[wenet/bin/train.py] add barrier before destory process group (#2590) #4241

	name: "Check and Publish Docs"
	on:
	workflow_dispatch:
	pull_request:
	paths:
	- 'docs/**'
	- 'wenet/**.py'
	push:
	branches:
	- main
	paths:
	- 'docs/**'
	- 'wenet/**.py'

	jobs:
	docs:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	torch: ["2.2.2"]
	python-version: ["3.10"]
	steps:
	- uses: actions/checkout@v1

	- name: Setup Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Build doc
	shell: bash
	run: \|
	cd docs
	python3 -m pip install -r ./requirements.txt
	make api
	make html

	# add .nojekyll to notice Pages use the _* dirs
	- name: copy the generated site
	if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
	run: \|
	mkdir public
	touch public/.nojekyll
	cp -r docs/_build/html/* public/

	# push to gh-pages branch
	- name: github pages deploy
	if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
	uses: peaceiris/actions-gh-pages@v2.3.1
	env:
	PERSONAL_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	PUBLISH_BRANCH: gh-pages
	PUBLISH_DIR: public

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