VLIW stands for Very-Long Instruction Word (VLIW) architectures. It is an appropriate alternative for exploiting instruction-level parallelism (ILP) in programs, especially, for performing more than one basic (primitive) instruction at a time.These processors include various functional units, fetch from the instruction cache a Very-Long Instruction Word including various primitive instructions, ... Read More

Data routing networks are used for inter PE data exchange. Data routing networks can be static or dynamic. In a multicomputer network, data routing is achieved by messages among multiple computer nodes.Routing network reduces the time required for data exchange and thus system performance is enhanced. Commonly used data routing ... Read More

The topology of an interconnection network can be static or dynamic. Static networks are created point-to-point direct connections which will not alter during implementation. Dynamic networks are applied with switched channels, which are dynamically constructed to connect the communication demand in user programs.Static Networks − Static networks are used for ... Read More

There are few experimental data flow computer projects. The associates at MIT have developed a tagged token architecture for constructing data flow computers.The global architecture incorporates n processing elements (PEs) inter-connected by an n x n routing network. The complete system provides pipelined data flow operations in all n PEs. ... Read More

Traditional computers are founded on a control flow structure by which the series of program implementation is particularly established in the user program. Data flow computers have a high degree of parallelism at the fine-grain instruction-level reduction computers are based on a demand-driven method which commences operation based on the ... Read More

The most popular parallel computers are those that implement programs in MIMD mode. There are two major types of parallel computers such as shared memory multiprocessor & message-passing multi computers. The main difference between multiprocessors & multicomputer lies in memory sharing and the structure used for interprocessor communication.The processor in ... Read More

There are different level of parallelism which are as follows −Instruction Level − At instruction level, a grain is consist of less than 20 instruction called fine grain. Fine-grain parallelism at this level may range from two thousand depending on an individual program single instruction stream parallelism is greater than ... Read More

There are various conditions of Parallelism which are as follows −Data and resource dependencies − A program is made up of several parts, so the ability to implement various program segments in parallel is needed that each segment should be autonomous regarding the other segment. Dependencies in various segments of ... Read More

In many years, computer architecture has gone through evolutional instead of revolution changes supporting features are those that were demonstrated execution delivers.According to the figure we initiated with the Von Neumann architecture developed as a sequential machine implementing scalar information. Sequential devices enhanced from bit serial to word-parallel operations & ... Read More

It is widely observed that certain computer architecture classes and programming language classes correspond to one another. For example von Neumann architectures and imperative languages, or reduction architectures and functional languages. The corresponding architecture and language classes must have a common foundation or paradigm called a computational model.The computational model ... Read More