[SciPy-User] umfpack runs out of memory

[Xavier Barthelemy]

sometimes an unix or linux is configured with a max limit of resources by user.
the standard case is 4GB ram per process
try "ulimit" and check what is the answer (if installed).
if this is the case a "ulimit unlimited" should answer the problem

Xavier

2012/2/29 Torsten Bronger <bronger at physik.rwth-aachen.de>:
> Hallöchen!
>
> I currently deal with large matrices.  I use the SciPy package of
> Ubuntu 10.04.  The umfpack package is called libumfpack5.4.0.
>
> The Python process uses approx. 6 GB of Memory and aborts.  The
> traceback is
>
> Traceback (most recent call last):
>  ...
>  File "/usr/lib/python2.6/dist-packages/scipy/sparse/linalg/dsolve/linsolve.py", line 88, in spsolve
>    autoTranspose = True )
>  File "/usr/lib/python2.6/dist-packages/scipy/sparse/linalg/dsolve/umfpack/umfpack.py", line 582, in linsolve
>    self.numeric( mtx )
>  File "/usr/lib/python2.6/dist-packages/scipy/sparse/linalg/dsolve/umfpack/umfpack.py", line 431, in numeric
>    umfStatus[status])
> RuntimeError: <function umfpack_di_numeric at 0x22fbe60> failed with UMFPACK_ERROR_out_of_memory
>
> I suspect a 4 GB limit somewhere.  Can I do something about it?
>
> Tschö,
> Torsten.
>
> --
> Torsten Bronger    Jabber ID: torsten.bronger at jabber.rwth-aachen.de
>                                  or http://bronger-jmp.appspot.com
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