Changing [this line](https://github.com/Ladybug-Memory/icebug-benchmark-pagerank/blob/3f9bcc5e74a87d94a4e525b7382fd27ff9a54a57/icebug/bench.py#L29) to use more than 1 thread triggers bugs. One of the models thought that it's caused by two OMP parallel loops not working well together. Needs further investigation.
