Explain what is multi processing operating system

In case, the master processor fails, a slave processor is turned to master processor to continue the execution.However, the processors in Asymmetric Multiprocessing need not to communicate with each other as they are controlled by the master processor. Processors in symmetric multiprocessing communicate with each other by the shared memory.But the structure of processors in asymmetric multiprocessor may differ. All the processor in Symmetric Multiprocessing has the same architecture.But, in asymmetric multiprocessing, master processor assigns processes to the slave processors. In symmetric multiprocessing, each processor may have its own private queue of ready processes, or they can take processes from a common ready queue.On the other hand, all the processors in symmetric multiprocessing run the tasks in OS. The most distinguishable point between symmetric and asymmetric multiprocessing is that the tasks in OS are handled only by the master processor in Asymmetric Multiprocessing.Key Differences Between Symmetric and Asymmetric Multiprocessing

Asymmetric Multiprocessing is simple as there only one processor that is controlling data structure and all the activities in the system. In case if a slave processor fails, the other slave processor take over its job.

In case a master processor fails, one processor among the slave processor is made the master processor to continue the execution. The scheduling of processes, I/O processing and other system activities are controlled by the master processor. The master processor controls the data structure. The master processor allots processes to slave processor, or they may have some predefined task to perform. There is one master processor that controls remaining slave processor. Definition of Asymmetric MultiprocessingДЄsymmetric Multiprocessing has the master-slave relationship among the processors. In Symmetric Multiprocessing, a processor failure results in reduced computing capacity. It is complex as the memory is shared among all the processors. Symmetric Multiprocessing has proper load balancing, better fault tolerance and also reduces the chance of CPU bottleneck. It must be taken care by the scheduler that no two processors execute the same process. Each processor may also have its own private queue of ready processes to get executed. The processors start executing the processes from the common ready queue. All the processors here, communicate using the shared memory.

It has no master-slave relationship like asymmetric multiprocessing. Symmetric Multiprocessing is one in which all the processor run the tasks in the operating system. Symmetric Multiprocessor is complex as all the processors need to be synchronized to maintain the load balance.ДЄsymmetric Multiprocessor is simple as master processor access the data structure. If a slave processor fails, its task is switched to other processors. If a master processor fails, a slave is turned to the master processor to continue the execution. If a processor fails, the computing capacity of the system reduces. Processors need not communicate as they are controlled by the master processor. Master processor assign processes to the slave processors, or they have some predefined processes.ДЄll processor in Symmetric Multiprocessing has the same architecture.ДЄll processor in Asymmetric Multiprocessing may have same or different architecture.ДЄll processors communicate with another processor by a shared memory. Processor takes processes from a common ready queue, or there may be a private ready queue for each processor. Only Master processor run the tasks of Operating System. Content: Symmetric Vs Asymmetric MultiprocessingД®ach processor run the tasks in Operating System. You can differentiate Symmetric Multiprocessor and Asymmetric Multiprocessor on some other points they are discussed in the comparison chart shown below. But, in Asymmetric Multiprocessing only the master processor run task in OS. The primary difference between Symmetric and Asymmetric Multiprocessing is that in Symmetric Multiprocessing all the processor in the system run tasks in OS.

Explain what is multi processing operating system