"Illegal instruction" error with python import on Ubuntu

[asprasan]

I am using a PC with:
Ubuntu 20.04
Intel(R) Xeon(R) W3565 CPU
x86_64 architecture

I installed mitsuba with pip inside a conda environment (python 3.10):

Collecting mitsuba
  Using cached mitsuba-3.2.1-cp310-cp310-manylinux2014_x86_64.manylinux_2_17_x86_64.whl (33.5 MB)
Collecting drjit==0.4.1
  Using cached drjit-0.4.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (4.5 MB)
Installing collected packages: drjit, mitsuba
Successfully installed drjit-0.4.1 mitsuba-3.2.1

When I do import mitsuba inside python I get the error Illegal Instruction and it crashes.

I found others facing similar issue with Mac M1. But could not find any solutions for an Intel CPU.
What could be the possible issue behind this error?

Note: I have compiled mitsuba2 for another project of mine on the same PC

[njroussel]

The Intel CPU wheel you're installing through pip is targeting at least ivybridge. I guess you're missing some AVX instructions.
You will need to compile the project yourself if you want to use it on that CPU.

[asprasan]

Thank you very much. Building from source worked out for me.