<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: chillee</title><link>https://news.ycombinator.com/user?id=chillee</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 20 Oct 2026 00:59:34 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=chillee" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[New comment by chillee in "Jax's true calling: Ray-Marching renderers on WebGL"]]></title><description><![CDATA[
<p>I'd also note that you can more or less write the same code in PyTorch with torch.vmap</p>
]]></description><pubDate>Thu, 02 Apr 2026 09:46:59 +0000</pubDate><link>https://news.ycombinator.com/item?id=47612155</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=47612155</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=47612155</guid></item><item><title><![CDATA[New comment by chillee in "GPT-5.2 and GPT-5.2-Codex are now 40% faster"]]></title><description><![CDATA[
<p>this is almost certainly not being done on cerebras</p>
]]></description><pubDate>Wed, 04 Feb 2026 00:54:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=46879847</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=46879847</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=46879847</guid></item><item><title><![CDATA[New comment by chillee in "Helion: A high-level DSL for performant and portable ML kernels"]]></title><description><![CDATA[
<p>I think unlike Gluon/CuTe/ThunderKittens (which distinguish themselves from Triton by being lower level giving you more control, thus being less performance portable and harder to write), Helion distinguishes itself from Triton by being <i>higher level</i> and easier to write.<p>IMO, this is something that makes sense for PyTorch to release, as "neutral ground" in the industry.</p>
]]></description><pubDate>Sat, 08 Nov 2025 03:17:23 +0000</pubDate><link>https://news.ycombinator.com/item?id=45853813</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45853813</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45853813</guid></item><item><title><![CDATA[New comment by chillee in "Helion: A high-level DSL for performant and portable ML kernels"]]></title><description><![CDATA[
<p>What's the point of Triton compared to Gluon? What's the point of PyTorch compared to Triton?<p>One of the main values of Triton is that it significantly expanded the scope of folks who can write kernels - I think Helion could expand the scope even more.</p>
]]></description><pubDate>Sat, 08 Nov 2025 02:28:07 +0000</pubDate><link>https://news.ycombinator.com/item?id=45853538</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45853538</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45853538</guid></item><item><title><![CDATA[New comment by chillee in "Helion: A high-level DSL for performant and portable ML kernels"]]></title><description><![CDATA[
<p>If you think of Triton as a "baseline", most other DSLs are lower-level than Triton, whereas this is higher-level.</p>
]]></description><pubDate>Sat, 08 Nov 2025 02:23:49 +0000</pubDate><link>https://news.ycombinator.com/item?id=45853515</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45853515</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45853515</guid></item><item><title><![CDATA[New comment by chillee in "Amazon has mostly sat out the AI talent war"]]></title><description><![CDATA[
<p>Their gross profits are very high even though they're not making operating profit.</p>
]]></description><pubDate>Tue, 02 Sep 2025 02:32:12 +0000</pubDate><link>https://news.ycombinator.com/item?id=45098536</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45098536</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45098536</guid></item><item><title><![CDATA[New comment by chillee in "Amazon has mostly sat out the AI talent war"]]></title><description><![CDATA[
<p>Clearly not true anymore given OpenAI and Anthropic's revenue growth.</p>
]]></description><pubDate>Tue, 02 Sep 2025 00:45:36 +0000</pubDate><link>https://news.ycombinator.com/item?id=45097972</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45097972</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45097972</guid></item><item><title><![CDATA[New comment by chillee in "Are OpenAI and Anthropic losing money on inference?"]]></title><description><![CDATA[
<p>The 32 parallel sequences is also arbitrary and significantly changes your conclusions. For example, if they run with 256 parallel sequences then that would result in a 8x cheaper factor in your calculations for both prefill and decode.<p>The component about requiring long context lengths to be compute-bound for attention is also quite misleading.</p>
