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{"id":36191,"date":"2023-06-29T22:27:02","date_gmt":"2023-06-29T22:27:02","guid":{"rendered":"https:\/\/scienceandnerds.com\/2023\/06\/29\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/"},"modified":"2023-06-29T22:27:03","modified_gmt":"2023-06-29T22:27:03","slug":"celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects","status":"publish","type":"post","link":"https:\/\/scienceandnerds.com\/2023\/06\/29\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/","title":{"rendered":"Celestial AI raises $100M to transfer data using light-based interconnects"},"content":{"rendered":"

Source:https:\/\/techcrunch.com\/2023\/06\/28\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/<\/a><\/br>
\nCelestial AI raises $100M to transfer data using light-based interconnects<\/br>
\n2023-06-29 22:27:02<\/br><\/p>\n

\n

David Lazovsky and Preet Virk, technologists with backgrounds in semiconductor engineering and photonics, came to the joint realization several years ago that AI<\/span> and machine learning workloads would quickly encounter a \u201cdata movement\u201d problem. Increasingly, they predicted, it would become challenging to move data to and from compute hardware as AI models scaled past what could be kept on the die of any one memory chip.<\/p>\n

Their solution \u2014 architected by Phil Winterbottom, previously a researcher at the distinguished Bell Labs \u2014 was an optical interconnect technology for compute-to-compute, compute-to-memory and on-chip data transmission. Along with Winterbottom, Lazovsky and Virk founded a startup, Celestial AI<\/a>, to commercialize the tech. And now that startup is attracting big backers.<\/p>\n

Celestial AI today announced that it raised $100 million in a Series B round led by IAG Capital Partners, Koch Disruptive Technologies and Temasek\u2019s Xora Innovation fund. The tranche, which brings Celestial AI\u2019s total raised to more than $165 million, will be used to support the production of Celestial\u2019s photonics platform by expanding the company\u2019s engineering, sales and technical marketing departments, according to CEO Lazovsky.<\/p>\n

Celestial has around 100 employees at present \u2014 a number that Lazovsky expects will grow to 130 by the end of the year.<\/p>\n

\u201cToday, compute and memory are closely coupled. The only way to add more high bandwidth memory is to add more compute, whether the additional compute is required or not,\u201d Lazovsky told TechCrunch via email. \u201cCelestial\u2019s tech enables memory disaggregation.\u201d<\/p>\n

In a data center, memory is often one of the most expensive<\/a> resources \u2014 in part because it\u2019s not always used efficiently. Because memory is tied to compute, it\u2019s challenging \u2014 and sometimes impossible, due to bandwidth constraints and sky-high latency \u2014 for operators to \u201cdisaggregate\u201d and pool the memory across hardware within the data center.<\/p>\n

According to an internal<\/a> Microsoft study, up to 25% of memory in Azure is \u201cstranded,\u201d or left over, after the servers\u2019 cores have been rented to virtual machines. Reducing this stranded memory could cut data center costs by 4% to 5%, the company estimated<\/a> \u2014 potentially significant savings in the context of a multibillion-dollar operation.<\/p>\n

Celestial \u2014 which began as a portfolio company of The Engine, the VC firm spun out of MIT in 2016 \u2014 developed an ostensible solution in its photonics-based architecture, which scales across multiple-chip systems. Using light to transfer data, Celestial\u2019s tech can beam information within chips and chip-to-chip, making both memory and compute available for AI \u2014 and other \u2014 workloads.<\/p>\n

\"Celestial\"<\/p>\n

Image Credits:<\/strong> Celestial<\/p>\n<\/div>\n

Celestial also claims that its tech can reduce the amount of electricity necessary for data movement, indirectly boosting a chip\u2019s performance. Typically, chips devote a portion of the electricity they draw to data movement between their circuits, which takes away from the electricity that the chip can direct to computing tasks. Celestial\u2019s photonics reduce the power required for data movement, allowing a chip to \u2014 at least in theory \u2014 increase its compute power.<\/p>\n

Celestial\u2019s photonics tech, which is compatible with most industry interconnect standards (e.g., CXL<\/a>, PCIe<\/a>), delivers 25x higher bandwidth and 10x lower latency and power consumption than optical alternatives, the company asserts.<\/p>\n

