Chris Lattner
@clattner_llvm
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Building beautiful things like Mojo🔥 and MAX @Modular , lifting the world of production AI/ML software into a new phase of innovation. We’re hiring! 🚀🧠
Joined June 2014
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Turns out that Tesla isn't a good fit for me after all. I'm interested to hear about interesting roles for a seasoned engineering leader!
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My resume is easy to find online. 7 years of Swift experience 👍
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Swift is 10 years old today:
Pretty amazing how far things have come in such a short time!
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I'm super excited to join Google Brain next week: AI can't democratize itself (yet?) so I'll help make it more accessible to everyone!
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It was a joy catching up with you Lex, you're one of my favorite inquisitive people because of your depth of knowledge in AI, programming, and willingness to really explore complex topics. 🔥+❤️=❤️🔥
Here's my conversation with Chris Lattner (
@clattner_llvm
), a legendary engineer, his 3rd time on the podcast. We talk about Modular AI and Mojo, a new programming language that is a superset of Python and can achieve 35,000x+ speed ups over Python.
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My decision has nothing to do with "openness". The "friend" cited is either fabricated or speculating. Folk just want to make 🍎 look bad. 😠
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I wrote a thing! An essay looking at how async/await+actors could transform Swift concurrency & distributed compute:
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Mojo🔥 is here! Many, many folks want to download and run the Mojo compiler locally instead in notebooks... but languages aren't just a compiler, you need a full ecosystem of developer tools to build things!
Mojo is still a young language, but today is a huge step forward! 🚀❤️🔥
Mojo🔥 is now available for download locally to your machine! ❤️🔥🚀
Beyond a compiler, the Mojo SDK includes a full set of developer and IDE tools 🛠 that make it easy to build and iterate on Mojo applications. Let’s build the future together!🔥
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Mojo🔥 is no threat to Python🐍: it lifts it up and gives Python programmers superpowers🦸.
If anyone should be scared, it should be C++ and hard to use accelerator languages. Python is what developers love: C++ is mostly a pragmatic necessary evil for when you need performance.
Can Python survive this?
Modular, the company behind Mojo just raised $100 million dollars to fix AI infrastructure for developers.
That's a lot of money!
Mojo is a programming language for AI developers and is 35,000x faster than Python (Modular's benchmarks.) It combines the…
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I am super excited to join
@SiFive
today, leading the software team that builds tooling to enable 'silicon at the speed of software'. Chip design is challenging, and needs open tools that are well designed, easy to use, and state of the art. More at:
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Looking forward to next month: I'll be the first and only guy with 4 years of swift programming experience :-)
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Swift's comments and test suite are on track to be one of the most correctly spelled and best indented ones in the industry! 🐙🐱
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Swift for
@TensorFlow
Talk video and announcement are up! Check it out: and join the conversation:
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I'm super excited the "Actors" proposal was accepted by swift-evolution last week. This is a major step forward for improving memory safety / design patterns for task based concurrency on CPUs. Swift is the first mainstream language to embark on this! 💪
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Thanks to ATP for hosting me on their show to ramble semicoherently about Swift past and future!
205: People Don't Use the Weird Parts
A surprisingly deep dive into Swift, now that one of us is finally using it.
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I finally updated my resume, it now includes my contributions to Tesla. Been busy and working hard! 🏎✇
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Happy 1 year anniversary to Swift Open Source and an amazing community!! 🎂🎂
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Today is the result of an amazing amount of work by dedicated and phenomenal teams of people across Apple. Proud to be part of the team!
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Obscure :-)
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Kids learn fast and coding comes natural to them -- we built Playgrounds to be simple and engaging so kids can teach their parents 😉✌️🐣🐥
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Amjad: no joking, my son was telling me last week that we need to get Mojo into Replit so he can use it at his school. I'm pretty sure we can figure this out?
