"AMD processors were instrumental in achieving a new world record," reports Tom's Hardware, "during a recent Ansys Fluent computational fluid dynamics simulation run on the Frontier supercomputer at the Oak Ridge National Laboratory."

The article points out that Frontier was the fastest supercomputer in the world until it was beaten by Lawrence Livermore Lab's El Capitan — with both computers powered by AMD GPUs: According to a press release by Ansys, it ran a 2.2-billion-cell axial turbine simulation for Baker Hughes, an energy technology company, testing its next-generation gas turbines aimed at increasing efficiency. The simulation previously took 38.5 hours to complete on 3,700 CPU cores. By using 1,024 AMD Instinct MI250X accelerators paired with AMD EPYC CPUs in Frontier, the simulation time was slashed to 1.5 hours. This is more than 25 times faster, allowing the company to see the impact of the changes it makes on designs much more quickly...

Given those numbers, the Ansys Fluent CFD simulator apparently only used a fraction of the power available on Frontier. That means it has the potential to run even faster if it can utilize all the available accelerators on the supercomputer. It also shows that, despite Nvidia's market dominance in AI GPUs, AMD remains a formidable competitor, with its CPUs and GPUs serving as the brains of some of the fastest supercomputers on Earth.

Here's an update from the Wall Street Journal about a "widespread series of alarming cyberattacks on U.S. infrastructure."

China was behind it, "Chinese officials acknowledged in a secret December meeting... according to people familiar with the matter..." The Chinese delegation linked years of intrusions into computer networks at U.S. ports, water utilities, airports and other targets, to increasing U.S. policy support for Taiwan, the people, who declined to be named, said... U.S. officials went public last year with unusually dire warnings about the uncovered Volt Typhoon effort. They publicly attributed it to Beijing trying to get a foothold in U.S. computer networks so its army could quickly detonate damaging cyberattacks during a future conflict. [American officials at the meeting perceived the remarks as "intended to scare the U.S. from involving itself if a conflict erupts in the Taiwan Strait."]

The Chinese official's remarks at the December meeting were indirect and somewhat ambiguous, but most of the American delegation in the room interpreted it as a tacit admission and a warning to the U.S. about Taiwan, a former U.S. official familiar with the meeting said... In a statement, the State Department didn't comment on the meeting but said the U.S. had made clear to Beijing it will "take actions in response to Chinese malicious cyber activity," describing the hacking as "some of the gravest and most persistent threats to U.S. national security...."

A Chinese official would likely only acknowledge the intrusions even in a private setting if instructed to do so by the top levels of Xi's government, said Dakota Cary, a China expert at the cybersecurity firm SentinelOne. The tacit admission is significant, he said, because it may reflect a view in Beijing that the likeliest military conflict with the U.S. would be over Taiwan and that a more direct signal about the stakes of involvement needed to be sent to the Trump administration. "China wants U.S. officials to know that, yes, they do have this capability, and they are willing to use it," Cary said.
The article notes that top U.S. officials have said America's Defense Department "will pursue more offensive cyber strikes against China."

But it adds that the administration "also plans to dismiss hundreds of cybersecurity workers in sweeping job cuts and last week fired the director of the National Security Agency and his deputy, fanning concerns from some intelligence officials and lawmakers that the government would be weakened in defending against the attacks."

A former Facebook employee/whistleblower alleges Meta's AI model Lllama was used to help DeepSeek.

The whistleblower — former Facebook director of global policy Sarah Wynn-Williams — testified before U.S. Senators on Wednesday. CBS News found this earlier response from Meta: In a statement last year on Llama, Meta spokesperson Andy Stone wrote, "The alleged role of a single and outdated version of an American open-source model is irrelevant when we know China is already investing over 1T to surpass the US technologically, and Chinese tech companies are releasing their own open AI models as fast, or faster, than US ones."

