Not sure when you last looked at Singularity's code base, but it was completely re-written this year into Go, so some of the issues you saw may have been solved

Not sure when you last looked at Singularity's code base, but it was completely re-written this year into Go, so some of the issues you saw may have been solved. Not sure, just letting you know if you haven't been following its development. > It was a mistake to get it into Fedora, and HPC people should be a bit more circumspect. I never installed it from EPEL, as building from source was relatively easy in 2.x (trivially easy in 3.x) and allowed buildtime configurations specific to a cluster. If you pay for support you get custom repos, but that's up to the cluster maintainers to decide.