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<li class="toctree-l1"><a class="reference internal" href="build_ci_governance.html">PyTorch Governance | Build + CI</a></li>
<li class="toctree-l1"><a class="reference internal" href="contribution_guide.html">PyTorch Contribution Guide</a></li>
<li class="toctree-l1"><a class="reference internal" href="design.html">PyTorch Design Philosophy</a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="#">PyTorch Governance | Mechanics</a></li>
<li class="toctree-l1"><a class="reference internal" href="persons_of_interest.html">PyTorch Governance | Maintainers</a></li>
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<p class="caption" role="heading"><span class="caption-text">Developer Notes</span></p>
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<li class="toctree-l1"><a class="reference internal" href="../notes/amp_examples.html">CUDA Automatic Mixed Precision examples</a></li>
<li class="toctree-l1"><a class="reference internal" href="../notes/autograd.html">Autograd mechanics</a></li>
<li class="toctree-l1"><a class="reference internal" href="../notes/broadcasting.html">Broadcasting semantics</a></li>
<li class="toctree-l1"><a class="reference internal" href="../notes/cpu_threading_torchscript_inference.html">CPU threading and TorchScript inference</a></li>
<li class="toctree-l1"><a class="reference internal" href="../notes/cuda.html">CUDA semantics</a></li>
<li class="toctree-l1"><a class="reference internal" href="../notes/ddp.html">Distributed Data Parallel</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../notes/extending.func.html">Extending torch.func with autograd.Function</a></li>
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<div class="section" id="pytorch-governance-mechanics">
<h1>PyTorch Governance | Mechanics<a class="headerlink" href="#pytorch-governance-mechanics" title="Permalink to this heading">¶</a></h1>
<div class="section" id="summary">
<h2>Summary<a class="headerlink" href="#summary" title="Permalink to this heading">¶</a></h2>
<p>PyTorch adopts a technical governance structure that is hierarchical.</p>
<ul class="simple">
<li><p>A community of <strong>contributors</strong> who file issues, make pull requests,
and contribute to the project.</p></li>
<li><p>A small set of <strong>module maintainers</strong> drive each module of the PyTorch
project.</p></li>
<li><p>They are overseen by <strong>core maintainers</strong>, who drive the
overall project direction.</p></li>
<li><p>The core maintainers have a <strong>lead core maintainer</strong>
who is the catch-all decision maker.</p></li>
</ul>
<p>All maintainers are expected to have a strong bias towards
PyTorch’s design philosophy.</p>
<p>Beyond the maintainers, the community is encouraged to contribute,
file issues, make proposals, review pull requests and be present
in the community. Given contributions and willingness to invest,
anyone can be accepted as a maintainer and provided write access
or ownership of parts of the codebase.</p>
<p>Technical governance is strictly separated from business governance.
Separating technical from business governance ensures that there is
no way for any person or company to “buy their way into” the
technical guidance of the project. Additionally, membership in
the technical governance process is for <strong>individuals</strong>, not companies.
That is, there are no seats reserved for specific companies, and
membership is associated with the person rather than the company
employing that person.</p>
</div>
<div class="section" id="module-maintainers">
<h2>Module Maintainers<a class="headerlink" href="#module-maintainers" title="Permalink to this heading">¶</a></h2>
<p>Modules are defined as GitHub repositories within the PyTorch org,
or as directories within the core repository
<a class="reference external" href="https://github.com/pytorch/pytorch">pytorch/pytorch</a>.
Each module will have its own maintainer group. Maintainer
groups are responsible for reviewing and approving commits,
improving design, and changing the scope of the module.
Each maintainer group may adopt its own rules and procedures
for making decisions (majority vote being default). Module
maintainers have the right to dispute decisions made by other
module maintainers – especially if it affects them. When
disputes are made, the module maintainer group should
provide a reasonable and public explanation of the dispute,
the relevant arguments, and the resolution. In the exceptional
cases where module maintainers cannot come to a conclusion
themselves, they will escalate to core maintainers for review.
