Add machines muller-cpu/muller-gpu as NERSC internal testing machines similar to pm-cpu/pm-gpu#6154

Merged

ndkeen merged 2 commits intomasterfrom ndk/machinefiles/add-muller-cpu-muller-gpu

Feb 6, 2024

+504-49

Commits on Jan 12, 2024

Adding muller-cpu/muller-gpu and removing muller
ndkeen
committed

Commits on Jan 18, 2024

more changes for muller-cpu and muller-gpu machine
ndkeen
committed