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zymtrace: Frictionless GPU Profiling to Unlock Full Potential

2025-05-04

zymtrace: Frictionless GPU Profiling to Unlock Full Potential

zymtrace is a lightweight, production-grade, continuous GPU profiler that seamlessly traces performance bottlenecks—kernel stalls, memory contention, scheduling delays—directly back to their source in PyTorch code, CUDA kernels, native functions, or scheduler threads. Unlike existing solutions, zymtrace provides whole-system visibility, correlating GPU traces with the CPU code paths that triggered them. This allows AI/ML engineers to optimize CUDA kernel launches, determine optimal batch sizes, and address low GPU utilization, maximizing GPU performance and reducing costs.

(www.zymtrace.com)

Development GPU profiling

3D Printing Design Guide: Beyond the Basics, Deep Dive into Printability

2025-05-04

3D Printing Design Guide: Beyond the Basics, Deep Dive into Printability

This blog post delves deep into the design philosophy of 3D printing, going beyond basic knowledge to cover strength, tolerances, process optimization, functional integration, machine elements, appearance, and vase mode design. The author summarizes numerous rules of thumb, illustrated with practical examples and images, such as choosing optimal print orientation for strength, using chamfers and fillets to improve tolerances and surface finish, and avoiding support structures. The post also details various functional integration techniques including zip tie channels, flexures, clips, living hinges, embedded bearings, and print-in-place mechanisms. Furthermore, it explores threaded connections, embedded hardware, and fabric printing. This is a valuable 3D printing design guide suitable for engineers and hobbyists with some 3D printing experience.

(blog.rahix.de)

Development

Compiler Optimization & Load-Store Conflicts: A Performance Cliffhanger

2025-05-04

This article details an unexpected performance issue: a simple geometry decoder shows massive performance variations across different compiler versions. The root cause? A little-known microarchitectural detail: load-store conflicts. GCC-14 cleverly vectorized the code, resulting in a performance boost. However, GCC-15 regressed significantly due to altered optimization strategies, leading to frequent load-store conflicts. Clang, surprisingly, excelled on ARM architectures by leveraging the load-store characteristics. This highlights that compiler optimization isn't a silver bullet; close attention to generated code and underlying hardware microarchitecture is crucial.

(zeux.io)

Development load-store conflicts performance tuning

Feather: A Lightweight, DX-First Web Framework for Rust

2025-05-04

Feather: A Lightweight, DX-First Web Framework for Rust

Feather is a lightweight web framework for Rust, inspired by the simplicity of Express.js but built for Rust's performance and safety. It features a middleware-first architecture, making route handlers, auth, and logging all composable. Recent versions include a Context API for easy state management. Feather boasts a minimal, ergonomic API, is modular and extensible, and offers great tooling out of the box. Essentially, Feather aims to bring the ease of Express.js to the Rust ecosystem without compromising performance or safety.

(github.com)

Development

FSF's 40th Anniversary Hackathon: A Global Online Event

2025-05-04

To celebrate its 40th anniversary, the Free Software Foundation (FSF) is hosting a three-day global online hackathon, inviting free software projects and individual contributors to improve important libre software. All free software projects, regardless of affiliation or license, are welcome. The event runs November 21-23, 2025, with project submissions due May 27th. Prizes will be awarded to the projects and contributors making the most noteworthy contributions.

(www.fsf.org)

Development

A Dummy's Guide to Modern LLM Sampling

2025-05-04

A Dummy's Guide to Modern LLM Sampling

This technical article provides a comprehensive guide to sampling methods used in Large Language Model (LLM) text generation. It starts by explaining why LLMs use sub-word tokenization instead of words or letters, then delves into various sampling algorithms, including temperature sampling, penalty methods (Presence, Frequency, Repetition, DRY), Top-K, Top-P, Min-P, Top-A, XTC, Top-N-Sigma, Tail-Free Sampling, Eta Cutoff, Epsilon Cutoff, Locally Typical Sampling, Quadratic Sampling, and Mirostat. Each algorithm is explained with pseudo-code and illustrations. Finally, it discusses the order of sampling methods and their interactions, highlighting the significant impact of different ordering on the final output.