The escalations are resolved by the core maintainers in
accordance with their rules and procedures.</p>
<p>Each maintainer group should publish publicly available
communication for their module (a vision, rough roadmap,
design docs, any disputes and dispute resolutions) so that
contributors and other interested parties understand the
future direction of the project and can participate in discussion.</p>
<p>Responsibilities of the maintainer includes:</p>
<ul class="simple">
<li><p>Triaging high priority issues of the module</p></li>
<li><p>Triaging and reviewing and landing high priority pull requests of the module</p></li>
<li><p>Supporting public documentation related to the module</p></li>
<li><p>Running public developer meetings</p></li>
</ul>
</div>
<div class="section" id="core-maintainers">
<h2>Core Maintainers<a class="headerlink" href="#core-maintainers" title="Permalink to this heading">¶</a></h2>
<p>The core maintainers are expected to have a deep understanding
of the PyTorch code base and design philosophies. Their responsibilities
include:</p>
<ul class="simple">
<li><p>Articulating a cohesive long-term vision for the project</p></li>
<li><p>Negotiating and resolving contentious issues in ways
acceptable to all parties involved</p></li>
<li><p>Receiving broad requests for changes from stakeholders of
PyTorch and evaluating / accepting them (small module-level
requests are handled by module maintainers)</p></li>
</ul>
<p>The core maintainers as a group have the power to veto any
decision made at a Module maintainer level. The core
maintainers have power to resolve disputes as they see fit.
The core maintainers should publicly articulate their
decision-making, and give a clear reasoning for their
decisions, vetoes and dispute resolution.</p>
<p>The core maintainers are admins of the PyTorch GitHub Org
and are listed in <a class="reference external" href="https://pytorch.org/docs/stable/community/persons_of_interest.html">Maintainers</a>.</p>
</div>
<div class="section" id="lead-core-maintainer-bdfl">
<h2>Lead Core Maintainer (BDFL)<a class="headerlink" href="#lead-core-maintainer-bdfl" title="Permalink to this heading">¶</a></h2>
<p>There may be decisions in which the core maintainers cannot
come to a consensus. To make such difficult decisions, the
core maintainers have an assigned and publicly declared Lead
Core Maintainer amongst them, also commonly known in open-source
governance models as a BDFL.</p>
<p>The Lead Core Maintainer should publicly articulate their
decision-making, and give a clear reasoning for their
decisions. The Lead Core Maintainer is also responsible for
confirming or removing core maintainers.</p>
</div>
<div class="section" id="nominating-confirming-and-removing-maintainers">
<h2>Nominating, Confirming and Removing Maintainers<a class="headerlink" href="#nominating-confirming-and-removing-maintainers" title="Permalink to this heading">¶</a></h2>
<div class="section" id="the-principles">
<h3>The Principles<a class="headerlink" href="#the-principles" title="Permalink to this heading">¶</a></h3>
<ul class="simple">
<li><p>Membership in module maintainer groups is given to <strong>individuals</strong>
on <strong>merit basis</strong> after they demonstrated strong expertise of the
component through contributions, reviews and discussions and are
aligned with how the component fits in overall PyTorch direction.</p></li>
<li><p>For membership in the maintainer group the individual has to
demonstrate strong and continued alignment with the overall
PyTorch principles.</p></li>
<li><p>No term limits for module maintainers or core maintainers</p></li>
<li><p>Light criteria of moving module maintenance to ‘emeritus’
status if they don’t actively participate over long periods
of time. Each module maintainer group may define the inactive
period that’s appropriate for that module.</p></li>
<li><p>The membership is for an individual, not a company.</p></li>
</ul>
</div>
<div class="section" id="the-process-for-nomination">
<h3>The Process for Nomination<a class="headerlink" href="#the-process-for-nomination" title="Permalink to this heading">¶</a></h3>
<ul class="simple">
<li><p>Each module has its own process. Please contact module maintainers for more information.
However, if there is no process identified, you can file a request to the core
maintainers by submitting <a class="reference external" href="https://share.hsforms.com/1fh3SpHFMR2ihEBQ2orgN8A4tvhy">this form</a>.
