[R] Re: [bad designed hardware]

Uwe Ligges ligges at statistik.uni-dortmund.de
Sun Oct 13 20:25:59 CEST 2002

"Dr. Chris Wills" wrote:
> Dear R Gang:

Dear guy,

>         I have a Macintosh G4 powerbook, running OS 9.2.  Last week I
> ran a statistical analysis program that I wrote in R for two days
> continuously.  The program does repeated intensive computations on a
> large data set.
>         The program completed its task successfully, but during the
> process I noted that the computer seemed to be running unusually hot.
> Shortly after the program stopped, something unrepairable happened to
> the computer.  I don't know the cause of the problem yet, and won't
> find out until Monday or Tuesday, but it seems to involve the hard
> drive - Norton Disk Doctor cannot fix it, nor can I restore the
> original software to the hard drive.
>         The computer breakdown may of course be unrelated to my use
> of R, but I am concerned that running the computer so intensively may
> have caused the problem.  Has anyboody run into a similar problem
> using R on a G4 machine?  I have also been running R on a G3 I-Book,
> using the same operating system, though not the same program, and I
> have had no problems.

You ran calculations and so you used your CPU extraordinary, so it's
reasonable that it gets warmer than in other circumstances. If the
cooling system doesn't work sufficiently, that might cause damages. In
that case your hardware was not designed properly (e.g. to cool the 100%
used CPU).

Uwe Ligges
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