GitLab

This adds the physical memory region to the kernel memory manager in a second
(emulated) numa node.

Oops, address was in hex but interpreted as decimal.

I basically did the following:
`mkdir experiments/simbricks/orchestration`
`mv experiments/simbricks/* experiments/simbricks/orchestration/`

Additionally, imports and paths had to be adjusted.

fixes isort's wonky detection of first- and third-party for modules located in experiments/pyexps import modules from experiments/simbricks

Experiments can explicitly specify opt/fast (default is the latter).

Also add no checkpoint parameter

This changed a while ago in one of the refactoring steps so some of the scripts
were broken.