#Xmos xscope software#

In future, no filed will be untouched with multicore system.The first dual core microprocessor was Power-4, which was designed by the IBM ® in 2001. At the present time, there is vast use of multicore system. Figure2 shows the evolution of multicore era thatevery single processor replaced by a multicore processor to get high performance. In heterogeneous systems all the cores have different features it can vary clock cycles according to system requirements to achieve low power or ultra-low power mode.Flynn’s taxonomy is a specific classification of parallel computer architectures that are based on the number of concurrent instruction (single or multiple) and data streams (single or multiple) available in the architecture. If all the cores are identical and have the same features like message passing system, cache, threading, share memory and resources then it is called homogeneous multi-core processors. The multi-processing system has two types, namely homogeneous and heterogeneous. Table 1 represents the difference between single core and multicore and shows that multicore has more advantage over single core with respect to processing speed, power and operation handling ability etc. In multicore scenario, it is possible to perform operations at comparatively high speed to perform paralleled task and save time.

#Xmos xscope software#

Although with software threads, some amount of parallelization is possible, but it does not give satisfactory results. As the number of the taskis rapidly increasingthe user wants to perform more than one task at a time, but a computer with a single-core performs one operation at a time. It causes heat losses and leakage current so rather than increase the clock frequency of single core, manufacture switched to multicore to avoid the power consumption problem and to increase speed and efficiency. To enhance the performance of single core processor, it is mandatory to increase the frequency as CPU load increases.

Multicore has two or more CPUs while the single core has only one core inside it as illustrated in figure1. It increases the efficiency, safe execution time, take less energy and retain the time. Parallel processing makes programs run faster because there are more engines (CPUs or cores) workingon it. The main goal of parallel processing is a high performance computing, which speedup the execution time of the program. Parallel processing is the simultaneous use of more than one CPU to execute a program or multiple computational threads. Time consumption is the drawback of single core processors, so multicore technology is used to achieve efficiency through parallel processing. The basic need of a multicore system is the distributed and parallel computing. Technology is growing exponentially every day with the demand of more power and processing handling capabilities. Recently there has been a huge demand of high computing speed in time critical system, mostly in real time embedded device. The multicore microprocessor devices are already available in CISC architecture which used to perform non real time computing. the present era of technology, computational power plays an important role. The research work mentioned here not only illustrates the functionality of multicore microcontroller, but also express the novel technique of programming, profiling and optimization on such platforms in real time environments. The relative study for multicore processor and multicore controller concludes that micro architecture based controller having multiple cores illustrates better performance in time critical multi-tasking environment. The tasks assigned to multiple cores are executed simultaneously, which saves the time and energy. The paper also imitates multi-tasking and parallel programming for the same platform. The experimental results mentioned in the paper are based on xCORE multicore microcontroller form XMOS®. Due to the high complexity and limitations, it is very hard to work on the application development phase on such architectures. This paper presents the research work on multicore microcontrollers using parallel, and time critical programming for the embedded systems.