On 2021-10-27 14:03, Adrian Bunk wrote:
On Wed, Oct 27, 2021 at 11:41:39AM +0200, Drew Parsons wrote:
...
Since these are runtime tests (compiled fresh for the test), I like
the idea
of keeping -march=native, since it will emulate what users will
experience
when they use xtensor in their own local projects.
...
The flakiness in build results we are seeing on mips* due to that
can be a problem in general. You just got first-hand experience on the
impossibility of debugging a problem that happens only on some buildds.
ARM builds are currently a variety of hardware, and there are literally
dozens of cpu feature extensions some whom are implemented on a given
cpu.
I'll have keep in eye on that. fenics-dolfinx for instance is failing
on armhf, though possibly not because of -march=native.
BTW: xtensor-blas/mipsel did just FTBFS due to this problem:
https://buildd.debian.org/status/fetch.php?pkg=xtensor-blas&arch=mipsel&ver=0.19.1-6&stamp=1635332411&raw=0
Good catch. I'll patch it up also.
Drew