Wynn-Williams encouraged senators to continue investigating Meta's role in the development of artificial intelligence in China, as they continue their probe into the social media company founded by Zuckerberg. "The greatest trick Mark Zuckerberg ever pulled was wrapping the American flag around himself and calling himself a patriot and saying he didn't offer services in China, while he spent the last decade building an $18 billion business there," she said.
The testimony also left some of the lawmakers skeptical of Zuckerberg's commitment to free speech after the whistleblower also alleged Facebook worked "hand in glove" with the Chinese government to censor its platforms: In her almost seven years with the company, Wynn-Williams told the panel she witnessed the company provide "custom built censorship tools" for the Chinese Communist Party. She said a Chinese dissident living in the United States was removed from Facebook in 2017 after pressure from Chinese officials. Facebook said at the time it took action against the regime critic, Guo Wengui, for sharing someone else's personal information. Wynn-Williams described the use of a "virality counter" that flagged posts with over 10,000 views for review by a "chief editor," which Democratic Sen. Richard Blumenthal of Connecticut called "an Orwellian censor." These "virality counters" were used not only in Mainland China, but also in Hong Kong and Taiwan, according to Wynn-Williams's testimony.

Wynn-Williams also told senators Chinese officials could "potentially access" the data of American users.

Facebook Marketplace has emerged as the dominant feature within the social media platform, amassing 1.2 billion monthly active buyers by 2023 and overtaking eBay as a peer-to-peer selling platform. According to recent data, approximately 16 percent of Facebook's monthly active users now access the site exclusively to participate in Marketplace.

The feature's growth accelerated following the pandemic's supply chain disruptions and subsequent inflation, which increased demand for used goods. Facebook reports that Marketplace is attracting younger demographics who have otherwise abandoned the platform's social features.

This shift represents a fundamental transformation of Facebook's core function from "digital connector" to "digital bazaar," with the platform increasingly hosting transactions rather than social connections.

Adobe has deleted all its posts on Twitter-alternative Bluesky after a disastrous April 8 debut that drew over 1,600 angry comments from digital creators. The software giant's innocuous first post asking "What's fueling your creativity right now?" triggered immediate criticism targeting Adobe's controversial subscription model, continual price increases, and AI implementation.

"Y'all keep raising your prices for a product that keeps getting worse," wrote one user, while another referenced Adobe's "subscription model" with "I assume you'll be charging us monthly to read your posts." Recent price hikes have been substantial, with one commenter reporting a 53.88% increase from CDN$14.68 to CDN$22.59 monthly.

The International Civil Aviation Organization plans to eliminate boarding passes and check-ins within three years through a new "digital travel credential" system. Passengers will store passport data on their phones and use facial recognition to move through airports, while airlines will automatically detect arrivals via biometric scanning.

The system will dynamically update "journey passes" for flight changes and delays, potentially streamlining connections. "The last upgrade of great scale was the adoption of e-ticketing in the early 2000s," said Valerie Viale from travel technology company Amadeus, who noted passenger data will be deleted within 15 seconds at each checkpoint to address privacy concerns.

Military chiefs at Nato have been warned of global internet blackouts following a string of suspected Russian attacks on subsea cables. From a report: Telecoms companies including Vodafone, O2 owner Telefonica and Orange have written to UK, EU and Nato officials warning that a rise in sabotage incidents was putting critical services at risk. In an open letter, they wrote: "The repercussions of damage to subsea cables extend far beyond Europe, potentially affecting global internet and power infrastructure, international communications, financial transactions and critical services worldwide."

It comes after a spike in incidents relating to fibre optic cables on seabeds that carry huge volumes of data, voice and internet traffic between countries. More than 500 cables carry around 95pc of all international data, while their remote location makes them difficult and costly to monitor. At least 11 subsea cables have been damaged in the Baltic Sea since October 2023 and similar outages have been reported in the North Sea.

The incidents have fuelled fears of sabotage by hostile actors, with more than 50 Russian ships observed in areas of high cable density in the Baltic Sea. The UK is monitoring the Russian spy ship Yantar amid concerns that it is mapping critical underwater infrastructure. Concerns have also been raised about Chinese sabotage following a number of incidents around Taiwan.

Meta says in its Llama 4 release announcement that it's specifically addressing "left-leaning" political bias in its AI model, distinguishing this effort from traditional bias concerns around race, gender, and nationality that researchers have long documented. "Our goal is to remove bias from our AI models and to make sure that Llama can understand and articulate both sides of a contentious issue," the company said.

"All leading LLMs have had issues with bias -- specifically, they historically have leaned left," Meta stated, framing AI bias primarily as a political problem. The company claims Llama 4 is "dramatically more balanced" in handling sensitive topics and touts its lack of "strong political lean" compared to competitors.

