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Lightmatter’s $400 million round targets AI hyperscalers for photonic data centers

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Launch of photonic calculations Light matter raised $400 million to wide open one among the bottlenecks of contemporary data centers. The company’s optical interconnect layer enables lots of of GPUs to operate synchronously, streamlining the expensive and complicated work of coaching and running artificial intelligence models.

The rise of artificial intelligence and correspondingly massive computing demands have supercharged the data center industry, nevertheless it’s not so simple as plugging in one other thousand GPUs. As high-performance computing experts have known for years, it doesn’t matter how briskly each node on a supercomputer is that if those nodes sit idle half the time waiting for data to reach.

The interconnection layer or layers actually turn racks of CPUs and GPUs into one giant machine – the implication is that the faster the interconnection, the faster the data center. It looks like Lightmatter will certainly construct the fastest interconnection layer using photonic chips it has been working on since 2018.

“Hyperscale people know that if they want a million-node computer, they can’t do it with Cisco switches. Once it leaves the rack, we go from a high-density interconnect to basically a solid chunk,” Nick Harris, the corporate’s CEO and founder, told TechCrunch. (You can see a brief speech he gave summarizing this issue Here.)

He said the state-of-the-art solution is NVLink, specifically the NVL72 platform, which consists of 72 Nvidia Blackwell units interconnected in a rack, allowing for a maximum of 1.4 exaFLOPs with FP4 precision. However, no closet is an island and all of the processing power have to be squeezed through the 7 terabytes of a scale-up network. This seems like loads, and it’s, but the lack to attach these units to one another and to other racks more quickly is one among the principal obstacles to improving efficiency.

“For a million GPUs, you need multiple layers of switches. and that creates a huge delay burden,” Harris said. “You have to go from electrical to optical, electrical to optical… the amount of energy used and the wait time are huge. In larger clusters the situation becomes dramatically worse.”

So what does Lightmatter bring to the table? Fiber. Lots of fibers routed through a purely optical interface. Up to 1.6 terabits per fiber (using multiple colours) and as much as 256 fibers per chip… well, let’s just say 72 GPUs at 7 terabytes starts to sound positively quaint.

“Photonics is coming much faster than people thought — people have been struggling for years to get it off the ground, but we made it happen,” Harris said. “After seven years of absolutely murderous hard work,” he added.

The photonic interconnect currently available from Lightmatter provides 30 terabytes of bandwidth, while rack-mount optical cabling enables 1,024 GPUs to operate synchronously in specially designed racks. In case you are wondering, these two numbers don’t increase by similar aspects because most tasks that will require a network connection to a different rack could be performed on a rack in a cluster with a thousand GPUs. (And anyway, 100 terabits are on the way in which.)

Image credits:Light matter

Harris noted that the market for this is big, with every major data center company, from Microsoft to Amazon and newer entrants like xAI and OpenAI, showing an infinite appetite for computing. “They connect buildings together! I ponder how long they will stick with it,” he said.

Many of those hyperscalers are already customers, though Harris would not name any of them. “Think of Lightmatter a bit like a foundry, like TSMC,” he said. “We don’t pick favorites or associate our name with other people’s brands. We provide them with a roadmap and a platform – we just help them grow the dough.”

However, he added sheepishly, “you can’t quadruple the valuation without using this technology” – perhaps an allusion to OpenAI’s recent funding round that valued the corporate at $157 billion, however the remark could just as easily apply to his own company.

This $400 million D round values ​​it at $4.4 billion, an identical multiple to its mid-2023 valuation that “makes us by far the largest photonics company. That’s great!” Harris said. The round was led by T. Rowe Price Associates, with participation from existing investors Fidelity Management and Research Company and GV.

What’s next? In addition to interconnects, the corporate is developing latest substrates for chips that can enable them to perform much more intimate, when you will, networking tasks using light.

Harris speculated that beyond the interconnect, the principal differentiator in the longer term could be power per chip. “In ten years, everyone will have wafer-sized chips – there is simply no other way to improve the performance of each chip,” he said. Cerebras is, after all, already working on this, even though it stays an open query whether at this stage of technology it’ll be possible to capture the true value of this progress.

But Harris, seeing the chip industry facing a wall, plans to be ready and waiting for the following step. “Ten years from now, we’ll put Moore’s Law together,” he said.

This article was originally published on : techcrunch.com
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Founder Byju says his edtech startup, once worth $22 billion, is now “worth zero”

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Second Byju’s auditor exits in a year amid bankruptcy proceedings

Byju Raveendran, founding father of troubled edtech group Byju’s, admitted Thursday afternoon that he made mistakes, mistimed the market, overestimated growth potential and that his startup, once valued at $22 billion, is now worth “zero.”

Speaking to a gaggle of journalists, Raveendran said the corporate’s aggressive acquisition of over two dozen startups to expand into recent markets turned disastrous when funding dried up in 2022. Byju’s had planned to go public in early 2022, and several other investment bankers had provided the corporate’s valuation. as much as $50 billion, TechCrunch previously reported.

He alleged that most of the greater than 100 investors encouraged him to proceed aggressive expansion into as many as 40 markets. But he added that these very investors chickened out when global markets collapsed after Russia invaded Ukraine, sending the enterprise capital market right into a downward spiral.

