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Sphinx parallel build (#38785)

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Summary:
See https://www.sphinx-doc.org/en/master/man/sphinx-build.html#cmdoption-sphinx-build-j

> Distribute the build over N processes in parallel, to make building on multiprocessor machines more effective. Note that not all parts and not all builders of Sphinx can be parallelized. If auto argument is given, Sphinx uses the number of CPUs as N.

- Timing results
  - Python doc build on a 40-core machine: 9:34 down to 1:29
  - pytorch_cpp_doc_push: ~1h 10m down to 47m
  - pytorch_python_doc_push: 34m down to 32m
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38785

Differential Revision: D21691991

Pulled By: zou3519

fbshipit-source-id: cfc5e8cd13414640f82edfd2ad1ce4d9c7afce12
This commit is contained in:
Shawn Zhong
2020-05-21 13:01:10 -07:00
committed by Facebook GitHub Bot
parent a40049fd2a
commit 481838f21b
3 changed files with 3 additions and 2 deletions
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2
docs/Makefile
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@ -2,7 +2,7 @@
# #
# You can set these variables from the command line. # You can set these variables from the command line.
SPHINXOPTS = SPHINXOPTS = -j auto
SPHINXBUILD = sphinx-build SPHINXBUILD = sphinx-build
SPHINXPROJ = PyTorch SPHINXPROJ = PyTorch
SOURCEDIR = source SOURCEDIR = source

2
docs/cpp/Makefile
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@ -1,7 +1,7 @@
# Minimal makefile for Sphinx documentation # Minimal makefile for Sphinx documentation
# You can set these variables from the command line. # You can set these variables from the command line.
SPHINXOPTS = SPHINXOPTS = -j auto
SPHINXBUILD = sphinx-build SPHINXBUILD = sphinx-build
SPHINXPROJ = PyTorch SPHINXPROJ = PyTorch
SOURCEDIR = source SOURCEDIR = source

1
docs/make.bat
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@ -10,6 +10,7 @@ if "%SPHINXBUILD%" == "" (
set SOURCEDIR=source set SOURCEDIR=source
set BUILDDIR=build set BUILDDIR=build
set SPHINXPROJ=PyTorch set SPHINXPROJ=PyTorch
set SPHINXOPTS=-j auto
if "%1" == "" goto help if "%1" == "" goto help