What is multiport memory?
Multiport memory is a memory that helps in providing more than one access port to separate processors or to separate parts of one processor. A bus can be used to achieve this kind of access. This mechanism applies to interconnected computers too.
What is multicomputer in computer architecture?
A computer made up of several computers. The term generally refers to an architecture in which each processor has its own memory rather than multiple processors with a shared memory. A multicore computer, although it sounds similar, would not be a multicomputer because the multiple cores share a common memory.
How crossbar switching is different from multiport memory?
Crossbar Switch (for multiprocessors) provides a separate path for each module. Multiport Memory : In Multiport Memory systems, the control, switching & priority arbitration logic are distributed throughout the crossbar switch matrix which is distributed at the interfaces to the memory modules.
What is multi port?
Computers. having more than one port. Machinery. having separate ports for injecting fuel into each cylinder of an engine. Also mul·ti·port·ed .
What is the advantage of multiport memory organization Mcq?
The advantage of the multi port memory organization is the high transfer rate that can be achieved because of the multiple paths between processors and memory.
What is time shared common bus?
1. Time-shared / Common Bus (Interconnection structure in Multiprocessor System) : In a multiprocessor system, the time shar0ed bus interconnection provides a common communication path connecting all the functional units like processor, I/O processor, memory unit etc.
What is the difference between multicomputer and multiprocessors?
Difference between multiprocessor and Multicomputer: Multiprocessor is a system with two or more central processing units (CPUs) that is capable of performing multiple tasks where as a multicomputer is a system with multiple processors that are attached via an interconnection network to perform a computation task.
How do you overcome cache coherence?
One approach is to use what is called an invalidation-based cache coherence protocol. This approach solves the cache coherence problem by ensuring that as soon as a core requests to write to a cache block, that core must invalidate (remove) the copy of the block in any other core’s cache that contains the block.
What are the limitations of a crossbar switch?
The main disadvantage of this system is that, the failure of a single switch will make some subscribers inaccessible. The Crosspoint switch is the abstract of any switch such as the time or space switch. If N connections can be made simultaneously in an NXN switch matrix, it is called the Non-blocking Switch.
What is the advantage of having crossbar architecture?
Crossbar networks allow any processor in the system to connect to any other processor or memory unit so that many processors can communicate simultaneously without contention. A new connection can be established at any time as long as the requested input and output ports are free.
What does the end instruction do?
What does the end instruction do? Explanation: It is basically used to start the generation of a new signal.
What is the main advantage of using a single bus structure?
Explanation: The advantage of single bus architecture is the simplicity of the design wherein all the components will fit on the same bus and hence it’s cost-effective.
What is multiport memory system?
Multiport Memory System employs separate buses between each memory module and each CPU. A processor bus comprises the address, data and control lines necessary to communicate with memory. Each memory module connects each processor bus.
Why do we focus on multi-porting?
We focus on combining multi-porting and evaluating the performance over a range of design parameters. Multi-porting is essential for caches and shared-data systems, especially multi-core System-on-chips (SOC). It can signiﬁcantly increase the memory access throughput.
Is there a novel design for multi-port on-chip memory?
In this thesis, we describe and evaluate novel memory designs for multi-port on-chip and oﬀ-chip use in advanced computer architectures. Multi-porting is essential for caches and shared-data systems. It can signiﬁcantly increase the memory access throughput. For on-chip memories, several FinFET multi-port SRAMs are proposed.
Does multi-porting reduce write access speed for oﬀ-chip memories?
Furthermore, multi-porting by merging IG mode transistors to reduce area does not aﬀect much on the speed of write access. For oﬀ-chip memories, a two-port non-volatile PCM is proposed.