Fix Version/s: None
In gen2/gen3 comparisons on w30, there were some differences between the fgcmcal outputs. I have tracked a large part of this to the fgcm high density region downsampling, where stars to use as reference are randomly selected in regions of high density above a configurable threshold. This ticket is to add the functionality to specify a random seed to ensure that the same stars are selected in subsequent or concurrent runs.
Thank you so much for tracking this down! Also huge thanks for updating the gen2gen files. I left the most minor of comments on the PRs, but otherwise LGTM on green Jenkins.
Turns out the PR on fgcm master was not the right thing. I've fixed that up and now Jenkins is GREEN. https://ci.lsst.codes/blue/organizations/jenkins/stack-os-matrix/detail/stack-os-matrix/34804/pipeline
I have also updated the gen2 RC2 configuration scripts on this ticket to match what I believe was run on w_2021_30 rerun by Morgan Schmitz.
With these changes we get the same star list for gen2 and gen3.
PRs to review:
PR to approve but doesn't need code checks:
Jenkins is here: https://ci.lsst.codes/blue/organizations/jenkins/stack-os-matrix/detail/stack-os-matrix/34801/pipeline