id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
33212 Karatsuba multiplication of matrices: failed test GMS "This is for SageMath version 9.5.rc3 built on two M1 Macs, one with macOS 11.6.2 (Big Sur) and the other with macOS 12.1 (Monterey).
One test in
{{{
src/sage/matrix/matrix_gf2e_dense.pyx
}}}
seems to fail consistently, namely
{{{
sage: K. = GF(2^n)
sage: A = random_matrix(K, 50, 50)
sage: B = random_matrix(K, 50, 50)
sage: A._multiply_karatsuba(B) == A._multiply_classical(B)
}}}
as soon as `n > 2`.
In fact, `A` and `B` appear to be completely different.
I do not know how to deal with this, but I am available to test.
" defect new critical sage-9.8 linear algebra Martin Albrecht N/A