Input files and MPI

[mihelog]

Good evening! I have two questions if someone has some time:

1). The "tracc_throughput_mt" benchmark has an option to pass a detector .csv file and a volume finder. I couldn't find those downloaded by the get data shell script. The benchmark runs but produces warnings:
WARNING: No material in detector
WARNING: No entries in volume finder
I just want to make sure that not providing these files doesn't make the runs invalid.

2). If I understand well, traccc uses TBB for threading and there is no multi-node support with MPI or an alternative. Are there any beta versions that do use MPI or another way for multi-node runs?