Saved optsums on x86-64 vs Apple-M1

[palday]

The initial values for the large scale observed data seem to differ on x86-64 and Apple M1. When I rendered things on my x86-64 desktop, I received an error about the initial values, so I updated the optsum. When I then tried to use that optsum on my Apple M1 laptop, I received an error about the initial values. I'm re-fitting everything on both machines (as the other demands on my computers allow) and will post a comparison when everything is done.