Core maintainers are meeting every three months.</p></li>
<li><p>If you are submitting a request to the core maintainers, the information in your request
must include the following items:</p>
<ul>
<li><p>The nominees depth and breadth of code, review and design
contributions on the module</p></li>
<li><p>Testimonials (positive and negative) of the nominee’s interactions
with the maintainers, users, and the community</p></li>
<li><p>General testimonials of support from the maintainers</p></li>
</ul>
</li>
<li><p>The core maintainers then evaluate all information and make
a final decision to Confirm or Decline the nomination. The
decision of the core maintainers has to be articulated well
and would be public.</p></li>
</ul>
</div>
<div class="section" id="the-process-for-removal">
<h3>The Process for Removal<a class="headerlink" href="#the-process-for-removal" title="Permalink to this heading">¶</a></h3>
<ul class="simple">
<li><p>Similar to the process for nomination, anyone in the community
can nominate a person to be removed from a Module maintainer
position or a Core maintainer position.</p></li>
<li><p>A person can also self-nominate to be removed</p></li>
<li><p>The core maintainers (excluding persons with conflict of
interest) will request or put together more information around
the following:</p>
<ul>
<li><p>Their activity (or lack of) on the project</p></li>
<li><p>Their changing thinking of the space, which results in
conflict with the overall direction of the project</p></li>
<li><p>Other information that makes them unfit to be a maintainer,
such as Code of Conduct issues, their activity outside the
scope of the project that conflicts with the project’s values</p></li>
<li><p><strong>Conflicts of interest</strong>: filial or romantic relationships</p></li>
</ul>
</li>
<li><p>The core maintainers then evaluate all information and make
a final decision to Confirm or Decline the removal. The decision
of the core maintainers has to be articulated well and would be
public.</p></li>
</ul>
</div>
<div class="section" id="nominating-core-maintainers">
<h3>Nominating Core Maintainers<a class="headerlink" href="#nominating-core-maintainers" title="Permalink to this heading">¶</a></h3>
<ul class="simple">
<li><p>Any core or module maintainer can nominate someone to become a
core maintainer</p></li>
<li><p>The lead maintainer (BDFL) is responsible for evaluating the
nomination.</p></li>
<li><p>The lead maintainer requests or puts together more information
around the strength of the candidate to be a core maintainer:</p>
<ul>
<li><p>Letters of support from other core and module maintainers</p></li>
<li><p>General letters of support from stakeholders within the PyTorch
community</p></li>
<li><p>Any new relevant information that is befitting for the candidacy</p></li>
</ul>
</li>
<li><p>The lead maintainer evaluates all information and makes a final
decision to Confirm or Decline the nomination, with a clear public
articulation of their reasoning behind the decision.</p></li>
</ul>
</div>
<div class="section" id="removing-the-lead-core-maintainer-and-nominating-a-new-lead-core-maintainer">
<h3>Removing the Lead Core Maintainer and Nominating a New Lead Core Maintainer<a class="headerlink" href="#removing-the-lead-core-maintainer-and-nominating-a-new-lead-core-maintainer" title="Permalink to this heading">¶</a></h3>
<ul class="simple">
<li><p>A super-majority of core maintainers (75%) can choose to
remove the Lead Core Maintainer</p></li>
<li><p>After a removal of the Lead Core Maintainer or in unforeseen
circumstances (such as permanent unavailability of the Lead Core
Maintainer), the core maintainers follow a Ranked-Choice voting
method to elect a new Lead Core Maintainer.</p></li>
</ul>
</div>
</div>
<div class="section" id="add-remove-and-re-scope-modules-and-projects">
<h2>Add, Remove, and Re-Scope Modules and Projects<a class="headerlink" href="#add-remove-and-re-scope-modules-and-projects" title="Permalink to this heading">¶</a></h2>
<p>The core maintainers together are responsible for taking
decisions on adding, removing and re-scoping new modules
in the PyTorch org, either as new repositories in the
PyTorch GitHub org, or as folders in the
<a class="reference external" href="https://github.com/pytorch/pytorch">pytorch/pytorch</a>
repository.</p>
<p>They invite proposals from members in the community
(including themselves) for such changes.
