(j3.2006) [Fwd: Fortran 2008 query]

[Keith Bierman]

I dunno, if you have all the constants in at compile time the compiler
might be able to leverage a multi-cast facility rather than N reads from a
billion nodes....

Keith Bierman
khbkhb at gmail.com
303 997 2749

On Thu, Oct 26, 2017 at 2:27 PM, Bill Long <longb at cray.com> wrote:

>
> > On Oct 26, 2017, at 2:58 PM, Van Snyder <Van.Snyder at jpl.nasa.gov> wrote:
> >
> >>
> >> We could say that it is a processor-dependent value greater or equal to
> 1023.
> >
> > Ridiculously small.  Why design a language for machines that were
> obsolete twenty years ago?  We should be designing for the future, not the
> past.
>
> You mean the real future where the amount of memory/core continues to
> decline, and where broadcasting the executable out to all the participating
> processors becomes slower as the size of the executable increases (because
> of initialized arrays)?    The better option in cases like this is usually
> to read the data in from an unformatted file when the program starts.
> Maybe just to image 1 and broadcast it from there.
>
> Cheers,
> Bill
>
>
> Bill Long
>      longb at cray.com
> Principal Engineer, Fortran Technical Support &   voice:  651-605-9024
> Bioinformatics Software Development                      fax:
> 651-605-9143
> Cray Inc./ 2131 Lindau Lane/  Suite 1000/  Bloomington, MN  55425
>
>
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