Re: NEC-LIST: Unix NEC or C port?

From: Rob <rob_at_email.domain.hidden>
Date: Mon, 30 Dec 2002 15:30:08 -0800

I've never seen a real C port. Do you have a reference? I have seen
the f2c conversions which end up with a working program but
unintelligible code. Thats because the f2c shared library much be
invoked during linking. BTW f2c is a very good way to get old Fortran
working on new compilers, as it has switches for promoting all variables
to double or complex double. I've used it alot.

Rob.

Jim Lux wrote:
>
> It's been (roughly) ported to C, but I have no idea of the quality or
> fidelity. I would imagine a better strategy would be to find the FORTRAN
> version compiled for Linux. There are a bunch of other variants it has been
> compiled for on the various archive sites.
>
> As far as Beowulf and clusters with NEC, it's been done quite a lot. Your
> real question is whether you want to do the matrix math on the cluster (i.e.
> one problem, divided up among processors), in which case you need to track
> down one of the modified versions that uses PVM or MPI matrix math
> libraries. Or, the alternate strategy, running a lot of parallel copies
> for, e.g. genetic algorithms, systematic sensitivity analysis, etc., in
> which case it's an embarrassingly parallel problem and some scripts will do
> very nicely, along with some sort of parser to scatter the input files and
> gather the output files.
>
> ----- Original Message -----
> From: "Mike Spenard" <mikes_at_signull.com>
> To: <nec-list_at_gweep.ca>
> Sent: Friday, December 27, 2002 6:57 PM
> Subject: NEC-LIST: Unix NEC or C port?
>
> > Has NEC been ported to a Unix variant or to C?
> > Being stuck in dos mode is a drag, i would like
> > to be able to run NEC on a beowolf cluster to
> > do some more sophisticated modeling.
> >
> > Mike Spenard
> > --
> > The NEC-List mailing list <nec-list_at_gweep.ca>
> > http://www.gweep.ca/mailman/listinfo.cgi/nec-list
> --
> The NEC-List mailing list <nec-list_at_gweep.ca>
> http://www.gweep.ca/mailman/listinfo.cgi/nec-list

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Received on Mon Dec 30 2002 - 23:39:11 EST

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