Why C++ Sucks for AI Programming

Latent Space · Intermediate ·📄 Research Papers Explained ·11mo ago

Key Takeaways

Chris Lattner discusses the limitations of C++ for AI workloads and the development of Mojo, a new programming language, highlighting the importance of refactoring APIs and adding support for various models and hardware.

Full Transcript

But then they come back and it's like, "Okay, well everything sucks. It's not very good." Like, "We got it to work." They changed their minds after they went over. No, no, it worked. We achieved the goal, but it's not very good. The code is ugly. There's technical debt. There's this and that and the other thing. It only runs an A100. It's only one model. This isn't useful. This isn't like a valuable contribution. And uh you know, I I built some things in the past, right? And so I said, "Well, that's okay. We have one thing that works end to end, and we know 400 ways to make it better." Yeah. And so instant mode switch. And at that point you say, "Okay, well let's just break it down like a normal engineering problem. It's not R&D anymore. It's an engineering problem." You say, "Okay, cool. Let's refactor these APIs. Let's deprecate this thing. Let's Oh, yeah. Let's add H100 support. Let's add function calling and token sampling and like all the different things you need. You can project manage that, right? And so every six weeks we've been shipping a new release." And so we added all the function calling features. And now you have aentic workflows. We have 500 models. We have H100 support. Uh we're about to launch our AMD MI300 and 325 support. That'll be a big deal for the industry. And as you do that in Blackwell, like all this stuff is like all now in the product. And so as this happens now, suddenly it's like, oh, okay, I get it. But this is a very fundamentally different phase for us because it works.

Original Description

Why build a new programming language when everyone already uses Python and C++? Chris Lattner explains the origin of Mojo and why C++ "sucks" for AI workloads.
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Chris Lattner explains why C++ is not suitable for AI workloads and introduces Mojo, a new programming language, highlighting its development and features. He discusses the importance of refactoring APIs and adding support for various models and hardware. This talk provides insights into the development of AI programming languages and the optimization of AI workloads.

Key Takeaways
  1. Identify the limitations of current AI programming languages
  2. Determine the need for a new programming language
  3. Refactor APIs for better performance
  4. Add support for various models and hardware
  5. Develop autentic workflows
  6. Optimize AI workflows for better performance
💡 The development of a new programming language, Mojo, is necessary to overcome the limitations of current AI programming languages, such as C++, and to provide better support for AI workloads and various hardware.

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