From katagiri@nrim.go.jp  Thu Jul  9 01:46:48 1998
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Date: Thu, 9 Jul 1998 14:46:44 +0900 (JST)
From: KATAGIRI Masahiko <katagiri@nrim.go.jp>
Message-Id: <199807090546.OAA02882@momokusa.nrim.go.jp>
To: chemistry@www.ccl.net
Cc: T.Somasundaram@qub.ac.uk
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Subject: LaPack on SX4
X-Subject: LaPack on SX4
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Dear CCLer's

I would like to compile LaPack on NEC SX4.
Does anyone have optimized LaPack code or Makefile on SX4?

Any information will be appreciated.

Thanks in advance.

regards,
-Masa Katagiri

katagiri@nrim.go.jp





From dgeuenic@tu-bs.de  Thu Jul  9 03:43:30 1998
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From: Daniel Geuenich <dgeuenic@tu-bs.de>
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Subject: Summary addendum:3D-grid of current density tensors
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Dear CCL-lers,


about two weeks ago I summarized my question concerning the computation
of
a 3D-grid of current density tensors. The only answer I got to this time
said that
my problem is not solvable with G94.

After this I received this message from Ernst-Udo Wallenborn:


>Hi Daniel,
>
>
>i should've answered your question, but i just didn't find the time.
>
>On Tue, 23 Jun 1998, Daniel Geuenich wrote:
>>
>> I am interested in generating a plot of the current density.
>> When using the NMR=CSGT or NMR=IGAIM keyword, Gaussian 94
>> prints only one current density tensor, but what I need is
>> a calculation of the current density tensor over a
>> 3-dimensional grid of points.
>
>
>
>Doug Fox is only partially right. While g94 does not include the
>feature you request as a regular option, and Bader's AIMPAC code is a
>bad starting point for trying to include it, Jerzy Cioslowski's
>implementation of CSGT in g94 does calculate this. If you don't mind
>hacking link 1002 (basically you have to include a couple of
>write statements at the right point) you can get a printout of the
>current density tensor field on the grid used by g94. You can
>then refine the data (remap onto a different grid for example)
>and visualize it using your favourite visualisation system (avs
>would be my advice).
>
>This is suboptimal of course, for one would like to have something
>like a subroutine CurrTens(moldata,grid), but it did work for us.
>(Wallenborn, Haldimann, Klaerner, and Diederich, Chem. Eur. J.,
>submitted)
>
>
>--
>Ernst-Udo Wallenborn
>Laboratorium fuer Physikalische Chemie
>ETH Zuerich


Many thanks to Ernst-Udo Wallenborn!



From darrena@chem.leeds.ac.uk  Thu Jul  9 06:07:50 1998
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Date: Thu, 9 Jul 1998 11:02:33 +0100
To: chemistry@www.ccl.net
From: Darren Andrews <darrena@chemistry.leeds.ac.uk>
Subject: Big Frequency Calcs. with little resources


Does anybody know how to calculate frequencies with large systems, i.e.,
about 380 basis functions at the HF level with limited file sizes?  I have
a linux box with a max file size of 2Gb, and also 512M of RAM.  If I use
GAMESS(US) to calculate the frequencies it craps out at the 2Gb file limit
(I guess it has to write all the integrals to disk first) even though I ran
a direct calculation.  I tried G92 on an SGI, because I was told it would
handle the direct calculation without writing big files to disk first, but
it just kind of stopped with no explanation after a few days.

Anyone have a solution?

Darren Andrews.

PostGraduate Student,
School of Chemistry,
University of Leeds,
Leeds.
LS2 9JT.
England.

Darrena@chem.leeds.ac.uk

Tel: 0113 233 6594.
Fax: 0113 233 6565.

From herbert.homeier@chemie.uni-regensburg.de  Thu Jul  9 07:15:24 1998
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Date: Thu, 9 Jul 1998 13:17:18 +0200
From: Herbert Homeier t4720 <herbert.homeier@chemie.uni-regensburg.de>
Message-Id: <9807091117.AA28749@rchs4.chemie.uni-regensburg.de>
To: chemistry@www.ccl.net
Subject: Change of URL


Dear CCL readers,

please note that the WWW server at 
  rchs1.chemie.uni-regensburg.de
  (or equivalently, rchs1.uni-regensburg.de)
ceased to function due to hardware problems 
and will not be available in future.

Please use the WWW server
  www.chemie.uni-regensburg.de
instead, and please, update all links in your
bookmarks/ html pages accordingly.

Thus, any old URLs like
  http://rchs1.chemie.uni-regensburg.de/ ...
  http://rchs1.uni-regensburg.de/ ...
should be replaced by
  http://www.chemie.uni-regensburg.de/ ...