Chris Lattner of LLVM and Swift fame just announced a new programming language for ML that is high-performance and backwards compatible with Python (works with Python libraries). Could be a game changer.
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Last week was incredibly hard: saying goodbye to so many amazing colleagues and friendships😢. 🍏 is in such great hands. I will miss you all!
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Super excited to be part of the team that's bringing Machine Learning supercomputers to the world with Google Cloud TPUs. An immense number of scalable FLOPS can completely change productivity - and hopefully unlock entirely new avenues for ML research and production.
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Super excited that the Swift for TensorFlow compiler changes are moving into the main github repository:
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Swift at Google has enough folks working on it that we need a staging ground/integration point, and we decided it should be public.
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A big step forward for Mojo - it's not just open source, but open development and contribution model with a progressive Apache2 LLVM license. 🏆
We ❤️🔥 the Mojo community and are thrilled to continuously open the language and its development as little Mojo is growing up!
👩💻 We're excited to announce that we've open sourced the Mojo 🔥standard library! 📚
Building Mojo🔥 in the open will lead to a better result and open sourcing the standard library is our next step in the journey.
🚀 We're also dropping MAX 24.2 today!
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After spending years working on AI/ML infrastructure, Modular AI is finally going to build it right. It is time for the best SW architects, engineers and product leaders to come together to lift the world’s ML compute. Learn more at
#modular_ai
#AI
#ML
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First independent Swift language evolution accepted, proposed by well known iOS dev and author
@ericasadun
:
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My previous tweets about Rafael's email confused the matter. Here is a longer-form statement of facts about the situation, and a personal opinion about various aspects:
I am not a web designer.
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Ole's work on these playgrounds is consistently outstanding! 👏👏
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Congrats to the Swift team for a big update. It's exciting to see a mainstream language bring distributed actors for IPC/RPC (on the path to memory safety, almost completing the 2017 Swift Concurrency Manifesto) and native /regex/'s integrated with pattern matching! 💯🏎
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This is a profound and inspiring vision for Swift 6: multi platform investment, concurrency, move semantics, rust-style ownership, Automatic Differentiation and investment in developer joy 💖🚀
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So true. Too many apparently "simple" techs merely shift the complexity to other places (higher level tools, frameworks, pkg managers, wrappers, syntax extensions, etc). Well designed systems are simple to learn and use end-to-end, while permitting experts to build amazing things
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Mojo🔥 0.4 just dropped today with a MASSIVE number of updates across language, library and tools built in the last two weeks. 🥰 Mac support didn't quite make the train but is looking promising for release soon! 🧑💻
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Swift just passed 30K stars on github, here's to an amazing community! 🎉👍
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Sigh internet🧐. Clarifying: all of the projects I was involved in & driving at Google (incl. S4TF, MLIR, an incredible new TF runtime, XLA, TPU SW, etc) are in very good hands 💪🙌, have exec commitment and strong roadmaps. I c/wouldn't leave if uncertain about that!
@JeffDean
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Many many months later, family DIY treehouse/sandbox/slide is finally done-for-now. Kid tested and approved! 🌲🌳🐌
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Rust experts say: "If Mojo is true, then I think Mojo will win just hands down. The reason Mojo will win, you don’t change the paradigm of already acclimated or proficient individual. Learn a bit more, and get amazing performance”
Good news: Mojo is true! Try it yourself today!
Don't miss
@ThePrimeagen
video covering our epic community blog 💪 comparing Mojo 🔥 and Rust ⚙️. Mojo 🔥 aims to be a superset of Python 🐍 over time, and we remain committed to our incredible community & open-source roadmap. Join Us! 👇🏼⬇️
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Finalllly: Mojo🔥 + Apple Silicon🧑💻 is ❤️🔥❤️🔥❤️🔥!!
Today is the day! Mojo for Mac is live! 🔥 😱 🚀 Download it right now! ❤️🔥
Read our launch blogpost on how to get started ⬇️
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We're super excited to provide an update on Swift for TensorFlow - things are getting real! Cloud TPUs are also making ML super computers available to everyone, come find out more at the
#TFDevSummit
!
