Re: On entry to DLASDA parameter number 2 had an illegal value

[lo]

On Monday 26 July 2010 07:27:13 Jaroslav Hajek wrote:
> On Sun, Jul 25, 2010 at 11:14 PM, lo <address@hidden> wrote:
> > hello,
> >
> > on running the following under octave 3.3.51 on a Linux Suse 11.2
> >
> > A = [ 0.50374   0.61402   0.43301; 0.60290   0.78609   0.43301 ]
> > B = [ -1.0531; -1.0531 ]
> > X = A\B; % solve A X = B
> >
> >
> > I get:
> >
> >  ** On entry to DLASDA parameter number  2 had an illegal value
> > A =
> >
> >   0.50374   0.61402   0.43301
> >   0.60290   0.78609   0.43301
> >
> > B =
> >
> >  -1.0531
> >  -1.0531
> >
> > error: test: exception encountered in Fortran subroutine dgelsd_
> >
> >
> > thanks for any help,
> 
> Did you link Octave with ARPACK? This kind of error occurred to me
> several times when I built ARPACK with the default configuration so
> that it mixed with LAPACK routines. The best approach is to ignore the
> comment in ARPACK about possible problems with LAPACK 3 (none were
> observed) and build it against your normal shared LAPACK library.
> 
> hth
> 

you were right;
I re-built ARPACK, this time against my own LAPACK shared library,
and it works fine now !
thanks for your support;

regards,
Laurent