[Rd] memory trouble
Prof Brian Ripley
Fri, 5 Jan 2001 11:06:47 +0000 (GMT)
On Thu, 4 Jan 2001, Martin Maechler wrote:
> In spite of Brian's good points,
> I believe we should help the users more.
> R-1.1.1 --vanilla had
> >> Error: heap memory (6144 Kb) exhausted [needed 78125 Kb more]
> >> See "help(Memory)" on how to increase the heap size.
> which is much more helpful
> than the
> >> Error: cannot allocate vector of size 39062 Kb
> that R-1.2.0 reports (much much more rarely though,
> I couldn't reproduce it in a few tries !)
What I have done is to add a *warning* if the memory allocation is hit.
The warning is something like
Reached total allocation of 191.36Mb: see help(memory.size)
I can't safely raise an error, and there are literally hundreds of
places it could make an error, both in R and in a package.
You may or may not see the warning, depending how bad the error is.
Brian D. Ripley, email@example.com
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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