Get ready to learn about the latest developments in:
@TensorFlowJS
Swift for
@TensorFlow
TensorFlow Lite
TPU Research Cloud
TensorFlow 2.0
TensorFlow Hub
TensorFlow Extended (TFX)
...and more!
Register for the
#TFDevSummit
today →
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Always great to see the work of so many fantastic people come together. If you're wondering, Swift Playgrounds really is something special!
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Very excited we get to talk about some of the work of the Google MLIR compiler team in a couple weeks. This new infra is a pretty profound rethink of compiler architecture and design, applicable to many domains. Abstract at the bottom of:
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Only Lex could take the discussion through a whole lot of compiler geekery (llvm, gcc, clang, mlir), some of the internal challenges getting swift to market, my opinion of Elon’s secret to Tesla working, up to Google’s incredible lead in AI accelerators: hw/sw co-design on TPUs👍
Here's my conversation with Chris Lattner (
@clattner_llvm
) on the Artificial Intelligence podcast. He is one of the top experts in the world on compilers and powerful software+ML+hardware systems in general, w/ exciting projects at Google, Tesla, & Apple.
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Epic work, the thing I love about this is how small and clean the code is - literally reimplementing everything down to the metal instead of depending on thick layers of magic.
The out-of-the-box features of
@Modular_AI
's Mojo are just incredible. We applied unrolling and now llama2.🔥 outperforms
@ggerganov
's llama.cpp by almost 20% in CPU inference speed.
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The Mojo internals technical talk is now available👇. Dig in to learn more about how Mojo's compiler architecture is a step forward from other languages, about our quest to lift performance engineering out of compilers and into libraries, and Mojo for heterogenous compute. 🔥🔥
Our 2nd keynote, "Mojo 🔥: A system programming language for heterogenous computing", from the 2023 LLVM Developers' Meeting is now available:
#Mojo
#LLVMDevMtg
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It is /such/ an exciting time in AI - where research is opening new capabilities on a daily basis!
Modular is driving complexity out of the system to allow more people to participate, enable new kinds of full-stack innovation, and to get that research to production. 🔥🚀
We are so excited to announce we have raised $100M to fix AI infrastructure for the world's developers, led by
@generalcatalyst
and filled by
@GVteam
,
@svangel
,
@GreylockVC
and Factory. We are humbled and so thankful to our incredible customers, developers & world-class team! 🚀
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Of course Swift supports #! scripts, you can immediately execute a swift script with "xcrun swift -i".
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I have no idea how this is physically possible, but the amazing TensorFlow team has the session videos already available on YouTube! Check out the Swift for
@TensorFlow
video at
#TFDevSummit
2019 here:
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A late 🎁 for
@tonic888
, finally finished building her 8' long claro walnut 🌳 dining table.
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In case you missed it: 📙"The Swift Programming Language" was updated for Swift 3 beta 1:
&
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Pretty awesome that there is now a supported way to program Lego Mindstorms with real Swift code! 🤖🏎📱
Apple’s Swift Playgrounds coding app now supports robots, drones, and toys
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The
@code
experience and ecosystem is amazingly great. It's a such a well done and delightful IDE.
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IMO, the most important and transferable (to other domains) part of compilers is: the design, representation, validation and transformation of structured data. The mentality and designcenter crosscuts all of computing, from the simplest json payload to the most fiddly compiler IR
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Swift Playgrounds 1.1 Update is huge: Learn To Code 3, sound/music, line highlighting, Hour of Code, and more:
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John’s first edition is really great work and a nice resource for Swift programmers, 💯. I’m signing up!