]]></description><pubDate>Thu, 28 Aug 2025 22:51:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=45057928</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45057928</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45057928</guid></item><item><title><![CDATA[New comment by chillee in "Are OpenAI and Anthropic losing money on inference?"]]></title><description><![CDATA[
<p>No. In some sense, the article comes to the right conclusion haha. But it's probably >100x off on its central premise about output tokens costing more than input.</p>
]]></description><pubDate>Thu, 28 Aug 2025 22:16:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=45057664</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45057664</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45057664</guid></item><item><title><![CDATA[New comment by chillee in "Are OpenAI and Anthropic losing money on inference?"]]></title><description><![CDATA[
<p>This article's math is wrong on many fundamental levels. One of the most obvious ones is that prefill is <i>nowhere near</i> bandwidth bound.<p>If you compute out the MFU the author gets it's 1.44 million input tokens per second * 37 billion active params * 2 (FMA) / 8 [GPUs per instance] = 13 Petaflops per second. That's approximately 7x <i>absolutely peak</i> FLOPS on the hardware. Obviously, that's impossible.<p>There's many other issues with this article, such as assuming only 32 concurrent requests(?), only 8 GPUs per instance as opposed to the more efficient/standard prefill-decode disagg setups, assuming that attention computation is the main thing that makes models compute-bound, etc. It's a bit of an indictment of HN's understanding of LLMs that most people are bringing up issues with the article that aren't any of the fundamental misunderstandings here.</p>
]]></description><pubDate>Thu, 28 Aug 2025 21:45:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=45057409</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=45057409</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=45057409</guid></item><item><title><![CDATA[New comment by chillee in "Tokasaurus: An LLM inference engine for high-throughput workloads"]]></title><description><![CDATA[
<p>I mean, vllm and sglang are both "pure python" essentially as well. But yeah, in ML you rarely <i>require</i> C++ to get good performance for most of the systems people are writing.</p>
]]></description><pubDate>Fri, 06 Jun 2025 04:49:00 +0000</pubDate><link>https://news.ycombinator.com/item?id=44197894</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=44197894</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=44197894</guid></item><item><title><![CDATA[New comment by chillee in "Blender-made movie Flow takes Oscar"]]></title><description><![CDATA[
<p>A couple things:<p>1. The academy has had a significant increase of young voters in the past 10 years or so. Generally speaking, young voters are more likely to take animation as a "serious" medium.<p>2. These interviews were always somewhat overstated. Of course some voters have stupid rationales, but I don't think this dominates the academy.<p>3. Disney's Inside Out 2 was nowhere close to winning the award this year - Flow's biggest competition was The Wild Robot, which did gross far more than Inside Out 2, but far below Inside Out 2.<p>If you look at the past couple years, The Boy and the Heron (Studio Ghibli) won over Across the Spider-Verse (with Pixar's movie Elemental nowhere close) in 2023, Guillermo del Toro's Pinocchio won over Across the Spider-Verse (with Pixar's movie Turning Red nowhere close) in 2022, etc.<p>I'm curious what year you're thinking about above. Perhaps Toy Story 4 over Klaus in 2019?</p>
]]></description><pubDate>Mon, 03 Mar 2025 06:33:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=43238926</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=43238926</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=43238926</guid></item><item><title><![CDATA[New comment by chillee in "Amidst the noise and haste, Google has successfully pulled a SpaceX"]]></title><description><![CDATA[
<p><a href="https://www.theinformation.com/articles/to-reduce-ai-costs-google-wants-to-ditch-broadcom-as-its-tpu-server-chip-supplier?rc=rgbphv" rel="nofollow">https://www.theinformation.com/articles/to-reduce-ai-costs-g...</a><p>Which takes it from<p>> Broadcom generates a 70% profit margin from its work on TPUs, said a person with direct knowledge of the internal analysis. SemiAnalysis, a chip research firm, earlier reported that figure.<p><a href="https://semianalysis.com/2023/08/30/broadcoms-google-tpu-revenue-explosion/" rel="nofollow">https://semianalysis.com/2023/08/30/broadcoms-google-tpu-rev...</a></p>
