Re: a\b operation slow

[Hartmut Behrens]

Thank you, replacing lapack-3.0.25 with lapack-3.0.26 solved the problem !

 

hb
 

On 2/26/06, John W. Eaton <address@hidden> wrote:

On 26-Feb-2006, Hartmut Behrens wrote:

| Sorry i meant a\b'.

On modern hardware, this operation should take just a fraction of a
second, even for matrices considerably larger than the one you have.

| I am using Octave 2.1.72 on Fedora Core 3, installed
| from source.
| Could it be that the FPU is disabled by the kernel ? (i am not very familiar
| with kernel operation) - i will recompile it to see if there is an option to
| enable/disable FPU support.

My guess is you have a broken Lapack library installed on your
system.  See for example

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138447

jwe