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Re: svds check fail in 3.8.0


From: Markus Appel
Subject: Re: svds check fail in 3.8.0
Date: Thu, 23 Jan 2014 22:38:33 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0

On 01/23/2014 09:47 PM, Marco Atzeri wrote:


On 23/01/2014 21:09, Markus Appel wrote:
Hi,

I just built 3.8.0 on Ubuntu 12.04 64bit (all standard config options),
and one of the svds checks fails:




   ***** testif HAVE_ARPACK, HAVE_UMFPACK
  [u2,s2,v2,flag] = svds (A,k,0,opts);
  s2 = diag (s2);
  assert (flag, !1);
  tol = 10 * eps() * norm(s2, 1);
  assert (s2, s(k:-1:1), tol);

warning: returning fewer singular values than requested
warning: try increasing the value of sigma
!!!!! test failed
ASSERT errors for:  assert (,)

   Location  |  Observed  |  Expected  |  Reason
      .          O(6x1)       E(7x1)      Dimensions don't match


look

https://mailman.cae.wisc.edu/pipermail/octave-maintainers/2014-January/038645.html

https://mailman.cae.wisc.edu/pipermail/octave-maintainers/2011-August/024469.html


and try with different random seed instead of 42 on svds.m

%! randn ("state", 42);      % Initialize to make normest function
reproducible
%! rand ("state", 42);


 > Markus


Marco


OK, seems I did not look in the right spot or not thoroughly enough.
Thanks Marco!


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