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[Octave-bug-tracker] [bug #54179] sparse/eigs.m test failure
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From: |
Dmitri A. Sergatskov |
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Subject: |
[Octave-bug-tracker] [bug #54179] sparse/eigs.m test failure |
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Date: |
Tue, 3 Jul 2018 07:21:36 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0 |
Follow-up Comment #10, bug #54179 (project octave):
I have two tests failing:
octave:12> [n, nmax]=test("eigs", "verbose")
<...>
***** 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) -2.4903e-71+3.6015i NaN+NaNi 'NaN' mismatch
(2) -2.4903e-71-3.6015i NaN+NaNi 'NaN' mismatch
<...>
***** testif HAVE_ARPACK
A = toeplitz ([0, 1, zeros(1, 8)], [0, -1, zeros(1, 8)]);
A = kron (A, eye (10)) + kron (eye (10), A);
Afun = @(x) A * x;
opts.v0 = (1:100)';
opts.maxit = 5;
warning ("off", "Octave:eigs:UnconvergedEigenvalues", "local");
d = eigs (Afun, 100, 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) -2.4903e-71+3.6015i NaN+NaNi 'NaN' mismatch
(2) -2.4903e-71-3.6015i NaN+NaNi 'NaN' mismatch
<...>
n = 180
nmax = 182
and yes, changing opts.maxit to 4 in both cases allow them to pass.
Dmitri.
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