Starting to put together the content for my 2nd monthly newsletter - going out in one week! 🚀
Just like last month, it'll be packed full of Swift content, and I'm also going to throw in more tips for time management & productivity! 😀
Sign up here 📬
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Slides + speaker notes for my talk at IBM are up, discussing the road ahead of
@SwiftLang
, focused on research:
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I often write code in the evenings so I can spend most of the day working with people. Rationale: “10x” leaders realize that the best products are built by diverse and collaborative teams, and great teams take a lot of work to get right. Invest in building up humans & code!
Just published a post "At what time of day does famous programmers work?" with data from commits made by
@linus__torvalds
,
@kraih
,
@clattner_llvm
,
@rob_pike
,
@bradfitz
,
@rasmus
,
@gvanrossum
.
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We've worked VERY hard to make sure our performance claims are fair, accurate, and have no "tricks". This is raw drag-racing against the mature systems that the industry already uses... and we're just getting started. o/c We support all the tricks as well, they compose on top!
You should checkout the world’s fastest unified AI inference engine, and its performance, on . Unparalleled performance across frameworks, models and hardware 🔥
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Happy 3rd announciversary, unveiliversity, or revealiversity (?) of
@SwiftLang
🎉. Looking forward to next week!
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Slides from our unveil of the new MLIR compiler infra are now up at bottom of . The team is very excited to get this out & there is a lot more to talk about later. We are focused on open sourcing in the next couple months! 🎈🎉
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Jeremy pulls back the covers on what makes Mojo tick, why, and why that matters. I also love that he shares the backstory on building the demo and working with the Modular crew. Among his other virtues, he is a master story teller!
There's a new programming language in town - it's Mojo! I'm more than a little excited about it. It's Python, but with none of Python's problems.
You can write code as fast as C, and deploy small standalone applications like C.
My post is below, and a 🧵
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Unnoticed? The awesome Swift Prog Lang "iBook" is now available under CC license, translations would be so great 📖
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TLDR: compared to LLVM C++ style, idiomatic swift is half the code. The untuned swift is faster than untuned C++ 🌻
Comparing Swift to C++ for parsing (where I turn swift's Demangled.cpp into Swift and make it Swifty)
#swiftlang
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Also, seriously, how is there no brain emoji? This is an outrage 😱
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We got tons of disbelief about how Mojo could be faster in practice than languages like Rust or C++ or Swift. This article lifts the hood a bit to peak at how this works from a technical perspective. 🏎⚙️
Inspired by
@ThePrimeagen
's epic video discussing Mojo 🔥 and Rust 🦀, and fueled by an electrifying community discussion ⚡️ - we have a new post up, and you wont want to miss this one! 😱 ⬇️
Mojo vs. Rust: is Mojo 🔥 faster than Rust 🦀 ? 🤔 ❤️🔥
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I say this as someone who has written literally millions of lines of C++ code and have lived to tell the tale... ;-)
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Most perplexing feedback on Swift: folks who see it (and judge it) as the end of a trek - but don't realize it is the start of a new world.
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RIP Kaylee, 2006-2017. Your amazing snuggling and even more amazing snoring will be truly missed. You will always be a part of our family.
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Nice to see Swift continue its fast growth - interesting that Swift, C and C++ are the only traditionally statically compiled languages in the top 10.
🔥Programming Language
#C
awarded TIOBE
#ProgrammingLanguage
of the Year 2019.
Language C wins the award with an yearly increase of 2.4%.
Runners up are C# (+2.1%),
#Python
(+1.4%) and
#Swift
(+0.6%).
#fruktorum
#fructustemporum
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Xcode 8 GM Seed is now available: Swift 3 code can now be submitted to the App Store!
