Re: Some questions (LAPACK source, QZ, Debian)

[email protected] writes:

>> 1. I have just installed CVS matlisp on my Debian system 
>> (everything worked
>> fine).  What I do not understand is the following: although I have
>> configured it to use the ATLAS libraries, the LAPACK source is 
>> compiled.Why is this necessary?
>
> IIRC, Atlas is a fast implementation of BLAS only.  It does not
> contain the LAPACK routines.

Oh, I got that slightly wrong, then.  They write on their homepage:

  At present, it provides C and Fortran77 interfaces to a portably
  efficient BLAS implementation, as well as a few routines from LAPACK.

and I forgot the "few" since I looked last time.

Nevertheless, it might be nice (and probably faster, if those routines are
optimized) to use already installed libraries (e.g. from Debian packages).
Are there important differences for the Matlisp version of LAPACK?  I
remember having read about small changes?

Yours, Nicolas.


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