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Can a multithread solution using multiple user level threads achieve better performance on a multiprocessor system than on a single processor system?
A multithreaded system comprising of multiple user-level
threads cannot make use of the different processors in a multiprocessor
system simultaneously. The operating system sees only a single process
and will not schedule the different threads of the process on separate
processors. Consequently, there is no performance benefit associated
with executing multiple user-level threads on a multiprocessor system.
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Definition of multi-core processor?
A multi-core processor is one which combines what are essentially multiple CPUs into a single chip. As far as the operating system and other software are concerned, it is the same as a dual or quad-cpu computer system, even though the cpus are physically one single unit.
What do you mean by multithread program in java?
A Program in Java that spawns multiple threads is called a multithreaded program in Java.
Difference between array processor and multiprocessor?
an array processor can handle multiple data elements simultaneously,in a parallel fashion, but a multiprocessor handle multiple processes simultaneously which may include more than one data element in each process... An array procesor is optimized for array operations, has its own set of instructions, large memory block moves, logical operations on many array elements, etc and may itself be multi-processor or massively parallel. It has an interface where a host loads memory locations with the array to be processed (or perhaps a data file), then the array processor uses its specialized structure to do what was asked of it on the array, then tell the host is done and the result may be found in memory locations or perhaps a data file. Many of the jobs supercomputers do are array operations, the specialized capabilities can cost thousands of dollar per CPU second but they can do array operations that might take years for slower general purpose computers. An array procesor can also be smaller, a graphics processor handling the video display is an array processor. A typical operation is move the image to the right, move all the pixels to the right.. A general purpose computer may be multi-processor (Intel's multi-core).
What is difference between scalar and super scalar processor?
Differences between scalar and superscalar processors generally boil down to quantity and speed. A scalar processor, considered to be the simplest of all processors, works on one or two computer data items at a given time. The superscalar processor works on multiple instructions and several groups of multiple data items at a time. Scalar and superscalar processors both function the same way in terms of how they manipulate data, but their difference lies in how many manipulations and data items they can work on in a given time. Superscalar processors can handle multiple instructions and data items, while the scalarprocessor simply cannot, therefore making the former a more powerful processor than the latter. Scalar and superscalar processors both have some similarities with vector processors. Like ascalar processor, a vector processor also executes a single instruction at a time, but instead of just manipulating one data item, its single instruction can access multiple data items. Similar with the superscalar processor, a vector processor has several redundant functional units that let it manipulate multiple data items, but it can only work on a single instruction at a time. In essence, a superscalar processor is a combination of a scalar processor and a vector processor.
What two things are important when building a workstation that will run multiple virtual machines?
When building a workstation for running multiple virtual machines, two critical factors are CPU power and RAM capacity. A multi-core processor enables efficient multitasking and better performance across VMs, while ample RAM ensures that each virtual machine has enough memory to operate smoothly without causing slowdowns. Additionally, sufficient storage speed and capacity can enhance performance and support the demands of multiple operating systems.
Is the ability of a processor to perform multiple activities in a brief period of time?
Multiprocessor
When to use multiprocessor system?
Multiprocessor systems are typically used in situations where a high level of parallel processing is required, such as scientific simulations, big data processing, and server applications that need to handle multiple tasks simultaneously. They can increase overall system performance by distributing the workload across multiple processors and can provide redundancy in case of processor failures.
What does multiprocessor free and multiprocessor kernel mean in re to OS Build Type?
In the context of operating system build types, "multiprocessor free" refers to an operating system build that does not support multiprocessor systems. This means it is designed to run on single-processor systems only. On the other hand, "multiprocessor kernel" refers to an operating system build that supports multiprocessor systems, allowing for parallel processing and improved performance by utilizing multiple processors simultaneously. The inclusion of a multiprocessor kernel enables the operating system to take advantage of the capabilities offered by multiprocessor hardware configurations.
What is a characteristic of multi processor system?
A characteristic of a multiprocessor system is the ability to execute multiple processes or threads simultaneously, which enhances performance and throughput. These systems often share a common memory space, enabling efficient communication and data sharing between processors. Additionally, multiprocessor systems can provide increased reliability and fault tolerance, as the failure of one processor may not significantly impact overall system functionality.
Which processor-memory interconnect exhibits the best performance in a multiprocessor system?
In multiprocessor systems, the performance of the processor-memory interconnect can vary significantly, but one of the top contenders is the Intel QuickPath Interconnect (QPI) or AMD's Infinity Fabric. These interconnects are designed for high bandwidth and low latency, enabling efficient communication between multiple processors and memory. Additionally, interconnects that leverage mesh or toroidal topologies often provide better scalability and performance compared to traditional bus-based systems. Ultimately, the best choice depends on the specific architecture and workload requirements.
Definition of multi-core processor?
A multi-core processor is one which combines what are essentially multiple CPUs into a single chip. As far as the operating system and other software are concerned, it is the same as a dual or quad-cpu computer system, even though the cpus are physically one single unit.
What do you mean by multithread program in java?
A Program in Java that spawns multiple threads is called a multithreaded program in Java.
What are the characteristics of multiprocessors?
A multiprocessor system is an interconnection of two or more CPUs with memory and input- output equipment. The term "processor" in multiprocessor can mean either a central processing unit (CPU) or an input-output processor (lOP). As it is most commonly defined, a multiprocessor system implies the existence of multiple CPUs, although usually there will be one or more IOPs as well. Multiprocessors are classified as multiple instruction stream, multiple data stream (MIMD) systems. There are some similarities between Multiprocessor and Multicomputer systems since both support concurrent operations. However, there exists important distinction between a system with multiple computers and a system with multiple processors.Computers are interconnected with each other means of communication lines to form a computer network. The network consists of several autonomous computers that may or may not communicate with each other. A multiprocessor system is controlled by one operating system that provides interaction between processors and all the components of the system cooperate in the solution of a problem.
A processor housing that contains more than one processor is referred to as what term?
A processor housing that contains more than one processor is referred to as a "multi-processor system" or "multiprocessing system." This configuration allows multiple CPUs to work together to improve performance and efficiency by sharing the computational load. Multi-processor systems are commonly used in servers and high-performance computing environments.
What is multiprocessor synchronization?
Multiprocessor synchronization refers to the coordination of processes or threads running on multiple processors to ensure they operate correctly and efficiently without conflicts. It addresses issues like race conditions, where multiple processes access shared resources concurrently, potentially leading to inconsistent data. Techniques for achieving synchronization include locks, semaphores, and barriers, which help manage access to shared resources and maintain data integrity. Effective synchronization is crucial for optimizing performance and ensuring the reliability of multiprocessor systems.
What are different types multiprocessor system?
A multiprocessor system is any device with multiple processors(processing cores). These days, you can buy up to an 8 core PC, (apple's new mac pro) http://blogs.zdnet.com/Apple/?p=485 But most people with gaming PC's have at least a duo-core processor. They used to be very expensive, but now they are affordable. But you'll usually hear that term associated with PC or computing devices. It makes everything faster, especially multitasking.
What difference between cluster system and multiprocessor system?
A cluster system consists of multiple independent computers connected together, each with its own operating system and resources, while a multiprocessor system has multiple processors sharing the same memory and operating system. In a cluster system, each node operates independently and communicates through a network, whereas in a multiprocessor system, all processors share the same memory space and can access shared resources more efficiently. Clusters are typically used for high availability and scalability, while multiprocessor systems are designed for high performance and parallel processing tasks.
