[COFF] Fwd: Old and Tradition was [TUHS] V9 shell

[Clem Cole]

On Mon, Feb 24, 2020 at 10:19 AM Larry McVoy <lm at mcvoy.com> wrote:

> On Mon, Feb 24, 2020 at 10:40:10AM +0100, Sijmen J. Mulder wrote:
> > Larry McVoy <lm at mcvoy.com> wrote:
> > > Fortran programmers are formally trained (at least I
> > > was, there was a whole semester devoted to this) in accumulated errors.
> > > You did a deep dive into how to code stuff so that the error was
> reduced
> > > each time instead of increased.  It has a lot to do with how floating
> > > point works, it's not exact like integers are.
> >
> > I was unaware that there's formal training to be had around this but
> > it's something I'd like to learn more about. Any recommendations on
> > materials? I don't mind diving into Fortran itself either.
>
> My training was 35 years ago, I have no idea where to go look for this
> stuff now.  I googled and didn't find much.  I'd go to the local
> University that teaches Fortran and ask around.
>


   1. Download the Intel Fortran compiler for your Mac, Linux or Windows
   box.  This will also give you a number of tuning tools.   This compiler can
   understand syntax back to FORTRAN-66 through Fortran2018  (and often
   without any switches - it can usually figure it out and do the right thing).
   2. Get a copy of
   https://www.amazon.com/Explained-Numerical-Mathematics-Scientific-Computation/dp/0199601429
   3. Go to the physics and chem depts a place start as Larry said
   4. Or head to a supercomputer center in the US or EU
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