The proposals are open-ended, but should have some basic
ground-work to make a convincing case to make change. The
following is an example approach to this process:</p>
<ol class="arabic simple">
<li><p>Interview researchers / stakeholders, talk to community, gather issues;</p></li>
<li><p>Read papers, attend conferences, build example pipelines based on experience;</p></li>
<li><p>Create a state of the world - make sure this change is necessary,
for example adding a new project or module is worth the maintenance
cost; or removing a project or module will not remove too much value
from PyTorch;</p></li>
<li><p>Create a proposal; the proposal covers the maintainership, development
and community plan once the proposal is approved.</p></li>
</ol>
<p>The core maintainers take final decisions on the proposal, articulating
the reasoning behind the decision publicly.</p>
</div>
<div class="section" id="decision-making">
<h2>Decision Making<a class="headerlink" href="#decision-making" title="Permalink to this heading">¶</a></h2>
<div class="section" id="uncontroversial-changes">
<h3>Uncontroversial Changes<a class="headerlink" href="#uncontroversial-changes" title="Permalink to this heading">¶</a></h3>
<p>Primary work happens through issues and pull requests on
GitHub. Maintainers should avoid pushing their changes directly to
the PyTorch repository, instead relying on pull requests. Approving a
pull request by a core or module maintainer allows it to be merged
without further process. Core and module maintainers, as listed on
the <a class="reference external" href="https://pytorch.org/docs/stable/community/persons_of_interest.html">Maintainers</a>
page and within <a class="reference external" href="https://github.com/pytorch/pytorch/blob/master/CODEOWNERS">CODEOWNERS</a>
ultimately approve these changes.</p>
<p>Notifying relevant experts about an issue or a pull request
is important. Reviews from experts in the given interest area are
strongly preferred, especially on pull request approvals. Failure to do
so might end up with the change being reverted by the relevant expert.</p>
</div>
<div class="section" id="controversial-decision-process">
<h3>Controversial Decision Process<a class="headerlink" href="#controversial-decision-process" title="Permalink to this heading">¶</a></h3>
<p>Substantial changes in a given interest area require a GitHub issue to
be opened for discussion. This includes:</p>
<ul class="simple">
<li><p>Any semantic or syntactic change to the PyTorch framework or library.</p></li>
<li><p>Backwards-incompatible changes to the Python or C++ API.</p></li>
<li><p>Additions to the core framework or library, including substantial new
functionality within an existing library.</p></li>
<li><p>Removal of core features or platform support</p></li>
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<p>Core and module maintainers ultimately approve these changes.</p>
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<h3>General Project Policies<a class="headerlink" href="#general-project-policies" title="Permalink to this heading">¶</a></h3>
<p>PyTorch has been established as PyTorch a Series of LF Projects, LLC.
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<p>PyTorch participants acknowledge that the copyright in all new contributions
will be retained by the copyright holder as independent works of authorship
and that no contributor or copyright holder will be required to assign copyrights
to the project. Except as described below, all code contributions to the project
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<div class="section" id="faq">
<h2>FAQ<a class="headerlink" href="#faq" title="Permalink to this heading">¶</a></h2>
<p><strong>Q: What if I would like to own (or partly own) a part of the project
such as a feature area or domain library, for example</strong> <a class="reference external" href="https://github.com/pytorch/pytorch/tree/master/torch/linalg">Linear Algebra</a>
<strong>or</strong> <a class="reference external" href="https://github.com/pytorch/vision">Torch Vision</a> <strong>?</strong>
This is absolutely possible.
The first step is to start contributing to the existing project area and
supporting its health and success. In addition to this, you can
make a proposal through a GitHub issue for new functionality or changes
to improve the project area.</p>
<p><strong>Q: What if I am a company looking to use PyTorch internally for
development, can I be granted or purchase a board seat to drive the
project direction?</strong> No, the PyTorch project is strictly driven by the
a maintainer project philosophy and clearly separates technical
governance from business governance. However, if you want to be
involved in sponsorship and support, you can become involved in the
PyTorch Foundation (PTF) and sponsorship through this. You can also
have individual engineers look to become maintainers, but this is
not guaranteed and is merit-based.</p>
<p><strong>Q: Does the PyTorch project support grants or ways to support
independent developers using or contributing to the project?</strong> No, not
at this point. We are however looking at ways to better support the
community of independent developers around PyTorch. If you have
suggestions or inputs, please reach out on the PyTorch forums to
discuss.</p>
<p><strong>Q: How do I contribute code to the project?</strong> If the change is
relatively minor, a pull request on GitHub can be opened up immediately
for review and merge by the project committers. For larger changes,
please open an issue to make a proposal to discuss prior. Please also
see the <a class="reference internal" href="contribution_guide.html"><span class="doc">PyTorch Contributor
Guide</span></a> for contribution
guidelines.</p>
<p><strong>Q: Can I become a committer on the project?</strong> Unfortunately, the
current commit process to PyTorch involves an interaction with Facebook
infrastructure that can only be triggered by Facebook employees. We are
however looking at ways to expand the committer base to individuals
outside of Facebook and will provide an update when the tooling exists
to allow this.</p>
<p><strong>Q: What if I would like to deliver a PyTorch tutorial at a conference
or otherwise? Do I need to be ‘officially’ a committer to do this?</strong> No,
we encourage community members to showcase their work wherever and
whenever they can. Please reach out to
<a class="reference external" href="mailto:marketing%40pytorch.org">marketing<span>@</span>pytorch<span>.</span>org</a>
for marketing support.</p>
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