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Re: high memory usage by spdet / memory leak?

From: Dmitri A. Sergatskov
Subject: Re: high memory usage by spdet / memory leak?
Date: Tue, 10 May 2005 17:54:49 -0600
User-agent: Mozilla Thunderbird (X11/20050322)

David Bateman wrote:

Try the following patch

2005-04-29  David Bateman  <address@hidden>

   * dSparse.cc (determinant): Free numeric factorization after
   sucessful calculation.
   * CSparse.cc (determinant): ditto.



I tried today's octave cvs snapshot and it does not have memory leak
in spdet. The memory usage during spdet() calculation still high --
something about 300MB. This is for array produced by
octave:1> n=6000; a=speye(n,n)+0.01*sprandn(n,n,0.001);
octave:2> whos a

*** local user variables:

  Prot Name        Size                     Bytes  Class
  ==== ====        ====                     =====  =====
   rwd a        6000x6000                  527572  sparse matrix

Total is 41964 elements using 527572 bytes



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