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Adding timestamps to Julia YouTube videos!
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Enzyme.jl -- Reverse mode diff'n on LLVM IR for Julia | V. Churavy, W. Moses | JuliaCon 2021 #163

Closed KZiemian closed 9 months ago

KZiemian commented 2 years ago

Enzyme.jl -- Reverse mode diff'n on LLVM IR for Julia, https://www.youtube.com/watch?v=gFfePK44ICk

This talk was very hard to do, I guess timestamps still may be acceptable.

Contents 00:00 Welcome! 00:17 Aren't there enough AD (Automatic Differentiation) frameworks in Julia? 01:08 So, what does Enzyme.jl bring to the table? 03:31 Enzyme.jl approach to AD 04:03 Challenge of low-level AD: low-level code lacks information need to compute adjoints 05:09 Overview of few concepts in low-level AD 07:26 Closer look at type analysis 08:54 Closer look at activity analysis 09:57 Decomposing the "tape" 11:15 Closer look at shadow memory 11:54 Closer look at the cache 12:59 New features in Enzyme.jl 0.7 14:45 User specified activity information 16:20 Live demo 16:37 First example: simple square function x^2 18:10 Second example: mutation function cube 19:25 Enzyme.jl DuplicatedNoNeed feature 20:23 Differentiating through control flow 22:20 Differentiating through more complicated codes: matrix multiply 23:50 Some more fun with complicated code 25:03 Demo of GPU code 26:45 What next? 28:12 Wishes from the ChainRules.jl interface 29:58 Summary

Resources ChainRules.jl Enzyme.jl

KZiemian commented 9 months ago

Timestamps were added to the video. We will close this issue, when we get access rights to this GitHub repository.