Re: [Caml-list] ocamlp3l and command line options: how?

["Luca de Alfaro" <luca@dealfaro.org>]

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Thanks!   I tried it, but to no avail. I have not only options, but also
command-line arguments:
what I am trying to do is run something like

foo -max_cores 4 -foovalue 3 file1 file1 file3 ...

I am trying to run, in ocamlp3l,

foo --p3lroot -max_cores 4 -foovalue 3 file1 file1 file3 ...

but the program seems to get stuck forever with no computation happening...
(I am compiling with the -thread mode).  In the camlp3l manual, it does not
say anything about what happens to command-line arguments; reading a bit of
the ocamlp3l code it seems it expects "processors" to be specified (even in
the thread mode? It would be a single processor...  and just how are
processors supposed to be specified?  only in the root process, or in all of
them? ).
Is there some up-to-date information about command-line processing in
ocamlp3l avaliable anywhere?

Many thanks for the help,

Luca

On 8/21/07, Maxence Guesdon <maxence.guesdon@inria.fr> wrote:
>
> On Tue, 21 Aug 2007 18:30:52 -0700
> "Luca de Alfaro" <luca@dealfaro.org> wrote:
>
> > Thanks, but the problem seems to be the opposite one.... ocamlp3l also
> > uses Args, and once I tell it to parse the command-line options, the
> > options such as -rootp3l do not seem to work any more.  The problem is
> > not that I need to avoid -rootp3l; the problem seems to be that the
> > ocamlp3l runtime doesn't see its own options any more...
>
> Hello,
>
> You can add options with the Command_options.add function.
> Exemple:
>
> let my_options = [
>   "-nl", Arg.Unit print_newline, "just print a newline" ;
>   (* other options ... *)
> ]
> in
> List.iter (fun (o,spec,s) -> Command_options.add o spec s) my_options;
>
> They will be handled when ocamlp3l analyzes the command line.
>
> Maxence
> >
> > Luca
> >
> > On 8/21/07, Till Varoquaux <till.varoquaux@gmail.com> wrote:
> > >
> > > The Arg module use a cursor to know which argument it is is currently
> > > parsing. You can therefor ignore the first argument like this:
> > >
> > > incr Arg.current
> > >
> > > before calling Arg.parse
> > >
> > > Cheers,
> > > Till
> > >
> > > On 8/21/07, Luca de Alfaro <luca@dealfaro.org> wrote:
> > > > I am trying to use ocamlp3l to parallelize some code.  Using the
> > > skeleton
> > > > paradigm was a lot of fun and quite easy, but I am stumbling on the
> > > easiest
> > > > of issues...
> > > >
> > > > My code needs some command-line options, and I am processing them
> with
> > > the
> > > > Arg package.  The ocamlp3l manual does not anything about what to do
> > > > for command-line options.
> > > >
> > > > I cannot simly run:
> > > >
> > > > ./foo -p3lroot -i blah -o boink
> > > >
> > > > because Arg tells me that it doesn't know what to do with -p3lroot.
> > > > Fine, but, then how do I do?  It's not really feasible for me to do
> > > without
> > > > command-line options...
> > > >
> > > > Many thanks in advance,
> > > >
> > > > Luca
> > > >
> > > > _______________________________________________
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> > > > Archives: http://caml.inria.fr
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> > > > Bug reports: http://caml.inria.fr/bin/caml-bugs
> > > >
> > > >
> > >
> > >
> > > --
> > > http://till-varoquaux.blogspot.com/
> > >
>

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