Option to make geogram to produce deterministic results

[tksuoran]

Could we have a way to run geogram in deterministic mode? I found GEO::random_shuffle() is causing parts of geogram to be non-deterministic. I think that should be fairly easy to patch. I wonder if there are any other parts in geogram that would be potentially non-deterministic?

Thanks!

[BrunoLevy]

Yes, I can add a flag to deactivate the random permutation.
Another source of undeterminism can be multithreading, that you can deactivate with the sys:multithread=false command argument (which I am often using when debugging).
(I think that I'll deactivate the random permutation when multithreading is deactivated, because it is meant to balance workload between threads)