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Nội dung được cung cấp bởi PyTorch, Edward Yang, and Team PyTorch. Tất cả nội dung podcast bao gồm các tập, đồ họa và mô tả podcast đều được PyTorch, Edward Yang, and Team PyTorch hoặc đối tác nền tảng podcast của họ tải lên và cung cấp trực tiếp. Nếu bạn cho rằng ai đó đang sử dụng tác phẩm có bản quyền của bạn mà không có sự cho phép của bạn, bạn có thể làm theo quy trình được nêu ở đây https://vi.player.fm/legal.

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<div class="span index">1</div> <span><a class="" data-remote="true" data-type="html" href="/series/all-about-change">All About Change</a></span>

<div class="span index">1</div> <span><a class="" data-remote="true" data-type="html" href="/series/all-about-change">All About Change</a></span> podcast artwork

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All About Change

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How do we build an inclusive world? Hear intimate and in-depth conversations with changemakers on disability rights, youth mental health advocacy, prison reform, grassroots activism, and more. First-hand stories about activism, change, and courage from people who are changing the world: from how a teen mom became the Planned Parenthood CEO, to NBA player Kevin Love on mental health in professional sports, to Beetlejuice actress Geena Davis on Hollywood’s role in women’s rights. All About Change is hosted by Jay Ruderman, whose life’s work is seeking social justice and inclusion for people with disabilities worldwide. Join Jay as he interviews iconic guests who have gone through adversity and harnessed their experiences to better the world. This show ultimately offers the message of hope that we need to keep going. All About Change is a production of the Ruderman Family Foundation. Listen and subscribe to All About Change wherever you get podcasts. https://allaboutchangepodcast.com/

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Expect tests

cách đây 4 năm trước 13:26

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MP3•Trang chủ episode

Nội dung được cung cấp bởi PyTorch, Edward Yang, and Team PyTorch. Tất cả nội dung podcast bao gồm các tập, đồ họa và mô tả podcast đều được PyTorch, Edward Yang, and Team PyTorch hoặc đối tác nền tảng podcast của họ tải lên và cung cấp trực tiếp. Nếu bạn cho rằng ai đó đang sử dụng tác phẩm có bản quyền của bạn mà không có sự cho phép của bạn, bạn có thể làm theo quy trình được nêu ở đây https://vi.player.fm/legal.

What's an expect test? Why should you use them? Why is inline expect test better than out of line? How to write a good expect test?

Further reading. expecttest source implementation https://github.com/pytorch/pytorch/blob/master/torch/testing/_internal/expecttest.py (only 311 lines!)

… continue reading

83 tập

#Tech #PyTorch #Edward Yang #Team PyTorch #Deep Learning #Machine Learning

PyTorch Developer Podcast

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Expect tests

PyTorch Developer Podcast

32 subscribers

published cách đây 4 năm trước

Chia sẻ

MP3•Trang chủ episode

Nội dung được cung cấp bởi PyTorch, Edward Yang, and Team PyTorch. Tất cả nội dung podcast bao gồm các tập, đồ họa và mô tả podcast đều được PyTorch, Edward Yang, and Team PyTorch hoặc đối tác nền tảng podcast của họ tải lên và cung cấp trực tiếp. Nếu bạn cho rằng ai đó đang sử dụng tác phẩm có bản quyền của bạn mà không có sự cho phép của bạn, bạn có thể làm theo quy trình được nêu ở đây https://vi.player.fm/legal.

What's an expect test? Why should you use them? Why is inline expect test better than out of line? How to write a good expect test?

Further reading. expecttest source implementation https://github.com/pytorch/pytorch/blob/master/torch/testing/_internal/expecttest.py (only 311 lines!)

… continue reading

83 tập

#Tech #PyTorch #Edward Yang #Team PyTorch #Deep Learning #Machine Learning

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Compiler collectives 16:33

cách đây 36 weeks trước16:33

16:33

Compiler collectives are a PT2 feature where by compiler instances across multiple ranks use NCCL collectives to communicate information to other instances. This is used to ensure we consistently decide if inputs or static or dynamic across all ranks. See also PR at https://github.com/pytorch/pytorch/pull/130935…

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TORCH_TRACE and tlparse 15:28

cách đây 50 weeks trước15:28

15:28

TORCH_TRACE and tlparse are a structured log and log parser for PyTorch 2. It gives useful information about what code was compiled and what the intermediate build products look like.

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Higher order operators 17:10

cách đây 51 weeks trước17:10

17:10

Higher order operators are a special form of operators in torch.ops which have relaxed input argument requirements: in particular, they can accept any form of argument, including Python callables. Their name is based off of their most common use case, which is to represent higher order functions like control flow operators. However, they are also used to implement other variants of basic operators and can also be used to smuggle in Python data that is quite unusual. They are implemented using a Python dispatcher.…

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Inductor - Post-grad FX passes 24:07

cách đây 1 year trước24:07

24:07

The post-grad FX passes in Inductor run after AOTAutograd has functionalized and normalized the input program into separate forward/backward graphs. As such, they generally can assume that the graph in question is functionalized, except for some mutations to inputs at the end of the graph. At the end of post-grad passes, there are special passes that reintroduce mutation into the graph before going into the rest of Inductor lowering which is generally aware of passes. The post-grad FX passes are varied but are typically domain specific passes making local changes to specific parts of the graph.…

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CUDA graph trees 20:50

cách đây 1 year trước20:50

20:50

CUDA graph trees are the internal implementation of CUDA graphs used in PT2 when you say mode="reduce-overhead". Their primary innovation is that they allow the reuse of memory across multiple CUDA graphs, as long as they form a tree structure of potential paths you can go down with the CUDA graph. This greatly reduced the memory usage of CUDA graphs in PT2. There are some operational implications to using CUDA graphs which are described in the podcast.…

