Illegal instruction (core dumped) on Ubuntu about h3ronpy

[nmandery]

Hi Johanna,

knowing the hardware you are probably using to run h3ronpy, the reason is that CPU does not support the quite common AVX and FMA instruction sets. After a few other projects like polars started to distribute wheel compiled with these instruction sets, I decided to do the same as using these instructions gave a nice performance boost. The instruction sets are fairly old at this point and supported on most machines. Runtime-detection of CPU features - like numpy does - is sadly out of scope.

In your case you can not use the wheels from pypi as they are build using these flags (see

h3ronpy/.github/workflows/ci.yml

Line 40 in 7cc5877

RUSTFLAGS: "-C target-feature=+fxsr,+sse,+sse2,+sse3,+ssse3,+sse4.1,+sse4.2,+popcnt,+avx,+fma"

). You can either use another machine (geofarm is fine for example) or compile h3ronpy yourself.

I suppose you are using a container - you could use a multistage build process and compile h3ronpy in its own stage and copy the wheel to your install-stage. I can provide you a snippet for this stage in that case.

Sorry for the inconvenience ;)

Best,
Nico

[joanneroll]

Hi Nico,

thanks for your reply and explanation - and sorry for the late reply!

Edit: Yes, the reason was the infrastructure since it ran on the geofarm. So for the moment, I don't need to complie h3ronpy myself.

Thanks for your help and all the best,
Johanna