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Fun fact for compiler folks: Swift has a new high-level language-specific optimizer and IR before LLVM, try xcrun swift t.swift -O -emit-sil
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Just three days after launch... ❤️🔥
The first crack at llama2.🔥 is here 🚀
A Mojo 🔥 community member - Mojician - did a simple port from Python to Mojo, and shows its already 20% faster than Karpathys llama.c implementation 😱 How much faster can it go? 📈
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I'm looking forward to sharing some of my experiences building Open Source tools and communities (e.g. LLVM, Clang, Swift, Mojo and others) at the Accel | Open Source meeting next Wednesday in SF:
Join a great speaker lineup + amazing community! 🔥
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Who said that LLVM Bitcode can't make huge architectural transitions seamless? Congrats to the 🍎⌚️ team:
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1 week minireview of the Tesla Model 3: the hardware is truly great (a big step up from my Model S) but the software is unfinished and buggy.
I’m also sad how little progress HW2 Autopilot has made since I last drove it in June...
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Tuesday is going to be wild. If you care about AI, developer tools, or software engineering, there is a good chance it will 🤯 your mind! Join us 9am pacific at
Life update: I started a new job at
@Modular_AI
! I was just about to accept an offer from Apple after leaving Google but after talking to
@clattner_llvm
and realizing how they planned to disrupt AI I knew I had to join. The public unveiling is Tuesday!
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Google Brain is hiring! We're continuing to look for exceptional compiler engineers, and Swift developers who are ML savvy. More details here:
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... but also allow the tree to live on in its own backyard, in a super useful form. Ultra locally sourced and organic :-)
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Building a programming language from scratch is a very long game. It’s the sort of thing best done when you walk into it knowing the challenges and understand what a huge effort it entails… this only makes sense when moving SoTA is worth it (to the world as a whole). 🔥
Apple has been working so hard on Swift, and I love their persistence in making it perfect. They never seem to do something hacky/short-term.
I think that this is exactly why Swift takes so long to be adopted. But I wouldn't have it another way.
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Unlocking modern hardware is lit! 🔥 Imagine what capabilities the next generation of computers will bring!
You thought 68k was good, 90k is better 😏 Mac users, welcome to Mojo🔥!
Download this Thursday at 🤘🏼💯
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An intro to what LLVM is and how it works that I wrote a while ago:
http://t.co/O701BWcwys
I'm happy it is useful!
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Special shout out to
@mingshenghong
who figured out how to get Swift + TensorFlow to work (he built the Swift runtime for TF), and
@rxwei
+ Dan Zheng who built the Tensor API and the autodiff implementation. Such a great team!
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The Google Brain team is hiring for a wide range of positions spanning compiler engineering, runtime and systems work, ML modeling and infrastructure, API design, Swift compiler engineering, data perf optimization, and more
See this page for more details!
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The video of the unveil of the Google MLIR compiler infrastructure is now available. It was a lot of fun getting to present with Tatiana, who is the tech lead and manager of the project. The talk showcases the work of many amazing engineers, thank you! 🎉
The 2019 EuroLLVM keynote is now available on our YouTube Channel! More videos on their way.
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Another big HW2 release: Not mentioned in the release notes, but performance/feel is much improved as well
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Just to clarify, it is 10 years since the first lines of code written in secret. The public launch was in June 2014 at WWDC, and the open source release in December 2015. Time flies. Such a great team. So much left to do!
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#linuxgate
is just 🤮🤮. I get that the LKML CoC was (apparently) rushed, but it is still a great step forward as a statement of intent. When did the principle of treating people with respect become so controversial? I'm so happy to work in progressive and positive communities!
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Finished Riley’s treasure box for Xmas: 🦓 wood, sapelle & bamboo, an experiment with rounded box joint corners.
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The opportunity of Swift/Server, incl. how Swift's huge memory advantage is key for scalable servers and the cloud:
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Wow, I didn't realize that llvm/clang were growing this fast. Such a great community!
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@anatomisation
No, I mean it. I can disagree with someone and respect their beliefs at the same time. Intolerance of differing opinions is not good for anyone.
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I am definitely sad to lose Rafael from the LLVM project, but it is critical to the long term health of the project that we preserve an inclusive community. I applaud Rafael for standing by his personal principles, this must have been a hard decision.
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