Double the number of vCPU per node of the local grid
Working on !393 (closed), @florian raised some concerned about the fact that our current local grid setup relies on single CPU nodes:
- with a single CPU, we don't have a chance to reproduce SMP related concurrency bugs, and that adds a whole class of bugs we'll only ever see later down the road.
- we may prefer to set something closer to the real environments, which are all using multiple CPU nodes
As for the local grid, increasing the number of vCPU from 1 (default) to 2 should not negatively impact the developers (hopefully).