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• PERFORMANCE OF THE ELBRUS-8SV MICROPROCESSOR FOR TECHNICAL VISION TASKS UNDER POWER CONSTRAINTS

  N.A. Bocharov, A.G. Zuev, О. А. Slavin

  2021-04-04

  Abstract ▼

  Research in the field of creating specialized computing systems for robots is conducted in
  many world scientific centers, including our country. The development of capabilities of sensor
  systems, global navigation systems, growth of computing power and improvement of algorithms
  allow creating onboard computing systems with broad intellectual capabilities. An important, butunsolved problem remains the equipping of such computing systems with domestically produced
  microprocessors. The emergence of domestic computing systems and software of the new generation,
  such as microprocessor "Elbrus-8SV" and OS “Elbrus” opens up new opportunities for developers
  of robotic complexes. The peak performance of "Elbrus-8SV" microprocessor is more
  than 0.25 TFLOPS of double precision, which allows solving computationally complex tasks, such
  as technical vision tasks, on the microprocessor. Another important requirement of onboard computing
  technology, in addition to computational power, is low power consumption. As a rule, on
  general-purpose microprocessors, high performance is impossible with low power consumption,
  and specialized processors, such as vector or neuroprocessors, are used to solve computationally
  complex technical vision tasks. To reduce the power consumption of general-purpose microprocessors,
  there are special methods, among which the authors considered: switching off the physical
  cores, reducing the clock frequency, switching off the pipeline, switching off synchronous pulses
  in the idle state. The authors reviewed typical technical vision tasks solved by onboard computing
  systems. An experiment was conducted to estimate power consumption and execution time of
  vision algorithms when the clock frequency is reduced and the microprocessor cores are switched
  off. The experiments showed the possibility to decrease the power consumption of the Elbrus-8SV
  microprocessor cores by 36-46% with an increase in the program execution time. Based on the
  results of the experiment, conclusions were made about the applicability of the Elbrus-8SV microprocessor
  for creating advanced onboard computing systems with the ability to operate both in
  high performance mode and with reduced power consumption. The results obtained by the authors
  indicate the prospects of import substitution in the field of robotics.