Why may the time required to access a memory location in a shared-memory architecture vary based on the memory location accessed?
Why may the time required to access a memory location in a shared-memory architecture vary based on the memory location accessed?
The two models are used by shared memory architecture:-
1) UMA(Uniform memory access):-
UMA is the shared memory architecture and use in parallel computer.
The Uniform memory access has a single memory controllers.
Uniform memory access memory access slow.
Uniform memory access has equal storage access time
Uniform Memory Access in a shared-memory architecture involves multiple processors similar to those that have access to And have the same level of access and access time of shared memory.
NUMA(Non-uniform memory access):-
The Non-Uniform Memory Access has multiple memory controller.
Non-Uniform Memory Access memory access is faster than Uniform Memory Access storage.
The Non-Uniform Memory has varying memory access time.
The Non-Uniform Memory Access (NUMA) uses multiprocessing in shared memory architecture. depends on the memory locations relative to the processor because each processor has its own local memory which is faster than non-local memory.
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