In particular, this applies to the list of
 Chemistry Servers and Resources (via Theoretical Chemistry, University of
 Regensburg) 
that should be accessed now via
 http://www.chemie.uni-regensburg.de/external.html
and the 
 Chemistry Conference Listing 
that should be accessed now via
 http://www.chemie.uni-regensburg.de/~hoh05008/KONFERENZEN/

Sorry for all the inconveniences.

Best regards

Herbert Homeier

--
Priv.-Doz. Dr. Herbert H. H. Homeier
Institut fuer Physikalische und Theoretische Chemie
Universitaet Regensburg, D-93040 Regensburg, Germany
Phone: +49-941-943 4720  FAX: +49-941-943 4719
email: herbert.homeier@na-net.ornl.gov 
WWW: http://www.chemie.uni-regensburg.de/~hoh05008

From hinsen@dirac.cnrs-orleans.fr  Thu Jul  9 12:17:55 1998
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From: Konrad Hinsen <hinsen@cnrs-orleans.fr>
To: smithja@ucarb.com
CC: chemistry@www.ccl.net
In-reply-to: <F39846429B9CD011ADDD00805FFEC4B4D538AF@sctms03.sct.ucarb.com>
	(smithja@ucarb.com)
Subject: Re: CCL:Summary: Visualization of molecules and arbitrary geometric o
	bjects
References:  <F39846429B9CD011ADDD00805FFEC4B4D538AF@sctms03.sct.ucarb.com>


> This reminds me of a related feature I've always wanted to see in
> modeling packages.  I'd like to be able to select a subset of atoms in a
>...
> I think that quantifying the shape and size of molecular fragments
> (cavities) is an important, useful and often overlooked aspect of most
> molecular modeling packages.

The essential problem is the use of "packages", i.e. monolithic
programs, for molecular modelling. It is unlikely that any such
package will ever provide all features you want, and so in practice
you have to adapt your wishlist to what's available. Even if a program
is available in source code, few people are able to make substantial
modifications or additions, because the complexity of a big program
code requires significant programming experience and plenty of time.

During the last two years I have developed an alternative approach: a
molecular modelling toolkit, i.e. a library of useful operations in
molecular modelling, to be used with (and to a large part written in)
Python, a high-level general-purpose easy-to-learn programming
language. This library contains basic functions that are always needed
(system construction, import/export, geometric operations, etc.), plus
a large range of more specialized techniques. It even includes some of
the techniques that were asked for in the post I am replying to. With
this fundamental stuff out of the way, implementing additional
specialized methods becomes much easier. Moreover, it is not necessary
to understand or even look at any of the original code of the library,
even though this might be helpful in some cases. To give an example, I
was able to add a complete new forcefield (admittedly a simple one) in
an afternoon, including testing, and without modifying or even looking
at any of the original files.

For those who want to know more about this approach, have a look at

    http://starship.skyport.net/crew/hinsen/mmtk.html

-- 
-------------------------------------------------------------------------------
Konrad Hinsen                            | E-Mail: hinsen@cnrs-orleans.fr
Centre de Biophysique Moleculaire (CNRS) | Tel.: +33-2.38.25.55.69
Rue Charles Sadron                       | Fax:  +33-2.38.63.15.17
45071 Orleans Cedex 2                    | Deutsch/Esperanto/English/
France                                   | Nederlands/Francais
-------------------------------------------------------------------------------

From paul.wilkie@virgin.net  Thu Jul  9 19:21:02 1998
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Date: Fri, 10 Jul 1998 00:17:25 +0100
From: Paul Wilkie <paul.wilkie@virgin.net>
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To: KATAGIRI Masahiko <katagiri@nrim.go.jp>
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Subject: Insulin Receptor with ATP
References: <199807090546.OAA02882@momokusa.nrim.go.jp>
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Dear CCL'ers,

I am a PhD research student at the University of Sunderland, England. Having
recently i.e. yesterday, downloaded the active form of the Insulin Receptor
Kinase with ATP, I have had endless troubles. The main problem is that when I
load in the receptor, the bond order for the ATP and the phosphorylated tyrosine
residues is not recognized causing the full receptor complex to return a " Could
not assign charge " statement even when I charge the appropriate residues.
Although this is a problem that can be, and has been, dealt with, it is highly
annoying. I would be interested in hearing from anyone who has experienced
similar difficulties with 1ir3.pdb from Brookhaven and if there is a simplier
solution other than the long-handed approach that I have had to use i.e. changing
the bond order's manually etc etc. I would also like to hear from those who are
also modeling kinase's esp EGFR and Insulin.

Cheers,

Paul Wilkie


