Incredible probabilistic processor
At the International Solid-State Circuits Conference, held from February 8 to February 12 in San Francisco, researchers from Rice University showed a real working probabilistic processor.
Called it PCMOS, (probability-based complementary metal-oxide semiconductor). Actually, the new one here is the prefix P (probability-based). Since the processor uses exactly the same complementary logic on metal-oxide-semiconductor transistors, as well as existing chips. However, the presented prototype, during the creation of which the developers abandoned the traditional Boolean logic, replacing it with a probabilistic approach, is 7 times faster than the current chips, and at the same time consumes 30 times less energy.
According to the head of the research team of researchers from Rice University, Krishna Pelem, the new processor refutes one of the computer science postulates - that the information is accurate by definition. The fact is that PCMOS is able to turn off the power of its individual transistors, allowing in this connection the possibility of inaccuracy of some calculations. As a result, the processor operates at a much lower voltage and handles calculation errors and errors using probabilistic logic.
')
Interestingly, not only the chip itself was shown at the Solid-State Circuits Conference, but an example of its experimental use. So, PCMOS is used in a video decoder for cell phones, which “tries to be exact” only when processing the most significant elements of the image. According to the developers, the participants in the experiments do not find the difference between the picture generated by PCMOS and the processor of traditional architecture.
via electronista
Called it PCMOS, (probability-based complementary metal-oxide semiconductor). Actually, the new one here is the prefix P (probability-based). Since the processor uses exactly the same complementary logic on metal-oxide-semiconductor transistors, as well as existing chips. However, the presented prototype, during the creation of which the developers abandoned the traditional Boolean logic, replacing it with a probabilistic approach, is 7 times faster than the current chips, and at the same time consumes 30 times less energy.
According to the head of the research team of researchers from Rice University, Krishna Pelem, the new processor refutes one of the computer science postulates - that the information is accurate by definition. The fact is that PCMOS is able to turn off the power of its individual transistors, allowing in this connection the possibility of inaccuracy of some calculations. As a result, the processor operates at a much lower voltage and handles calculation errors and errors using probabilistic logic.
')
Interestingly, not only the chip itself was shown at the Solid-State Circuits Conference, but an example of its experimental use. So, PCMOS is used in a video decoder for cell phones, which “tries to be exact” only when processing the most significant elements of the image. According to the developers, the participants in the experiments do not find the difference between the picture generated by PCMOS and the processor of traditional architecture.
via electronista
Source: https://habr.com/ru/post/51491/
All Articles