PSEUDO-RANDOM WAY SELECTION

Organization Name

Inventor(s)

David Matthew Thompson of Dallas TX (US)

PSEUDO-RANDOM WAY SELECTION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240345868 titled 'PSEUDO-RANDOM WAY SELECTION

Simplified Explanation: The patent application describes a method for allocating a line in an n-way set associative cache based on the cache coherence state of the ways in the cache.

Key Features and Innovation:

Method involves allocating a way in response to an invalid cache coherence state.
Random selection of a way if no invalid states are present.
Allocation of a selected way if no pending requests are present.

Potential Applications: This technology can be applied in computer systems, servers, and other devices utilizing cache memory for efficient data storage and retrieval.

Problems Solved: This method addresses the issue of efficiently allocating cache lines in a set associative cache based on the cache coherence state of the ways.

Benefits:

Improved cache allocation efficiency.
Enhanced performance in data storage and retrieval.
Optimal utilization of cache memory resources.

Commercial Applications: The technology can be utilized in high-performance computing systems, data centers, and networking equipment to enhance overall system performance and efficiency.

Prior Art: Prior research in cache memory management and allocation algorithms can provide insights into similar approaches in the field.

Frequently Updated Research: Stay updated on advancements in cache memory management, cache coherence protocols, and related technologies to enhance the efficiency of cache allocation methods.

Questions about Cache Allocation: 1. What are the key factors influencing cache allocation efficiency in set associative caches? 2. How does cache coherence impact the allocation of cache lines in multi-way set associative caches?

Original Abstract Submitted

a method includes receiving a first request to allocate a line in an n-way set associative cache and, in response to a cache coherence state of a way indicating that a cache line stored in the way is invalid, allocating the way for the first request. the method also includes, in response to no ways in the set having a cache coherence state indicating that the cache line stored in the way is invalid, randomly selecting one of the ways in the set. the method also includes, in response to a cache coherence state of the selected way indicating that another request is not pending for the selected way, allocating the selected way for the first request.