With step restriction #1492

Job	Run time
macos-latest: clang++ Release Threads	6m 39s
macos-latest: clang++ Release OneTBB	3m 52s
macos-latest: clang++ Release PaRSEC	4m 9s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	1m 35s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	2m 9s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	2m 43s
macos-latest: clang++ Debug Threads	2m 40s
macos-latest: clang++ Debug OneTBB	2m 31s
macos-latest: clang++ Debug PaRSEC	3m 13s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	1m 30s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	1m 38s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	2m 53s
	35m 32s

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