If you have ever mounted a PCSurely one of the points on which you have had to pay the most attention is the connections. Because understanding the power of the processor, the GPU or the speed of the RAM is “easy”, but the motherboard is what allows us to interconnect all these components with ‘highways’ in which the data speed can be maximum.
In the data centers and serversthis is the same: the better the connections between chips and equipment, the lower latency, higher bandwidth and better performance. These connections are made physically, but there is a French startup that wants to change the rules of the game with NVIDIA.
As? Connecting the chips by laser.
Chips connected by laser and NVIDIA taking out the wallet
Improving interconnection speed is no small feat or a whim. NVIDIA has begun manufacturing its next generation platform, the one named Vera Rubin. It is a system that can be combined with others to multiply benefits. That union, as we say, is physical, but there comes a point at which physics is no longer enough.
When that arrives, NVIDIA wants to be ready and, a few days ago, Reuters reported on a $4 billion investment by NVIDIA in two companies that are aggressively researching new technologies to help increase that interconnection speed: Lumentum and Coherent.
This is a rack and the nightmare of those of us who hate cables. Specifically, that of the Wikimedia Foundation. Well, imagine that a large part of those cables go outside because the systems are connected by electricity
Another of the companies in which they have invested is Scintil Photonics. It is a French startup that this in the testing phase of a technology that, if the industry adopts it, will mark a before and after in this connection on a team scale.
The LEAF Light Evaluation Kit is, as detailed, the first dense wavelength division multiplexing single chip to go from theory to practice. It’s like another language, I know, but it’s basically what we were talking about: an optical chip interconnection system instead of copper.
And that is the main advantage. With copper reaching physical limits of speed and density, optics are emerging as a solution when connecting clusters of thousands of processors. Each chip has an optical system that is responsible for emitting and receiving light, and in that light goes the data that is currently traveling through cables.
The one from the French company it is not the first chip based on photonic communication, but they claim that their technology reduces the energy necessary for them to work by 50%, as well as latency. Results? Well we’ll see. The startup’s CEO, Matt Crowley, has commented that he has “six or seven companies interested in implementing the technology by 2028,” but that due to confidentiality agreements, he cannot name names.
The Scintil Photonics prototype
The complication in this will be that they get supply of the photonics systems, since the data center racks are built with the idea that they are scalables. That is, it is no longer just power, but how many tens of thousands of units you can interconnect, and a bottleneck in the manufacturing of any of the parties involved in optics would be equivalent to a lack of supply for their customers.
At the moment, some prototypes have already been served to select companies for testing, but certainly, using light pulses instead of electrical signals is something that is very interesting in superclusters focused on huge data centers that can scale without the limitations of the physical connection.
Images | Victorgrigas, M.I.T., GlobeNewswire
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