(rentry.co)

AI Text Generation Sampling Algorithms

Hightouch is Hiring a Machine Learning Engineer to Build its AI Decisioning Platform

2025-05-04

Hightouch is Hiring a Machine Learning Engineer to Build its AI Decisioning Platform

Hightouch, a $1.2B valued CDP company, is hiring a machine learning engineer to enhance its data activation products. They're building an AI decisioning platform leveraging machine learning to help customers personalize messaging, automate experimentation, predict audiences, generate content, and optimize budgets. The role involves building comprehensive solutions from scratch, encompassing customer research, problem definition, predictive modeling, and more. The salary range is $200,000 - $260,000 USD per year.

(www.ycombinator.com)

AI AI Decisioning Data Activation

Zuckerberg's Norwegian Superyacht Adventure: Heli-Skiing the Fjords

2025-05-04

Zuckerberg's Norwegian Superyacht Adventure: Heli-Skiing the Fjords

Meta CEO Mark Zuckerberg embarked on a lavish heli-skiing adventure to Norway's fjords, utilizing his two superyachts, the Launchpad and the Wingman, as a floating base. To circumvent Norway's strict helicopter landing regulations, he cleverly used his yacht's helipad, skiing remote peaks. This extravagant trip highlights Zuckerberg's adventurous spirit and logistical capabilities, but also sparks debate about sustainability and the environmental impact of such luxury, alongside broader questions of wealth inequality.

(www.sustainability-times.com)

Misc Superyacht Norway

Sanctum: A Secure and Auditable VPN Daemon

2025-05-04

Sanctum: A Secure and Auditable VPN Daemon

Sanctum is a small, reviewable, capable, pq-safe, and fully privilege-separated VPN daemon for OpenBSD, Linux, and macOS. Its privilege separation design ensures that critical assets are isolated from processes interacting with the internet or handling non-cryptographic tasks. Sanctum also offers peer-to-peer tunnels that traverse NAT, enabling direct device communication without needing to open firewall ports or configure forwarding rules. The system uses multiple processes, each sandboxed and running as a separate user for enhanced security. Sanctum supports various ciphers and uses a hybrid key exchange for post-quantum security.

(github.com)

Development Post-Quantum Cryptography

EZ-TRAK: Open-Source Satellite Tracking Suite

2025-05-04

EZ-TRAK: Open-Source Satellite Tracking Suite

EZ-TRAK is an open-source satellite tracking suite designed for amateur radio operators, weather satellite enthusiasts, and educational purposes. It uses a portable satellite dish antenna and a BLE device to track satellites in real-time, providing azimuth and elevation data for optimal antenna positioning. Features include a graphical user interface, pass prediction, data recording, and support for multiple data sources. Detailed setup and usage instructions are provided.

(github.com)

Tech satellite tracking

Nirvana's Nevermind: The Unexpected Success of an Album Built on Major Chords

2025-05-04

In 1991, Nirvana's *Nevermind* unexpectedly became a critical and commercial sensation. Its raw guitars and unapologetic sound captivated listeners. Over 30 years later, a re-examination reveals a key ingredient: the almost exclusive use of major chords, eschewing minor chords and complex chord progressions (7th, 2nd, 4th, 6th, 9th, dim, aug). This created a unique harmonic language, bold and innovative for its time. Interestingly, Kurt Cobain seemingly worked intuitively, unaware of any musical rules he was following. This demonstrates the power of raw emotion and instinct transcending technical proficiency.

