From owner-chemistry@ccl.net Mon Sep 19 22:10:36 2005
From: "CCL" <owner-chemistry++server.ccl.net>
To: CCL
Subject: CCL: Cleaning up dusty deck fortran and converting to C/C++
Message-Id: <-29238-050919220534-3305-rp07L/TcICkK9EsQlZlfRQ++server.ccl.net>
X-Original-From: John McKelvey <jmmckel++attglobal.net>
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Date: Mon, 19 Sep 2005 21:03:39 -0500
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Sent to CCL by: John McKelvey [jmmckel++attglobal.net]

--Replace strange characters with the "at" sign to recover email address--.

Andy,

Thanks for the suggestions.  The issue is that I am collaborating with 
someone who has his code in C++ and mine is in fortran.  He wants it all 
in C++, so as I am not at all fluent in C of C++ I have taken alternate 
routes.  I have used both tidy and ftnchek to spot dead code; f2c does a 
good job also.

Many thanks,

John

CCL wrote:

>Sent to CCL by: Andrew Fant [fant[#]pobox.com]
>
>--Replace strange characters with the "at" sign to recover email address--.
>
>CCL wrote:
>  
>
>>Sent to CCL by: John McKelvey [jmmckel%a%attglobal.net]
>>
>>--Replace strange characters with the "at" sign to recover email address--.
>>
>>Hello!
>>
>>I have some old fortran I would like to convert to C..  Have used F2C on
>>an example code, which had me go  back and clean up the fortran first.. 
>>not a bad thing.
>>
>>Are there any utilities that would take a dusty fortran deck and clean
>>it up on its own... i.e. remove unused variables, and the like, for
>>example?  I have a 40,000 line F77 code I would like also to run in C.
>>
>>Many thanks,
>>
>>John McKelvey
>>    
>>
>
>John,
>   The usual suspects for cleaning up old Fortran are:
>
>Tidy:  http://www.unb.ca/fredericton/science/chem/ajit/f_tidy.htm
>
>Ftnchek: http://www.dsm.fordham.edu/~ftnchek/
>
>and
>
>Flow/Floppy:  http://www.netlib.org/floppy/contents.html
>
>As far as specific dead code and dead variable detection, most modern Fortran
>compilers have that capacity built into the optimizer.
>
>With regards to optimization, you do realize that moving to C or C++ will
>probably make your code less optimized and less optimizable, as well, I am sure.
> And f2c certainly doesn't make for particularly idiomatic c either, as I
>recall.  If the issue is not having access to a good Fortran compiler, you might
>want to take a look at the intel website.  They make available their compilers
>for certain non-commercial uses.   http://www.fortran.com is another good source
>for such things (disclaimer: I know the people who run the company and may hit
>them up for a beer at supercomputing if they get a surge in sales from my
>shameless plug 8-).
>
>Hope this helps,
>		Andy>
>
>
>
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>  
>