Re: [AMBER-Developers] Fortran2003?

From: Robert Duke <>
Date: Tue, 3 Mar 2009 13:16:57 -0500

Two issues have to be addressed. Do you really inconvenience the user by
requiring F2003 - buying new compilers for the fun of it is not something
people like to do - the fast ones are expensive (I am still using ifort 8 on
some machines, and would have to check to see what it supports). Secondly,
what features are that compelling? I do just fine calling c routines
currently by being conservative, and the cost of that is nil. It does not
hurt current development one whit, at least for me. When F2003 is
more-or-less universally available, it makes sense to exploit. Before then,
you create grief for your users if you have a source product (and in this
community, our users are nothing if not cheap - for good reason). Just my
(conservative about inconveniencing users for my own benefit) opinion.
- Bob
----- Original Message -----
From: "Joe Krahn" <>
To: <>
Sent: Tuesday, March 03, 2009 1:05 PM
Subject: [AMBER-Developers] Fortran2003?

>I was discouraged about Fortran standards until F2003 came out. Among other
>things, it defines a standard method of directly interfacing to C, for both
>calling C and being called from C. This makes it easy to utilize common C
>libraries, and many other languages that use C as a standard interface. It
>will allow the advantages of Fortran math/array programming, while avoiding
>programming non-math code where Fortran is often a big pain.
> Does AMBER still need to support compilers that don't support any F2003
> features? Newer versions of Intel, Sun and Gnu Fortran all support at
> least the C-binding part of F2003.
> Has anyone else in AMBER-devel used any F2003?
> Joe Krahn
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Received on Wed Mar 04 2009 - 01:23:31 PST
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