(farina00.github.io)

Game Nirvana Musical Analysis

ViTs vs. CNNs: Speed Benchmarks Shatter Resolution Myths

2025-05-04

This article challenges the common belief that Vision Transformers (ViTs) are inefficient for high-resolution image processing. Through rigorous benchmarking across various GPUs, the author compares the inference speed, FLOPs, and memory usage of ViTs and Convolutional Neural Networks (CNNs). Results show ViTs perform exceptionally well up to and including 1024x1024 pixels, often outperforming CNNs on modern hardware in both speed and memory efficiency. The author also argues against an overemphasis on high resolution, suggesting that lower resolutions are often sufficient. Finally, the article introduces local attention mechanisms, further enhancing ViT efficiency at higher resolutions.

(lucasb.eyer.be)

AI

Cjam: A Lightweight MP3 Editor for Windows

2025-05-04

Cjam is a lightweight MP3 editing software for Windows PCs. Import MP3 files via drag-and-drop, then edit using text commands to cut, join, add fade effects, silent intervals, and more. Fast editing is possible without decoding and re-encoding. It supports MP3, CUE, M3U, and custom Cjam formats. Version 1.9.6.0 (1.31MB) was released May 3, 2025.

(cjmapp.net)

Development MP3 editor Windows software

Linux io_uring: A Blind Spot for Antivirus?

2025-05-04

Linux io_uring: A Blind Spot for Antivirus?

Security firm ARMO has revealed a vulnerability in Linux's io_uring interface, allowing malware to bypass detection by some antivirus and endpoint protection tools. io_uring enables applications to perform I/O operations without traditional system calls, evading syscall-based monitoring. ARMO's proof-of-concept, Curing, successfully evaded detection by Falco, Tetragon, and Microsoft Defender in default configurations. This vulnerability potentially affects tens of thousands of Linux servers. While vendors acknowledge the issue and work on fixes, Google has already disabled or restricted io_uring in ChromeOS and Android after significant bug bounty payouts related to io_uring flaws.

(www.theregister.com)

Tech antivirus

Codd's Cellular Automaton: A Simpler Self-Replicating Machine

2025-05-04

Codd's Cellular Automaton: A Simpler Self-Replicating Machine

In 1968, British computer scientist Edgar F. Codd devised a cellular automaton (CA) with only 8 states, simplifying von Neumann's 29-state self-replicating machine. Codd demonstrated the possibility of a self-replicating machine within his CA, but a complete implementation wasn't achieved until 2009 by Tim Hutton. Codd's work spurred further research into the necessary logical organization for self-replication in automata, inspiring later refinements by researchers like Devore and Langton, leading to less complex self-replicating designs.

(en.wikipedia.org)

AI cellular automaton von Neumann

TScale: Training LLMs on Consumer Hardware

2025-05-04

TScale: Training LLMs on Consumer Hardware

TScale is a transformer model training and inference framework written in C++ and CUDA, designed to run on consumer-grade hardware. It achieves significant cost and time reductions through optimized architecture, low-precision computation (fp8 and int8), CPU offloading, and synchronous and asynchronous distributed training. Even a 1T parameter model becomes tractable with clever indexing techniques, enabling training on typical home computers. TScale demonstrates immense potential in lowering the barrier to entry for LLM training.

(github.com)

AI Distributed Training Low-Precision Computing

EEG-Guided Anesthesia Significantly Reduces Anesthetic Use in Pediatric Surgery

2025-05-04

EEG-Guided Anesthesia Significantly Reduces Anesthetic Use in Pediatric Surgery

A randomized controlled clinical trial in Japan involving over 170 children aged 1-6 undergoing surgery demonstrates that using electroencephalogram (EEG) to monitor unconsciousness allows anesthesiologists to significantly reduce anesthesia dosage. Patients experienced faster recovery, a lower incidence of post-operative delirium, and shorter times for extubation, emergence from anesthesia, and post-acute care discharge. This EEG-guided approach not only improves patient outcomes but also reduces healthcare costs and the environmental impact of anesthetic gases like sevoflurane. The study validates the use of brainwave monitoring during surgery to optimize anesthesia delivery and improve patient care.

