[Rd] make check failure: lapack.Rout.fail

[Prof Brian Ripley]

On Wed, 14 Feb 2007, Armstrong, Whit wrote:

> I see that the comment in the lapack test indicates that developers are
> aware of this issue.
>
> Are there any known fixes to this problem?  compiler flags, etc.
>
> an upgrade to a more recent gcc is not an option for me.

Well, R-devel has an updated LAPACK so you could try that.
But the real problem is the 2003 compiler, from well before x86_64 Linux 
was stable and the known fix is to use a less ancient g77.

>
> this occurred while doing make check-all on R-patched_2007-02-11.tar.gz
>
> with the following:
>
> RHEL3 on x86_64
> gcc (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-47)
> GNU Fortran (GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-47)) 3.2.3 20030502
> (Red Hat Linux 3.2.3-47)
>
> code snip:
>
>> ## failed for some 64bit-Lapack-gcc combinations:
>> sm <- cbind(1, 3:1, 1:3)
>> eigenok(sm, eigen(sm))
> Error: abs(A %*% V - V %*% diag(lam)) < Eps is not all TRUE
> Execution halted
>
>
> Thanks in advance,
> Whit
>
>
>
>
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
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 272866 (PA)
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