support tensor parallel #2665

Job	Run time
build-and-test-cpp-aarch64 (openblas)	4m 10s
build-and-test-cpp-x86_64 (ubuntu-20.04, mkl)	5m 33s
build-and-test-cpp-x86_64 (ubuntu-20.04, dnnl)	5m 23s
build-and-push-docker-images	27m 32s
build-and-test-cpp-x86_64 (macos-11, mkl)	12m 6s
build-python-wheels (ubuntu-20.04, auto64)	32m 25s
check-python-style	8s
build-and-test-cpp-x86_64 (macos-11, dnnl)	10m 18s
build-python-wheels (macos-11, auto64)	40m 0s
build-python-wheels (windows-2019, auto64)	52m 3s
build-python-wheels (ubuntu-20.04, aarch64)	1h 14m 8s
build-python-wheels (macos-11, arm64)	12m 43s
build-and-deploy-docs	35s
test-python-wheels (ubuntu-20.04)	9m 25s
test-python-wheels (macos-11)	5m 49s
test-python-wheels (windows-2019)	7m 11s
publish-python-wheels-on-pypi	0s
	4h 59m 29s

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