Cadence streamlines DSP IP for vision, AI applications

Cadence streamlines DSP IP for vision, AI applications

Technology News |
By Christoph Hammerschmidt

At its latest user conference CDNLive in Munich, Cadence focused on artificial intelligence (AI). “The next wave of semiconductor computing is AI”, said Tom Beckley, Senior Vice President and General Manager of Cadence’s Custom IC & Systems Group, in his keynote speech. While the power footprint of existing AI hardware is still way too high, the market for AI processing system is outgrowing the overall semiconductor market by a factor of 3 over the next ten years, Beckley said, adding that the company will invest “massively” into developing related technologies. The total addressable market for AI processors amounts to $10 to $30 billion, added Cadence Marketing Vice President Craig Cochrane.

In this promising environment, the company recently announced the third generation of its JasperGold Formal Verification platform. Now it is going one better with the introduction of a new version of its Tensilica DSP. The new Vision Q7 version of this popular IP (it bears the release number 6) will be streamlined for Simultaneous Localization and Mapping (SLAM) operations, a type of algorithm that is used in robotics, drones, mobile radio and automotive applications to automatically generate or update a map of an unknown environment. Another SLAM use case is inside out tracking in VR/AR environments.

The increasing demand for image sensors in edge applications has led to corresponding growth in the embedded vision market. Current image applications require a mixture of image processing and AI, whereby the corresponding edge SoCs must a highly flexible and very efficient image processing and AI solutions and at the same time consume very little power.

Twice the AI and floating point performance over its predecessor
at the same size: Tensilica Vision Q7 DSP (C) Cadence

In addition, edge applications with an integrated camera require a Vision DSP to be able to perform pre- or post-processing prior to an AI task. For SLAM processing, the corresponding edge SoC also requires an offload engine to increase performance, reduce latency, and ensure lower power consumption for battery-powered devices. Because SLAM operations use both fixed and floating point arithmetic to achieve the necessary accuracy, a vision DSP used for SLAM operations must provide high processing power for both data types.

With its low power consumption, its architectural and instruction set extension, the Vision Q7 DSP is designed to meet the needs of sophisticated edge vision and AI processing tasks. Cadence promises that the new DSP offers twice as much performance in AI and floating point computing tasks as its predecessor – at the same real-estate consumption on the chip. The enhanced instruction set now offers 8-, 16- and 32-bit data types; the VLIW SIMD architecture processes 1.7-times more instructions than the Vision Q6. For even higher AI throughput, the Q7 can be connected to the Tensilica DNA 100 processor.

Developed according to the requirements of key customers using complex vision and AI algorithms, the Vision Q7 DSP is expanding Cadence’s automotive portfolio in the first place. It supports AI applications developed with popular frameworks such as Caffe, TensorFlow and TensorFlowLite as well as the Tensilica Xtensa Neural Network Compiler (XNNC), which converts neural networks into executable and optimized code. The software environment also provides support for more than 1,700 OpenCV-based vision libraries, enabling rapid high-level migration of existing vision applications. Development tools and libraries have also been developed for SoC vendors to achieve ISO 26262 ASIL D (Automotive Safety Integrity Level D) certification.

Related articles:

Formal verification platform leverages AI to speed up verification throughput

Cadence claims 10X boost for automotive radar/lidar, 30X boost for 5G

Tensilica Vision Q6 DSP to boost embedded vision and AI

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