How long does it take to compile

[retepViolet]

It has already spent me 1.5 hours but still not done. Is this normal or not?

[tridao]

The github runner takes about 30mins to compile.
https://github.com/state-spaces/mamba/actions/runs/12206882183/job/34057291390
Make sure you have ninja installed to parallelize the build.

[g9164313]

Me, too. And I found ninja exhaust CPU resource, it just always span child process !!!!!

So, I just set MAX_JOBS variables and adjust function append_nvcc_threads in step.py.

[g9164313]

Let me guess...... multi-process(shell) compile same cuda file.......