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Min-cut partitioner 15:56

cách đây 1 year trước15:56

15:56

The min-cut partitioner makes decisions about what to save for backwards when splitting the forward and backwards graph from the joint graph traced by AOTAutograd. Crucially, it doesn't actually do a "split"; instead, it is deciding how much of the joint graph should be used for backwards. I also talk about the backward retracing problem.…

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AOTInductor 17:30

cách đây 1 year trước17:30

17:30

AOTInductor is a feature in PyTorch that lets you export an inference model into a self-contained dynamic library, which can subsequently be loaded and used to run optimized inference. It is aimed primarily at CUDA and CPU inference applications, for situations when your model export once to be exported once while your runtime may still get continuous updates. One of the big underlying organizing principles is a limited ABI which does not include libtorch, which allows these libraries to stay stable over updates to the runtime. There are many export-like use cases you might be interested in using AOTInductor for, and some of the pieces should be useful, but AOTInductor does not necessarily solve them.…

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Tensor subclasses and PT2 13:25

cách đây 1 year trước13:25

13:25

Tensor subclasses allow you to add extend PyTorch with new types of tensors without having to write any C++. They have been used to implement DTensor, FP8, Nested Jagged Tensor and Complex Tensor. Recent work by Brian Hirsh means that we can compile tensor subclasses in PT2, eliminating their overhead. The basic mechanism by which this compilation works is a desugaring process in AOTAutograd. There are some complications involving views, dynamic shapes and tangent metadata mismatch.…

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Compiled autograd 18:07

cách đây 1 year trước18:07

18:07

Compiled autograd is an extension to PT2 that permits compiling the entirety of a backward() call in PyTorch. This allows us to fuse accumulate grad nodes as well as trace through arbitrarily complicated Python backward hooks. Compiled autograd is an important part of our plans for compiled DDP/FSDP as well as for whole-graph compilation.…

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PT2 extension points 15:54

cách đây 1 year trước15:54

15:54

We discuss some extension points for customizing PT2 behavior across Dynamo, AOTAutograd and Inductor.

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Inductor - Define-by-run IR 12:06

cách đây 1 year trước12:06

12:06

Define-by-run IR is how Inductor defines the internal compute of a pointwise/reduction operation. It is characterized by a function that calls a number of functions in the 'ops' namespace, where these ops can be overridden by different handlers depending on what kind of semantic analysis you need to do. The ops Inductor supports include regular arithmetic operators, but also memory load/store, indirect indexing, masking and collective operations like reductions.…

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Unsigned integers 13:07

cách đây 1 year trước13:07

13:07

Traditionally, unsigned integer support in PyTorch was not great; we only support uint8. Recently, we added support for uint16, uint32 and uint64. Bare bones functionality works, but I'm entreating the community to help us build out the rest. In particular, for most operations, we plan to use PT2 to build anything else. But if you have an eager kernel you really need, send us a PR and we'll put it in. While most of the implementation was straightforward, there are some weirdnesses related to type promotion inconsistencies with numpy and dealing with the upper range of uint64. There is also upcoming support for sub-byte dtypes uint1-7, and these will exclusively be implemented via PT2.…

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Inductor - IR 18:00

cách đây 1 year trước18:00

18:00

Inductor IR is an intermediate representation that lives between ATen FX graphs and the final Triton code generated by Inductor. It was designed to faithfully represent PyTorch semantics and accordingly models views, mutation and striding. When you write a lowering from ATen operators to Inductor IR, you get a TensorBox for each Tensor argument which contains a reference to the underlying IR (via StorageBox, and then a Buffer/ComputedBuffer) that says how the Tensor was computed. The inner computation is represented via define-by-run, which allows for compact definition of IR representation, while still allowing you to extract an FX graph out if you desire. Scheduling then takes buffers of inductor IR and decides what can be fused. Inductor IR may have too many nodes, this would be a good thing to refactor in the future.…

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Dynamo - VariableTracker 15:55

cách đây 1 year trước15:55

15:55

I talk about VariableTracker in Dynamo. VariableTracker is Dynamo's representation of the Python. I talk about some recent changes, namely eager guards and mutable VT. I also tell you how to find the functionality you care about in VariableTracker ( https://docs.google.com/document/d/1XDPNK3iNNShg07jRXDOrMk2V_i66u1hEbPltcsxE-3E/edit#heading=h.i6v7gqw5byv6 ).…

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Unbacked SymInts 21:31

cách đây 2 years trước21:31

21:31

This podcast goes over the basics of unbacked SymInts. You might want to listen to this one before listening to https://pytorch-dev-podcast.simplecast.com/episodes/zero-one-specialization Some questions we answer (h/t from Gregory Chanan): - Are unbacked symints only for export? Because otherwise I could just break / wait for the actual size. But maybe I can save some retracing / graph breaks perf if I have them too? So the correct statement is "primarily" for export? - Why am I looking into the broadcasting code at all? Naively, I would expect the export graph to be just a list of ATen ops strung together. Why do I recurse that far down? Why can't I annotate DONT_TRACE_ME_BRO? - How does 0/1 specialization fit into this? I understand we may want to 0/1 specialize in a dynamic shape regime in "eager" mode (is there a better term?), but that doesn't seem to matter for export? - So far we've mainly been talking about how to handle our own library code. There is a worry about pushing complicated constraints downstream, similar to torchscript. What constraints does this actually push?…

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