Re: FORTH plusminus, was Re: [f-cpu] Winograd DCT on my seul.org account

[Yann Guidon <whygee@f-cpu.org>]

cedric wrote:
> > > Hi,
> > hi ! too
> Hi ! three ;-)
hi, five (after Jürgen)

> > > > > But what we can do is detecting where we lost cycle.
> > > > > (It's what I plan to do in my asm).
> > > > it's like calling the doctor who says : "you're sick" and goes away.
> > > Exactly, but actually the human are better than our algorithm, no ?
> > no, what i meant is : knowing the problem doesn't solve it.
> > If you can detect a pipeline stall, it won't tell you why it is there,
> > and how to remove it. OTOH an algorithm that creates good code
> > _by_construction_ is more interesting because you don't have to check the
> > result.
> you can't create a code right scheduling _by_construction_. You nead a special
> pass that do the scheduling.
no. that's the point. you have to think about scheduling with a different approach.
adding a "rescheduler" at the butt of a dumb algorithm is under-efficient,
the scheduling constraints must be taken into account in the whole program.

> > > > btw, do you come to the Libre Software Meeting in Bordeaux ?
> > > > will you present some of our work ?
> > > Yes of course, I have some problem with my pop at epita, so if some
> > > discussion append on it, I can't know them. But we will meet us at the
> > > "first jeudi" ?
> > of course i'll come to Les Halles.
> > But do you want to present something ? do you have a subject in mind ?
> It depend on the time I have, but why not ?
great !

> A+
>   Cedric
WHYGEE
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*************************************************************
To unsubscribe, send an e-mail to majordomo@seul.org with
unsubscribe f-cpu       in the body. http://f-cpu.seul.org/