[Octave-bug-tracker] [bug #64446] Sparse QR segfaults with SuiteSparse 7 on 32-bit architectures

[Sébastien Villemot]

Follow-up Comment #10, bug #64446 (project octave):

[(Erreur - Introuvable)]

[comment #9 commentaire #9 :]
> [comment #8 comment #8:]
> > You mean there may be conversions between integer types and pointer types
within SuiteSparse? That would indeed be a rather serious design issue.
> 
> Yeah. I tried to point that out multiple times since SuiteSparse 6 was
released. But upstream didn't react on that point ever since...

Indeed at this point I don’t really understand why the 64-bit SPQR doesn’t
work on 32-bit architectures. The Octave code seems to do the right thing
(i.e. convert integers to SuiteSparse_long, which is now int64_t). So the
problem seems internal to SPQR/CHOLMOD, and that would indeed be consistent
with an integer-to-pointer conversion issue. Adding a 32-bit SPQR will not
solve that (though of course it will provide a solution for 32-bit Octave).


    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/bugs/?64446>

_______________________________________________
Message posté via Savannah
https://savannah.gnu.org/