I ran a computation yesterday at edge:data/out-sparse-matrix-opt with -n16 and never saw the CPU usage climb much above 200% CPU during the majority of CG or force constants calculation. (I didn't see diagonalization but I've witnessed that using full CPU power in the past and hopefully it still did this time as well)

This is the first computation of this sort that I've run in a while so I can't recall if this is a new problem or an old one. It just seemed.... kind of disgusting.

Anyways, not worth doing anything about it now at this critical time. Just a problem that I noticed.