[Octave-bug-tracker] [bug #53390] lu factorization of large sparse matrices often fails

[Rik]

Update of bug #53390 (project octave):

                  Status:                    None => Confirmed              

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Follow-up Comment #1:

Confirmed.  I used the following test script (attached).


for i = 1:100
  S = sprand  (1000, 1000, 1 / 1000);
  [L,U] = lu (S);
  fprintf (stderr, "%d\n", i);
endfor


Octave rarely gets to more than 3 iterations before lu fails.


(file #43610)
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Additional Item Attachment:

File name: tst_lu.m                       Size:0 KB


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