(news.mit.edu)

Tech Anesthesia Pediatric Surgery

Wife Breaks Tetris World Record in a 'Bizarro World' Arcade

2025-05-04

The author's wife unexpectedly attempts to break the world record for Game Boy Tetris. At a classic gaming tournament, she surpasses the existing record of 327 lines, ultimately achieving an astounding 841 lines, making her the new world record holder. The event is filled with unexpected twists, showcasing not only her exceptional gaming skills but also the controversies and intricacies surrounding video game record verification.

(archive.boston.com)

Game World Record

sxwm: Minimal, Fast, Configurable Tiling Window Manager for X11

2025-05-04

sxwm: Minimal, Fast, Configurable Tiling Window Manager for X11

sxwm is a lightweight X11 tiling window manager prioritizing minimalism, speed, and configurability. It seamlessly switches between tiling and floating layouts, boasts 9 workspaces, and features a user-friendly configuration file (sxwmrc) requiring no C programming knowledge. Supporting mouse interactions, multi-monitor setups, and integration with tools like sxbar, sxwm delivers a highly efficient and responsive window management experience. Its key strengths lie in its incredibly low resource usage and blazing-fast performance.

(github.com)

Development

Resurfaced: Niklaus Wirth's Modula-2 Compiler Source Code

2025-05-04

The source code for Niklaus Wirth's influential Modula-2 compiler, including compilers, operating systems, and related tools for the Lilith workstation and its adaptation for the IBM-PC (M2M-PC), has been made publicly available. These long-lost codes, including multiple versions from early multi-pass to later single-pass compilers and a Macintosh port, were rediscovered by Jos Dreesen, creator of the Lilith emulator EmuLith. This release offers a valuable glimpse into compiler design history and a rich learning resource for developers.

(astrobe.com)

Development

Late-Night Hotline: A Software Engineering Student and a Coincidence of Fate

2025-05-04

Late-Night Hotline: A Software Engineering Student and a Coincidence of Fate

On her last night working a university hotline, a soon-to-graduate software engineering student, Cora, recounts a memorable call. Two years prior, she answered a call from an elderly gentleman who asked her to look up the birthdays of several celebrities. During the conversation, he deduced from Cora's birthday that she was better suited for a people-oriented career than software engineering. Cora admits this aligns with her long-held desire to help vulnerable people, though she currently needs a job. The story highlights the subtle connections and hints of fate behind seemingly random phone calls.

(oxfordamerican.org)

Misc fate coincidence

Firefox on the Brink: Could Antitrust Action Kill the Browser?

2025-05-04

Firefox on the Brink: Could Antitrust Action Kill the Browser?

Mozilla CFO Eric Muhlheim testified that implementing the Department of Justice's proposals to curb Google's search monopoly could put Firefox out of business. Google's deal to be Firefox's default search engine accounts for roughly 85% of Mozilla's revenue. Losing this revenue would force significant cuts and could lead to Firefox's demise. Muhlheim argued that while the DOJ aims to foster competition, the short-term impact could be devastating for Firefox, potentially even strengthening Google's dominance.

(www.theverge.com)

Tech

Webb Telescope Captures Gigantic Galaxy Cluster

2025-05-04

Webb Telescope Captures Gigantic Galaxy Cluster

The James Webb Space Telescope has captured a breathtaking image of thousands of galaxies, focusing on a massive galaxy cluster. This cluster, located in the COSMOS-Web field, is incredibly large and detailed. Combining Webb's infrared imagery with data from Hubble, XMM-Newton, and Chandra X-ray Observatory reveals the presence of hot gas within the cluster and the complexities of galaxy evolution. The image not only showcases the beauty of the cosmos but also provides invaluable data for studying the formation and evolution of galaxy clusters.

(www.esa.int)

Tech James Webb Telescope Galaxy Cluster

Voxdazz: Hilarious AI Celebrity Voices Bring the Laughs

2025-05-04

Voxdazz is an AI voice generator that's winning users over with its lifelike celebrity voices. Reviews praise the smooth, realistic quality, highlighting its use in creating funny videos and impressions of figures like Trump and Biden. Users are impressed by the high audio quality and find it superior to other AI voice options. Get ready for some laughs!

