Tesla says it’s dumping Nvidia chips for a homebrew different


Tesla is creating its personal chips optimized for machine studying, CEO Elon Musk stated throughout a name with buyers on Wednesday. Musk acknowledged the rumored challenge final December however is now offering extra particulars.

“We’ve been in semi-stealth mode for the last two to three years,” Musk stated.

During that point, Tesla created what Musk described as “the world’s most advanced computer specifically for autonomous operation.”

Musk stated that the brand new chip, due out subsequent yr, will ship an “order of magnitude improvement in operations per second” in comparison with “current Nvidia hardware.” And the brand new {hardware} is designed to be backward-compatible with the present era of Tesla automobiles, permitting Tesla to swap out the previous {hardware} to provide present automobiles a giant efficiency increase.

The choice to make the chip backward-compatible with present Tesla automobiles could also be a tacit admission that the “hardware 2” chip Tesla started delivery two years in the past was not, actually, highly effective sufficient for full self-driving capabilities, regardless of being marketed as self-driving succesful. Musk did not specify when upgrades is perhaps obtainable to present Tesla homeowners or if these upgrades can be supplied without spending a dime or require an extra fee.

Tesla employed an Apple chip guru for the challenge

Tesla’s chip efforts have been spearheaded by Pete Bannon, an engineer who oversaw the event of the A5 chip on the coronary heart of the iPhone 5 and labored on plenty of iPhone chips since then.

“Two years ago when I joined Tesla we did a survey of all the solutions that are out there for running neural networks, including GPUs,” Bannon stated on the earnings name. He continued:

Pretty a lot in all places we regarded, if somebody had a hammer, whether or not it was a CPU or a GPU or no matter, they had been including one thing to speed up neural networks. But nobody was doing a bottoms-up design from scratch, which is what we love to do.

We had the advantage of having the perception into seeing what Tesla’s neural networks regarded like again then and having projections of what they might appear to be sooner or later, and we had been in a position to leverage all of that information and our willingness to completely decide to that type of computing to provide a design that’s dramatically extra environment friendly and has dramatically extra efficiency than what now we have at present.

The key to the chip’s efficiency, Musk added, is to “run the neural net at a bare metal level.” Other CPU and GPU chips do neural community calculations “in some kind of emulation mode,” he stated.

The Tesla chip has the power to do “a huge number of very simple computations with the memory needed to store the results right next to the circuits doing the matrix calculations,” Musk stated. For lots of competing methods, Musk stated, “the transfer between the GPU and the CPU ends up being one of the constraints on the system.”

Of course, some firms have designed chips particularly for machine-learning purposes. Google, for instance, has developed chips referred to as tensor processor models for machine-learning purposes, although up to now they’ve targeted on providing the chips as a cloud computing service relatively than promoting chips to 3rd events. Musk did not clarify how Tesla’s chips evaluate to different chips which are custom-designed for machine-learning purposes.

Musk stated that the outcome was an order-of-magnitude enchancment over present Nvidia chips. But he did not specify which chips he was speaking about, making the comparability considerably unclear. Tesla adopted Nvidia’s Drive PX 2 platform in 2016. Then, final yr, Nvidia introduced the PX 2 Pegasus, a brand new platform with 10 occasions the efficiency of the unique PX 2, due out this yr.

If Tesla’s chip efficiency is ten occasions nearly as good because the PX 2 chips in present Tesla automobiles, that will put them roughly on par with Nvidia’s Pegasus chips. On the opposite hand, if Tesla was planning to ship a tenfold enchancment over Nvidia’s Pegasus chips, that would give the corporate a considerable benefit for the following couple of years. We’ve requested Tesla for extra particulars and can replace if we hear again.

“It’s an amazing design, and we’re looking to increase the size of our chip team and our investment in that as quickly as possible,” Musk stated.

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