Kate To do

Check that null space mass evolution is working fine if the null space is computed at the physical point. Does it still work for the strange quark?

Enforce spin space to be tensored with color space on coarse grid

Laplace eigenspace investigation

Does full field MG with deflation work? Simone thinks coarse grid e-solver might be borked

Thread block cluster for controlling occupancy?

Andre says 24^4 can't be coarsened by 3^4 aggregate.

Add option to switch off coarse grid deflation on an already set up solver

Atomic header update

Nan / inf compiler flag (nvc++ and maybe clang)