Raveendran said lots of its investors “flighted” and the departure of three key backers – Prosus Ventures, Peak XV and Chan Zuckerberg Initiative – from the corporate’s board last 12 months prevented the startup from raising additional funds.

Representatives of the three corporations and auditor Deloitte left the startup’s management board last 12 months, citing management issues.

Byju’s has since entered bankruptcy proceedings, and Raveendran, who now not controls the corporate, said: “It’s worth zero. What valuation are you talking about? It’s worth zero.”

Byju’s, once India’s Most worthy startup, counts BlackRock, UBS, Lightspeed, QIA, Bond, Silver Lake, Sofina, Verlinvest, Tencent, Canada Pension Plan Investment Board, General Atlantic, Tiger Global, Owl Ventures and the World Bank’s IFC amongst its backers. More than $5 billion has been raised up to now.

Raveendran said he hopes his startup will make a comeback. “I have nothing to lose. I come from a small village. I invested everything I had in the startup.”

This article was originally published on : techcrunch.com
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Automattic offered employees another chance to leave – this time with nine months of severance pay

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Matt Mullenweg calls WP Engine a ‘cancer to WordPress’ and urges community to switch providers

Days after 159 people accepted Automattic CEO Matt Mullenweg’s offer of six months of severance pay for employees who wanted to leave, the corporate late October 16 made a brand new offer of nine months of severance pay to anyone who would leave immediately. Employees had 4 hours to determine whether or not they wanted to join the contract.

In a Slack message seen by TechCrunch, Mullenweg wrote that those that accept the offer will lose access not only to Automattic but additionally to WordPress.org. This effectively means that folks leaving won’t give you the chance to contribute to the open source project – not less than under their existing ID. This would also mean that they’d be effectively banned from the WordPress community. The transaction was previously announced by, amongst others, 404 Media.

In addition to being the CEO of Automattic, Mullenweg also owns and controls the open source website WordPress.org.

Mullenweg gave him 4 hours’ notice and told him that those that wanted to accept the offer should send him a non-public message: “I am resigning and would like to take advantage of the 9-month buyout offer.”

“You don’t have to give any reason or anything. I will reply, “Thank you.” Automattic will accept your resignation, you can keep your office belongings and work on your laptop. You will lose access to Automattic and Worg,” Mullenweg said.

He said, “I think some people were sad that they missed the last window,” and that is why he introduced a brand new, short window.

Automattic didn’t comment on this story by press time. It is unclear whether any of the employees took advantage of the brand new offer. According to the corporate’s website, employment currently totals 1,731 people; a couple of hours ago it was 1732.

The WordPress co-founder’s first offer was addressed to individuals who didn’t agree with his views on Automattic’s fight against the hosting provider WP Engine. The first group of people to leave Automattic included several of the corporate’s top employees, including the pinnacle of WordPress.com (Automtic’s business WordPress hosting arm), Daniel Bachhuberhead of programs and co-creator of the experience Naoko Takanochief AI architect, Daniel Walmsleyand Executive Director of WordPress.org Joseph Haden Chomphosa.

The battle began almost a month ago when Mullenweg called WP Engine the “cancer of WordPress” and accused the independent company of not contributing enough to the WordPress open source project. Over the past few weeks, the fight has included stop-and-desist letters, Automattic accusing WP Engine of trademark infringement, a lawsuit filed by WP Engine, and WordPress.org blocking WP Engine’s access and seizing the plugin it maintains.

Earlier this week, TechCrunch reported that Automattic was preparing to defend its trademarks by retaining “nice and not-so-nice” lawyers, according to an internal post published earlier this yr by the corporate’s then-chief legal officer.

This article was originally published on : techcrunch.com
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Feds arrest man who allegedly participated in SEC X account hack, driving up Bitcoin price

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Federal authorities announced the arrest of a man in Alabama on Thursday, accusing him of involvement in the hack of the U.S. Securities and Exchange Commission’s X account earlier this 12 months.

Eric Council Jr. was charged in reference to the January 9 hack of SEC , in response to the press release by the U.S. Attorney’s Office for the District of Columbia.

According to the indictment against the Councilworked with other anonymous co-conspirators to perform a SIM swap on the phone account of a person who had access to SEC X’s account, identified only as “CL.” Authorities alleged that the Council received payments for SIM swaps just like the one which led to the SEC X account hack.

On January 9, the co-conspirator sent the Board instructions on methods to replace the SIM card in the phone of a person with access to X’s SEC account, in addition to that individual’s personal information. Council then went to an AT&T store with a fake CL ID card that he designed and printed himself and claimed to be an FBI agent who had broken his phone and needed a brand new SIM card.

A screenshot of a fake SEC post published by hackers who took control of the @SECGov X account on January 9, 2024.

Council bought a brand new iPhone to switch the SIM card, then used the phone to acquire a reset code for the @SECGov account on . At that time, Council returned the iPhone for money in Birmingham, Alabama, the indictment alleges.

In the indictment, prosecutors said Council conducted several Google searches, including “SECGOV hack,” “SIM swapping in Telegram,” “how can I be sure if the FBI is investigating” and “What are the signs you’re under investigation by law enforcement or the FBI, even if they have not contacted you” and “what are the signs that the FBI is after you.”

Council was charged with conspiracy to commit aggravated identity theft and device fraud.

This article was originally published on : techcrunch.com
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