gs cc2 works with macrotasks and the water dimer, lrcc2 to go #1970

Job	Run time
macos-latest: clang++ Release Threads	14m 5s
macos-latest: clang++ Release OneTBB	2m 1s
macos-latest: clang++ Release PaRSEC	2m 15s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	36m 51s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	2m 55s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	3m 15s
macos-latest: clang++ Debug Threads	19m 46s
macos-latest: clang++ Debug OneTBB	1m 35s
macos-latest: clang++ Debug PaRSEC	2m 25s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	48m 57s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	2m 6s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	2m 12s
	2h 18m 23s

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