[Dynamite] compile status / radical idea

[Ian Holmes]

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On Tue, 18 Apr 2000, Guy Slater wrote:

> > > Three options are on the table: (1) keep going with IDL-to-C; (2) go Perl,
> > > possibly mixed with C; (3) go pure C. I am continuing to argue for (2),
> > > for reasons described below. I am also sympathetic to (3).
> 
> I'm not quite clear about the differences between (1) and (3).

Neither am I. Ewan?
I thought the point of (3) was to abandon the idlstubs.pl program
completely.

> Scroll to end for my $0.02
>
> ...
> 
> OK.  Religious preferences aside, I think a major problem
> with perl will be performance.
> 
> If telegraph was to be only a code generation system, then I reckon
> it would be viable, however I imagine having runtime code in C will
> incur quite a performance hit, and in perl it could be prohibitive.
> 
> I know that practical performance isn't a major issue for a prototype
> implementation, but it will impede development if it is too slow.
> 
> Maybe the perl interpreter is better than that.
> Can either of you convince me with a short DP example in perl?

Attached is a dummy SW implementation. It takes about a second of user
time to do a 100*100 matrix on my 450MHz box.

This _is_ too slow for end users, but I think it will be OK for
development of core ideas. By the time we start trying to implement
Genewise, we should be calling C routines from Perl for the DP.

> Also, do you know of any projects which have migrated smoothly
> from a perl prototype implementation to a clean C implementation ?

No. I'd be interested to hear more about Kevin's gazing experiences.

I'm less worried about how "clean" the final C implementation is in this
(Perl) scenario. There are many routes open to us. I want to keep the
original design modular, which should help.

> I'd be happy to do perl->C reimplementations,
> but I'm afraid I wouldn't be any use with the perl implementations.

Cool...
Ian

> 
> Guy
> --
> 
> 
> _______________________________________________
> Dynamite mailing list  -  Dynamite@bioperl.org
> http://www.bioperl.org/mailman/listinfo/dynamite
> 

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