User talk:14.141.22.141

The NUMA architecture is based on tiered and hierarchical placement of Memory with dedicated bus for localised memory placement. However, the diagram placed for NUMA is actually for UMA architecture where the memory is placed on same bus for access to multi-processor architecture. UMA (Uniform Memory Access) system is a shared memory architecture for the multiprocessors. In this model, a single memory is used and accessed by all the processors present the multiprocessor system with the help of the interconnection network. Each processor has equal memory accessing time (latency) and access speed. NUMA (Non-uniform Memory Access) is also a multiprocessor model in which each processor connected with the dedicated memory. However, these small parts of the memory combine to make a single address space. The main point to ponder here is that unlike UMA, the access time of the memory relies on the distance where the processor is placed which means varying memory access time.