How long does it take to merge three 7B models?

[tanganke]

How long does it take to merge three 7B models for different methods (PS, DFS, PS+DFS)?

• Shisa Gamma 7B v1
• WizardMath 7B v1.1
• Abel 7B 002

And what are the system requirements to do the merge? Do I need to load 7B models simultaneously and merge them on GPUs or I can merge them lazily on disk like mergekit and load them to GPUs for evolutionary?