\u201cWith the growth in AI<\/span> , especially large language models (LLMs) and recommendation engine workloads, there is a shift towards accelerated compute,\u201d Lazovsky said. \u201cThe key problem going forward is memory capacity, memory bandwidth and data movement \u2014 i.e., chip-to-chip interconnectivity \u2014 which is what we are addressing with Celestial\u2019s photonic fabric.\u201d<\/p>\n

Celestial is offering its interconnect product through a licensing program and says that it\u2019s engaged with several \u201ctier-one\u201d customers, including hyperscalers and processor and memory companies.<\/p>\n

The interconnect product appears to be priority number one for Celestial. The company sells its own AI accelerator chip, dubbed Orion, built on Celestial\u2019s photonics architecture. But as investors told TechCrunch in a recent piece for TC+<\/a>, AI photonics chips have yet to overcome engineering challenges that would make them practical at scale. Unless Celestial stumbled upon breakthroughs in the areas of data-to-analog conversion and signal regeneration \u2014 top stumbling blocks for today\u2019s photonics chips \u2014 it\u2019s unlikely that Orion is much further along than the competition.<\/p>\n

Chip aside, Celestial has a number of competitors in a photonic integrated circuit market that could<\/a> be worth $26.42 billion by 2027.<\/p>\n

Ayar Labs<\/a>, which makes chip solutions based on optical networking principles, has raised over $200 million in venture capital since its founding in 2015. Renovus, another rival, recently landed a $73.9 million investment.<\/p>\n

There could be consolidation ahead in the broader optical interconnection space, though. Around three years ago, Marvell bought Inphi, an optical networking specialist<\/a>, for $10 billion. After a period of quiet, Microsoft last year acquired Lumenisity<\/a>, a startup developing high-speed optical cables for data center and carrier networks.<\/p>\n

Both Inphi and Lumenisity were targeting different use cases with their tech. But the enthusiasm from Big Tech around optics and photonics is worth noting.<\/p>\n

\u201cOur photonics technology is truly differentiated and is unique with superior characteristics,\u201d Lazovsky said. \u201cGiven the growth in generative AI workloads due to LLMs and the pressures it puts on current data center architectures, demand is increasing rapidly for optical connectivity to support the transition from general computing data center infrastructure to accelerating computing.\u201d<\/p>\n

Samsung Catalyst, Smart Global Holdings, Porsche Automobil Holding SE, The Engine Fund, imec.xpand, M Ventures and Tyche Partners also participated in Celestial\u2019s Series B.<\/p>\n<\/p><\/div>\n

<\/br><\/br><\/br><\/p>\n

Science, Tech, Technology<\/br>
\n<\/br>
\nSource:https:\/\/techcrunch.com\/2023\/06\/28\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/<\/a><\/br><\/br><\/p>\n","protected":false},"excerpt":{"rendered":"

Source:https:\/\/techcrunch.com\/2023\/06\/28\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/ Celestial AI raises $100M to transfer data using light-based interconnects 2023-06-29 22:27:02 David Lazovsky and Preet Virk, technologists with backgrounds in semiconductor engineering and photonics, came to the joint realization several years ago that AI and machine learning workloads would quickly encounter a \u201cdata movement\u201d problem. Increasingly, they predicted, it would become challenging to […]<\/p>\n","protected":false},"author":1,"featured_media":36192,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"pagelayer_contact_templates":[],"_pagelayer_content":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[26,17,8],"tags":[],"class_list":["post-36191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","category-tech","category-technology"],"yoast_head":"\nCelestial AI raises $100M to transfer data using light-based interconnects - Science and Nerds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/scienceandnerds.com\/2023\/06\/29\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Celestial AI raises $100M to transfer data using light-based interconnects - Science and Nerds\" \/>\n<meta property=\"og:description\" content=\"Source:https:\/\/techcrunch.com\/2023\/06\/28\/celestial-ai-raises-100m-to-transfer-data-using-light-based-interconnects\/ Celestial AI raises $100M to transfer data using light-based interconnects 2023-06-29 22:27:02 David Lazovsky and Preet Virk, technologists with backgrounds in semiconductor engineering and photonics, came to the joint realization several years ago that AI and machine learning workloads would quickly encounter a \u201cdata movement\u201d problem. 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