This C++ program simulates the cache coherence problem graphically.
In computer architecture, cache coherence is the uniformity of shared resource data that ends up stored in multiple local caches. When clients in a system maintain caches of a common memory resource, problems may arise with incoherent data, which is particularly the case with CPUs in a multiprocessing system. (wikipedia)
Cache Coherence Mechanism (12.5 KiB, 6,014 hits)