Re: multiple cpu's

[Benoit SIGOURE]

On Aug 20, 2007, at 5:15 PM, Jim Meyering wrote:

> Benoit SIGOURE <address@hidden> wrote:
>
> > On Aug 12, 2007, at 11:09 PM, Ralf Wildenhues wrote:
> >
> > > Hello Jim,
> > >
> > > * Jim Meyering wrote on Sun, Aug 12, 2007 at 12:46:20PM CEST:
> > > > On a related note, it'd sure be nice if "make -j4 check" would run
> > > > its
> > > > tests in parallel.  Especially on an SMP system, and/or when some
> > > > tests sleep for a few (interminable :-) seconds.
> > > >
> > > > Of course, this might not be trivial, especially trying to keep
> > > > the resulting Makefile.in portable.  However, even if it means
> > > > I'd need to use a special option to generate a GNU-make-only
> > > > Makefile.in, I'd happily use the result for day to day work.
> > >
> > > IIRC, Akim Demaille posted a patch a while ago on an automake  
> > > list for
> > > this, GNU make-specific.  I don't recall how much work was left  
> > > to do,
> > > but on my list it's a bit on the far end.
> >
> > Yep:
> > http://lists.gnu.org/archive/html/automake/2007-02/msg00015.html
> > The whole idea is to have one input file per test (say a .chk file)
> > that produces a .log file.  We can then benefit from the parallelism
> > of make with implicit rules (exactly like for .c -> .o).
> >
> > The file has slightly evolved since then but I can post an updated
> > version if someone is interested.
>
> That'd be great.
>
> FYI, in testing this, I've been using check.mk from vaucanson-trunk.
> Is that what you mean?

Not exactly, in fact Akim and I use this piece of Makefile in several  
other projects, some of which are unfortunately not open source.  You  
can find a more up to date version at:
http://www.tsunanet.net/~tsuna/check.mk
It has a couple of bug fixes and enhancements compared to that in  
vaucanson HEAD (which ought to be updated).

I hope this helps.

Cheers,

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

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