various fixes #2546

Job	Run time
build-python-wheels (ubuntu-20.04, auto64)	26m 46s
build-and-push-docker-images	22m 33s
build-and-test-cpp-x86_64 (ubuntu-20.04, mkl)	5m 40s
build-and-test-cpp-aarch64 (openblas)	4m 6s
build-and-test-cpp-x86_64 (ubuntu-20.04, dnnl)	5m 11s
build-python-wheels (macos-11, auto64)	36m 35s
build-and-test-cpp-x86_64 (macos-11, mkl)	9m 47s
build-python-wheels (windows-2019, auto64)	41m 28s
check-python-style	7s
build-and-test-cpp-x86_64 (macos-11, dnnl)	9m 7s
build-python-wheels (ubuntu-20.04, aarch64)	1h 11m 48s
build-python-wheels (macos-11, arm64)	13m 2s
build-and-deploy-docs	29s
test-python-wheels (ubuntu-20.04)	8m 52s
test-python-wheels (macos-11)	5m 10s
test-python-wheels (windows-2019)	5m 14s
publish-python-wheels-on-pypi	0s
	4h 25m 55s

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