fixed failing tests #1894

Job	Run time
macos-latest: clang++ Release Threads	11m 11s
macos-latest: clang++ Release OneTBB	2m 52s
macos-latest: clang++ Release PaRSEC	4m 14s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	23m 44s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	3m 25s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	2m 28s
macos-latest: clang++ Debug Threads	27m 20s
macos-latest: clang++ Debug OneTBB	3m 14s
macos-latest: clang++ Debug PaRSEC	3m 2s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	18m 0s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	2m 35s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	2m 38s
	1h 44m 43s

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