checkpoint: He lrcc2 works #1845

Job	Run time
macos-latest: clang++ Release Threads	18m 13s
macos-latest: clang++ Release OneTBB	3m 29s
macos-latest: clang++ Release PaRSEC	3m 2s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	30m 8s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	3m 45s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	2m 52s
macos-latest: clang++ Debug Threads	27m 16s
macos-latest: clang++ Debug OneTBB	3m 24s
macos-latest: clang++ Debug PaRSEC	3m 26s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	45m 36s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	3m 16s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	3m 5s
	2h 27m 32s

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