On Tuesday, September 20, 2016 at 5:39:47 AM UTC+2, Steven Trogdon wrote:
>
> On Gentoo 1 failure:
>
> sage -t --long src/sage/matrix/matrix_double_dense.pyx
> **********************************************************************
> File "src/sage/matrix/matrix_double_dense.pyx", line 668, in 
> sage.matrix.matrix_double_dense.Matrix_double_dense.condition
> Failed example:
>     A.condition()  # tol 1e-4
> Expected:
>     16332197709146.014
> Got:
>     16333848415071.576
> Tolerance exceeded:
>     16332197709146.014 vs 16333848415071.576, tolerance 1e-04 > 1e-04
> **********************************************************************
>
> Now usually the tol spec if fairly close. But this way off.
>
Maybe due to the switch from ATLAS to OpenBLAS as default BLAS.
But I'm not sure upgrading makes the switch happens as configure has maybe 
kept the choice of ATLAS cached.

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