Meta is partnering with Blumhouse to launch "Movie Mate" technology that encourages moviegoers to use their phones during theatrical screenings, beginning with an April 30 showing of "Megan" at Blumhouse's "Halfway to Halloween Film Festival." According to Variety, the system enables viewers to chat with a Megan-themed AI chatbot, answer trivia questions, and access behind-the-scenes information while watching the film in theaters.

An anonymous reader shares a report: Meta's latest whistleblower, Sarah Wynn-Williams, got a warm reception on Capitol Hill Wednesday, as the Careless People author who the company has fought to silence described the company's chief executive as someone willing to shapeshift into whatever gets him closest to power. The message was one that lawmakers on the Senate Judiciary subcommittee on crime and counterterrorism were very open to. Their responses underscore that amid CEO Mark Zuckerberg's latest pivot in cozying up to the right, his perception in Washington has not yet totally changed, even as he reportedly lobbies President Donald Trump to drop the government's antitrust case against the company.

"He's recently tried a reinvention in which he is now a great advocate of free speech, after being an advocate of censorship in China and in this country for years," subcommittee Chair Josh Hawley (R-MO) said, pointing to longtime conservative allegations that Meta has suppressed things like vaccine skepticism and the Hunter Biden laptop story. "Now that's all wiped away. Now he's on Joe Rogan and says that he is Mr. Free Speech, he is Mr. MAGA, he's a whole new man, and his company, they're a whole new company. Do you buy this latest reinvention of Mark Zuckerberg?"

"If he is such a fan of freedom of speech, why is he trying to silence me?" Wynn-Williams asked in response. Meta convinced an arbitrator to order her to stop making disparaging statements and halt further publishing and promotion of the book, which details Meta's alleged dealings with the Chinese government and claims of sexual harassment from a top executive.

The U.S. Army told the government it had a lot of success using AI to "process targets" during a recent deployment. It said that it had used AI systems to identify targets at a rate of 55 per day but could get that number up to 5,000 a day with "advanced artificial intelligence tools in the future." 404 Media: The line comes from a new report from the Government Accountability Office -- a nonpartisan watchdog group that investigates the federal government. The report is titled "Defense Command and Control" and is, in part, about the Pentagon's recent push to integrate AI systems into its workflow.

Across the government, and especially in the military, there has been a push to add or incorporate AI into various systems. The pitch here is that AI systems would help the Pentagon ID targets on the battlefield and allow those systems to help determine who lives and who dies. The Ukrainian and Israeli military are already using similar systems but the practice is fraught and controversial.

The battle for AI talent is so hot that Google would rather give some employees a paid one-year vacation than let them work for a competitor. From a report: Some Google DeepMind staff in the UK are subject to noncompete agreements that prevent them from working for a competitor for up to 12 months after they finish work at Google, according to four former employees with direct knowledge of the matter who asked to remain anonymous because they were not permitted to share these details with the press.

Aggressive noncompetes are one tool tech companies wield to retain a competitive edge in the AI wars, which show no sign of slowing down as companies launch new bleeding-edge models and products at a rapid clip. When an employee signs one, they agree not to work for a competing company for a certain period of time. Google DeepMind has put some employees with a noncompete on extended garden leave. These employees are still paid by DeepMind but no longer work for it for the duration of the noncompete agreement.

Several factors, including a DeepMind employee's seniority and how critical their work is to the company, determine the length of noncompete clauses, those people said. Two of the former staffers said six-month noncompetes are common among DeepMind employees, including for individual contributors working on Google's Gemini AI models. There have been cases where more senior researchers have received yearlong stipulations, they said.

Google is opening up its Google Maps Platform data so that cities, developers, and other business decision makers can more easily access information about things like infrastructure and traffic. The Verge: Google is integrating new datasets for Google Maps Platform directly into BigQuery, the tech giant's fully managed data analytics service, for the first time. This should make it easier for people to access data from Google Maps platform products, including Imagery Insights, Roads Management Insights, and Places Insights.

Samsung Electronics and Google Cloud are jointly entering the consumer robotics market with Ballie, a yellow, soccer-ball-shaped robot equipped with a video projector and powered by Google's Gemini AI models. First previewed in 2020, the long-delayed device will finally launch this summer in the US and South Korea. The mobile companion uses small wheels to navigate homes autonomously and integrates with Samsung's SmartThings platform to control smart home devices.

