Re: [Starpu-devel] [Starpu-commits] [Review needed] Move $HOME/.starpu/sampling to $XDG_CACHE_HOME/starpu/sampling

[Samuel Thibault <samuel.thibault@ens-lyon.org>]

Ludovic Courtès, le Thu 15 Dec 2011 15:48:49 +0100, a écrit :
> Samuel Thibault <samuel.thibault@ens-lyon.org> skribis:
> 
> > Cyril Roelandt, le Mon 12 Dec 2011 17:03:48 +0100, a écrit :
> >> As Ludovic Courtes pointed out, the StarPU samplings should probably be
> >> stored in $XDG_CACHE_HOME/starpu/sampling rather than in
> >> $HOME/.starpu/sampling.
> >> 
> >> Some of our users are probably used to having these files in
> >> $HOME/.starpu/sampling though, so it would be nice if nothing was to 
> >> change
> >> for them.
> >> 
> >> The following patch makes sure we store our perfmodels in 
> >> $XDG_CACHE_HOME or
> >> $HOME/.cache if $HOME/.starpu/sampling does not exist :
> >
> > I'd rather have a clear simple algorithm: try all the paths in a given
> > order, and if none of them exists, create the first path in the order.
> > Otherwise it's a mess to document and care about.
> 
> I think the goal should be to deprecate ~/.starpu and move towards XDG
> compliance.  What do you think?

Why not.

> If we agree on that, then Cyril’s patch looks fine to me.  Perhaps it
> should issue a warning when something is found under ~/.starpu, and/or
> move it to the new location.

I don't think we should move anything, that'd be very unexpected from
the user.

We can probably replace the just-added STARPU_HOME with a STARPU_ROOT
which is used as container of sampling/ if it exists, and the other
paths otherwise.

Samuel