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Intel’s 2nd-gen neuromorphic chip is 10x smarter than the first

News Analysis
Oct 18, 20212 mins
Data Center

With the Loihi 2 neuromorphic chip, machines can perform application processing, problem-solving, adaptation,and learning much faster than before.

Intel Loihi 2 machine learning brain chip on a fingertip

Four years after Intel first introduced Loihi, the company’s first neuromorphic chip, the company has released its second generation processor, which Intel says will provide faster processing, greater resource density, and improved power efficiency.

CPUs are often called the brains of the computer but aren’t, really, since they process only a handful of tasks at once in a serial manner, nothing like what the brain does automatically to keep you alive. Neuromorphic computing attempts to replicate the functions of the brain by performing numerous tasks simultaneously, with emphasis on perception and decision making

Neuromorphic chips mimic neurological functions through computational “neurons” that communicate with one another. The first generation of Loihi chips had around 128,000 of those digital neurons; the Loihi 2 has more than a million.

Intel states that early tests of Loihi 2 required more than 60 times fewer ops per inference when running deep neural networks compared to Loihi 1, without a loss in accuracy. This can mean real-time application processing, problem-solving, adaptation and learning. It has even learned how to smell.

Loihi 2 also features faster I/O interfaces to support Ethernet connections with vision-based sensors and larger meshed networks. This will help the chip better integrate with the robotics and sensors that have been commonly used Loihi 1 in the past.

Loihi isn’t sold like regular Intel chips. It is sold through complete systems to select members of its Intel Neuromorphic Research Community (INRC). Those systems are called Oheo Gulch, which uses a single Loihi 2 chip and is intended for early evaluation, and Kapoho Point, which offers eight Loihi 2 chips and will be available soon.

Intel Releases Lava Framework

To support development for neuromorphic applications, Intel has also introduced an open, modular, and extensible software framework known as “Lava”, which the company says provides the neuromorphic computing community with a common development framework.

A component of Lava is Magma, an interface for mapping and executing neural-network models and other processes using neuromorphic hardware. Lava also includes offline training, integration with third-party frameworks, Python interfaces and more.

The Lava framework is available now on GitHub.

Andy Patrizio is a freelance journalist based in southern California who has covered the computer industry for 20 years and has built every x86 PC he’s ever owned, laptops not included.

The opinions expressed in this blog are those of the author and do not necessarily represent those of ITworld, Network World, its parent, subsidiary or affiliated companies.