Add some unit tests for new files from #347 and speed up CI by setting OMP_NUM_THREADS=1. From experience elsewhere I think pyscf (or openblas) is considerably slower when this is picked up from the environment default (which is use all threads). Brings the CI times down from 13m ~ 6m which is what it was roughly before #347
Add some unit tests for new files from #347 and speed up CI by setting OMP_NUM_THREADS=1. From experience elsewhere I think pyscf (or openblas) is considerably slower when this is picked up from the environment default (which is use all threads). Brings the CI times down from 13m ~ 6m which is what it was roughly before #347