Running on Samsung's Tizen operating system, Ballie can manage calendars, answer questions, handle phone calls, and project video content from services including YouTube and Netflix. Samsung EVP Jay Kim described it as a "completely new Ballie" compared to the 2020 version, with Google Cloud integration being the most significant change. The robot leverages Gemini for understanding commands, searching the web, and processing visual data for navigation, while using Samsung's AI models for accessing personal information.

Shopify CEO Tobi Lutke is changing his company's approach to hiring in the age of AI. Employees will be expected to prove why they "cannot get what they want done using AI" before asking for more headcount and resources, Lutke wrote in a memo to staffers that he posted to X. From a report: "What would this area look like if autonomous AI agents were already part of the team?" Lutke wrote in the memo, which was sent to employees late last month. "This question can lead to really fun discussions and projects." Lutke also said there's a "fundamental expectation" across Shopify that employees embrace AI in their daily work, saying it has been a "multiplier" of productivity for those who have used it.

"I've seen many of these people approach implausible tasks, ones we wouldn't even have chosen to tackle before, with reflexive and brilliant usage of AI to get 100X the work done," Lutke wrote. The company, which sells web-based software that helps online retailers manage sales and run their operations, will factor AI usage into performance reviews, he added.

Micron has informed US customers it will implement surcharges on memory modules and solid-state drives starting Wednesday to offset President Trump's new tariffs, according to Reuters. While semiconductors received exemptions in Trump's recent trade action, memory storage products didn't escape the new duties.

Micron, which manufactures primarily in Asian countries including China and Taiwan, had previously signaled during a March earnings call that tariff costs would be passed to customers.

Meta released two new Llama 4 models over the weekend -- Scout and Maverick -- with claims that Maverick outperforms GPT-4o and Gemini 2.0 Flash on benchmarks. Maverick quickly secured the number-two spot on LMArena, behind only Gemini 2.5 Pro.

Researchers have since discovered that Meta used an "experimental chat version" of Maverick for LMArena testing that was "optimized for conversationality" rather than the publicly available version.

In response, LMArena said "Meta's interpretation of our policy did not match what we expect from model providers" and announced policy updates to prevent similar issues.

In Delhi's Nehru Place and Mumbai's Lamington Road, technicians are creating functional laptops from salvaged parts of multiple discarded devices. These "Frankenstein" machines sell for approximately $110 USD -- a fraction of the $800 price tag for new models. Technicians extract usable components -- motherboards, capacitors, screens, and batteries -- from e-waste sourced locally and from countries like Dubai and China.

"Most people don't care about having the latest model; they just want something that works and won't break the bank," a technician told Verge. This repair ecosystem operates within a larger battle against tech giants pushing planned obsolescence through proprietary designs and restricted parts access. Many technicians source components from Seelampur, India's largest e-waste hub processing 30,000 tonnes daily, though workers there handle toxic materials with minimal protection. "India has always had a repair culture," says Satish Sinha of Toxics Link, "but companies are pushing planned obsolescence, making repairs harder and forcing people to buy new devices."

On Bluesky, the joke's on you if you don't get the joke. The social network has become a "refuge" for those fleeing X and Threads, but its growing pains include a serious case of humor-impairment. When Amy Brown jokingly posted she was "screaming, crying, and throwing up" about price differences between Ohio and California Walgreens, literal-minded users scolded her for exaggerating. Brown, a former Wendy's social media manager who got banned from X after impersonating Elon Musk, puts it simply: "We're both speaking English, but I'm speaking internet."

This clash stems from Bluesky's oddly mixed population: irony-steeped Twitter refugees mingling with earnest Facebook transplants and MSNBC viewers who took the plunge after seeing the platform mentioned on shows like Morning Joe. "It's riff collapse," says cartoonist Mattie Lubchansky, describing how her obviously absurd Oscar post triggered sincere movie recommendations.

An anonymous reader shares a report: Waymo is preparing to use data from its robotaxis, including video from interior cameras tied to rider identities, to train generative AI models, according to an unreleased version of its privacy policy found by researcher Jane Manchun Wong.

The draft language reveals Waymo may also share this data to personalize ads, raising fresh questions about how much of a rider's behavior inside autonomous vehicles could be repurposed for AI training and marketing. The privacy page states: "Waymo may share data to improve and analyze its functionality and to tailor products, services, ads, and offers to your interests. You can opt out of sharing your information with third parties, unless it's necessary to the functioning of the service."