]]></description><pubDate>Tue, 07 Jan 2025 03:32:03 +0000</pubDate><link>https://news.ycombinator.com/item?id=42618869</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=42618869</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42618869</guid></item><item><title><![CDATA[New comment by chillee in "Amidst the Noise and Haste, Google Has Successfully Pulled a SpaceX"]]></title><description><![CDATA[
<p>One of the big things this article misses is that Google pays Broadcom a significant amount for the actual chip design, also around a 70% margin.<p>Google certainly has infra/cost advantages, but it's nowhere near 10x.</p>
]]></description><pubDate>Tue, 07 Jan 2025 03:11:15 +0000</pubDate><link>https://news.ycombinator.com/item?id=42618755</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=42618755</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42618755</guid></item><item><title><![CDATA[New comment by chillee in "Fast LLM Inference From Scratch (using CUDA)"]]></title><description><![CDATA[
<p>For latency-bound inference (i.e. one request) you don't need tensor-cores since all your operations are just matrix vector multiplications.</p>
]]></description><pubDate>Sun, 15 Dec 2024 19:51:33 +0000</pubDate><link>https://news.ycombinator.com/item?id=42425512</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=42425512</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42425512</guid></item><item><title><![CDATA[New comment by chillee in "The GPU is not always faster"]]></title><description><![CDATA[
<p>The big issue with Strassen isn't performance - it's numerical stability.</p>
]]></description><pubDate>Wed, 11 Dec 2024 20:11:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=42392339</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=42392339</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42392339</guid></item><item><title><![CDATA[New comment by chillee in "What Shapes Do Matrix Multiplications Like?"]]></title><description><![CDATA[
<p>Well, that'll help with a lot :) But dealing with wave quantization requires dimensions that aren't neceessarily a multiple of 2, and often are a multiple of the number of SMs on a GPU (i.e. 132 on an H100)</p>
]]></description><pubDate>Wed, 06 Nov 2024 18:19:05 +0000</pubDate><link>https://news.ycombinator.com/item?id=42066711</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=42066711</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=42066711</guid></item><item><title><![CDATA[New comment by chillee in "Computer use, a new Claude 3.5 Sonnet, and Claude 3.5 Haiku"]]></title><description><![CDATA[
<p>It's very much in the "worse is better" camp.</p>
]]></description><pubDate>Tue, 22 Oct 2024 17:38:47 +0000</pubDate><link>https://news.ycombinator.com/item?id=41916669</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=41916669</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41916669</guid></item><item><title><![CDATA[New comment by chillee in "Conway's Gradient of Life"]]></title><description><![CDATA[
<p>It's always fun when people use autodiff in packages like PyTorch for completely unrelated usecases :)</p>
]]></description><pubDate>Sat, 12 Oct 2024 00:03:28 +0000</pubDate><link>https://news.ycombinator.com/item?id=41815162</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=41815162</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41815162</guid></item><item><title><![CDATA[New comment by chillee in "We fine-tuned Llama 405B on AMD GPUs"]]></title><description><![CDATA[
<p>> it wouldn’t use functions like these and the generated comparable code would be on-pare performance wise<p>Perhaps if XLA generated all functions from scratch, this would be more compelling. But XLA relies very heavily on pattern-matching to common library functions (e.g. CuDNN), and these patterns will certainly work better on Nvidia GPUs than AMD GPUs.<p>In this way, I actually think explicitly calling the common library functions is actually much <i>more</i> transparent.</p>
]]></description><pubDate>Tue, 24 Sep 2024 21:01:31 +0000</pubDate><link>https://news.ycombinator.com/item?id=41640856</link><dc:creator>chillee</dc:creator><comments>https://news.ycombinator.com/item?id=41640856</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=41640856</guid></item></channel></rss>