What is a memory cache-write-hit-write-invalidate?

What is a memory cache-write-hit-write-invalidate?

A memory cache-write-hit-write-invalidate is a cache coherence protocol used in computer systems. It refers to a situation where a write operation is performed on a memory location that is already present in the cache and marked as "dirty" (modified). In this case, the cache will update the value in its cache memory and invalidate (mark as invalid) all other copies of the same memory location in other caches to maintain data consistency.