In this paper we present CASPER, a robust instruction trace driven cycle-accurate many-core multi-threading micro-architecture simulation platform where we have incorporated power estimation models of a wide variety of tunable many-core micro-architectural design parameters, thus enabling processor architects to explore a sufficiently large design space and achieve power-efficient designs. For large scale designs of many-core processors, a holistic approach integrating both these techniques at different levels of abstraction can potentially achieve maximal power savings. While most chip architects design power-efficient processors by finding an optimal power-performance balance in their design, some use sophisticated on-chip autonomous power management units, which dynamically reduce the voltage or frequencies of idle cores and hence extend battery life and reduce operating costs. This allows the result obtained to be extended to MCs made by other manufacturers, which ensures the practical value of the developed patterns.ĭespite the promising performance improvement observed in emerging many-core architectures in high performance processors, high power consumption prohibitively affects their use and marketability in the low-energy sectors, such as embedded processors, network processors and application specific instruction processors (ASIPs). The study results were tested using the STM32F103 microcontroller employing the Cortex microcontroller software interface system (CMSIS) library. The developed patterns make it possible to unify the source code for the Cortex-M architecture microcontrollers from different manufacturers, improve maintenance, and adapt it to the mathematical model of the finite state machine. A feature of these patterns is the higher speed of the software solution compared to the solutions based on RTOS. To address these shortcomings, typical State software patterns have been developed for an auxiliary controller within a circuit of controlling mechanisms or sensors based on the Cortex-M architecture microcontroller in real time, in a procedural paradigm. Simple software solutions are complex at unification, support, and have difficulties with mathematical modeling. This study has found that the application of RTOS leads to a speed-related constraint. The software part of these microcontrollers data could be implemented on the basis of a real-time operating system (RTOS). Such hardware can be implemented on the basis of mass microcontrollers of the Cortex-M architecture. At the same time, it is necessary to ensure the unification of the source code, the quality of software maintenance, and mathematical modeling at a relatively low cost of software and hardware solution. Live monitor audio output of a probe.There are real-time technical systems that require high speed of software solutions. Port of localhost used to communicate with xrun Number of bits in audio samples from device XMOS Audio Probe Tool optional arguments: -h, -help Here is the help output from the utility: usage: xvu.py Please see the following for a simple example: It copes OK with 2 channels at 48k on my 2014 i5 macbook, so should be able to do Multiple channels at 16k. Xrun -xscope-port localhost:6231 app_voice_processing.xe Performance Please start target app: xrun -xscope-port localhost:6231 Here is what the VU meter looks like to run: The xvu.py script listens to the port and decodes the messages. The run command runs the binary and forwards the debug output over xscope to a port. They communicate via a port on the localhost: xvu.py -r 48000 -p 6231Īnd: xrun -xscope-port localhost:6231 my_test_app.xe You need to simultaneously run the firmware and the xvu script. The tool is tested with Xmos tools version 14.3.4. An audio output from your host (Will be slightly glitchy due to rate mismatch).A real time decibel meter with a peak hold function.XVU (Xmos VU) is a host side utility written in Python that captures low-overhead xscope_int() instrumentation probes from your xcore app and turns the output into:
0 Comments
Leave a Reply. |