The Ledger, every show
Every statement that passed quotation and attribution checks, across all 44 shows. Pick shows below, then mix any filter with any other.
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every show 44 of 44
AMD has completely caught up with Nvidia on AI software
“So they caught up on hardware. Now they've caught up on software. Not a lot of people have sort of discovered that they've caught up on software and we're kind of capitalizing on that.”
AMD MI300X outperforms Nvidia H100 on FlashAttention-2 and memory-bound workloads
“We found that it's great for flash attention to specifically, we were able to be H-one hundred. We also found that like the less time you spend in like dense compute, like the less time you spend in tensor cores specifically, or less time you spend in lower bi…”
AI kernel models game automated evaluation metrics with subtly incorrect code
“It would be great, but it's not a silver bullet because kernels are also hard to validate. It's hard to have like an eval in kernels. Every time that someone releases like, oh, we created a new eval that measures kernels and we trained a model that generates k…”
Groq hardware is too inflexible to run alternative architectures like Mamba SSMs
“Grok is very inflexible hardware so that you kind of, if you want to do like a Mamba SSM on it, you're going to have a really hard time because instead of having like a low level CUDA compiler, like everything is like Designed it at the hardware level, right?”
AI labs will increasingly co-design models alongside proprietary custom inference ASICs
“I definitely think things are moving towards you design a model. It's sized the way that fits well on hardware that you can design. You immediately start creating an inference hardware that is custom made to fit the sizes of your model. And then you can also s…”
Offloading thinking to AI tools degrades developers' ability to evaluate code quality
“And I do suggest that people not try and use the model to offload thinking. It should enhance your thinking or else like you'll, you'll get worse over time and you won't know when the model is quality, whether it's outputting quality or not. If you don't know …”
Companies pushing AI code volume metrics will drown in unmaintainable slop
“I think actually there's a lot of big tech examples where they're kind of pushing really hard for their teams to use more code. They're being evaluated on how much code they're using. And they're just kind of getting more and more slop that nobody understands.…”
String theorists ramp faster in AI engineering than complacent CUDA developers
“I don't really care if someone knows CUDA kernel writing. If someone does string theory and is really good at understanding complex problems, they will be productive faster than someone who knows CUDA and doesn't really care about trying to get better at it.”
Zyphra moves its entire model training cluster to AMD hardware
“We recently moved all of our training cluster over to AMD. So we're really going all in on AMD ecosystem.”
Hyperscalers with fixed architectures should build custom AI inference ASICs
“If I was sort of in house, maybe XAI is a good example of this, or Microsoft is another one where they kind of know the model architecture a priori then they absolutely should make an ASIC that is custom designed for that model architecture that they're curren…”
AI engineering speedups require specific use cases and strong digital hygiene
“AI sped me up a bit, but only in specific cases and only when taking a lot of sort of digital hygiene practices.”
Quentin Anthony avoids Cursor to maintain strict control over LLM context
“So I personally don't really use tools like cursor because I want total control over the context. I know what models can handle, what prompts, and I know, for example, one thing I mentioned is context rot. So how long the context is before the model chokes on …”
Zyphra strictly bans engineering candidates from using AI tools during interviews
“No AI in the interview, first off. And you gotta watch people's eyes now on what monitors they're looking at behind the screen, which is, that's changed in the last two or three years, unfortunately. No AI allowed.”
Interviewers can spot AI usage by checking a candidate's response latency
“Anyone who's interviewed people can almost always tell, I think, about whether someone's using AI on the other side. How long is the time to first token? Humans are typically faster than a model.”
Small, funded teams are more effective than broad open-source AI consortiums
“Maybe it sounds wrong, but I feel like banding together is not necessarily good by default. There's a lot of different incentives. There's so much noise that no one knows where to focus. I prefer, if anything, I would prefer siloed focused teams who have fundi…”
Zyphra: Zamba 2 7B beats Llama 3 8B using hybrid Mamba-Transformer architecture
“We released a Zamba two, which was a hybrid between transformers and a Mamba two blocks. And we were able to be like a Lama three eight B for example, with a seven B model.”
AMD MI300X GEMM performance increased from 400 to 650 TFLOPS via software
“So when MI 300 X first dropped, if you run like an MLP gem or something, you would get like 400 T flops. Now that number is, you know, more like six, 606 107 650 or so just in like the gem back ends themselves.”
Training frontends matter little if attention and MLP kernels are highly optimized
“Most of that is an attention and MOPs, right? So if you have good kernels for attention, MOPs and norms and so on, then it doesn't much matter what the front end to, you know, send tensors to and from those kernels is”
AMD's Composable Kernel library offers functionality similar to Nvidia's CUTLASS
“And then on the AMD side, they have this composable kernel library that does something very similar.”
AI coding assistants degrade quickly on low-level CUDA and PTX code
“Getting Below Triton or level or anything else down to like CUDA or below there's orders of magnitude less public good kernels at that level. And I think that really shows and models capabilities. So when I try and get a model to do something in CUDA or PTX or…”
Writing custom GPU kernels is a last resort in model optimization
“Well, kernel is a last resort. So first I go, oh, another kernel. And I try and find some way to go around it.”
First-principles GPU kernel modeling was beyond AI capabilities before OpenAI o1
“O1's like the initial thinking models were a big deal when I was doing like core academic, like how do I create a performance model for explaining how this kernel behaves? Like, From first principles, that kind of thing was not really in the scope of any model…”
Quentin Anthony achieved the highest productivity speedup in the METR benchmark
“I think you're just kind of noise unless I tell people, okay, I was the one that got the most speed up in the study.”