Daniel Ahn

Title: **Daniel Ahn: Innovator in Multiprocessing Systems**

Introduction

Daniel Ahn, based in Yorktown Heights, NY, is a prominent inventor recognized for his significant contributions to the field of multiprocessor systems. With a portfolio of three patents, Ahn has proven himself as a creative force within the technology sector.

Latest Patents

Among his most notable inventions is the patent for a "Multiprocessor system with multiple concurrent modes of execution." This innovative system enhances performance by supporting various modes of speculative execution. The system efficiently manages speculation identification numbers (IDs) allocated to speculative threads, ensuring smooth operations through a well-organized pool divided into domains. Each domain corresponds to a specific mode of speculation, including Transactional Memory (TM), Thread-Level Speculation (TLS), and rollback. Central to this invention is the use of hardware pointers and a central state table for ID allocation, ultimately refining how speculative results are managed within cache memory.

Another significant patent Ahn holds is related to "Reader set encoding for directory of shared cache memory in multiprocessor system." This patent addresses the intricacies of parallel processing systems utilizing speculative execution. It contributes to conflict checking during directory lookups within shared cache memory, ensuring that accesses to physical memory are correctly handled, regardless of which processor initiated the request. The dynamic reader set encoding included in this patent provides crucial insights into which speculative threads have accessed particular lines, enhancing the efficiency of conflict checking mechanisms.

Career Highlights

Daniel Ahn is currently employed at the International Business Machines Corporation (IBM), which is renowned for its advancements in computing systems and technologies. His contributions to IBM and the field of multiprocessor systems accentuate his role as a leading innovator in this competitive industry.

Collaborations

Throughout his career, Ahn has collaborated with talented colleagues, including Luis H. Ceze and Alan G. Gara. These partnerships have undoubtedly enriched his work and have helped drive forward the innovation found in his patents.

Conclusion

Daniel Ahn's inventive spirit and dedication to advancing multiprocessor systems underscore his importance in the field. Through his groundbreaking patents and collaboration with other professionals, Ahn continues to make substantial impacts, shaping the future of computing technology.