(voxdazz.com)

Game AI voice generator celebrity voices entertainment

LLM-Powered Pong: AI Commentary Takes Center Court

2025-05-04

LLM-Powered Pong: AI Commentary Takes Center Court

xPong is a Pong game with a twist: real-time AI commentary powered by an LLM. After five years of development, the creator leveraged OpenAI's gpt-4o-mini-tts to bring this vision to life. The game simulates 15 years of tournaments, features AI players with varying skill levels, and boasts a three-layered commentary system (opening, in-game, closing) that dynamically adapts to match events. It even draws parallels to past games and adds humorous elements. xPong showcases the exciting potential of LLMs in gaming.

(github.com)

Game

Open Source Switch Bounce Dataset: A Robust Debouncing Solution

2025-05-04

Open Source Switch Bounce Dataset: A Robust Debouncing Solution

This open-source project provides a collection of oscilloscope traces illustrating switch bouncing behavior. It includes various switch types (rocker switches, push buttons, etc.) tested under different actuation forces and speeds. Data is available in CSV and PWL formats for use in designing and simulating debouncing algorithms for circuits and firmware. The dataset includes detailed descriptions of the testing methodology and equipment, making it a valuable resource for engineers.

(github.com)

Hardware switch bounce debouncing open-source dataset

China's Breakthrough: World's First 2D Low-Power GAAFET Transistor

2025-05-04

China's Breakthrough: World's First 2D Low-Power GAAFET Transistor

A Peking University research team published in Nature, announcing the world's first two-dimensional low-power GAAFET transistor. This transistor, based on the novel 2D semiconductor material Bi₂O₂Se, outperforms comparable products from Intel, TSMC, and Samsung. This breakthrough could help China leapfrog in the chip industry, especially given the backdrop of US technological sanctions against China.

(www.tomshardware.com)

Tech GAAFET transistor 2D semiconductor

Elvish: A Powerful Statically-Linked Scripting Language

2025-05-04

Elvish: A Powerful Statically-Linked Scripting Language

Elvish is a powerful scripting language featuring interactive shell capabilities. It's available as a statically linked binary for Linux, BSDs, macOS, and Windows. While pre-1.0, meaning breaking changes are still possible, it's stable enough for both scripting and interactive use. User documentation, including installation, tutorials, and news, is hosted on elv.sh. Development documentation is located in ./docs. A growing ecosystem of Elvish packages and tools also exists.

(github.com)

Development

Flawed AI Forecasting Chart Goes Viral: A Cautionary Tale

2025-05-04

Flawed AI Forecasting Chart Goes Viral: A Cautionary Tale

METR, a non-profit research lab, released a report charting the rapid progress of large language models in software tasks, sparking viral discussions. However, the chart's premise is flawed: it uses human solution time to measure problem difficulty and AI's 50% success rate time as a measure of capability. This ignores the diverse complexities of problems, leading to arbitrary results unsuitable for prediction. While METR's dataset and discussions on current AI limitations are valuable, using the chart for future AI capability predictions is misleading. Its viral spread highlights a tendency to believe what one wants to believe rather than focusing on validity.

(garymarcus.substack.com)

AI

Brian Eno's Art Theory and a Dynamic Model of Democracy

2025-05-04

Brian Eno's Art Theory and a Dynamic Model of Democracy

This article explores how Brian Eno's art theory illuminates a new understanding of democracy's workings. Drawing on Adam Przeworski's theory of democracy, the author argues that its game-theoretic stability model struggles to explain the current decline of democracy. Eno's concept of 'generating variety' in artistic creation provides inspiration for a more dynamic model of democracy. This model emphasizes adaptability and responsiveness to endogenous change, rather than a rigid equilibrium. The article uses Eno's analysis of music composition as an example to illustrate this dynamic model and calls for a greater emphasis on diversity and adaptability within democratic systems to meet the challenges of complex environments.

(www.programmablemutter.com)

Misc democratic theory dynamic systems

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