[ESS] emacs freezing on computationally intensive commands

[Kasper Daniel Hansen]

Hmm, I must say I use it constantly with very good results, and this was 
the approach I was adviced to take when I asked a similiar question some 
time ago on the list.

Anyway, I think it is pretty important for users to be able to edit 
files while R computes in another buffer (it would even be nice to 
continue to view help files, hint hint :) While I always use batch mode 
for long computations (1+ hour) I frequently execute commands with a 
moderate amount of computing (10-40 minutes).

Kasper

On Tue, Apr 19, 2005 at 07:18:44PM +0200, A.J. Rossini wrote:
> The problem with your approach, Kasper, is that sometimes it stops the
> whole process.
> I suspect it is something to do with detecting output, and we probably
> could "fake" it within ESS.  We'll take a look.
> 
> best,
> -tony
> 
> 
> On 4/19/05, Kasper Daniel Hansen <k.hansen at biostat.ku.dk> wrote:
> > If you press C-g Emacs will "unfreeze" so you can go on editing in
> > another buffer. Note that the R process is still occupied, so you
> > cannot use the help function while editing (you will get an
> > error/warning like "Waiting for ESS(R)"). But C-g will solve most of
> > your problems.
> > 
> > Kasper
> > 
> > On Tue, Apr 19, 2005 at 05:18:02PM +0200, Henning Redestig wrote:
> > > Hi,
> > >
> > > When I in my R-buffer call a function that takes long time to finish my
> > > Emacs freezes up until that command is finished. I thought that was
> > > natural until I realized that if the first thing that the R function
> > > does is outputting something to my R-buffer say: cat("Starting
> > > function\n") then this causes Emacs to wake up again, being usable while
> > > the R process finishes off in the background.
> > >
> > > Is there are a way to achieve the same thing except the silly approach
> > > of putting such a line in the top of all functions?
> > >
> > > I use Emacs 21.3.1, ESS 5.2.5, R-2.0.1 on Fedora
> > >
> > > Cheers for any help on this..
> > >
> > > /Henning
> > >
> > > ______________________________________________
> > > ESS-help at stat.math.ethz.ch mailing list
> > > https://stat.ethz.ch/mailman/listinfo/ess-help
> > 
> > --
> > Kasper Daniel Hansen, Research Assistant
> > Department of Biostatistics, University of Copenhagen
> > 
> > ______________________________________________
> > ESS-help at stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/ess-help
> > 
> 
> 
> -- 
> best,
> -tony
> 
> "Commit early,commit often, and commit in a repository from which we can easily
> roll-back your mistakes" (AJR, 4Jan05).
> 
> A.J. Rossini
> blindglobe at gmail.com

-- 
Kasper Daniel Hansen, Research Assistant
Department of Biostatistics, University of Copenhagen