[Octave-bug-tracker] [bug #54179] sparse/eigs.m test failure on macOS

[Andrew Janke]

URL:
  <http://savannah.gnu.org/bugs/?54179>

                 Summary: sparse/eigs.m test failure on macOS
                 Project: GNU Octave
            Submitted by: apjanke
            Submitted on: Sun 24 Jun 2018 09:17:31 PM UTC
                Category: Test Suite
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.0
        Operating System: Mac OS

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Details:

In Octave 4.4.0 on macOS 10.13.5, the sparse/eigs.m test is failing for me.
This is with arpack 3.6.1 installed. Build logs attached.


>> test eigs
***** testif HAVE_ARPACK
 A = toeplitz ([0, 1, zeros(1, 8)], [0, -1, zeros(1, 8)]);
 A = kron (A, eye (10)) + kron (eye (10), A);
 opts.v0 = (1:100)';
 opts.maxit = 5;
 warning ("off", "Octave:eigs:UnconvergedEigenvalues", "local");
 d = eigs (A, 4, "lm", opts);
 assert (d(3:4), [NaN+1i*NaN; NaN+1i*NaN]);
!!!!! test failed
ASSERT errors for:  assert (d (3:4),[NaN + 1i * NaN; NaN + 1i * NaN])

  Location  |  Observed  |  Expected  |  Reason
    (1)      -3.4694e-18+3.6015i   NaN+NaNi     'NaN' mismatch
    (2)      -3.4694e-18-3.6015i   NaN+NaNi     'NaN' mismatch


Looks related, but not identical, to:

* https://savannah.gnu.org/bugs/index.php?53700
* https://savannah.gnu.org/bugs/index.php?53433



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File Attachments:


-------------------------------------------------------
Date: Sun 24 Jun 2018 09:17:31 PM UTC  Name: octave build logs -
e7420cac8e489b4c38f287c587624cf3-a945c8e5c08b20b69682a6eaf08c5557f752991f.zip 
Size: 270KiB   By: apjanke

<http://savannah.gnu.org/bugs/download.php?file_id=44425>

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