the frequencies 
numerically using analytically calculated first
derivatives.  This is 
probably the best way to confirm that your transition
states are true 
first-order saddle points and will also give you the
benefit of being 
able to calculate thermochemistry (zero-point
energies, etc).

             Regards,
            Jim Hess


James Hess, Ph.D.
Customer Support Scientist
Gaussian, Inc.
e-mail: help@gaussian.com



=====
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." 
-- One of the laws of computers and programming revealed

ozensem@boun.edu.tr
http://www.geocities.com/alchemistrial
http://www.geocities.com/alimet

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From chemistry-request@server.ccl.net Tue Jan 22 04:57:20 2002
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To: mystwind@magicn.com
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Subject: Re: CCL:the question about nwchem
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Hi Jino,

For your first problem, you should include a bit more of the output.
> From your message, it's not clear where the floating point exception
occurred. Generally, this kind of problems needs a bit of debugging.

The second one is probably lack of global memory. Look for the "memory"
keyword in the manual.

There's an NWChem users' mailing list for this sort of questions, and
normally the developers are also quite helpful if you send queries to
nwchem-support@emsl.pnl.gov, even though they don't guarantee support.
Have a look at the "support" section on the NWChem home page:

http://www.emsl.pnl.gov:2080/docs/nwchem/nwchem.html

It also contains information on how to sign up on the users' list.

Cheers,

  Herbert
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From chemistry-request@server.ccl.net Tue Jan 22 02:15:47 2002
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Thread-Topic: the question about building parallel computing without disk
From: <mystwind@magicn.com>
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Cc: 
Subject: the question about building parallel computing without disk
Date: Tue, 22 Jan 2002 16:14:53 +0900
Comment: ,N
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Dear CCLers
Sorry for distubing your work.
At the momenant I am tring to build parallel computing without disk on
Red Hat Linux 7.2
 
------------------------------------
Pentium 4 1.7GHz  *  4
Red Hat Linux 7.2
Kernel 2.4.7-10
------------------------------------
I've compiled following basic things in kernel of master node.
------------------------------------------------------------
prompt for development and/or incomplete code/drivers = y
kernel automounter support = y
kernel automounter virsion 4 support(also support v3) = y
NFS file system support = y
Provide NFSv3 client support = y
NFS server support = y
Provide NFSv3 server support = y
------------------------------------------------------------
but booting was failed.
I couldn't find any clue what it happened.
Is there anyone to help me? 
Anyway thank you for reading it .. 

Jino Kim,  mystwind@magicn.com


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From chemistry-request@server.ccl.net Tue Jan 22 11:15:27 2002
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Date: Tue, 22 Jan 2002 17:27:33 +0100
From: Cristina Ronzitti <ronzitti@crs4.it>
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Here is a small summary of answers to the question:

>Dear CCLers,
>I need to show box axes together with my system molecules : any
>suggestion ?
>I usually use, to visualize my system, the software Rasmol wich read >pdb
>format.
>Thanks in advance,

I have personally tried the first answer and I got a good result.
Regards
Cristina

The answers :
------------------------------------------------------------------
1)Here is an example of a box definition in pdb format. Just update the
coordinates. 

HEADER    CORNERS OF BOX
REMARK    CENTER (X Y Z)    2.544  -9.132   0.176
REMARK    DIMENSIONS (X Y Z)   16.145  22.414  18.127
ATOM      1  DUA BOX     1      -5.529 -20.339  -8.888
ATOM      2  DUB BOX     1      10.616 -20.339  -8.888
ATOM      3  DUC BOX     1      10.616 -20.339   9.239
ATOM      4  DUD BOX     1      -5.529 -20.339   9.239
ATOM      5  DUE BOX     1      -5.529   2.075  -8.888
ATOM      6  DUF BOX     1      10.616   2.075  -8.888
ATOM      7  DUG BOX     1      10.616   2.075   9.239
ATOM      8  DUH BOX     1      -5.529   2.075   9.239
CONECT    1    2    4    5
CONECT    2    1    3    6
CONECT    3    2    4    7
CONECT    4    1    3    8
CONECT    5    1    6    8
CONECT    6    2    5    7
CONECT    7    3    6    8
CONECT    8    4    5    7
----------------------------------------------------------------------
2)You could try Mercury, freely available from the Cambridge
Crystallographic Data
Centre:

http://www.ccdc.cam.ac.uk/prods/mercury/index.html
----------------------------------------------------------
3) IF you use VMD, you can easily create a box. 
http://www.ks.uiuc.edu/Research/vmd/
-------------------------------------------------------------

-- 
____________________________________________________________________

Cristina Ronzitti
Degree: final-year in chemistry                                     
Chemical Processes and Material Modelling Area - Fuel Cells
Project           
CRS4 - VI strada ovest - Z.I. - Macchiareddu - UTA - Cagliari 
FAX:+39-070-2796216          
____________________________________________________________________

From chemistry-request@server.ccl.net Tue Jan 22 11:55:56 2002
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Subject: problems with G98 and symetry
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                                                Hi

    Does anyone has an explanation for this error message in gaussian98
log file :


Symmetry turned off by external request.
 Sphere: Did not find three 2-fold axes


   We study an Oh complex with Manganese and we specify that we don't
want to conserve the symetry (NoSym), so we do not understand why
Gaussian is looking for  3 C2 axes.


    Thank You for your Help


                                            Thomas Merelle
                                            Student in computationnal
chemistry in Nice University  (France)




