8000 numpy.linalg.LinAlgError: Eigenvalues did not converge on ARM64 builds · Issue #19411 · numpy/numpy · GitHub
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numpy.linalg.LinAlgError: Eigenvalues did not converge on ARM64 builds #19411
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@ogrisel

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@ogrisel

TestPolynomial.test_poly and other tests recently started to fail on the Travis ARM64 nightly builds:

https://travis-ci.com/github/numpy/numpy/jobs/521809468

The last successful ARM64 test run is 4 days old:

https://travis-ci.com/github/numpy/numpy/builds/231467572

Note that we observed similar failures on Circle CI and Travis CI ARM64 builds for the scikit-learn project using only stable releases for numpy and scipy so this probably not caused by a change in numpy itself.

We observed a failing job and a successful run that both used:

  • numpy-1.21.0-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
  • scipy-1.7.0-cp39-cp39-manylinux_2_17_aarch64.manylinux2014_aarch64.whl

Link to those (weekly running) scikit-learn jobs:

I am not sure what caused this change since openblas is embedded in those wheels.

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