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> (2019) New PIM Technology for Next-Gen. AI Chips, 8.8 TOPS/W (Renesas Electronics)
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Дата 13.06.2019 09:14
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(2019) Renesas Electronics Develops New Processing-In-Memory Technology for Next-Generation AI Chips that Achieves AI Processing Performance of 8.8 TOPS/W
Источник: https://www.renesas.com/us/en/about/press-c...ws20190613.html

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TOKYO, Japan ― Renesas Electronics Corporation (TSE: 6723), a premier supplier of advanced semiconductor solutions, today announced it has developed an AI accelerator that performs CNN (convolutional neural network) processing at high speeds and low power to move towards the next generation of Renesas embedded AI (e-AI), which will accelerate increased intelligence of endpoint devices. A Renesas test chip featuring this accelerator has achieved the power efficiency of 8.8 TOPS/W (Note 1), which is the industry's highest class of power efficiency. The Renesas accelerator is based on the processing-in-memory (PIM) architecture, an increasingly popular approach for AI technology, in which multiply-and-accumulate operations are performed in the memory circuit as data is read out from that memory.


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To create the new AI accelerator, Renesas developed the following three technologies. The first is a ternary-valued (-1, 0, 1) SRAM structure PIM technology that can perform large-scale CNN computations. The second is an SRAM circuit to be applied with comparators that can read out memory data at low power. The third is a technology that prevents calculation errors due to process variations in the manufacturing. Together, these technologies achieve both a reduction in the memory access time in deep learning processing and a reduction in the power required for the multiply-and-accumulate operations. Thus, the new accelerator achieves the industry's highest class of power efficiency while maintaining an accuracy ratio more than 99 percent when evaluated in a handwritten character recognition test (MNIST).

Renesas presented these results on June 13, at the 2019 Symposia on VLSI Technology and Circuits in Kyoto, Japan, June 9-14, 2019. Renesas also demonstrated real-time image recognition using a prototype AI module in which this test chip, powered by a small battery, was connected with a microcontroller, a camera, other peripheral devices, and development tools at the demonstration session.


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Дата 29.09.2019 06:52
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