David W Davis

Title: David W. Davis: Innovator in High-Performance Computing

Introduction

David W. Davis is a notable inventor based in Lexington, MA (US). He has made significant contributions to the field of high-performance computing, particularly through his innovative patent. His work has had a lasting impact on the architecture and performance of large symmetric multiprocessing (SMP) computer systems.

Latest Patents

David W. Davis holds a patent for a "High-performance non-blocking switch with multiple channel ordering constraints." This invention presents an architecture and coherency protocol designed for large SMP computer systems. The hierarchical switch structure allows multiple multi-processor nodes to connect and operate at optimal performance levels. Each multi-processor node features a simultaneous buffering system that enables all processors to function at peak efficiency. The shared memory among nodes includes portions resident at each multi-processor node, enhancing overall performance. Key elements for maintaining memory coherency, such as a victim cache, directory, and transaction tracking table, are integrated into each node. The victim cache selectively updates victim data destined for remote memory, improving memory performance. Additionally, a delayed write buffer at each memory works with the directory to identify victims for writing. An arb bus connected to the output of each node's directory serves as a central ordering point for all messages, which are categorized into different virtual channels based on their processing stage. This innovative use of virtual channels helps maintain data coherency and prevents deadlock issues that could arise in traditional systems.

Career Highlights

David W. Davis is associated with Compaq Computer Corporation, Inc., where he has contributed to advancements in computing technology. His work has been instrumental in enhancing the performance and efficiency of multi-processor systems.

Collaborations

David has collaborated with notable colleagues, including Simon C. Steely, Jr. and Stephen R. VanDoren. Their combined expertise has fostered innovation in the field of high-performance computing.

Conclusion

David W. Davis is a distinguished inventor whose contributions to high-performance computing have significantly advanced the capabilities of SMP systems. His innovative patent reflects a deep understanding of technology and a commitment to improving computing performance.