Subhash Sethumurugan

Title: Subhash Sethumurugan: Innovator in Cache Management Technologies

Introduction

Subhash Sethumurugan is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of cache management technologies, holding a total of 3 patents. His work focuses on improving the efficiency of cache systems, which are critical for enhancing the performance of processors.

Latest Patents

One of Subhash's latest patents is titled "Cache line re-reference interval prediction using physical page address." This invention discloses systems, apparatuses, and methods for implementing cache line re-reference interval prediction using a physical page address. When a cache line is accessed, a controller retrieves a re-reference interval counter value associated with the line. If the counter is less than a first threshold, the address of the cache line is stored in a small re-use page buffer. Conversely, if the counter exceeds a second threshold, the address is stored in a large re-use page buffer. When a new cache line is inserted into the cache, if its address is found in the small re-use page buffer, the controller assigns a high priority to the line to ensure it remains in the cache for re-use. If a match is found in the large re-use page buffer, the controller assigns a low priority to the line, biasing it towards eviction.

Another significant patent is focused on "Cache management based on reuse distance." This invention involves a cache of a processor that includes a cache controller to implement a cache management policy for the insertion and replacement of cache lines. The policy assigns replacement priority levels to each cache line based on a comparison of the number of accesses to a cache set since the cache line was last accessed, relative to a reuse distance determined for the region of the cache.

Career Highlights

Subhash Sethumurugan is currently employed at Advanced Micro Devices Corporation, a leading company in the semiconductor industry. His work at AMD has allowed him to contribute to cutting-edge technologies that enhance processor performance and efficiency.

Collaborations

Throughout his career, Subhash has collaborated with talented individuals such as Jieming Yin and Yasuko Eckert. These collaborations have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Subhash Sethumurugan is a prominent inventor whose work in cache management technologies has made a significant impact on the field. His