From chemistry-request@server.ccl.net Fri Mar 29 09:42:09 2002
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Date: Fri, 29 Mar 2002 09:42:03 -0500 (EST)
From: Joe M Leonard <jle@world.std.com>
Message-Id: <200203291442.JAA17215@world.std.com>
To: chemistry@ccl.net
Subject: Linux/x86 compiler question

Folks,

I've been trying to develop numerically-intensive code on
an x86/Linux box (RedHat) after years of working on SGI's.
To date, I've found that the double-precision floating-point
performance of gcc isn't quite as good as IRIX C, and I
wonder whether it's the compiler, the chipset or both...

Has anybody tried different compilers with things like GAMESS
or Amber?  Has there been noticeable improvement with these
or similar codes?

Are there alternate chipset/compiler Linux's which I should
be looking at?

Thanks in advance!

Joe Leonard
jle@theworld.com (formerly jle@world.std.com - ISP changed name)


From chemistry-request@server.ccl.net Fri Mar 29 03:42:45 2002
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Date: Fri, 29 Mar 2002 10:45:12 +0100 (CET)
From: David van der Spoel <spoel@xray.bmc.uu.se>
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To: Kaiming Wang <kaiming_wang2000@yahoo.com>
cc: chemistry@ccl.net
Subject: Re: CCL:Any good paper on Grid-based interactions?
In-Reply-To: <20020328221032.34127.qmail@web20503.mail.yahoo.com>
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On Thu, 28 Mar 2002, Kaiming Wang wrote:

>
>Hello,
>I wonder if you can tell me some good articles on the methods of
>grid-based potential calculations. The more detail and more updated, the better.

Autodock uses it.
@Article{Morris98a,
  author =       {G. M. Morris and D. S. Goodsell and R. S. Halliday and
R. Huey and W. E. Hart and R. K. Belew and A. J. Olson},
  title =        {Automated docking using a {L}amarckian genetic algorithm
and an empirical binding free energy function},
  journal =      {J. Comp. Chem.},
  year =         1998,
  volume =       19,
  pages =        {1639-1662}
}


Groeten, David.
________________________________________________________________________
Dr. David van der Spoel, 	Biomedical center, Dept. of Biochemistry
Husargatan 3, Box 576,  	75123 Uppsala, Sweden
phone:	46 18 471 4205		fax: 46 18 511 755
spoel@xray.bmc.uu.se	spoel@gromacs.org   http://zorn.bmc.uu.se/~spoel
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



From chemistry-request@server.ccl.net Fri Mar 29 10:07:38 2002
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Subject: Conference: Exploring Modern Computational Chemistry 31Jul-2Aug02

Conference Announcement

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From chemistry-request@server.ccl.net Fri Mar 29 13:04:14 2002
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From: "Carsten Detering" <detering@u.washington.edu>
To: "ChemistryList" <chemistry@ccl.net>
Subject: CCL:Any good paper on Grid-based interactions?
Date: Fri, 29 Mar 2002 18:48:40 +0100
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>
>Hello,
>I wonder if you can tell me some good articles on the methods of
>grid-based potential calculations. The more detail and more updated, the
better.

Essentially, there are three ways of calculating grid-based potentials out
there:
the first is used in AutoDocks AutoGrid
Morris, G. M., D. S. Goodsell, et al. (1996). "Distributed automated docking
of flexible ligands to proteins: Parallel applications of AutoDock 2.4." J.
Comp. Aid. Mol. Des. 10: 293-304,
Morris, G. M., D. S. Goodsell, et al. (1998). "Automated Docking Using a
Lamarckian Genetic Algorithm and an Empirical Binding Free Energy
Funcition." J. Comp. Chem. 19(14): 1639-1662., SCF described in:
Mehler, E. L. and T. Solmajer (1991). "Electrostatic effects in proteins:
comparison of dielectric and charges models." Protein Engineering 4(8):
903-910.original grid method described by Goodford
Goodford, P. J. (1985). "A Computational Procedure for Determining
Energetically Favorable Binding Sites on Biologically Important
Macromolecules." J. Med. Chem. 28: 849-857.

There are programs like MEAD
Bashford, D. and K. Gerwert (1992). "Electrostatic Calculations of the pKa
Values of Ionizable Groups in Bacteriorhodopsin." J. Mol. Biol. 224:
473-486.
Bashford, D. and M. Karplus (1990). Biochemistry 29: 10219-10225.
or like DELPHI (MSI)
Honig, B. and A. Nicholls (1995). "Classical Electrostatics in Biology and
Chemistry." Science 268: 1144-1149.
which calculate electrostatics by solving the PB equation. The above
mentioned three ways are especially useful for calculating the electrostatic
interaction in solution.
The new release of DOCK5 (Kuntz et. al., UCSF) will use a Generalized-Born
approach.

Hope this helps you.

Carsten







------------------------

Carsten Detering,Ph.D
University of Washington
Seattle, WA 98195
Phone: 206 543 5081
email: detering@u.washington.edu


From chemistry-request@server.ccl.net Fri Mar 29 20:30:09 2002
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From: Mark Thompson <planaria@seanet.com>
Subject: gaussian integrals package
Date: Fri, 29 Mar 2002 17:30:03 US/Pacific
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Are there any stand-alone gaussian integrals packages out there that one can 
get source code access to?

Mark



