Le 06/02/2024 à 14:46, Javier Jimenez Shaw a écrit :
Could you set up your VMs to include those SSE instructions?
I remember older VirtualBox versions indeed had issues to propage AVX to
guest, but I believed that has been fixed now. I'm not aware of issues
with SSEx not being propagate.
I think that keeping VMs that "old" configured is a source of problems
using pre-compiled binaries.
The same way GDAL updates dependencies of compilers and other
libraries to something more modern (but not too modern), those SSE
instructions should be updated.
@Even knowing now that the "old" hardware is "virtually old", should
we remove AVX2 compatibility from ubuntu-full-latest? I do not know
how much is the performance impact.
Well, GDAL itself is built with default compiler flags, so only SSE2 on
x86_64 (at least currently, but there seems to be a move by some distros
to switch to SSE4.2 as the baseline) (some parts of GDAL can use higher
SSE or AVX instruction sets, but they only do so by checking first
runtime CPU capabilities)
The tiledb issue was unfortunate in that its default config enables AVX2
and you have to explicitly disable it. On the ubuntu-full image, we also
use the Apache .deb for libarrow, and I believe they use SSE4.2.
Even
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