[Discuss, dont close] Precision of distopia
functions may vary with architecture
#3915
Labels
CZI-performance
performance track of CZIEOSS4 grant
Discussion point for #3914.
Due to the use of VCL based metaprogramming and the way CPU dispatching is done in distopia, some ** very high precision** tests may return different results based on the CPU you have.
For example the
analysis/test_distances.py::TestDist::test_pairwise_dist_offset_effect
test fails on my ancient local machine but is fine on CI in #3914 with a relative difference of 10^-7 (insignificant IMO).This shouldn't be an issue as distopia is an optional dependency but I thought I would draw this to people's attention.
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